./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 e2fb8bed 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-?-e2fb8be-m [2025-03-09 02:27:07,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:27:07,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:27:07,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:27:07,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:27:07,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:27:07,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:27:07,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:27:07,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:27:07,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:27:07,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:27:07,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:27:07,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:27:07,272 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:27:07,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:27:07,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:27:07,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:27:07,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:27:07,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:27:07,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:27:07,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:27:07,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:27:07,273 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 [2025-03-09 02:27:07,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:27:07,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:27:07,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:27:07,518 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:27:07,518 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:27:07,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound10.c [2025-03-09 02:27:08,759 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47809e5b7/fbdcf58ba827435d969c2385b597c997/FLAG51bd17d79 [2025-03-09 02:27:08,998 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:27:08,999 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound10.c [2025-03-09 02:27:09,005 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47809e5b7/fbdcf58ba827435d969c2385b597c997/FLAG51bd17d79 [2025-03-09 02:27:09,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47809e5b7/fbdcf58ba827435d969c2385b597c997 [2025-03-09 02:27:09,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:27:09,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:27:09,333 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:27:09,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:27:09,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:27:09,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efd54e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09, skipping insertion in model container [2025-03-09 02:27:09,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,347 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:27:09,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:27:09,483 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:27:09,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:27:09,504 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:27:09,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09 WrapperNode [2025-03-09 02:27:09,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:27:09,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:27:09,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:27:09,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:27:09,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,524 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-03-09 02:27:09,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:27:09,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:27:09,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:27:09,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:27:09,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,533 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,549 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]. [2025-03-09 02:27:09,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,550 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,552 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,555 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:27:09,557 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:27:09,557 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:27:09,557 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:27:09,561 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (1/1) ... [2025-03-09 02:27:09,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:27:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:09,595 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) [2025-03-09 02:27:09,601 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 [2025-03-09 02:27:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:27:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:27:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:27:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:27:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:27:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:27:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:27:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:27:09,666 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:27:09,668 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:27:09,907 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2025-03-09 02:27:09,911 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:27:09,922 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:27:09,923 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:27:09,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:27:09 BoogieIcfgContainer [2025-03-09 02:27:09,924 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:27:09,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:27:09,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:27:09,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:27:09,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:27:09" (1/3) ... [2025-03-09 02:27:09,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35acc62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:27:09, skipping insertion in model container [2025-03-09 02:27:09,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:27:09" (2/3) ... [2025-03-09 02:27:09,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35acc62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:27:09, skipping insertion in model container [2025-03-09 02:27:09,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:27:09" (3/3) ... [2025-03-09 02:27:09,934 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound10.c [2025-03-09 02:27:09,945 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:27:09,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_unwindbound10.c that has 3 procedures, 69 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2025-03-09 02:27:09,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:27:10,006 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;@9aeb5e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:27:10,007 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-09 02:27:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 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) [2025-03-09 02:27:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-09 02:27:10,015 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:10,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:10,016 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)] === [2025-03-09 02:27:10,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1896484220, now seen corresponding path program 1 times [2025-03-09 02:27:10,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:10,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79482696] [2025-03-09 02:27:10,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:10,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:10,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:27:10,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:27:10,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:10,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:10,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:10,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79482696] [2025-03-09 02:27:10,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79482696] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:10,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:27:10,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:27:10,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108155615] [2025-03-09 02:27:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:10,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:27:10,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:10,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:27:10,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:27:10,239 INFO L87 Difference]: Start difference. First operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 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 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-03-09 02:27:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:10,309 INFO L93 Difference]: Finished difference Result 138 states and 159 transitions. [2025-03-09 02:27:10,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:27:10,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 15 [2025-03-09 02:27:10,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:10,316 INFO L225 Difference]: With dead ends: 138 [2025-03-09 02:27:10,316 INFO L226 Difference]: Without dead ends: 66 [2025-03-09 02:27:10,319 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 [2025-03-09 02:27:10,321 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 9 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:10,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 190 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:27:10,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-03-09 02:27:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2025-03-09 02:27:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 60 states have internal predecessors, (63), 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) [2025-03-09 02:27:10,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2025-03-09 02:27:10,348 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 15 [2025-03-09 02:27:10,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:10,349 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2025-03-09 02:27:10,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-03-09 02:27:10,350 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2025-03-09 02:27:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-09 02:27:10,350 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:10,351 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:10,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 02:27:10,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:10,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:10,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2133360073, now seen corresponding path program 1 times [2025-03-09 02:27:10,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:10,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537473065] [2025-03-09 02:27:10,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:10,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:10,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 02:27:10,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 02:27:10,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:10,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:10,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825867232] [2025-03-09 02:27:10,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:10,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:10,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:10,373 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) [2025-03-09 02:27:10,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:27:10,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 02:27:10,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 02:27:10,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:10,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:10,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:27:10,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:10,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:10,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:27:10,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:10,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537473065] [2025-03-09 02:27:10,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:10,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825867232] [2025-03-09 02:27:10,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825867232] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:10,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:27:10,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:27:10,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293440468] [2025-03-09 02:27:10,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:10,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:27:10,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:10,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:27:10,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:27:10,447 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2025-03-09 02:27:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:10,522 INFO L93 Difference]: Finished difference Result 105 states and 117 transitions. [2025-03-09 02:27:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:27:10,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 18 [2025-03-09 02:27:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:10,523 INFO L225 Difference]: With dead ends: 105 [2025-03-09 02:27:10,524 INFO L226 Difference]: Without dead ends: 99 [2025-03-09 02:27:10,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:27:10,524 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 29 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 91 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 [2025-03-09 02:27:10,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 91 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:10,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-09 02:27:10,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2025-03-09 02:27:10,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.639344262295082) internal successors, (100), 82 states have internal predecessors, (100), 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) [2025-03-09 02:27:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 108 transitions. [2025-03-09 02:27:10,531 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 108 transitions. Word has length 18 [2025-03-09 02:27:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:10,531 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 108 transitions. [2025-03-09 02:27:10,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2025-03-09 02:27:10,532 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 108 transitions. [2025-03-09 02:27:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-09 02:27:10,532 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:10,532 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:10,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 02:27:10,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:10,733 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:10,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:10,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1459629483, now seen corresponding path program 1 times [2025-03-09 02:27:10,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:10,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864459914] [2025-03-09 02:27:10,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:10,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:10,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:27:10,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:27:10,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:10,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:10,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:10,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864459914] [2025-03-09 02:27:10,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864459914] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:10,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:27:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:27:10,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229936814] [2025-03-09 02:27:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:10,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:27:10,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:10,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:27:10,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:27:10,808 INFO L87 Difference]: Start difference. First operand 89 states and 108 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) [2025-03-09 02:27:10,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:10,904 INFO L93 Difference]: Finished difference Result 139 states and 176 transitions. [2025-03-09 02:27:10,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:27:10,904 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 [2025-03-09 02:27:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:10,906 INFO L225 Difference]: With dead ends: 139 [2025-03-09 02:27:10,906 INFO L226 Difference]: Without dead ends: 132 [2025-03-09 02:27:10,906 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 [2025-03-09 02:27:10,907 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 42 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:10,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 92 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:10,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-03-09 02:27:10,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 125. [2025-03-09 02:27:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 95 states have (on average 1.5894736842105264) internal successors, (151), 116 states have internal predecessors, (151), 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) [2025-03-09 02:27:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 163 transitions. [2025-03-09 02:27:10,920 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 163 transitions. Word has length 20 [2025-03-09 02:27:10,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:10,920 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 163 transitions. [2025-03-09 02:27:10,920 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) [2025-03-09 02:27:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 163 transitions. [2025-03-09 02:27:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-09 02:27:10,920 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:10,921 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:10,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 02:27:10,921 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:10,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:10,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1996126294, now seen corresponding path program 1 times [2025-03-09 02:27:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:10,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592977539] [2025-03-09 02:27:10,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:10,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:10,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:27:10,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:27:10,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:10,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:11,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:11,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592977539] [2025-03-09 02:27:11,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592977539] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:11,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:27:11,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:27:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589826484] [2025-03-09 02:27:11,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:11,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:27:11,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:11,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:27:11,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:27:11,023 INFO L87 Difference]: Start difference. First operand 125 states and 163 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) [2025-03-09 02:27:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:11,098 INFO L93 Difference]: Finished difference Result 136 states and 166 transitions. [2025-03-09 02:27:11,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:27:11,099 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 [2025-03-09 02:27:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:11,099 INFO L225 Difference]: With