./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench/hard-ll.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/hard-ll.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 8c31bebbbf1ab8c6e57b91fec88eba145fb9c1b52fce25f48cae26620a3d8ba6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:01:50,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:01:51,040 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:01:51,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:01:51,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:01:51,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:01:51,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:01:51,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:01:51,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:01:51,065 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:01:51,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:01:51,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:01:51,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:01:51,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:01:51,066 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:01:51,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:01:51,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:01:51,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:01:51,067 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 -> 8c31bebbbf1ab8c6e57b91fec88eba145fb9c1b52fce25f48cae26620a3d8ba6 [2025-03-09 02:01:51,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:01:51,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:01:51,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:01:51,306 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:01:51,306 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:01:51,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/hard-ll.c [2025-03-09 02:01:52,476 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f607631/8a51f7fa1f1d4a2281a9b5f7c2e2901c/FLAG280f4f8a1 [2025-03-09 02:01:52,674 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:01:52,675 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/hard-ll.c [2025-03-09 02:01:52,681 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f607631/8a51f7fa1f1d4a2281a9b5f7c2e2901c/FLAG280f4f8a1 [2025-03-09 02:01:53,043 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f607631/8a51f7fa1f1d4a2281a9b5f7c2e2901c [2025-03-09 02:01:53,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:01:53,046 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:01:53,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:01:53,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:01:53,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:01:53,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d637794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53, skipping insertion in model container [2025-03-09 02:01:53,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:01:53,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:01:53,173 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:01:53,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:01:53,195 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:01:53,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53 WrapperNode [2025-03-09 02:01:53,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:01:53,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:01:53,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:01:53,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:01:53,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,225 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2025-03-09 02:01:53,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:01:53,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:01:53,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:01:53,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:01:53,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,237 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,244 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 02:01:53,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,247 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:01:53,252 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:01:53,253 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:01:53,254 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:01:53,255 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (1/1) ... [2025-03-09 02:01:53,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:01:53,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:53,278 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 02:01:53,280 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 02:01:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:01:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:01:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:01:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:01:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:01:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:01:53,331 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:01:53,332 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:01:53,534 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2025-03-09 02:01:53,535 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:01:53,544 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:01:53,544 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:01:53,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:01:53 BoogieIcfgContainer [2025-03-09 02:01:53,545 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:01:53,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:01:53,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:01:53,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:01:53,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:01:53" (1/3) ... [2025-03-09 02:01:53,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b301bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:01:53, skipping insertion in model container [2025-03-09 02:01:53,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:01:53" (2/3) ... [2025-03-09 02:01:53,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b301bed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:01:53, skipping insertion in model container [2025-03-09 02:01:53,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:01:53" (3/3) ... [2025-03-09 02:01:53,551 INFO L128 eAbstractionObserver]: Analyzing ICFG hard-ll.c [2025-03-09 02:01:53,561 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:01:53,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hard-ll.c that has 2 procedures, 72 locations, 1 initial locations, 2 loop locations, and 24 error locations. [2025-03-09 02:01:53,602 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:01:53,612 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;@16e7ec8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:01:53,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-03-09 02:01:53,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 40 states have (on average 1.75) internal successors, (70), 63 states have internal predecessors, (70), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-09 02:01:53,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-09 02:01:53,622 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:53,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 02:01:53,623 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:53,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:53,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1337638612, now seen corresponding path program 1 times [2025-03-09 02:01:53,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:53,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371996133] [2025-03-09 02:01:53,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:53,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:53,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 02:01:53,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 02:01:53,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:53,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:01:53,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:53,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371996133] [2025-03-09 02:01:53,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371996133] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:53,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:53,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:01:53,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928311192] [2025-03-09 02:01:53,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:53,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:01:53,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:53,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:01:53,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:01:53,752 INFO L87 Difference]: Start difference. First operand has 72 states, 40 states have (on average 1.75) internal successors, (70), 63 states have internal predecessors, (70), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:01:53,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:53,774 INFO L93 Difference]: Finished difference Result 140 states and 170 transitions. [2025-03-09 02:01:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:01:53,776 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-09 02:01:53,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:53,781 INFO L225 Difference]: With dead ends: 140 [2025-03-09 02:01:53,781 INFO L226 Difference]: Without dead ends: 64 [2025-03-09 02:01:53,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:01:53,786 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:53,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:01:53,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-03-09 02:01:53,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-03-09 02:01:53,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 34 states have (on average 1.7647058823529411) internal successors, (60), 57 states have internal predecessors, (60), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:01:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2025-03-09 02:01:53,827 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 6 [2025-03-09 02:01:53,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:53,828 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2025-03-09 02:01:53,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:01:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2025-03-09 02:01:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-09 02:01:53,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:53,829 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:53,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 02:01:53,830 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:53,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:53,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1606297948, now seen corresponding path program 1 times [2025-03-09 02:01:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:53,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265546754] [2025-03-09 02:01:53,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:53,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:01:53,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:01:53,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:53,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:53,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292779497] [2025-03-09 02:01:53,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:53,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:53,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:53,861 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 02:01:53,862 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 02:01:53,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-09 02:01:53,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-09 02:01:53,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:53,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:53,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:01:53,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:53,940 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 02:01:53,941 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:01:53,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:53,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265546754] [2025-03-09 02:01:53,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:53,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292779497] [2025-03-09 02:01:53,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292779497] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:53,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:53,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:01:53,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17728044] [2025-03-09 02:01:53,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:53,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:01:53,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:53,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:01:53,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:01:53,945 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 02:01:54,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:54,019 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2025-03-09 02:01:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:01:54,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 02:01:54,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:54,020 INFO L225 Difference]: With dead ends: 137 [2025-03-09 02:01:54,020 INFO L226 Difference]: Without dead ends: 89 [2025-03-09 02:01:54,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 02:01:54,021 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 19 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:54,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 109 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:54,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-09 02:01:54,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 83. [2025-03-09 02:01:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.6875) internal successors, (81), 71 states have internal predecessors, (81), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-09 02:01:54,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 101 transitions. [2025-03-09 02:01:54,032 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 101 transitions. Word has length 15 [2025-03-09 02:01:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:54,033 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 101 transitions. [2025-03-09 02:01:54,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 02:01:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2025-03-09 02:01:54,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 02:01:54,034 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:54,034 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:54,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 02:01:54,234 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 02:01:54,235 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:54,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1479458051, now seen corresponding path program 1 times [2025-03-09 02:01:54,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269910840] [2025-03-09 02:01:54,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:54,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:54,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:01:54,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:01:54,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:54,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:54,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844399761] [2025-03-09 02:01:54,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:54,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:54,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:54,258 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 02:01:54,260 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 02:01:54,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:01:54,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:01:54,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:54,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:54,293 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:01:54,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:54,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:01:54,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:01:54,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:54,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269910840] [2025-03-09 02:01:54,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:54,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844399761] [2025-03-09 02:01:54,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844399761] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:54,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:54,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:01:54,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833287531] [2025-03-09 02:01:54,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:54,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:01:54,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:54,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:01:54,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:01:54,311 INFO L87 Difference]: Start difference. First operand 83 states and 101 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:54,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:54,369 INFO L93 Difference]: Finished difference Result 117 states and 144 transitions. [2025-03-09 02:01:54,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:01:54,369 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-09 02:01:54,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:54,370 INFO L225 Difference]: With dead ends: 117 [2025-03-09 02:01:54,370 INFO L226 Difference]: Without dead ends: 113 [2025-03-09 02:01:54,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 02:01:54,371 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 39 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:54,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 87 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:01:54,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-09 02:01:54,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 99. [2025-03-09 02:01:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 62 states have (on average 1.6612903225806452) internal successors, (103), 85 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:01:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 127 transitions. [2025-03-09 02:01:54,385 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 127 transitions. Word has length 23 [2025-03-09 02:01:54,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:54,386 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 127 transitions. [2025-03-09 02:01:54,386 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 127 transitions. [2025-03-09 02:01:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 02:01:54,386 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:54,386 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:54,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 02:01:54,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-09 02:01:54,587 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:54,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:54,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1479458011, now seen corresponding path program 1 times [2025-03-09 02:01:54,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:54,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179978933] [2025-03-09 02:01:54,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:54,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:54,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:01:54,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:01:54,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:54,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:54,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:01:54,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:54,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179978933] [2025-03-09 02:01:54,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179978933] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:54,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:54,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:01:54,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134894791] [2025-03-09 02:01:54,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:54,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:01:54,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:54,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:01:54,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:01:54,713 INFO L87 Difference]: Start difference. First operand 99 states and 127 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:54,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:54,755 INFO L93 Difference]: Finished difference Result 99 states and 127 transitions. [2025-03-09 02:01:54,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:01:54,756 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2025-03-09 02:01:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:54,757 INFO L225 Difference]: With dead ends: 99 [2025-03-09 02:01:54,757 INFO L226 Difference]: Without dead ends: 97 [2025-03-09 02:01:54,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:01:54,759 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 38 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:54,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 57 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:01:54,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-03-09 02:01:54,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2025-03-09 02:01:54,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 62 states have (on average 1.596774193548387) internal successors, (99), 83 states have internal predecessors, (99), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:01:54,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 123 transitions. [2025-03-09 02:01:54,766 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 123 transitions. Word has length 23 [2025-03-09 02:01:54,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:54,767 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 123 transitions. [2025-03-09 02:01:54,767 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:54,767 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 123 transitions. [2025-03-09 02:01:54,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-09 02:01:54,767 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:54,767 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:54,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 02:01:54,767 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:54,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:54,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1381441937, now seen corresponding path program 1 times [2025-03-09 02:01:54,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:54,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006204155] [2025-03-09 02:01:54,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:54,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:54,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 02:01:54,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 02:01:54,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:54,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:01:54,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:54,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006204155] [2025-03-09 02:01:54,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006204155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:54,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:54,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:01:54,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040906019] [2025-03-09 02:01:54,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:54,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:01:54,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:54,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:01:54,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:01:54,833 INFO L87 Difference]: Start difference. First operand 97 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:54,871 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2025-03-09 02:01:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:01:54,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2025-03-09 02:01:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:54,873 INFO L225 Difference]: With dead ends: 104 [2025-03-09 02:01:54,873 INFO L226 Difference]: Without dead ends: 103 [2025-03-09 02:01:54,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 02:01:54,874 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:54,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 104 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:01:54,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-09 02:01:54,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2025-03-09 02:01:54,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 62 states have (on average 1.5806451612903225) internal successors, (98), 83 states have internal predecessors, (98), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:01:54,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2025-03-09 02:01:54,885 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 24 [2025-03-09 02:01:54,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:54,885 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2025-03-09 02:01:54,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:54,886 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2025-03-09 02:01:54,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:01:54,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:54,886 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:54,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 02:01:54,887 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:54,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:54,887 INFO L85 PathProgramCache]: Analyzing trace with hash -125011621, now seen corresponding path program 1 times [2025-03-09 02:01:54,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:54,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102490937] [2025-03-09 02:01:54,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:54,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:54,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:01:54,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:01:54,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:54,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:54,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:01:54,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:54,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102490937] [2025-03-09 02:01:54,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102490937] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:54,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:54,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:01:54,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118955881] [2025-03-09 02:01:54,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:54,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:01:54,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:54,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:01:54,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:01:54,976 INFO L87 Difference]: Start difference. First operand 97 states and 122 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:55,129 INFO L93 Difference]: Finished difference Result 111 states and 135 transitions. [2025-03-09 02:01:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:01:55,130 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2025-03-09 02:01:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:55,131 INFO L225 Difference]: With dead ends: 111 [2025-03-09 02:01:55,131 INFO L226 Difference]: Without dead ends: 110 [2025-03-09 02:01:55,131 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 02:01:55,131 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 82 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:55,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 77 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:55,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-09 02:01:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2025-03-09 02:01:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 65 states have (on average 1.5538461538461539) internal successors, (101), 86 states have internal predecessors, (101), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:01:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2025-03-09 02:01:55,148 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 25 [2025-03-09 02:01:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:55,148 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2025-03-09 02:01:55,148 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:55,148 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2025-03-09 02:01:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-09 02:01:55,149 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:55,149 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:55,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 02:01:55,149 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:55,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:55,149 INFO L85 PathProgramCache]: Analyzing trace with hash 419607054, now seen corresponding path program 1 times [2025-03-09 02:01:55,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:55,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783001336] [2025-03-09 02:01:55,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:55,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 02:01:55,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:01:55,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:55,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:55,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1148321] [2025-03-09 02:01:55,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:55,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:55,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:55,172 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 02:01:55,174 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 02:01:55,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 02:01:55,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:01:55,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:55,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:55,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:01:55,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:55,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:01:55,290 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:01:55,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783001336] [2025-03-09 02:01:55,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:55,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148321] [2025-03-09 02:01:55,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148321] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:55,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:55,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:01:55,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496106805] [2025-03-09 02:01:55,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:55,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:01:55,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:55,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:01:55,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:01:55,292 INFO L87 Difference]: Start difference. First operand 100 states and 125 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:55,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:55,414 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2025-03-09 02:01:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:01:55,415 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2025-03-09 02:01:55,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:55,416 INFO L225 Difference]: With dead ends: 106 [2025-03-09 02:01:55,416 INFO L226 Difference]: Without dead ends: 103 [2025-03-09 02:01:55,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 02:01:55,416 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 20 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:55,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 103 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:55,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-09 02:01:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2025-03-09 02:01:55,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 68 states have (on average 1.5147058823529411) internal successors, (103), 89 states have internal predecessors, (103), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:01:55,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 127 transitions. [2025-03-09 02:01:55,435 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 127 transitions. Word has length 26 [2025-03-09 02:01:55,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:55,435 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 127 transitions. [2025-03-09 02:01:55,435 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:01:55,436 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 127 transitions. [2025-03-09 02:01:55,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-09 02:01:55,436 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:55,436 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:55,443 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 02:01:55,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:55,637 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:55,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:55,646 INFO L85 PathProgramCache]: Analyzing trace with hash 318596564, now seen corresponding path program 1 times [2025-03-09 02:01:55,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:55,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508048272] [2025-03-09 02:01:55,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:55,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:55,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 02:01:55,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 02:01:55,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:55,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:55,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277809389] [2025-03-09 02:01:55,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:55,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:55,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:55,664 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 02:01:55,665 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 02:01:55,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 02:01:55,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 02:01:55,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:55,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:55,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:01:55,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-09 02:01:55,734 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:01:55,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:55,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508048272] [2025-03-09 02:01:55,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:55,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277809389] [2025-03-09 