dead ends: 136 [2025-03-09 02:27:11,099 INFO L226 Difference]: Without dead ends: 127 [2025-03-09 02:27:11,100 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 [2025-03-09 02:27:11,100 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 42 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:11,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 96 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-03-09 02:27:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2025-03-09 02:27:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.5604395604395604) internal successors, (142), 112 states have internal predecessors, (142), 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) [2025-03-09 02:27:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2025-03-09 02:27:11,119 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 154 transitions. Word has length 21 [2025-03-09 02:27:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:11,119 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 154 transitions. [2025-03-09 02:27:11,119 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) [2025-03-09 02:27:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2025-03-09 02:27:11,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 02:27:11,120 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:11,120 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:11,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 02:27:11,120 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:11,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1750372979, now seen corresponding path program 1 times [2025-03-09 02:27:11,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:11,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655844882] [2025-03-09 02:27:11,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:11,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:11,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:27:11,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:27:11,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:11,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:11,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:11,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:11,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655844882] [2025-03-09 02:27:11,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655844882] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:11,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626083635] [2025-03-09 02:27:11,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:11,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:11,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:11,273 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) [2025-03-09 02:27:11,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:27:11,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:27:11,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:27:11,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:11,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:11,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:27:11,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:11,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:11,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:27:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626083635] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:11,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:11,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:27:11,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163347324] [2025-03-09 02:27:11,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:11,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:27:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:11,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:27:11,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:11,419 INFO L87 Difference]: Start difference. First operand 121 states and 154 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) [2025-03-09 02:27:11,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:11,522 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2025-03-09 02:27:11,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:27:11,522 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 [2025-03-09 02:27:11,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:11,523 INFO L225 Difference]: With dead ends: 124 [2025-03-09 02:27:11,523 INFO L226 Difference]: Without dead ends: 123 [2025-03-09 02:27:11,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:27:11,524 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 81 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 76 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 [2025-03-09 02:27:11,524 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 76 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:11,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2025-03-09 02:27:11,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2025-03-09 02:27:11,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.5494505494505495) internal successors, (141), 112 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) [2025-03-09 02:27:11,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 153 transitions. [2025-03-09 02:27:11,536 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 153 transitions. Word has length 22 [2025-03-09 02:27:11,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:11,536 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 153 transitions. [2025-03-09 02:27:11,536 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) [2025-03-09 02:27:11,536 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 153 transitions. [2025-03-09 02:27:11,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 02:27:11,536 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:11,536 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] [2025-03-09 02:27:11,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 02:27:11,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:11,742 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:11,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1573012492, now seen corresponding path program 1 times [2025-03-09 02:27:11,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:11,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092806462] [2025-03-09 02:27:11,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:11,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:11,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:27:11,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:27:11,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:11,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:11,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155826572] [2025-03-09 02:27:11,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:11,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:11,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:11,754 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) [2025-03-09 02:27:11,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:27:11,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:27:11,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:27:11,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:11,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:11,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:27:11,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:11,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:11,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:27:11,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:11,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092806462] [2025-03-09 02:27:11,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:11,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155826572] [2025-03-09 02:27:11,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155826572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:11,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:27:11,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:27:11,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987157284] [2025-03-09 02:27:11,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:11,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:27:11,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:11,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:27:11,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:27:11,863 INFO L87 Difference]: Start difference. First operand 121 states and 153 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-03-09 02:27:11,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:11,935 INFO L93 Difference]: Finished difference Result 122 states and 153 transitions. [2025-03-09 02:27:11,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:27:11,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 23 [2025-03-09 02:27:11,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:11,938 INFO L225 Difference]: With dead ends: 122 [2025-03-09 02:27:11,938 INFO L226 Difference]: Without dead ends: 121 [2025-03-09 02:27:11,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:27:11,939 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 74 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 81 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 [2025-03-09 02:27:11,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 81 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:11,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-09 02:27:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2025-03-09 02:27:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.5384615384615385) internal successors, (140), 112 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) [2025-03-09 02:27:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 152 transitions. [2025-03-09 02:27:11,950 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 152 transitions. Word has length 23 [2025-03-09 02:27:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:11,950 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 152 transitions. [2025-03-09 02:27:11,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2025-03-09 02:27:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 152 transitions. [2025-03-09 02:27:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-09 02:27:11,951 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:11,951 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] [2025-03-09 02:27:11,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:12,151 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 [2025-03-09 02:27:12,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:12,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:12,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1588865637, now seen corresponding path program 1 times [2025-03-09 02:27:12,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:12,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343751952] [2025-03-09 02:27:12,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:12,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:12,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 02:27:12,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 02:27:12,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:12,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:12,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343751952] [2025-03-09 02:27:12,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343751952] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:12,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503735786] [2025-03-09 02:27:12,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:12,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:12,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:12,230 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) [2025-03-09 02:27:12,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 02:27:12,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-09 02:27:12,263 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-09 02:27:12,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:12,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:12,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:27:12,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:12,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:12,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:12,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503735786] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:12,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:12,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-09 02:27:12,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886170528] [2025-03-09 02:27:12,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:12,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:27:12,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:12,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:27:12,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:12,396 INFO L87 Difference]: Start difference. First operand 121 states and 152 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2025-03-09 02:27:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:12,489 INFO L93 Difference]: Finished difference Result 192 states and 239 transitions. [2025-03-09 02:27:12,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:27:12,489 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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 35 [2025-03-09 02:27:12,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:12,490 INFO L225 Difference]: With dead ends: 192 [2025-03-09 02:27:12,490 INFO L226 Difference]: Without dead ends: 190 [2025-03-09 02:27:12,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:12,491 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 150 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 249 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 [2025-03-09 02:27:12,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 249 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:12,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-03-09 02:27:12,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 168. [2025-03-09 02:27:12,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 136 states have (on average 1.5441176470588236) internal successors, (210), 157 states have internal predecessors, (210), 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) [2025-03-09 02:27:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 226 transitions. [2025-03-09 02:27:12,503 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 226 transitions. Word has length 35 [2025-03-09 02:27:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:12,503 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 226 transitions. [2025-03-09 02:27:12,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2025-03-09 02:27:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 226 transitions. [2025-03-09 02:27:12,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-09 02:27:12,504 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:12,504 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, 1] [2025-03-09 02:27:12,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:12,704 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 [2025-03-09 02:27:12,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:12,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:12,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2010194509, now seen corresponding path program 1 times [2025-03-09 02:27:12,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:12,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733789468] [2025-03-09 02:27:12,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:12,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:12,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-09 02:27:12,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-09 02:27:12,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:12,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:12,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:12,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733789468] [2025-03-09 02:27:12,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733789468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:12,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:27:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:27:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392149741] [2025-03-09 02:27:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:27:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:12,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:27:12,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:27:12,737 INFO L87 Difference]: Start difference. First operand 168 states and 226 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-09 02:27:12,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:12,777 INFO L93 Difference]: Finished difference Result 178 states and 235 transitions. [2025-03-09 02:27:12,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:27:12,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 36 [2025-03-09 02:27:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:12,779 INFO L225 Difference]: With dead ends: 178 [2025-03-09 02:27:12,779 INFO L226 Difference]: Without dead ends: 176 [2025-03-09 02:27:12,780 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 [2025-03-09 02:27:12,780 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 80 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 79 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 [2025-03-09 02:27:12,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 79 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:27:12,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-09 02:27:12,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 166. [2025-03-09 02:27:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 136 states have (on average 1.5073529411764706) internal successors, (205), 155 states have internal predecessors, (205), 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) [2025-03-09 02:27:12,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 221 transitions. [2025-03-09 02:27:12,788 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 221 transitions. Word has length 36 [2025-03-09 02:27:12,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:12,788 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 221 transitions. [2025-03-09 02:27:12,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-09 02:27:12,788 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 221 transitions. [2025-03-09 02:27:12,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 02:27:12,789 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:12,789 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, 1] [2025-03-09 02:27:12,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 02:27:12,790 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:12,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:12,791 INFO L85 PathProgramCache]: Analyzing trace with hash 938360849, now seen corresponding path program 1 times [2025-03-09 02:27:12,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:12,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493403184] [2025-03-09 02:27:12,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:12,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:12,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:27:12,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:27:12,800 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:12,800 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:12,857 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:12,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:12,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493403184] [2025-03-09 02:27:12,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493403184] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:12,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943973806] [2025-03-09 02:27:12,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:12,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:12,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:12,860 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) [2025-03-09 02:27:12,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 02:27:12,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:27:12,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:27:12,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:12,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:12,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:27:12,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:12,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:12,936 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:27:12,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943973806] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:12,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:12,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-09 02:27:12,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932127964] [2025-03-09 