02:01:55,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277809389] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:55,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:55,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:01:55,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940239541] [2025-03-09 02:01:55,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:55,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:01:55,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:55,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:01:55,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:01:55,736 INFO L87 Difference]: Start difference. First operand 103 states and 127 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:01:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:55,804 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions. [2025-03-09 02:01:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:01:55,804 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2025-03-09 02:01:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:55,805 INFO L225 Difference]: With dead ends: 119 [2025-03-09 02:01:55,806 INFO L226 Difference]: Without dead ends: 109 [2025-03-09 02:01:55,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 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 02:01:55,806 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 39 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:55,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 126 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:55,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-03-09 02:01:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2025-03-09 02:01:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 75 states have (on average 1.4133333333333333) internal successors, (106), 92 states have internal predecessors, (106), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:01:55,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 134 transitions. [2025-03-09 02:01:55,818 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 134 transitions. Word has length 37 [2025-03-09 02:01:55,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:55,818 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 134 transitions. [2025-03-09 02:01:55,818 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:01:55,818 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 134 transitions. [2025-03-09 02:01:55,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 02:01:55,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:55,819 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:55,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 02:01:56,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:56,023 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:56,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1286558921, now seen corresponding path program 1 times [2025-03-09 02:01:56,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:56,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463189731] [2025-03-09 02:01:56,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:56,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:56,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:01:56,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:01:56,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:56,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:56,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635366329] [2025-03-09 02:01:56,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:56,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:56,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:56,039 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 02:01:56,040 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 02:01:56,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:01:56,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:01:56,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:56,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:56,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:01:56,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-09 02:01:56,109 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:01:56,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:56,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463189731] [2025-03-09 02:01:56,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:56,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635366329] [2025-03-09 02:01:56,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635366329] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:01:56,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:01:56,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-09 02:01:56,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708879790] [2025-03-09 02:01:56,173 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:01:56,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:01:56,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:56,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:01:56,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:01:56,173 INFO L87 Difference]: Start difference. First operand 108 states and 134 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:01:56,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:56,246 INFO L93 Difference]: Finished difference Result 180 states and 230 transitions. [2025-03-09 02:01:56,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:01:56,246 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 38 [2025-03-09 02:01:56,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:56,247 INFO L225 Difference]: With dead ends: 180 [2025-03-09 02:01:56,248 INFO L226 Difference]: Without dead ends: 176 [2025-03-09 02:01:56,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:01:56,248 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 43 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:56,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 137 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:56,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2025-03-09 02:01:56,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 162. [2025-03-09 02:01:56,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 120 states have (on average 1.425) internal successors, (171), 137 states have internal predecessors, (171), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:01:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2025-03-09 02:01:56,265 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 38 [2025-03-09 02:01:56,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:56,265 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2025-03-09 02:01:56,266 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:01:56,266 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2025-03-09 02:01:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:01:56,266 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:56,267 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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 02:01:56,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 02:01:56,467 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 02:01:56,467 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:56,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash -259674666, now seen corresponding path program 1 times [2025-03-09 02:01:56,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:56,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212992583] [2025-03-09 02:01:56,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:56,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:56,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:01:56,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:01:56,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:56,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:56,530 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-09 02:01:56,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:56,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212992583] [2025-03-09 02:01:56,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212992583] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:56,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:56,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:01:56,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031668967] [2025-03-09 02:01:56,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:56,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:01:56,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:56,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:01:56,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:01:56,531 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:01:56,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:56,647 INFO L93 Difference]: Finished difference Result 172 states and 228 transitions. [2025-03-09 02:01:56,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:01:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 42 [2025-03-09 02:01:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:56,652 INFO L225 Difference]: With dead ends: 172 [2025-03-09 02:01:56,652 INFO L226 Difference]: Without dead ends: 159 [2025-03-09 02:01:56,652 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 02:01:56,653 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:56,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 104 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:56,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2025-03-09 02:01:56,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 151. [2025-03-09 02:01:56,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 111 states have (on average 1.4504504504504505) internal successors, (161), 128 states have internal predecessors, (161), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-09 02:01:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 203 transitions. [2025-03-09 02:01:56,667 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 203 transitions. Word has length 42 [2025-03-09 02:01:56,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:56,667 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 203 transitions. [2025-03-09 02:01:56,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:01:56,667 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 203 transitions. [2025-03-09 02:01:56,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:01:56,668 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:56,668 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:56,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 02:01:56,668 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:56,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1779324831, now seen corresponding path program 1 times [2025-03-09 02:01:56,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:56,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603773522] [2025-03-09 02:01:56,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:56,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:56,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:01:56,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:01:56,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:56,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:01:56,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:56,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603773522] [2025-03-09 02:01:56,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603773522] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:01:56,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964668597] [2025-03-09 02:01:56,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:56,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:56,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:56,713 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 02:01:56,714 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 02:01:56,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:01:56,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:01:56,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:56,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:56,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:01:56,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:01:56,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:01:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:01:56,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964668597] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:01:56,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:01:56,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-09 02:01:56,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183584924] [2025-03-09 02:01:56,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:01:56,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:01:56,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:56,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:01:56,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:01:56,833 INFO L87 Difference]: Start difference. First operand 151 states and 203 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-09 02:01:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:56,948 INFO L93 Difference]: Finished difference Result 262 states and 346 transitions. [2025-03-09 02:01:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:01:56,948 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), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 46 [2025-03-09 02:01:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:56,950 INFO L225 Difference]: With dead ends: 262 [2025-03-09 02:01:56,950 INFO L226 Difference]: Without dead ends: 260 [2025-03-09 02:01:56,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:01:56,951 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 148 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:56,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 166 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:56,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2025-03-09 02:01:56,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 213. [2025-03-09 02:01:56,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 161 states have (on average 1.453416149068323) internal successors, (234), 178 states have internal predecessors, (234), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2025-03-09 02:01:56,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 300 transitions. [2025-03-09 02:01:56,972 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 300 transitions. Word has length 46 [2025-03-09 02:01:56,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:56,973 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 300 transitions. [2025-03-09 02:01:56,973 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), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-09 02:01:56,973 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 300 transitions. [2025-03-09 02:01:56,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-09 02:01:56,973 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:56,973 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:01:56,983 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 02:01:57,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:57,178 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:57,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:57,178 INFO L85 PathProgramCache]: Analyzing trace with hash -535378722, now seen corresponding path program 1 times [2025-03-09 02:01:57,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:57,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796325977] [2025-03-09 02:01:57,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:57,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:57,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:01:57,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:01:57,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:57,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:57,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [764827985] [2025-03-09 02:01:57,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:57,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:57,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:57,191 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 02:01:57,193 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 02:01:57,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:01:57,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:01:57,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:57,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:57,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:01:57,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:01:57,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:01:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:01:57,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:57,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796325977] [2025-03-09 02:01:57,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:57,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764827985] [2025-03-09 02:01:57,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764827985] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:01:57,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:01:57,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-09 02:01:57,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986295251] [2025-03-09 02:01:57,463 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:01:57,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:01:57,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:57,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:01:57,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:01:57,463 INFO L87 Difference]: Start difference. First operand 213 states and 300 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-09 02:01:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:57,812 INFO L93 Difference]: Finished difference Result 242 states and 337 transitions. [2025-03-09 