02:27:12,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:12,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:27:12,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:12,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:27:12,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:27:12,938 INFO L87 Difference]: Start difference. First operand 166 states and 221 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) [2025-03-09 02:27:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:12,961 INFO L93 Difference]: Finished difference Result 166 states and 221 transitions. [2025-03-09 02:27:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:27:12,961 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 [2025-03-09 02:27:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:12,962 INFO L225 Difference]: With dead ends: 166 [2025-03-09 02:27:12,962 INFO L226 Difference]: Without dead ends: 165 [2025-03-09 02:27:12,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:12,963 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 42 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:12,963 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 166 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:27:12,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2025-03-09 02:27:12,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2025-03-09 02:27:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 136 states have (on average 1.4705882352941178) internal successors, (200), 154 states have internal predecessors, (200), 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) [2025-03-09 02:27:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2025-03-09 02:27:12,971 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 38 [2025-03-09 02:27:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:12,971 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2025-03-09 02:27:12,971 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) [2025-03-09 02:27:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2025-03-09 02:27:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 02:27:12,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:12,972 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, 1] [2025-03-09 02:27:12,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:13,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:13,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:13,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:13,173 INFO L85 PathProgramCache]: Analyzing trace with hash -975584732, now seen corresponding path program 1 times [2025-03-09 02:27:13,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:13,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148265034] [2025-03-09 02:27:13,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:13,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:13,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:27:13,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:27:13,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:13,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:13,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:13,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:13,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148265034] [2025-03-09 02:27:13,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148265034] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:13,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418801901] [2025-03-09 02:27:13,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:13,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:13,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:13,268 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) [2025-03-09 02:27:13,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 02:27:13,289 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:27:13,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:27:13,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:13,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:13,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:27:13,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:13,341 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:13,342 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:27:13,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418801901] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:13,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:13,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-09 02:27:13,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800983646] [2025-03-09 02:27:13,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:13,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:27:13,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:13,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:27:13,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:27:13,343 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2025-03-09 02:27:13,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:13,381 INFO L93 Difference]: Finished difference Result 175 states and 225 transitions. [2025-03-09 02:27:13,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:27:13,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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 39 [2025-03-09 02:27:13,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:13,383 INFO L225 Difference]: With dead ends: 175 [2025-03-09 02:27:13,383 INFO L226 Difference]: Without dead ends: 174 [2025-03-09 02:27:13,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:27:13,384 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:13,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:27:13,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-09 02:27:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2025-03-09 02:27:13,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 136 states have (on average 1.4338235294117647) internal successors, (195), 153 states have internal predecessors, (195), 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) [2025-03-09 02:27:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2025-03-09 02:27:13,397 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 39 [2025-03-09 02:27:13,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:13,397 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2025-03-09 02:27:13,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2025-03-09 02:27:13,398 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2025-03-09 02:27:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:27:13,398 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:13,398 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, 1] [2025-03-09 02:27:13,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 02:27:13,605 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 [2025-03-09 02:27:13,605 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:13,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:13,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1234056318, now seen corresponding path program 1 times [2025-03-09 02:27:13,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:13,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580098660] [2025-03-09 02:27:13,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:13,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:13,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:27:13,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:27:13,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:13,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:13,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424368183] [2025-03-09 02:27:13,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:13,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:13,620 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) [2025-03-09 02:27:13,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 02:27:13,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:27:13,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:27:13,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:13,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:13,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:27:13,653 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:13,773 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:13,773 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:13,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:13,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580098660] [2025-03-09 02:27:13,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:13,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424368183] [2025-03-09 02:27:13,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424368183] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:13,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:13,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-09 02:27:13,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908724864] [2025-03-09 02:27:13,926 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:13,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:27:13,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:13,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:27:13,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:13,927 INFO L87 Difference]: Start difference. First operand 164 states and 211 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) [2025-03-09 02:27:14,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:14,030 INFO L93 Difference]: Finished difference Result 171 states and 214 transitions. [2025-03-09 02:27:14,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:27:14,031 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 [2025-03-09 02:27:14,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:14,032 INFO L225 Difference]: With dead ends: 171 [2025-03-09 02:27:14,032 INFO L226 Difference]: Without dead ends: 164 [2025-03-09 02:27:14,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:27:14,033 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:14,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 92 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:14,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-03-09 02:27:14,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2025-03-09 02:27:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 149 states have internal predecessors, (182), 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) [2025-03-09 02:27:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 198 transitions. [2025-03-09 02:27:14,040 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 198 transitions. Word has length 41 [2025-03-09 02:27:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:14,040 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 198 transitions. [2025-03-09 02:27:14,040 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) [2025-03-09 02:27:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 198 transitions. [2025-03-09 02:27:14,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:27:14,041 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:14,041 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, 1] [2025-03-09 02:27:14,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 02:27:14,241 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 [2025-03-09 02:27:14,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:14,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:14,242 INFO L85 PathProgramCache]: Analyzing trace with hash 398959821, now seen corresponding path program 1 times [2025-03-09 02:27:14,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:14,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347115199] [2025-03-09 02:27:14,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:14,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:14,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:27:14,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:27:14,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:14,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:14,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641081631] [2025-03-09 02:27:14,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:14,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:14,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:14,258 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) [2025-03-09 02:27:14,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 02:27:14,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:27:14,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:27:14,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:14,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:14,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:27:14,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:14,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:14,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:14,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347115199] [2025-03-09 02:27:14,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:14,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641081631] [2025-03-09 02:27:14,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641081631] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:14,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:14,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-09 02:27:14,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237424334] [2025-03-09 02:27:14,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:14,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:27:14,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:14,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:27:14,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:14,611 INFO L87 Difference]: Start difference. First operand 160 states and 198 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 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) [2025-03-09 02:27:14,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:14,712 INFO L93 Difference]: Finished difference Result 216 states and 266 transitions. [2025-03-09 02:27:14,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:27:14,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 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 [2025-03-09 02:27:14,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:14,714 INFO L225 Difference]: With dead ends: 216 [2025-03-09 02:27:14,714 INFO L226 Difference]: Without dead ends: 211 [2025-03-09 02:27:14,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:14,715 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:14,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 116 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:14,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2025-03-09 02:27:14,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2025-03-09 02:27:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 190 states have internal predecessors, (233), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-09 02:27:14,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 253 transitions. [2025-03-09 02:27:14,725 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 253 transitions. Word has length 42 [2025-03-09 02:27:14,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:14,726 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 253 transitions. [2025-03-09 02:27:14,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 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) [2025-03-09 02:27:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 253 transitions. [2025-03-09 02:27:14,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-09 02:27:14,728 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:14,728 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, 1] [2025-03-09 02:27:14,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-09 02:27:14,929 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 [2025-03-09 02:27:14,929 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:14,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:14,929 INFO L85 PathProgramCache]: Analyzing trace with hash 326932543, now seen corresponding path program 1 times [2025-03-09 02:27:14,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:14,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593374558] [2025-03-09 02:27:14,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:14,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:14,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:27:14,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:27:14,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:14,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:14,983 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:14,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593374558] [2025-03-09 02:27:14,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593374558] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:14,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466716151] [2025-03-09 02:27:14,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:14,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:14,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:14,986 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) [2025-03-09 02:27:14,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 02:27:15,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:27:15,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:27:15,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:15,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:15,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:27:15,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:15,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:27:15,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466716151] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:27:15,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:15,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-09 02:27:15,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520372473] [2025-03-09 02:27:15,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:27:15,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:27:15,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:15,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:27:15,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:27:15,116 INFO L87 Difference]: Start difference. First operand 203 states and 253 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2025-03-09 02:27:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:15,178 INFO L93 Difference]: Finished difference Result 203 states and 253 transitions. [2025-03-09 02:27:15,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:27:15,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 43 [2025-03-09 02:27:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:15,180 INFO L225 Difference]: With dead ends: 203 [2025-03-09 02:27:15,180 INFO L226 Difference]: Without dead ends: 201 [2025-03-09 02:27:15,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:27:15,181 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:15,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 70 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2025-03-09 02:27:15,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2025-03-09 02:27:15,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 185 states have internal predecessors, (227), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-09 02:27:15,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2025-03-09 02:27:15,188 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 43 [2025-03-09 02:27:15,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:15,189 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2025-03-09 02:27:15,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2025-03-09 02:27:15,189 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2025-03-09 02:27:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:27:15,189 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:15,189 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, 1] [2025-03-09 02:27:15,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:15,390 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 [2025-03-09 02:27:15,390 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:15,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:15,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1544974252, now seen corresponding path program 1 times [2025-03-09 02:27:15,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:15,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838970691] [2025-03-09 02:27:15,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:15,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:15,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:27:15,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:27:15,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:15,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:15,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838970691] [2025-03-09 02:27:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838970691] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556768709] [2025-03-09 