02:01:57,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:01:57,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 48 [2025-03-09 02:01:57,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:57,814 INFO L225 Difference]: With dead ends: 242 [2025-03-09 02:01:57,814 INFO L226 Difference]: Without dead ends: 236 [2025-03-09 02:01:57,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:01:57,815 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 187 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:57,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 118 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:01:57,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2025-03-09 02:01:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 207. [2025-03-09 02:01:57,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 157 states have (on average 1.4203821656050954) internal successors, (223), 174 states have internal predecessors, (223), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-09 02:01:57,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2025-03-09 02:01:57,830 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 48 [2025-03-09 02:01:57,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:57,830 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2025-03-09 02:01:57,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2025-03-09 02:01:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2025-03-09 02:01:57,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-09 02:01:57,831 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:57,831 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 02:01:57,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 02:01:58,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:58,035 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:58,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:58,035 INFO L85 PathProgramCache]: Analyzing trace with hash 380481433, now seen corresponding path program 2 times [2025-03-09 02:01:58,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:58,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629087295] [2025-03-09 02:01:58,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:01:58,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:58,040 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-09 02:01:58,047 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-09 02:01:58,047 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:01:58,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:01:58,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1311670807] [2025-03-09 02:01:58,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:01:58,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:58,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:58,051 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 02:01:58,052 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 02:01:58,073 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-09 02:01:58,086 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-09 02:01:58,087 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:01:58,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:58,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:01:58,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:01:58,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:01:58,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629087295] [2025-03-09 02:01:58,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:01:58,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311670807] [2025-03-09 02:01:58,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311670807] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:01:58,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:01:58,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-09 02:01:58,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129447626] [2025-03-09 02:01:58,160 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:01:58,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:01:58,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:58,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:01:58,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:01:58,161 INFO L87 Difference]: Start difference. First operand 207 states and 285 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:01:58,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:58,281 INFO L93 Difference]: Finished difference Result 316 states and 425 transitions. [2025-03-09 02:01:58,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:01:58,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2025-03-09 02:01:58,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:58,284 INFO L225 Difference]: With dead ends: 316 [2025-03-09 02:01:58,284 INFO L226 Difference]: Without dead ends: 312 [2025-03-09 02:01:58,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:01:58,286 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 61 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:58,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 188 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:58,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-03-09 02:01:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 230. [2025-03-09 02:01:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 176 states have (on average 1.375) internal successors, (242), 193 states have internal predecessors, (242), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-09 02:01:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 312 transitions. [2025-03-09 02:01:58,305 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 312 transitions. Word has length 60 [2025-03-09 02:01:58,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:58,306 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 312 transitions. [2025-03-09 02:01:58,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:01:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 312 transitions. [2025-03-09 02:01:58,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-09 02:01:58,306 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:58,307 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1] [2025-03-09 02:01:58,313 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 02:01:58,507 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,SelfDestructingSolverStorable12 [2025-03-09 02:01:58,507 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:58,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:58,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1442874976, now seen corresponding path program 1 times [2025-03-09 02:01:58,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:58,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105393209] [2025-03-09 02:01:58,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:58,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:58,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-09 02:01:58,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-09 02:01:58,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:58,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-09 02:01:58,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:58,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105393209] [2025-03-09 02:01:58,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105393209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:58,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:01:58,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560588821] [2025-03-09 02:01:58,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:58,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:01:58,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:58,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:01:58,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:01:58,560 INFO L87 Difference]: Start difference. First operand 230 states and 312 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:01:58,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:58,633 INFO L93 Difference]: Finished difference Result 230 states and 312 transitions. [2025-03-09 02:01:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:01:58,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 67 [2025-03-09 02:01:58,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:58,634 INFO L225 Difference]: With dead ends: 230 [2025-03-09 02:01:58,635 INFO L226 Difference]: Without dead ends: 229 [2025-03-09 02:01:58,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:01:58,635 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:58,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 94 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2025-03-09 02:01:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2025-03-09 02:01:58,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 176 states have (on average 1.3579545454545454) internal successors, (239), 192 states have internal predecessors, (239), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-09 02:01:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 309 transitions. [2025-03-09 02:01:58,651 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 309 transitions. Word has length 67 [2025-03-09 02:01:58,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:58,651 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 309 transitions. [2025-03-09 02:01:58,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:01:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 309 transitions. [2025-03-09 02:01:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-09 02:01:58,652 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:58,652 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1] [2025-03-09 02:01:58,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 02:01:58,652 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1779451283, now seen corresponding path program 1 times [2025-03-09 02:01:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294373220] [2025-03-09 02:01:58,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:58,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-09 02:01:58,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-09 02:01:58,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:58,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-09 02:01:58,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:58,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294373220] [2025-03-09 02:01:58,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294373220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:58,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:01:58,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 02:01:58,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821759572] [2025-03-09 02:01:58,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:58,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:01:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:58,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:01:58,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:01:58,797 INFO L87 Difference]: Start difference. First operand 229 states and 309 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:01:59,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:59,059 INFO L93 Difference]: Finished difference Result 381 states and 529 transitions. [2025-03-09 02:01:59,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:01:59,059 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2025-03-09 02:01:59,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:59,061 INFO L225 Difference]: With dead ends: 381 [2025-03-09 02:01:59,061 INFO L226 Difference]: Without dead ends: 380 [2025-03-09 02:01:59,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:01:59,061 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 90 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:59,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 207 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:01:59,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-03-09 02:01:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 325. [2025-03-09 02:01:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.4192307692307693) internal successors, (369), 276 states have internal predecessors, (369), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-09 02:01:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 463 transitions. [2025-03-09 02:01:59,085 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 463 transitions. Word has length 68 [2025-03-09 02:01:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:59,086 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 463 transitions. [2025-03-09 02:01:59,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-09 02:01:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 463 transitions. [2025-03-09 02:01:59,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-09 02:01:59,086 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:59,087 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1] [2025-03-09 02:01:59,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 02:01:59,087 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:59,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:59,087 INFO L85 PathProgramCache]: Analyzing trace with hash -671585090, now seen corresponding path program 1 times [2025-03-09 02:01:59,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:59,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967376382] [2025-03-09 02:01:59,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:59,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:59,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-09 02:01:59,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-09 02:01:59,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:59,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:01:59,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:59,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967376382] [2025-03-09 02:01:59,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967376382] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:01:59,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33799521] [2025-03-09 02:01:59,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:59,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:59,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:59,237 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 02:01:59,238 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 02:01:59,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-09 02:01:59,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-09 02:01:59,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:59,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:59,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:01:59,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:01:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-09 02:01:59,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:01:59,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33799521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:01:59,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:01:59,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-09 02:01:59,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683299494] [2025-03-09 02:01:59,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:01:59,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:01:59,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:01:59,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:01:59,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:01:59,399 INFO L87 Difference]: Start difference. First operand 325 states and 463 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:01:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:01:59,568 INFO L93 Difference]: Finished difference Result 368 states and 512 transitions. [2025-03-09 02:01:59,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:01:59,569 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2025-03-09 02:01:59,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:01:59,571 INFO L225 Difference]: With dead ends: 368 [2025-03-09 02:01:59,571 INFO L226 Difference]: Without dead ends: 367 [2025-03-09 02:01:59,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:01:59,571 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 53 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:01:59,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 110 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:01:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-03-09 02:01:59,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 334. [2025-03-09 02:01:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 269 states have (on average 1.4052044609665428) internal successors, (378), 285 states have internal predecessors, (378), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-09 02:01:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 472 transitions. [2025-03-09 02:01:59,598 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 472 transitions. Word has length 69 [2025-03-09 02:01:59,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:01:59,598 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 472 transitions. [2025-03-09 02:01:59,598 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:01:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 472 transitions. [2025-03-09 02:01:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-09 02:01:59,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:01:59,599 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1] [2025-03-09 02:01:59,605 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 02:01:59,801 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,SelfDestructingSolverStorable15 [2025-03-09 02:01:59,801 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:01:59,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:01:59,801 INFO L85 PathProgramCache]: Analyzing trace with hash 655698673, now seen corresponding path program 1 times [2025-03-09 02:01:59,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:01:59,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161401290] [2025-03-09 02:01:59,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:59,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:01:59,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-09 02:01:59,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-09 02:01:59,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:59,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:59,917 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:01:59,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:01:59,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161401290] [2025-03-09 02:01:59,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161401290] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:01:59,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967298382] [2025-03-09 02:01:59,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:01:59,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:01:59,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:01:59,920 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 02:01:59,922 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 02:01:59,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-09 02:01:59,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-09 02:01:59,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:01:59,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:01:59,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:01:59,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:00,062 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-09 02:02:00,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:02:00,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967298382] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:00,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:00,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2025-03-09 02:02:00,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29237301] [2025-03-09 02:02:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:00,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:02:00,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:00,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:02:00,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:02:00,064 INFO L87 Difference]: Start difference. First operand 334 states and 472 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:02:00,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:00,178 INFO L93 Difference]: Finished difference Result 342 states and 479 transitions. [2025-03-09 02:02:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:02:00,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 70 [2025-03-09 02:02:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:00,180 INFO L225 Difference]: With dead ends: 342 [2025-03-09 02:02:00,180 INFO L226 Difference]: Without dead ends: 340 [2025-03-09 02:02:00,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:02:00,181 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 30 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:00,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 73 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-09 02:02:00,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 337. [2025-03-09 02:02:00,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 272 states have (on average 1.3933823529411764) internal successors, (379), 288 states have internal predecessors, (379), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-03-09 02:02:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 473 transitions. [2025-03-09 02:02:00,215 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 473 transitions. Word has length 70 [2025-03-09 02:02:00,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:00,215 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 473 transitions. [2025-03-09 02:02:00,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:02:00,215 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 473 transitions. [2025-03-09 02:02:00,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-09 02:02:00,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:00,216 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1] [2025-03-09 02:02:00,222 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 02:02:00,418 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,SelfDestructingSolverStorable16 [2025-03-09 02:02:00,418 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:00,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:00,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1148177602, now seen corresponding path program 1 times [2025-03-09 02:02:00,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:00,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290781021] [2025-03-09 02:02:00,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:00,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-09 02:02:00,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-09 02:02:00,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:00,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:00,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2010553978] [2025-03-09 02:02:00,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:00,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:00,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:00,445 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 02:02:00,447 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 02:02:00,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-09 02:02:00,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-09 02:02:00,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:00,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:00,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:02:00,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:00,752 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:02:00,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:01,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:01,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290781021] [2025-03-09 02:02:01,112 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:01,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010553978] [2025-03-09 02:02:01,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010553978] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:01,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:01,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:02:01,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318828033] [2025-03-09 02:02:01,112 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:01,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:02:01,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:01,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:02:01,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:02:01,113 INFO L87 Difference]: Start difference. First operand 337 states and 473 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:02:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:01,439 INFO L93 Difference]: Finished difference Result 410 states and 571 transitions. [2025-03-09 02:02:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:02:01,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2025-03-09 02:02:01,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:01,441 INFO L225 Difference]: With dead ends: 410 [2025-03-09 02:02:01,441 INFO L226 Difference]: Without dead ends: 409 [2025-03-09 02:02:01,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:02:01,442 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 55 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:01,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 179 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:02:01,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-09 02:02:01,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 383. [2025-03-09 02:02:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 312 states have (on average 1.3717948717948718) internal successors, (428), 328 states have internal predecessors, (428), 53 states have call successors, (53), 1 states have call predecessors, (53), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2025-03-09 02:02:01,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 534 transitions. [2025-03-09 02:02:01,469 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 534 transitions. Word has length 71 [2025-03-09 02:02:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:01,469 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 534 transitions. [2025-03-09 02:02:01,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 9 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:02:01,469 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 534 transitions. [2025-03-09 02:02:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-09 02:02:01,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:01,470 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1] [2025-03-09 02:02:01,476 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 02:02:01,670 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,SelfDestructingSolverStorable17 [2025-03-09 02:02:01,671 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:01,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:01,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1233767281, now seen corresponding path program 1 times [2025-03-09 02:02:01,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:01,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009750881] [2025-03-09 02:02:01,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:01,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:01,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 02:02:01,683 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 02:02:01,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:01,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:01,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [409110160] [2025-03-09 02:02:01,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:01,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:01,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:01,687 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 02:02:01,689 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 02:02:01,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-09 02:02:01,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-09 02:02:01,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:01,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:01,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:02:01,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:02,005 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:02:02,005 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:02,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:02,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009750881] [2025-03-09 02:02:02,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:02,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409110160] [2025-03-09 02:02:02,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409110160] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:02,407 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:02,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:02:02,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256666009] [2025-03-09 02:02:02,407 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:02,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:02:02,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:02,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:02:02,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:02:02,408 INFO L87 Difference]: Start difference. First operand 383 states and 534 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:02:02,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:02,670 INFO L93 Difference]: Finished difference Result 429 states and 600 transitions. [2025-03-09 02:02:02,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:02:02,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2025-03-09 02:02:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:02,672 INFO L225 Difference]: With dead ends: 429 [2025-03-09 02:02:02,672 INFO L226 Difference]: Without dead ends: 428 [2025-03-09 02:02:02,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:02:02,673 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 53 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:02,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 150 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:02:02,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-03-09 02:02:02,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 415. [2025-03-09 02:02:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 340 states have (on average 1.3588235294117648) internal successors, (462), 356 states have internal predecessors, (462), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-03-09 02:02:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 576 transitions. [2025-03-09 02:02:02,698 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 576 transitions. Word has length 72 [2025-03-09 02:02:02,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:02,699 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 576 transitions. [2025-03-09 02:02:02,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:02:02,699 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 576 transitions. [2025-03-09 02:02:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-09 02:02:02,699 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:02,699 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1] [2025-03-09 02:02:02,706 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 02:02:02,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:02,900 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:02,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash 407919964, now seen corresponding path program 1 times [2025-03-09 02:02:02,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:02,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737195226] [2025-03-09 02:02:02,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:02,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:02,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-09 02:02:02,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-09 02:02:02,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:02,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2025-03-09 02:02:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737195226] [2025-03-09 02:02:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737195226] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:02:02,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871772027] [2025-03-09 02:02:02,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:02,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:02:02,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:02,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:02:02,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:02:02,971 INFO L87 Difference]: Start difference. First operand 415 states and 576 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:02:03,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:03,102 INFO L93 Difference]: Finished difference Result 415 states and 576 transitions. [2025-03-09 02:02:03,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:02:03,102 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 73 [2025-03-09 02:02:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:03,104 INFO L225 Difference]: With dead ends: 415 [2025-03-09 02:02:03,104 INFO L226 Difference]: Without dead ends: 414 [2025-03-09 02:02:03,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:02:03,105 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 68 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:03,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 76 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:03,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2025-03-09 02:02:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2025-03-09 02:02:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 340 states have (on average 1.3352941176470587) internal successors, (454), 355 states have internal predecessors, (454), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-03-09 02:02:03,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 568 transitions. [2025-03-09 02:02:03,133 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 568 transitions. Word has length 73 [2025-03-09 02:02:03,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:03,134 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 568 transitions. [2025-03-09 02:02:03,134 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), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-09 02:02:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 568 transitions. [2025-03-09 02:02:03,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-09 02:02:03,134 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:03,134 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1] [2025-03-09 02:02:03,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-09 02:02:03,134 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:03,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:03,135 INFO L85 PathProgramCache]: Analyzing trace with hash -239382995, now seen corresponding path program 1 times [2025-03-09 02:02:03,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:03,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258417583] [2025-03-09 02:02:03,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:03,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:03,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-09 02:02:03,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-09 02:02:03,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:03,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:03,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757249691] [2025-03-09 