02:27:15,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:15,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:15,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:15,478 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) [2025-03-09 02:27:15,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 02:27:15,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:27:15,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:27:15,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:15,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:15,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:27:15,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:15,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:15,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556768709] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:15,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:27:15,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2025-03-09 02:27:15,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298775175] [2025-03-09 02:27:15,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:15,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:27:15,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:15,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:27:15,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:15,659 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:27:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:15,810 INFO L93 Difference]: Finished difference Result 206 states and 251 transitions. [2025-03-09 02:27:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:27:15,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2025-03-09 02:27:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:15,811 INFO L225 Difference]: With dead ends: 206 [2025-03-09 02:27:15,811 INFO L226 Difference]: Without dead ends: 198 [2025-03-09 02:27:15,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:27:15,812 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 24 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:15,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 192 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2025-03-09 02:27:15,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2025-03-09 02:27:15,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 185 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-09 02:27:15,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2025-03-09 02:27:15,819 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 44 [2025-03-09 02:27:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:15,819 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2025-03-09 02:27:15,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:27:15,819 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2025-03-09 02:27:15,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:27:15,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:15,820 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, 1] [2025-03-09 02:27:15,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-09 02:27:16,020 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 [2025-03-09 02:27:16,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:16,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:16,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1237532222, now seen corresponding path program 1 times [2025-03-09 02:27:16,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:16,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532866870] [2025-03-09 02:27:16,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:16,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:16,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:27:16,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:27:16,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:16,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:16,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:16,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532866870] [2025-03-09 02:27:16,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532866870] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:16,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41138146] [2025-03-09 02:27:16,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:16,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:16,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:16,172 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) [2025-03-09 02:27:16,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 02:27:16,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:27:16,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:27:16,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:16,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:16,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 02:27:16,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:16,298 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:16,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:27:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41138146] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:16,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-09 02:27:16,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83884575] [2025-03-09 02:27:16,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:16,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-09 02:27:16,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:16,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-09 02:27:16,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:27:16,524 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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) [2025-03-09 02:27:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:16,772 INFO L93 Difference]: Finished difference Result 208 states and 249 transitions. [2025-03-09 02:27:16,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:27:16,772 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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 45 [2025-03-09 02:27:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:16,773 INFO L225 Difference]: With dead ends: 208 [2025-03-09 02:27:16,773 INFO L226 Difference]: Without dead ends: 205 [2025-03-09 02:27:16,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2025-03-09 02:27:16,774 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 185 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:16,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 149 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:16,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2025-03-09 02:27:16,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2025-03-09 02:27:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.2244897959183674) internal successors, (180), 154 states have internal predecessors, (180), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:27:16,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2025-03-09 02:27:16,781 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 45 [2025-03-09 02:27:16,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:16,781 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2025-03-09 02:27:16,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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) [2025-03-09 02:27:16,782 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2025-03-09 02:27:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:27:16,782 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:16,782 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, 1] [2025-03-09 02:27:16,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-09 02:27:16,982 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 [2025-03-09 02:27:16,982 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:16,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash -291206775, now seen corresponding path program 1 times [2025-03-09 02:27:16,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:16,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888360630] [2025-03-09 02:27:16,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:16,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:16,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:27:16,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:27:16,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:16,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:16,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842667563] [2025-03-09 02:27:16,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:16,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:16,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:16,994 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) [2025-03-09 02:27:16,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 02:27:17,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:27:17,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:27:17,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:17,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:17,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:27:17,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:17,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:17,198 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:17,287 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:27:17,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:17,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888360630] [2025-03-09 02:27:17,288 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:17,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842667563] [2025-03-09 02:27:17,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842667563] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:17,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:27:17,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-09 02:27:17,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849729631] [2025-03-09 02:27:17,288 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:17,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:27:17,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:17,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:27:17,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:17,289 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 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) [2025-03-09 02:27:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:17,491 INFO L93 Difference]: Finished difference Result 273 states and 325 transitions. [2025-03-09 02:27:17,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:27:17,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 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 46 [2025-03-09 02:27:17,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:17,493 INFO L225 Difference]: With dead ends: 273 [2025-03-09 02:27:17,493 INFO L226 Difference]: Without dead ends: 190 [2025-03-09 02:27:17,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:27:17,494 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 109 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:17,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 112 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:17,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-03-09 02:27:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2025-03-09 02:27:17,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 165 states have (on average 1.1636363636363636) internal successors, (192), 171 states have internal predecessors, (192), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-09 02:27:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 212 transitions. [2025-03-09 02:27:17,504 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 212 transitions. Word has length 46 [2025-03-09 02:27:17,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:17,504 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 212 transitions. [2025-03-09 02:27:17,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 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) [2025-03-09 02:27:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 212 transitions. [2025-03-09 02:27:17,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-09 02:27:17,505 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:17,505 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, 1] [2025-03-09 02:27:17,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-09 02:27:17,706 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 [2025-03-09 02:27:17,706 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:17,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:17,706 INFO L85 PathProgramCache]: Analyzing trace with hash 528317720, now seen corresponding path program 2 times [2025-03-09 02:27:17,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:17,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32652418] [2025-03-09 02:27:17,707 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:17,712 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-09 02:27:17,721 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-03-09 02:27:17,721 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:17,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:17,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [513660680] [2025-03-09 02:27:17,722 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:17,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:17,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:17,727 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) [2025-03-09 02:27:17,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 02:27:17,747 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 65 statements into 2 equivalence classes. [2025-03-09 02:27:17,760 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 65 of 65 statements. [2025-03-09 02:27:17,761 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:17,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:17,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 02:27:17,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:17,880 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:27:17,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:18,011 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:27:18,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:18,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32652418] [2025-03-09 02:27:18,011 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:18,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513660680] [2025-03-09 02:27:18,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513660680] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:18,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:27:18,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-09 02:27:18,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207454094] [2025-03-09 02:27:18,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:18,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 02:27:18,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:18,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 02:27:18,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:27:18,012 INFO L87 Difference]: Start difference. First operand 184 states and 212 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 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) [2025-03-09 02:27:18,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:18,393 INFO L93 Difference]: Finished difference Result 387 states and 459 transitions. [2025-03-09 02:27:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:27:18,393 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 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 65 [2025-03-09 02:27:18,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:18,395 INFO L225 Difference]: With dead ends: 387 [2025-03-09 02:27:18,395 INFO L226 Difference]: Without dead ends: 376 [2025-03-09 02:27:18,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:27:18,396 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 155 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:18,396 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 300 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:27:18,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-03-09 02:27:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 354. [2025-03-09 02:27:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 327 states have (on average 1.1681957186544343) internal successors, (382), 333 states have internal predecessors, (382), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-09 02:27:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 418 transitions. [2025-03-09 02:27:18,415 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 418 transitions. Word has length 65 [2025-03-09 02:27:18,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:18,415 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 418 transitions. [2025-03-09 02:27:18,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 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) [2025-03-09 02:27:18,415 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 418 transitions. [2025-03-09 02:27:18,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-09 02:27:18,416 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:18,416 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 1] [2025-03-09 02:27:18,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-09 02:27:18,620 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 [2025-03-09 02:27:18,621 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:18,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:18,621 INFO L85 PathProgramCache]: Analyzing trace with hash 301635478, now seen corresponding path program 2 times [2025-03-09 02:27:18,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:18,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856662572] [2025-03-09 02:27:18,621 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:18,627 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-09 02:27:18,634 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-09 02:27:18,635 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:18,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 02:27:18,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:18,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856662572] [2025-03-09 02:27:18,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856662572] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:18,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800374032] [2025-03-09 02:27:18,735 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:18,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:18,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:18,737 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) [2025-03-09 02:27:18,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 02:27:18,758 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 67 statements into 2 equivalence classes. [2025-03-09 02:27:18,770 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 67 of 67 statements. [2025-03-09 02:27:18,770 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:18,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:18,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:27:18,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:18,918 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:27:18,918 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:23,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800374032] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:23,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:27:23,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2025-03-09 02:27:23,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407295443] [2025-03-09 02:27:23,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:23,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:27:23,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:23,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:27:23,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=112, Unknown=1, NotChecked=0, Total=156 [2025-03-09 02:27:23,089 INFO L87 Difference]: Start difference. First operand 354 states and 418 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 02:27:23,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:23,299 INFO L93 Difference]: Finished difference Result 383 states and 450 transitions. [2025-03-09 02:27:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:27:23,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 67 [2025-03-09 02:27:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:23,302 INFO L225 Difference]: With dead ends: 383 [2025-03-09 02:27:23,302 INFO L226 Difference]: Without dead ends: 375 [2025-03-09 02:27:23,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=69, Invalid=170, Unknown=1, NotChecked=0, Total=240 [2025-03-09 02:27:23,303 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:23,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 189 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:27:23,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-09 02:27:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2025-03-09 02:27:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 345 states have (on average 1.1623188405797102) internal successors, (401), 351 states have internal predecessors, (401), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-09 02:27:23,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 439 transitions. [2025-03-09 02:27:23,321 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 439 transitions. Word has length 67 [2025-03-09 02:27:23,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:23,322 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 439 transitions. [2025-03-09 02:27:23,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-09 02:27:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 439 transitions. [2025-03-09 02:27:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-09 02:27:23,323 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:23,323 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, 1] [2025-03-09 02:27:23,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:23,524 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 [2025-03-09 02:27:23,524 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:23,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:23,524 INFO L85 PathProgramCache]: Analyzing trace with hash -730864820, now seen corresponding path program 1 times [2025-03-09 02:27:23,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:23,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196690661] [2025-03-09 02:27:23,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:23,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:23,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 02:27:23,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 02:27:23,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:23,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:27:23,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:23,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196690661] [2025-03-09 02:27:23,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196690661] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:23,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612126357] [2025-03-09 02:27:23,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:23,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:23,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:23,617 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) [2025-03-09 02:27:23,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 02:27:23,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 02:27:23,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 02:27:23,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:23,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:23,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:27:23,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:27:23,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 24 proven. 