02:02:03,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:03,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:03,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:03,156 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 02:02:03,160 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 02:02:03,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-09 02:02:03,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-09 02:02:03,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:03,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:03,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-09 02:02:03,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:03,677 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:02:03,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:05,274 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-03-09 02:02:05,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:05,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258417583] [2025-03-09 02:02:05,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:05,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757249691] [2025-03-09 02:02:05,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757249691] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:05,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:02:05,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2025-03-09 02:02:05,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051992248] [2025-03-09 02:02:05,275 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:05,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-09 02:02:05,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:05,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-09 02:02:05,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2025-03-09 02:02:05,276 INFO L87 Difference]: Start difference. First operand 414 states and 568 transitions. Second operand has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-09 02:02:09,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:09,721 INFO L93 Difference]: Finished difference Result 549 states and 750 transitions. [2025-03-09 02:02:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-09 02:02:09,722 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 74 [2025-03-09 02:02:09,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:09,724 INFO L225 Difference]: With dead ends: 549 [2025-03-09 02:02:09,724 INFO L226 Difference]: Without dead ends: 431 [2025-03-09 02:02:09,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=376, Invalid=814, Unknown=0, NotChecked=0, Total=1190 [2025-03-09 02:02:09,725 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 197 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:09,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 168 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 925 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-09 02:02:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2025-03-09 02:02:09,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 389. [2025-03-09 02:02:09,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 321 states have (on average 1.3489096573208723) internal successors, (433), 336 states have internal predecessors, (433), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-09 02:02:09,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 535 transitions. [2025-03-09 02:02:09,753 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 535 transitions. Word has length 74 [2025-03-09 02:02:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:09,753 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 535 transitions. [2025-03-09 02:02:09,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 20 states have internal predecessors, (68), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-09 02:02:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 535 transitions. [2025-03-09 02:02:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-09 02:02:09,754 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:09,754 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2025-03-09 02:02:09,760 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 02:02:09,954 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,SelfDestructingSolverStorable20 [2025-03-09 02:02:09,955 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:09,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:09,955 INFO L85 PathProgramCache]: Analyzing trace with hash -430371223, now seen corresponding path program 3 times [2025-03-09 02:02:09,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:09,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346942697] [2025-03-09 02:02:09,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:09,959 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 82 statements into 9 equivalence classes. [2025-03-09 02:02:09,971 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 02:02:09,971 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-09 02:02:09,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:09,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196684964] [2025-03-09 02:02:09,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:09,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:09,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:09,974 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 02:02:09,975 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 02:02:09,996 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 82 statements into 9 equivalence classes. [2025-03-09 02:02:10,026 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 33 of 82 statements. [2025-03-09 02:02:10,026 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-09 02:02:10,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:10,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:02:10,028 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:10,128 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 26 proven. 26 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2025-03-09 02:02:10,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:10,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:10,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346942697] [2025-03-09 02:02:10,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:10,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196684964] [2025-03-09 02:02:10,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196684964] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:10,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:10,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:02:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704623437] [2025-03-09 02:02:10,299 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:10,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:02:10,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:10,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:02:10,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:02:10,302 INFO L87 Difference]: Start difference. First operand 389 states and 535 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:02:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:10,848 INFO L93 Difference]: Finished difference Result 401 states and 547 transitions. [2025-03-09 02:02:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:02:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 82 [2025-03-09 02:02:10,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:10,853 INFO L225 Difference]: With dead ends: 401 [2025-03-09 02:02:10,853 INFO L226 Difference]: Without dead ends: 397 [2025-03-09 02:02:10,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:02:10,854 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 87 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:10,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 147 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:02:10,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2025-03-09 02:02:10,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 384. [2025-03-09 02:02:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 319 states have (on average 1.3072100313479624) internal successors, (417), 331 states have internal predecessors, (417), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-09 02:02:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 519 transitions. [2025-03-09 02:02:10,893 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 519 transitions. Word has length 82 [2025-03-09 02:02:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:10,893 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 519 transitions. [2025-03-09 02:02:10,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:02:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 519 transitions. [2025-03-09 02:02:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-03-09 02:02:10,894 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:10,894 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:10,900 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 02:02:11,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:11,099 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:11,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:11,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1236330583, now seen corresponding path program 1 times [2025-03-09 02:02:11,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:11,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174695323] [2025-03-09 02:02:11,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:11,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:11,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-09 02:02:11,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-09 02:02:11,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:11,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:11,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061792163] [2025-03-09 02:02:11,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:11,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:11,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:11,123 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 02:02:11,125 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 02:02:11,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-03-09 02:02:11,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-03-09 02:02:11,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:11,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:11,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:02:11,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:02:11,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:12,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:12,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174695323] [2025-03-09 02:02:12,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:12,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061792163] [2025-03-09 02:02:12,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061792163] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:12,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:12,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:02:12,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236396771] [2025-03-09 02:02:12,230 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:12,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:02:12,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:12,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:02:12,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:02:12,231 INFO L87 Difference]: Start difference. First operand 384 states and 519 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 02:02:12,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:12,456 INFO L93 Difference]: Finished difference Result 389 states and 526 transitions. [2025-03-09 02:02:12,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:02:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 88 [2025-03-09 02:02:12,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:12,458 INFO L225 Difference]: With dead ends: 389 [2025-03-09 02:02:12,459 INFO L226 Difference]: Without dead ends: 388 [2025-03-09 02:02:12,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:02:12,459 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:12,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 195 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:02:12,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2025-03-09 02:02:12,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 385. [2025-03-09 02:02:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 320 states have (on average 1.30625) internal successors, (418), 332 states have internal predecessors, (418), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-09 02:02:12,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 520 transitions. [2025-03-09 02:02:12,490 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 520 transitions. Word has length 88 [2025-03-09 02:02:12,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:12,490 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 520 transitions. [2025-03-09 02:02:12,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 02:02:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 520 transitions. [2025-03-09 02:02:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-09 02:02:12,491 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:12,492 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:12,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-09 02:02:12,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:12,692 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:12,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:12,693 INFO L85 PathProgramCache]: Analyzing trace with hash -328457612, now seen corresponding path program 1 times [2025-03-09 02:02:12,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:12,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122882860] [2025-03-09 02:02:12,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:12,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:12,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-09 02:02:12,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-09 02:02:12,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:12,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:12,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397700832] [2025-03-09 02:02:12,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:12,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:12,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:12,713 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 02:02:12,714 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 02:02:12,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-09 02:02:12,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-09 02:02:12,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:12,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:12,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 02:02:12,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2025-03-09 02:02:13,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:14,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:14,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122882860] [2025-03-09 02:02:14,116 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:14,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397700832] [2025-03-09 02:02:14,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397700832] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:14,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:14,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:02:14,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430440560] [2025-03-09 02:02:14,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:14,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:02:14,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:14,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:02:14,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2025-03-09 02:02:14,117 INFO L87 Difference]: Start difference. First operand 385 states and 520 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-09 02:02:14,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:14,601 INFO L93 Difference]: Finished difference Result 391 states and 527 transitions. [2025-03-09 02:02:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:02:14,601 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 89 [2025-03-09 02:02:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:14,603 INFO L225 Difference]: With dead ends: 391 [2025-03-09 02:02:14,603 INFO L226 Difference]: Without dead ends: 390 [2025-03-09 02:02:14,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=125, Invalid=427, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:02:14,604 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 26 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:14,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 224 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:02:14,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-03-09 02:02:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 386. [2025-03-09 02:02:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 321 states have (on average 1.3052959501557633) internal successors, (419), 333 states have internal predecessors, (419), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-09 02:02:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 521 transitions. [2025-03-09 02:02:14,631 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 521 transitions. Word has length 89 [2025-03-09 02:02:14,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:14,631 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 521 transitions. [2025-03-09 02:02:14,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 13 states have internal predecessors, (45), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-09 02:02:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 521 transitions. [2025-03-09 02:02:14,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-09 02:02:14,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:14,633 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:14,640 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 02:02:14,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-09 02:02:14,839 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:14,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:14,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1592251403, now seen corresponding path program 1 times [2025-03-09 02:02:14,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:14,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210781805] [2025-03-09 02:02:14,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:14,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:14,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-09 02:02:14,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-09 02:02:14,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:14,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:14,895 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-09 02:02:14,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:14,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210781805] [2025-03-09 02:02:14,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210781805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:14,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:14,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:02:14,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567720179] [2025-03-09 02:02:14,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:14,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:02:14,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:14,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:02:14,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:02:14,897 INFO L87 Difference]: Start difference. First operand 386 states and 521 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:02:15,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:15,013 INFO L93 Difference]: Finished difference Result 386 states and 521 transitions. [2025-03-09 02:02:15,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:02:15,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2025-03-09 02:02:15,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:15,015 INFO L225 Difference]: With dead ends: 386 [2025-03-09 02:02:15,016 INFO L226 Difference]: Without dead ends: 385 [2025-03-09 02:02:15,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:02:15,016 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 40 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:15,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 104 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-03-09 02:02:15,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 382. [2025-03-09 02:02:15,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 318 states have (on average 1.3050314465408805) internal successors, (415), 329 states have internal predecessors, (415), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2025-03-09 02:02:15,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 517 transitions. [2025-03-09 02:02:15,047 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 517 transitions. Word has length 90 [2025-03-09 02:02:15,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:15,047 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 517 transitions. [2025-03-09 02:02:15,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:02:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 517 transitions. [2025-03-09 02:02:15,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-09 02:02:15,048 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:15,048 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2025-03-09 02:02:15,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-09 02:02:15,049 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:15,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:15,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1901115329, now seen corresponding path program 1 times [2025-03-09 02:02:15,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:15,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213240049] [2025-03-09 02:02:15,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:15,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:15,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 02:02:15,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 02:02:15,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:15,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-09 02:02:15,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213240049] [2025-03-09 02:02:15,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213240049] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:15,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347335087] [2025-03-09 02:02:15,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:15,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:15,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:15,113 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 02:02:15,115 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 02:02:15,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-09 02:02:15,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-09 02:02:15,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:15,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:15,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:02:15,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-09 02:02:15,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:15,274 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2025-03-09 02:02:15,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347335087] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:15,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:15,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-09 02:02:15,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331094258] [2025-03-09 02:02:15,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:15,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:02:15,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:15,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:02:15,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:02:15,275 INFO L87 Difference]: Start difference. First operand 382 states and 517 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-09 02:02:15,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:15,480 INFO L93 Difference]: Finished difference Result 781 states and 1045 transitions. [2025-03-09 02:02:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:02:15,480 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 92 [2025-03-09 02:02:15,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:15,482 INFO L225 Difference]: With dead ends: 781 [2025-03-09 02:02:15,482 INFO L226 Difference]: Without dead ends: 779 [2025-03-09 02:02:15,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 178 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 02:02:15,483 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 220 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:15,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 314 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:15,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2025-03-09 02:02:15,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 435. [2025-03-09 02:02:15,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 357 states have (on average 1.2829131652661065) internal successors, (458), 368 states have internal predecessors, (458), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2025-03-09 02:02:15,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 588 transitions. [2025-03-09 02:02:15,517 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 588 transitions. Word has length 92 [2025-03-09 02:02:15,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:15,518 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 588 transitions. [2025-03-09 02:02:15,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2025-03-09 02:02:15,518 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 588 transitions. [2025-03-09 02:02:15,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-09 02:02:15,518 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:15,519 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:15,525 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-09 02:02:15,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-09 02:02:15,719 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:15,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:15,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2115153262, now seen corresponding path program 1 times [2025-03-09 02:02:15,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:15,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478800440] [2025-03-09 02:02:15,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:15,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:15,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 02:02:15,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 02:02:15,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:15,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:15,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704793495] [2025-03-09 02:02:15,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:15,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:15,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:15,736 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 02:02:15,738 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 02:02:15,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-09 02:02:15,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-09 02:02:15,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:15,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:15,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-09 02:02:15,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:02:16,146 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:16,676 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:02:16,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478800440] [2025-03-09 02:02:16,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:16,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704793495] [2025-03-09 02:02:16,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704793495] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:16,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:02:16,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2025-03-09 02:02:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317510359] [2025-03-09 02:02:16,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:16,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-09 02:02:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:16,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-09 02:02:16,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:02:16,678 INFO L87 Difference]: Start difference. First operand 435 states and 588 transitions. Second operand has 17 states, 16 states have (on average 5.125) internal successors, (82), 17 states have internal predecessors, (82), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2025-03-09 02:02:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:18,471 INFO L93 Difference]: Finished difference Result 485 states and 651 transitions. [2025-03-09 02:02:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-09 02:02:18,471 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.125) internal successors, (82), 17 states have internal predecessors, (82), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 91 [2025-03-09 02:02:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:18,474 INFO L225 Difference]: With dead ends: 485 [2025-03-09 02:02:18,474 INFO L226 Difference]: Without dead ends: 470 [2025-03-09 02:02:18,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=237, Invalid=519, Unknown=0, NotChecked=0, Total=756 [2025-03-09 02:02:18,475 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 185 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:18,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 215 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-09 02:02:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2025-03-09 02:02:18,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 441. [2025-03-09 02:02:18,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 363 states have (on average 1.2920110192837466) internal successors, (469), 374 states have internal predecessors, (469), 65 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2025-03-09 02:02:18,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 599 transitions. [2025-03-09 02:02:18,514 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 599 transitions. Word has length 91 [2025-03-09 02:02:18,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:18,514 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 599 transitions. [2025-03-09 02:02:18,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.125) internal successors, (82), 17 states have internal predecessors, (82), 8 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2025-03-09 02:02:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 599 transitions. [2025-03-09 02:02:18,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-03-09 02:02:18,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:18,515 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:02:18,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:18,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-09 02:02:18,719 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:18,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2115269230, now seen corresponding path program 2 times [2025-03-09 02:02:18,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:18,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441427685] [2025-03-09 02:02:18,720 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:18,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:18,725 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 93 statements into 2 equivalence classes. [2025-03-09 02:02:18,740 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 93 of 93 statements. [2025-03-09 02:02:18,740 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:18,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:18,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1361084037] [2025-03-09 02:02:18,741 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:18,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:18,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:18,744 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 02:02:18,752 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 02:02:18,774 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 93 statements into 2 equivalence classes. [2025-03-09 02:02:18,791 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 93 of 93 statements. [2025-03-09 02:02:18,791 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:18,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:18,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:02:18,792 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:18,885 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-09 02:02:18,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:19,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441427685] [2025-03-09 02:02:19,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361084037] [2025-03-09 02:02:19,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361084037] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:19,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:19,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-09 02:02:19,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124559277] [2025-03-09 02:02:19,278 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:19,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:02:19,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:19,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:02:19,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:02:19,279 INFO L87 Difference]: Start difference. First operand 441 states and 599 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-09 02:02:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:19,458 INFO L93 Difference]: Finished difference Result 711 states and 989 transitions. [2025-03-09 02:02:19,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:02:19,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2025-03-09 02:02:19,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:19,460 INFO L225 Difference]: With dead ends: 711 [2025-03-09 02:02:19,460 INFO L226 Difference]: Without dead ends: 698 [2025-03-09 02:02:19,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:02:19,461 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 60 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:19,461 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 186 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2025-03-09 02:02:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 520. [2025-03-09 02:02:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 432 states have (on average 1.212962962962963) internal successors, (524), 441 states have internal predecessors, (524), 77 states have call successors, (77), 1 states have call predecessors, (77), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2025-03-09 02:02:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 678 transitions. [2025-03-09 02:02:19,513 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 678 transitions. Word has length 93 [2025-03-09 02:02:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:19,514 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 678 transitions. [2025-03-09 02:02:19,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-09 02:02:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 678 transitions. [2025-03-09 