47 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:27:23,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612126357] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:23,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:23,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-09 02:27:23,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297982661] [2025-03-09 02:27:23,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:23,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:27:23,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:23,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:27:23,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:27:23,800 INFO L87 Difference]: Start difference. First operand 373 states and 439 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2025-03-09 02:27:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:23,862 INFO L93 Difference]: Finished difference Result 512 states and 592 transitions. [2025-03-09 02:27:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:27:23,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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 90 [2025-03-09 02:27:23,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:23,864 INFO L225 Difference]: With dead ends: 512 [2025-03-09 02:27:23,864 INFO L226 Difference]: Without dead ends: 344 [2025-03-09 02:27:23,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:27:23,865 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 17 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:23,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 134 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:27:23,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-03-09 02:27:23,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 341. [2025-03-09 02:27:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 315 states have (on average 1.1206349206349207) internal successors, (353), 321 states have internal predecessors, (353), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-09 02:27:23,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 387 transitions. [2025-03-09 02:27:23,879 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 387 transitions. Word has length 90 [2025-03-09 02:27:23,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:23,879 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 387 transitions. [2025-03-09 02:27:23,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2025-03-09 02:27:23,880 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 387 transitions. [2025-03-09 02:27:23,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-09 02:27:23,880 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:23,881 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, 1] [2025-03-09 02:27:23,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:24,081 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 [2025-03-09 02:27:24,081 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:24,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash -846990835, now seen corresponding path program 2 times [2025-03-09 02:27:24,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:24,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132299449] [2025-03-09 02:27:24,082 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:24,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:24,086 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 90 statements into 2 equivalence classes. [2025-03-09 02:27:24,093 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 02:27:24,093 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:24,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 14 proven. 27 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-09 02:27:24,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:24,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132299449] [2025-03-09 02:27:24,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132299449] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:24,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499495535] [2025-03-09 02:27:24,304 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:24,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:24,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:24,306 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) [2025-03-09 02:27:24,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 02:27:24,329 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 90 statements into 2 equivalence classes. [2025-03-09 02:27:24,344 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 02:27:24,344 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:24,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:24,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:27:24,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:24,482 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-09 02:27:24,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-09 02:27:24,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499495535] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:24,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:24,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2025-03-09 02:27:24,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086360017] [2025-03-09 02:27:24,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:24,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-09 02:27:24,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:24,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-09 02:27:24,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-09 02:27:24,661 INFO L87 Difference]: Start difference. First operand 341 states and 387 transitions. Second operand has 23 states, 22 states have (on average 7.954545454545454) internal successors, (175), 22 states have internal predecessors, (175), 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) [2025-03-09 02:27:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:25,931 INFO L93 Difference]: Finished difference Result 759 states and 878 transitions. [2025-03-09 02:27:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-09 02:27:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 7.954545454545454) internal successors, (175), 22 states have internal predecessors, (175), 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 90 [2025-03-09 02:27:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:25,934 INFO L225 Difference]: With dead ends: 759 [2025-03-09 02:27:25,934 INFO L226 Difference]: Without dead ends: 725 [2025-03-09 02:27:25,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1350, Invalid=4502, Unknown=0, NotChecked=0, Total=5852 [2025-03-09 02:27:25,937 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 505 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:25,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 295 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:27:25,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2025-03-09 02:27:25,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 335. [2025-03-09 02:27:25,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 311 states have (on average 1.0836012861736335) internal successors, (337), 315 states have internal predecessors, (337), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-09 02:27:25,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 371 transitions. [2025-03-09 02:27:25,956 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 371 transitions. Word has length 90 [2025-03-09 02:27:25,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:25,956 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 371 transitions. [2025-03-09 02:27:25,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 7.954545454545454) internal successors, (175), 22 states have internal predecessors, (175), 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) [2025-03-09 02:27:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 371 transitions. [2025-03-09 02:27:25,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-09 02:27:25,958 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:25,958 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:25,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:26,159 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 [2025-03-09 02:27:26,159 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:26,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:26,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1827248542, now seen corresponding path program 1 times [2025-03-09 02:27:26,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:26,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804742764] [2025-03-09 02:27:26,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:26,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:26,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-09 02:27:26,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-09 02:27:26,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:26,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-09 02:27:26,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:26,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804742764] [2025-03-09 02:27:26,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804742764] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:26,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255280961] [2025-03-09 02:27:26,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:26,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:26,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:26,211 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) [2025-03-09 02:27:26,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 02:27:26,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-09 02:27:26,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-09 02:27:26,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:26,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:26,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:27:26,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-09 02:27:26,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-03-09 02:27:26,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255280961] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:26,348 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:26,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-09 02:27:26,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564447815] [2025-03-09 02:27:26,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:26,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:27:26,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:26,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:27:26,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:27:26,349 INFO L87 Difference]: Start difference. First operand 335 states and 371 transitions. Second operand has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 7 states have internal predecessors, (116), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-09 02:27:26,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:26,442 INFO L93 Difference]: Finished difference Result 514 states and 581 transitions. [2025-03-09 02:27:26,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:27:26,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 7 states have internal predecessors, (116), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 100 [2025-03-09 02:27:26,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:26,445 INFO L225 Difference]: With dead ends: 514 [2025-03-09 02:27:26,445 INFO L226 Difference]: Without dead ends: 512 [2025-03-09 02:27:26,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:27:26,445 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 12 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:26,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 136 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:26,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2025-03-09 02:27:26,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2025-03-09 02:27:26,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 479 states have (on average 1.058455114822547) internal successors, (507), 482 states have internal predecessors, (507), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-09 02:27:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 561 transitions. [2025-03-09 02:27:26,468 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 561 transitions. Word has length 100 [2025-03-09 02:27:26,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:26,468 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 561 transitions. [2025-03-09 02:27:26,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 7 states have internal predecessors, (116), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-09 02:27:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 561 transitions. [2025-03-09 02:27:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-09 02:27:26,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:26,470 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, 1] [2025-03-09 02:27:26,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:26,671 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 [2025-03-09 02:27:26,671 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:26,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:26,672 INFO L85 PathProgramCache]: Analyzing trace with hash -360641376, now seen corresponding path program 1 times [2025-03-09 02:27:26,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:26,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104624955] [2025-03-09 02:27:26,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:26,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:26,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-09 02:27:26,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-09 02:27:26,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:26,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-09 02:27:26,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104624955] [2025-03-09 02:27:26,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104624955] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492611490] [2025-03-09 02:27:26,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:26,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:26,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:26,745 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) [2025-03-09 02:27:26,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-09 02:27:26,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-09 02:27:26,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-09 02:27:26,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:26,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:26,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:27:26,785 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-09 02:27:26,854 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-09 02:27:26,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492611490] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:26,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:26,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-09 02:27:26,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037135587] [2025-03-09 02:27:26,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:26,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:27:26,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:26,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:27:26,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:26,960 INFO L87 Difference]: Start difference. First operand 512 states and 561 transitions. Second operand has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 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) [2025-03-09 02:27:27,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:27,110 INFO L93 Difference]: Finished difference Result 1219 states and 1361 transitions. [2025-03-09 02:27:27,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:27:27,111 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 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 103 [2025-03-09 02:27:27,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:27,116 INFO L225 Difference]: With dead ends: 1219 [2025-03-09 02:27:27,116 INFO L226 Difference]: Without dead ends: 1218 [2025-03-09 02:27:27,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:27,120 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 112 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:27,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 213 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:27,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2025-03-09 02:27:27,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1198. [2025-03-09 02:27:27,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 1129 states have (on average 1.070859167404783) internal successors, (1209), 1132 states have internal predecessors, (1209), 63 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-03-09 02:27:27,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1335 transitions. [2025-03-09 02:27:27,176 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1335 transitions. Word has length 103 [2025-03-09 02:27:27,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:27,177 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1335 transitions. [2025-03-09 02:27:27,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 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) [2025-03-09 02:27:27,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1335 transitions. [2025-03-09 02:27:27,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-09 02:27:27,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:27,182 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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] [2025-03-09 02:27:27,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-09 02:27:27,386 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 [2025-03-09 02:27:27,386 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:27,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:27,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1516179113, now seen corresponding path program 1 times [2025-03-09 02:27:27,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:27,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156673068] [2025-03-09 02:27:27,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:27,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:27,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-09 02:27:27,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-09 02:27:27,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:27,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 86 proven. 