02:02:19,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-09 02:02:19,514 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:19,514 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:02:19,521 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 02:02:19,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:19,715 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:19,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:19,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1148836703, now seen corresponding path program 2 times [2025-03-09 02:02:19,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:19,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280749822] [2025-03-09 02:02:19,716 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:19,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:19,720 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 94 statements into 2 equivalence classes. [2025-03-09 02:02:19,729 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 94 of 94 statements. [2025-03-09 02:02:19,729 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:19,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:19,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104271538] [2025-03-09 02:02:19,730 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:19,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:19,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:19,733 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 02:02:19,735 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 02:02:19,756 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 94 statements into 2 equivalence classes. [2025-03-09 02:02:19,774 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 94 of 94 statements. [2025-03-09 02:02:19,774 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:19,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:19,775 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:02:19,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-09 02:02:19,863 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:20,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280749822] [2025-03-09 02:02:20,171 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:20,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104271538] [2025-03-09 02:02:20,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104271538] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:20,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:20,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:02:20,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593562883] [2025-03-09 02:02:20,171 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:20,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:02:20,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:20,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:02:20,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:02:20,172 INFO L87 Difference]: Start difference. First operand 520 states and 678 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-09 02:02:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:20,327 INFO L93 Difference]: Finished difference Result 693 states and 898 transitions. [2025-03-09 02:02:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:02:20,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2025-03-09 02:02:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:20,330 INFO L225 Difference]: With dead ends: 693 [2025-03-09 02:02:20,330 INFO L226 Difference]: Without dead ends: 586 [2025-03-09 02:02:20,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:02:20,330 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 73 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:20,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 228 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:20,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2025-03-09 02:02:20,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 571. [2025-03-09 02:02:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 475 states have (on average 1.2021052631578948) internal successors, (571), 484 states have internal predecessors, (571), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-09 02:02:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 741 transitions. [2025-03-09 02:02:20,377 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 741 transitions. Word has length 94 [2025-03-09 02:02:20,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:20,378 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 741 transitions. [2025-03-09 02:02:20,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-09 02:02:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 741 transitions. [2025-03-09 02:02:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-03-09 02:02:20,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:20,379 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:20,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:20,579 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,SelfDestructingSolverStorable28 [2025-03-09 02:02:20,579 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:20,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:20,580 INFO L85 PathProgramCache]: Analyzing trace with hash 4854114, now seen corresponding path program 1 times [2025-03-09 02:02:20,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:20,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111041570] [2025-03-09 02:02:20,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:20,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:20,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-09 02:02:20,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-09 02:02:20,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:20,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-03-09 02:02:20,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:20,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111041570] [2025-03-09 02:02:20,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111041570] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:20,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288444505] [2025-03-09 02:02:20,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:20,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:20,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:20,744 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 02:02:20,745 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 02:02:20,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-03-09 02:02:20,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-03-09 02:02:20,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:20,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:20,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:02:20,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:02:20,834 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:02:20,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288444505] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:20,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:20,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2025-03-09 02:02:20,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127907854] [2025-03-09 02:02:20,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:20,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:02:20,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:20,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:02:20,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:02:20,901 INFO L87 Difference]: Start difference. First operand 571 states and 741 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2025-03-09 02:02:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:21,409 INFO L93 Difference]: Finished difference Result 927 states and 1226 transitions. [2025-03-09 02:02:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 02:02:21,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 94 [2025-03-09 02:02:21,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:21,411 INFO L225 Difference]: With dead ends: 927 [2025-03-09 02:02:21,411 INFO L226 Difference]: Without dead ends: 800 [2025-03-09 02:02:21,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2025-03-09 02:02:21,412 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 158 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:21,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 397 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:02:21,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2025-03-09 02:02:21,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 567. [2025-03-09 02:02:21,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 471 states have (on average 1.2250530785562632) internal successors, (577), 480 states have internal predecessors, (577), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-09 02:02:21,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 747 transitions. [2025-03-09 02:02:21,463 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 747 transitions. Word has length 94 [2025-03-09 02:02:21,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:21,463 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 747 transitions. [2025-03-09 02:02:21,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 6 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2025-03-09 02:02:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 747 transitions. [2025-03-09 02:02:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-09 02:02:21,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:21,464 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 02:02:21,470 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 02:02:21,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:21,668 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:02:21,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:21,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1880521169, now seen corresponding path program 3 times [2025-03-09 02:02:21,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:21,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361172375] [2025-03-09 02:02:21,669 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:21,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:21,672 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 116 statements into 9 equivalence classes. [2025-03-09 02:02:21,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 116 of 116 statements. [2025-03-09 02:02:21,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-09 02:02:21,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:21,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1493579546] [2025-03-09 02:02:21,690 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:21,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:21,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:21,691 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 02:02:21,694 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 02:02:21,716 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 116 statements into 9 equivalence classes. [2025-03-09 02:02:21,729 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 38 of 116 statements. [2025-03-09 02:02:21,729 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-09 02:02:21,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:21,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-09 02:02:21,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2025-03-09 02:02:54,081 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:55,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:55,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361172375] [2025-03-09 02:02:55,186 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:55,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493579546] [2025-03-09 02:02:55,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493579546] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:55,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:55,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:02:55,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974211073] [2025-03-09 02:02:55,187 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:55,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:02:55,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:55,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:02:55,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:02:55,187 INFO L87 Difference]: Start difference. First operand 567 states and 747 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-09 02:02:59,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:02,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:06,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:10,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:14,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:23,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:27,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-09 02:03:28,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:03:28,010 INFO L93 Difference]: Finished difference Result 687 states and 902 transitions. [2025-03-09 02:03:28,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 02:03:28,011 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 116 [2025-03-09 02:03:28,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:03:28,014 INFO L225 Difference]: With dead ends: 687 [2025-03-09 02:03:28,014 INFO L226 Difference]: Without dead ends: 681 [2025-03-09 02:03:28,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2025-03-09 02:03:28,016 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 86 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 20 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:03:28,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 97 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 436 Invalid, 6 Unknown, 0 Unchecked, 28.7s Time] [2025-03-09 02:03:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2025-03-09 02:03:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 580. [2025-03-09 02:03:28,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 486 states have (on average 1.2325102880658436) internal successors, (599), 495 states have internal predecessors, (599), 83 states have call successors, (83), 1 states have call predecessors, (83), 1 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-09 02:03:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 765 transitions. [2025-03-09 02:03:28,079 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 765 transitions. Word has length 116 [2025-03-09 02:03:28,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:03:28,079 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 765 transitions. [2025-03-09 02:03:28,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-09 02:03:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 765 transitions. [2025-03-09 02:03:28,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-09 02:03:28,080 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:03:28,080 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:03:28,086 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 02:03:28,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:28,284 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-09 02:03:28,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:03:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1000388557, now seen corresponding path program 2 times [2025-03-09 02:03:28,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:03:28,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479857264] [2025-03-09 02:03:28,284 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:03:28,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:03:28,292 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-09 02:03:28,304 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 02:03:28,304 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:03:28,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:03:28,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [324280685] [2025-03-09 02:03:28,305 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:03:28,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:28,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:03:28,307 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 02:03:28,308 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 02:03:28,336 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-09 02:03:28,359 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 02:03:28,359 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:03:28,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:03:28,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-03-09 02:03:28,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:03:28,960 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2025-03-09 02:03:28,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:03:29,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:03:29,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479857264] [2025-03-09 02:03:29,402 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:03:29,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324280685] [2025-03-09 02:03:29,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324280685] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:03:29,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:03:29,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-09 02:03:29,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308151880] [2025-03-09 02:03:29,402 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:03:29,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 02:03:29,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:03:29,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 02:03:29,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2025-03-09 02:03:29,403 INFO L87 Difference]: Start difference. First operand 580 states and 765 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 15 states have internal predecessors, (51), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)