30 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-09 02:27:27,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:27,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156673068] [2025-03-09 02:27:27,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156673068] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:27,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703624436] [2025-03-09 02:27:27,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:27,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:27,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:27,481 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) [2025-03-09 02:27:27,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 02:27:27,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-09 02:27:27,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-09 02:27:27,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:27,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:27,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:27:27,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:27,618 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 98 proven. 30 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-09 02:27:27,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 86 proven. 30 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-09 02:27:27,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703624436] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:27,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:27,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-03-09 02:27:27,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71606140] [2025-03-09 02:27:27,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:27,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:27:27,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:27,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:27:27,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:27,709 INFO L87 Difference]: Start difference. First operand 1198 states and 1335 transitions. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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) [2025-03-09 02:27:27,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:27,861 INFO L93 Difference]: Finished difference Result 1279 states and 1421 transitions. [2025-03-09 02:27:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:27:27,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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 111 [2025-03-09 02:27:27,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:27,865 INFO L225 Difference]: With dead ends: 1279 [2025-03-09 02:27:27,865 INFO L226 Difference]: Without dead ends: 1125 [2025-03-09 02:27:27,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:27:27,866 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 39 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:27,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 217 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:27,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2025-03-09 02:27:27,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1121. [2025-03-09 02:27:27,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1055 states have (on average 1.0597156398104266) internal successors, (1118), 1058 states have internal predecessors, (1118), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2025-03-09 02:27:27,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1238 transitions. [2025-03-09 02:27:27,920 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1238 transitions. Word has length 111 [2025-03-09 02:27:27,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:27,920 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1238 transitions. [2025-03-09 02:27:27,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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) [2025-03-09 02:27:27,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1238 transitions. [2025-03-09 02:27:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-09 02:27:27,922 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:27,922 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:27,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:28,127 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 [2025-03-09 02:27:28,127 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:28,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:28,127 INFO L85 PathProgramCache]: Analyzing trace with hash 412288807, now seen corresponding path program 1 times [2025-03-09 02:27:28,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:28,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802088948] [2025-03-09 02:27:28,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:28,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:28,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-09 02:27:28,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-09 02:27:28,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:28,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:28,210 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-09 02:27:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802088948] [2025-03-09 02:27:28,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802088948] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615424816] [2025-03-09 02:27:28,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:27:28,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:28,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:28,213 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) [2025-03-09 02:27:28,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 02:27:28,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-09 02:27:28,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-09 02:27:28,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:28,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:28,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:27:28,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-09 02:27:28,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 170 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-09 02:27:28,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615424816] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:28,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:28,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2025-03-09 02:27:28,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281048416] [2025-03-09 02:27:28,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:28,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:27:28,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:28,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:27:28,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:27:28,476 INFO L87 Difference]: Start difference. First operand 1121 states and 1238 transitions. Second operand has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 13 states have internal predecessors, (197), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-09 02:27:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:28,668 INFO L93 Difference]: Finished difference Result 2262 states and 2558 transitions. [2025-03-09 02:27:28,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:27:28,669 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 13 states have internal predecessors, (197), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 123 [2025-03-09 02:27:28,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:28,676 INFO L225 Difference]: With dead ends: 2262 [2025-03-09 02:27:28,676 INFO L226 Difference]: Without dead ends: 2261 [2025-03-09 02:27:28,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:27:28,677 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 14 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:28,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 162 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2261 states. [2025-03-09 02:27:28,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2261 to 2261. [2025-03-09 02:27:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 2135 states have (on average 1.0576112412177987) internal successors, (2258), 2138 states have internal predecessors, (2258), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2025-03-09 02:27:28,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 2498 transitions. [2025-03-09 02:27:28,771 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 2498 transitions. Word has length 123 [2025-03-09 02:27:28,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:28,772 INFO L471 AbstractCegarLoop]: Abstraction has 2261 states and 2498 transitions. [2025-03-09 02:27:28,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.416666666666668) internal successors, (197), 13 states have internal predecessors, (197), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-09 02:27:28,772 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 2498 transitions. [2025-03-09 02:27:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-09 02:27:28,773 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:28,773 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 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] [2025-03-09 02:27:28,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-09 02:27:28,973 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 [2025-03-09 02:27:28,974 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:28,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:28,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1833130828, now seen corresponding path program 2 times [2025-03-09 02:27:28,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:28,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637730812] [2025-03-09 02:27:28,974 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:28,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:28,979 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-09 02:27:28,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-09 02:27:28,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:28,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 68 proven. 128 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-09 02:27:29,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:29,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637730812] [2025-03-09 02:27:29,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637730812] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:29,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535563994] [2025-03-09 02:27:29,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:29,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:29,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:29,070 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) [2025-03-09 02:27:29,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-09 02:27:29,090 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 134 statements into 2 equivalence classes. [2025-03-09 02:27:29,110 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 134 of 134 statements. [2025-03-09 02:27:29,111 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:29,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:29,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:27:29,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-09 02:27:29,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-09 02:27:29,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535563994] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:29,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:29,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2025-03-09 02:27:29,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687028055] [2025-03-09 02:27:29,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:29,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:27:29,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:29,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:27:29,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:27:29,425 INFO L87 Difference]: Start difference. First operand 2261 states and 2498 transitions. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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) [2025-03-09 02:27:29,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:29,711 INFO L93 Difference]: Finished difference Result 5191 states and 5743 transitions. [2025-03-09 02:27:29,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:27:29,712 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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 134 [2025-03-09 02:27:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:29,723 INFO L225 Difference]: With dead ends: 5191 [2025-03-09 02:27:29,723 INFO L226 Difference]: Without dead ends: 3723 [2025-03-09 02:27:29,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:27:29,728 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 51 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:29,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 321 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:27:29,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3723 states. [2025-03-09 02:27:29,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3723 to 2529. [2025-03-09 02:27:29,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2389 states have (on average 1.0565089995814148) internal successors, (2524), 2392 states have internal predecessors, (2524), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2025-03-09 02:27:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 2792 transitions. [2025-03-09 02:27:29,846 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 2792 transitions. Word has length 134 [2025-03-09 02:27:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:29,846 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 2792 transitions. [2025-03-09 02:27:29,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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) [2025-03-09 02:27:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 2792 transitions. [2025-03-09 02:27:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-09 02:27:29,849 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:29,849 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, 1] [2025-03-09 02:27:29,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-09 02:27:30,049 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 [2025-03-09 02:27:30,051 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)] === [2025-03-09 02:27:30,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash 559019480, now seen corresponding path program 3 times [2025-03-09 02:27:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:30,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913735253] [2025-03-09 02:27:30,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:27:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:30,057 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-09 02:27:30,077 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 157 of 157 statements. [2025-03-09 02:27:30,078 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-09 02:27:30,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:30,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [902021824] [2025-03-09 02:27:30,079 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:27:30,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:30,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:30,081 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) [2025-03-09 02:27:30,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-09 02:27:30,107 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-09 02:27:30,121 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 65 of 157 statements. [2025-03-09 02:27:30,121 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-09 02:27:30,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:30,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 02:27:30,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2025-03-09 02:27:30,171 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:30,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:30,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913735253] [2025-03-09 02:27:30,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:30,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902021824] [2025-03-09 02:27:30,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902021824] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:30,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:30,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-09 02:27:30,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577735247] [2025-03-09 02:27:30,332 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:30,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:27:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:30,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:27:30,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:27:30,334 INFO L87 Difference]: Start difference. First operand 2529 states and 2792 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-03-09 02:27:30,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:30,446 INFO L93 Difference]: Finished difference Result 2534 states and 2794 transitions. [2025-03-09 02:27:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:27:30,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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 157 [2025-03-09 02:27:30,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:30,457 INFO L225 Difference]: With dead ends: 2534 [2025-03-09 02:27:30,458 INFO L226 Difference]: Without dead ends: 2530 [2025-03-09 02:27:30,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:27:30,460 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 19 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:30,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 119 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:27:30,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2025-03-09 02:27:30,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2529. [2025-03-09 02:27:30,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2389 states have (on average 1.0539974884889074) internal successors, (2518), 2392 states have internal predecessors, (2518), 134 states have call successors, (134), 2 states have call predecessors, (134), 2 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134) [2025-03-09 02:27:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 2786 transitions. [2025-03-09 02:27:30,563 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 2786 transitions. Word has length 157 [2025-03-09 02:27:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:30,563 INFO L471 AbstractCegarLoop]: Abstraction has 2529 states and 2786 transitions. [2025-03-09 02:27:30,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 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) [2025-03-09 02:27:30,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 2786 transitions. [2025-03-09 02:27:30,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-09 02:27:30,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:30,565 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, 1] [2025-03-09 02:27:30,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:30,769 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 [2025-03-09 02:27:30,769 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)] === [2025-03-09 02:27:30,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:30,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1123291509, now seen corresponding path program 3 times [2025-03-09 02:27:30,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:30,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996481977] [2025-03-09 02:27:30,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:27:30,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:30,774 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-09 02:27:30,793 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 157 of 157 statements. [2025-03-09 02:27:30,793 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-09 02:27:30,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:30,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221403795] [2025-03-09 02:27:30,794 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:27:30,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:30,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:30,796 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) [2025-03-09 02:27:30,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-09 02:27:30,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 157 statements into 7 equivalence classes. [2025-03-09 02:27:30,856 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 134 of 157 statements. [2025-03-09 02:27:30,857 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-09 02:27:30,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:30,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-09 02:27:30,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:31,059 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-09 02:27:31,059 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-09 02:27:31,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996481977] [2025-03-09 02:27:31,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:31,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221403795] [2025-03-09 02:27:31,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221403795] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:31,316 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:27:31,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-09 02:27:31,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812966626] [2025-03-09 02:27:31,316 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:31,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 02:27:31,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:31,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 02:27:31,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:27:31,317 INFO L87 Difference]: Start difference. First operand 2529 states and 2786 transitions. Second operand has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-09 02:27:32,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:32,050 INFO L93 Difference]: Finished difference Result 3189 states and 3506 transitions. [2025-03-09 02:27:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-09 02:27:32,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 157 [2025-03-09 02:27:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:32,057 INFO L225 Difference]: With dead ends: 3189 [2025-03-09 02:27:32,057 INFO L226 Difference]: Without dead ends: 3177 [2025-03-09 02:27:32,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2025-03-09 02:27:32,058 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 315 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:32,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 503 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:27:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2025-03-09 02:27:32,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2927. [2025-03-09 02:27:32,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2767 states have (on average 1.0495121069750633) internal successors, (2904), 2770 states have internal predecessors, (2904), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2025-03-09 02:27:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 3212 transitions. [2025-03-09 02:27:32,160 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 3212 transitions. Word has length 157 [2025-03-09 02:27:32,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:32,160 INFO L471 AbstractCegarLoop]: Abstraction has 2927 states and 3212 transitions. [2025-03-09 02:27:32,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.307692307692308) internal successors, (186), 14 states have internal predecessors, (186), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-09 02:27:32,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 3212 transitions. [2025-03-09 02:27:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-03-09 02:27:32,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:32,162 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, 1] [2025-03-09 02:27:32,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-09 02:27:32,362 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 [2025-03-09 02:27:32,363 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)] === [2025-03-09 02:27:32,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash 168176088, now seen corresponding path program 4 times [2025-03-09 02:27:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:32,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145262155] [2025-03-09 02:27:32,363 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:27:32,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:32,370 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 157 statements into 2 equivalence classes. [2025-03-09 02:27:32,386 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 157 of 157 statements. [2025-03-09 02:27:32,387 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 02:27:32,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:32,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854386886] [2025-03-09 02:27:32,388 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:27:32,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:32,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:32,390 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) [2025-03-09 02:27:32,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-09 02:27:32,414 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 157 statements into 2 equivalence classes. [2025-03-09 02:27:32,443 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 157 of 157 statements. [2025-03-09 02:27:32,443 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 02:27:32,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:32,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 35 conjuncts are in the unsatisfiable core [2025-03-09 02:27:32,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:32,872 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 9 proven. 307 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-09 02:27:32,872 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:33,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:33,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145262155] [2025-03-09 02:27:33,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:33,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854386886] [2025-03-09 02:27:33,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854386886] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:33,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:33,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-09 02:27:33,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788225913] [2025-03-09 02:27:33,025 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:33,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 02:27:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:33,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 02:27:33,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:27:33,026 INFO L87 Difference]: Start difference. First operand 2927 states and 3212 transitions. Second operand has 15 states, 14 states have (on average 9.0) internal successors, (126), 15 states have internal predecessors, (126), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-09 02:27:33,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:33,481 INFO L93 Difference]: Finished difference Result 3353 states and 3676 transitions. [2025-03-09 02:27:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 02:27:33,482 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 15 states have internal predecessors, (126), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 157 [2025-03-09 02:27:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:33,490 INFO L225 Difference]: With dead ends: 3353 [2025-03-09 02:27:33,490 INFO L226 Difference]: Without dead ends: 3349 [2025-03-09 02:27:33,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2025-03-09 02:27:33,491 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:33,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 508 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:27:33,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2025-03-09 02:27:33,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 2965. [2025-03-09 02:27:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2803 states have (on average 1.048876204067071) internal successors, (2940), 2806 states have internal predecessors, (2940), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-09 02:27:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 3252 transitions. [2025-03-09 02:27:33,610 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 3252 transitions. Word has length 157 [2025-03-09 02:27:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:33,610 INFO L471 AbstractCegarLoop]: Abstraction has 2965 states and 3252 transitions. [2025-03-09 02:27:33,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.0) internal successors, (126), 15 states have internal predecessors, (126), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-09 02:27:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 3252 transitions. [2025-03-09 02:27:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-03-09 02:27:33,613 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:33,613 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:33,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-09 02:27:33,814 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 [2025-03-09 02:27:33,814 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:33,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:33,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1464666926, now seen corresponding path program 5 times [2025-03-09 02:27:33,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:33,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898105772] [2025-03-09 02:27:33,814 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 02:27:33,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:33,821 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 180 statements into 8 equivalence classes. [2025-03-09 02:27:33,841 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 180 of 180 statements. [2025-03-09 02:27:33,841 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-09 02:27:33,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 165 proven. 236 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-09 02:27:33,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:33,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898105772] [2025-03-09 02:27:33,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898105772] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:33,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016907840] [2025-03-09 02:27:33,958 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 02:27:33,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:33,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:33,960 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) [2025-03-09 02:27:33,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-09 02:27:33,985 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 180 statements into 8 equivalence classes. [2025-03-09 02:27:34,016 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 180 of 180 statements. [2025-03-09 02:27:34,016 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-09 02:27:34,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:34,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:27:34,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:34,220 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-09 02:27:34,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:34,381 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-09 02:27:34,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016907840] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:34,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:34,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2025-03-09 02:27:34,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464409076] [2025-03-09 02:27:34,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:34,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 02:27:34,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:34,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 02:27:34,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:27:34,383 INFO L87 Difference]: Start difference. First operand 2965 states and 3252 transitions. Second operand has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-09 02:27:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:34,705 INFO L93 Difference]: Finished difference Result 6133 states and 6739 transitions. [2025-03-09 02:27:34,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:27:34,707 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 180 [2025-03-09 02:27:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:34,717 INFO L225 Difference]: With dead ends: 6133 [2025-03-09 02:27:34,717 INFO L226 Difference]: Without dead ends: 4645 [2025-03-09 02:27:34,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 349 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:27:34,724 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 45 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:34,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 352 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:34,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4645 states. [2025-03-09 02:27:34,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4645 to 3433. [2025-03-09 02:27:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3433 states, 3247 states have (on average 1.0452725592854943) internal successors, (3394), 3250 states have internal predecessors, (3394), 180 states have call successors, (180), 2 states have call predecessors, (180), 2 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2025-03-09 02:27:34,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3433 states to 3433 states and 3754 transitions. [2025-03-09 02:27:34,868 INFO L78 Accepts]: Start accepts. Automaton has 3433 states and 3754 transitions. Word has length 180 [2025-03-09 02:27:34,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:34,868 INFO L471 AbstractCegarLoop]: Abstraction has 3433 states and 3754 transitions. [2025-03-09 02:27:34,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-09 02:27:34,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3433 states and 3754 transitions. [2025-03-09 02:27:34,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-03-09 02:27:34,872 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:34,872 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, 1] [2025-03-09 02:27:34,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-09 02:27:35,072 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 [2025-03-09 02:27:35,073 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)] === [2025-03-09 02:27:35,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1877457846, now seen corresponding path program 6 times [2025-03-09 02:27:35,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:35,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143560702] [2025-03-09 02:27:35,073 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 02:27:35,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:35,080 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 203 statements into 9 equivalence classes. [2025-03-09 02:27:35,101 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 203 of 203 statements. [2025-03-09 02:27:35,103 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-09 02:27:35,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:27:35,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722371900] [2025-03-09 02:27:35,104 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 02:27:35,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:35,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:35,105 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) [2025-03-09 02:27:35,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-09 02:27:35,135 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 203 statements into 9 equivalence classes. [2025-03-09 02:27:35,168 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 180 of 203 statements. [2025-03-09 02:27:35,169 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-03-09 02:27:35,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:35,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-09 02:27:35,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2025-03-09 02:27:35,508 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:35,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143560702] [2025-03-09 02:27:35,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:27:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722371900] [2025-03-09 02:27:35,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722371900] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:35,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:27:35,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:27:35,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020411982] [2025-03-09 02:27:35,616 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:35,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:27:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:35,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:27:35,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:35,617 INFO L87 Difference]: Start difference. First operand 3433 states and 3754 transitions. Second operand has 9 states, 8 states have (on average 13.75) internal successors, (110), 9 states have internal predecessors, (110), 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) [2025-03-09 02:27:35,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:35,903 INFO L93 Difference]: Finished difference Result 3859 states and 4216 transitions. [2025-03-09 02:27:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:27:35,903 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 9 states have internal predecessors, (110), 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 203 [2025-03-09 02:27:35,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:35,913 INFO L225 Difference]: With dead ends: 3859 [2025-03-09 02:27:35,914 INFO L226 Difference]: Without dead ends: 3855 [2025-03-09 02:27:35,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:27:35,915 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 22 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:35,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 342 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:27:35,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3855 states. [2025-03-09 02:27:36,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3855 to 3490. [2025-03-09 02:27:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 3301 states have (on average 1.0445319600121175) internal successors, (3448), 3304 states have internal predecessors, (3448), 183 states have call successors, (183), 2 states have call predecessors, (183), 2 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2025-03-09 02:27:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 3814 transitions. [2025-03-09 02:27:36,051 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 3814 transitions. Word has length 203 [2025-03-09 02:27:36,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:36,051 INFO L471 AbstractCegarLoop]: Abstraction has 3490 states and 3814 transitions. [2025-03-09 02:27:36,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.75) internal successors, (110), 9 states have internal predecessors, (110), 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) [2025-03-09 02:27:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 3814 transitions. [2025-03-09 02:27:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2025-03-09 02:27:36,056 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:36,056 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, 1] [2025-03-09 02:27:36,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:36,260 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 [2025-03-09 02:27:36,262 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:36,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:36,262 INFO L85 PathProgramCache]: Analyzing trace with hash -852023435, now seen corresponding path program 2 times [2025-03-09 02:27:36,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:36,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168641993] [2025-03-09 02:27:36,262 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:36,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:36,268 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 218 statements into 2 equivalence classes. [2025-03-09 02:27:36,278 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 218 of 218 statements. [2025-03-09 02:27:36,278 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:36,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:36,427 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-09 02:27:36,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168641993] [2025-03-09 02:27:36,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168641993] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:36,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265023934] [2025-03-09 02:27:36,427 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:36,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:36,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:36,429 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) [2025-03-09 02:27:36,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-09 02:27:36,456 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 218 statements into 2 equivalence classes. [2025-03-09 02:27:36,487 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 218 of 218 statements. [2025-03-09 02:27:36,487 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:36,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:36,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:27:36,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-09 02:27:36,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-09 02:27:36,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265023934] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:36,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:36,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-09 02:27:36,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804908741] [2025-03-09 02:27:36,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:36,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-09 02:27:36,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:36,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-09 02:27:36,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-09 02:27:36,910 INFO L87 Difference]: Start difference. First operand 3490 states and 3814 transitions. Second operand has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 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) [2025-03-09 02:27:37,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:37,305 INFO L93 Difference]: Finished difference Result 6761 states and 7436 transitions. [2025-03-09 02:27:37,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-09 02:27:37,306 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 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 218 [2025-03-09 02:27:37,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:37,319 INFO L225 Difference]: With dead ends: 6761 [2025-03-09 02:27:37,319 INFO L226 Difference]: Without dead ends: 6760 [2025-03-09 02:27:37,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-09 02:27:37,321 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 274 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:37,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 441 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:27:37,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6760 states. [2025-03-09 02:27:37,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6760 to 6710. [2025-03-09 02:27:37,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6710 states, 6351 states have (on average 1.0483388442764918) internal successors, (6658), 6354 states have internal predecessors, (6658), 353 states have call successors, (353), 2 states have call predecessors, (353), 2 states have return successors, (353), 353 states have call predecessors, (353), 353 states have call successors, (353) [2025-03-09 02:27:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6710 states to 6710 states and 7364 transitions. [2025-03-09 02:27:37,575 INFO L78 Accepts]: Start accepts. Automaton has 6710 states and 7364 transitions. Word has length 218 [2025-03-09 02:27:37,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:37,576 INFO L471 AbstractCegarLoop]: Abstraction has 6710 states and 7364 transitions. [2025-03-09 02:27:37,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 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) [2025-03-09 02:27:37,576 INFO L276 IsEmpty]: Start isEmpty. Operand 6710 states and 7364 transitions. [2025-03-09 02:27:37,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-09 02:27:37,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:37,579 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:37,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:37,783 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 [2025-03-09 02:27:37,783 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)] === [2025-03-09 02:27:37,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1063421233, now seen corresponding path program 7 times [2025-03-09 02:27:37,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:37,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202127256] [2025-03-09 02:27:37,784 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 02:27:37,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:37,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-09 02:27:37,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-09 02:27:37,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:37,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 236 proven. 413 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-09 02:27:37,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202127256] [2025-03-09 02:27:37,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202127256] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:37,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499160059] [2025-03-09 02:27:37,961 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-09 02:27:37,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:37,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:37,964 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) [2025-03-09 02:27:37,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-09 02:27:37,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 226 statements into 1 equivalence classes. [2025-03-09 02:27:38,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 226 of 226 statements. [2025-03-09 02:27:38,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:27:38,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:38,020 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:27:38,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:38,287 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 404 proven. 245 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-09 02:27:38,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 236 proven. 413 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2025-03-09 02:27:38,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499160059] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:38,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:38,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-03-09 02:27:38,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148527871] [2025-03-09 02:27:38,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:38,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-09 02:27:38,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:38,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-09 02:27:38,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2025-03-09 02:27:38,489 INFO L87 Difference]: Start difference. First operand 6710 states and 7364 transitions. Second operand has 22 states, 22 states have (on average 17.318181818181817) internal successors, (381), 22 states have internal predecessors, (381), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-09 02:27:39,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:39,170 INFO L93 Difference]: Finished difference Result 17665 states and 19427 transitions. [2025-03-09 02:27:39,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-09 02:27:39,171 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 17.318181818181817) internal successors, (381), 22 states have internal predecessors, (381), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 226 [2025-03-09 02:27:39,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:39,197 INFO L225 Difference]: With dead ends: 17665 [2025-03-09 02:27:39,197 INFO L226 Difference]: Without dead ends: 12851 [2025-03-09 02:27:39,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2025-03-09 02:27:39,203 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 34 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:39,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 643 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:27:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12851 states. [2025-03-09 02:27:39,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12851 to 7577. [2025-03-09 02:27:39,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7577 states, 7171 states have (on average 1.046437038070004) internal successors, (7504), 7174 states have internal predecessors, (7504), 400 states have call successors, (400), 2 states have call predecessors, (400), 2 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2025-03-09 02:27:39,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7577 states to 7577 states and 8304 transitions. [2025-03-09 02:27:39,561 INFO L78 Accepts]: Start accepts. Automaton has 7577 states and 8304 transitions. Word has length 226 [2025-03-09 02:27:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:39,562 INFO L471 AbstractCegarLoop]: Abstraction has 7577 states and 8304 transitions. [2025-03-09 02:27:39,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 17.318181818181817) internal successors, (381), 22 states have internal predecessors, (381), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-09 02:27:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 7577 states and 8304 transitions. [2025-03-09 02:27:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2025-03-09 02:27:39,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:39,565 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, 1] [2025-03-09 02:27:39,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-09 02:27:39,765 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 [2025-03-09 02:27:39,766 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:27:39,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:39,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1163245196, now seen corresponding path program 8 times [2025-03-09 02:27:39,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:39,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884251246] [2025-03-09 02:27:39,766 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:39,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:39,772 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 226 statements into 2 equivalence classes. [2025-03-09 02:27:39,779 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 226 of 226 statements. [2025-03-09 02:27:39,779 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:39,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 183 proven. 499 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-09 02:27:39,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:39,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884251246] [2025-03-09 02:27:39,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884251246] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:39,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266132491] [2025-03-09 02:27:39,933 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:27:39,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:39,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:39,935 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) [2025-03-09 02:27:39,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-09 02:27:39,962 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 226 statements into 2 equivalence classes. [2025-03-09 02:27:39,991 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 226 of 226 statements. [2025-03-09 02:27:39,992 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:27:39,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:39,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 02:27:39,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:40,251 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-09 02:27:40,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-09 02:27:40,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266132491] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:27:40,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:27:40,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-09 02:27:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496195860] [2025-03-09 02:27:40,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:40,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 02:27:40,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:40,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 02:27:40,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:27:40,463 INFO L87 Difference]: Start difference. First operand 7577 states and 8304 transitions. Second operand has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 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) [2025-03-09 02:27:40,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:40,912 INFO L93 Difference]: Finished difference Result 9007 states and 9851 transitions. [2025-03-09 02:27:40,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:27:40,913 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 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 226 [2025-03-09 02:27:40,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:40,926 INFO L225 Difference]: With dead ends: 9007 [2025-03-09 02:27:40,926 INFO L226 Difference]: Without dead ends: 7571 [2025-03-09 02:27:40,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 437 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2025-03-09 02:27:40,930 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 51 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:40,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 567 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:27:40,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states. [2025-03-09 02:27:41,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 7567. [2025-03-09 02:27:41,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7567 states, 7161 states have (on average 1.0437089791928502) internal successors, (7474), 7164 states have internal predecessors, (7474), 400 states have call successors, (400), 2 states have call predecessors, (400), 2 states have return successors, (400), 400 states have call predecessors, (400), 400 states have call successors, (400) [2025-03-09 02:27:41,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7567 states to 7567 states and 8274 transitions. [2025-03-09 02:27:41,207 INFO L78 Accepts]: Start accepts. Automaton has 7567 states and 8274 transitions. Word has length 226 [2025-03-09 02:27:41,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:41,207 INFO L471 AbstractCegarLoop]: Abstraction has 7567 states and 8274 transitions. [2025-03-09 02:27:41,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 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) [2025-03-09 02:27:41,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7567 states and 8274 transitions. [2025-03-09 02:27:41,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2025-03-09 02:27:41,210 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:27:41,210 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 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] [2025-03-09 02:27:41,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:41,411 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 [2025-03-09 02:27:41,411 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)] === [2025-03-09 02:27:41,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:27:41,411 INFO L85 PathProgramCache]: Analyzing trace with hash -874436968, now seen corresponding path program 9 times [2025-03-09 02:27:41,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:27:41,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659514423] [2025-03-09 02:27:41,412 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:27:41,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:27:41,418 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 249 statements into 11 equivalence classes. [2025-03-09 02:27:41,437 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 249 of 249 statements. [2025-03-09 02:27:41,438 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 02:27:41,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 787 proven. 64 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2025-03-09 02:27:42,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:27:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659514423] [2025-03-09 02:27:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659514423] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639772250] [2025-03-09 02:27:42,238 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:27:42,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:27:42,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:27:42,241 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) [2025-03-09 02:27:42,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-09 02:27:42,274 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 249 statements into 11 equivalence classes. [2025-03-09 02:27:42,321 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 157 of 249 statements. [2025-03-09 02:27:42,323 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-09 02:27:42,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:27:42,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:27:42,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:27:42,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 677 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2025-03-09 02:27:42,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:27:43,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639772250] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:27:43,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:27:43,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 9] total 39 [2025-03-09 02:27:43,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9100343] [2025-03-09 02:27:43,011 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:27:43,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2025-03-09 02:27:43,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:27:43,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2025-03-09 02:27:43,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1469, Unknown=0, NotChecked=0, Total=1722 [2025-03-09 02:27:43,013 INFO L87 Difference]: Start difference. First operand 7567 states and 8274 transitions. Second operand has 39 states, 39 states have (on average 8.128205128205128) internal successors, (317), 39 states have internal predecessors, (317), 18 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2025-03-09 02:27:48,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:27:48,411 INFO L93 Difference]: Finished difference Result 8408 states and 9146 transitions. [2025-03-09 02:27:48,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2025-03-09 02:27:48,412 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 8.128205128205128) internal successors, (317), 39 states have internal predecessors, (317), 18 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) Word has length 249 [2025-03-09 02:27:48,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:27:48,414 INFO L225 Difference]: With dead ends: 8408 [2025-03-09 02:27:48,414 INFO L226 Difference]: Without dead ends: 0 [2025-03-09 02:27:48,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 472 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17329 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4977, Invalid=43203, Unknown=0, NotChecked=0, Total=48180 [2025-03-09 02:27:48,430 INFO L435 NwaCegarLoop]: 320 mSDtfsCounter, 285 mSDsluCounter, 4559 mSDsCounter, 0 mSdLazyCounter, 12347 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 12368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:27:48,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 4879 Invalid, 12368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12347 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-03-09 02:27:48,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-09 02:27:48,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-09 02:27:48,431 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) [2025-03-09 02:27:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-09 02:27:48,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2025-03-09 02:27:48,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:27:48,432 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 02:27:48,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 8.128205128205128) internal successors, (317), 39 states have internal predecessors, (317), 18 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2025-03-09 02:27:48,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-09 02:27:48,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2025-03-09 02:27:48,435 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2025-03-09 02:27:48,436 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2025-03-09 02:27:48,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2025-03-09 02:27:48,640 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 [2025-03-09 02:27:48,642 INFO L422 BasicCegarLoop]: Path program histogram: [9, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:27:48,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-09 02:28:08,038 WARN L286 SmtUtils]: Spent 19.39s on a formula simplification. DAG size of input: 808 DAG size of output: 766 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2025-03-09 02:28:37,644 WARN L286 SmtUtils]: Spent 29.60s on a formula simplification. DAG size of input: 928 DAG size of output: 931 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)