./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench/ps2-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/ps2-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 179b0134270d97f57074f9ac11d0788729a2f9ba65b60cccc5fdcd06091925db --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:02:03,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:02:03,215 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:02:03,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:02:03,221 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:02:03,242 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:02:03,243 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:02:03,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:02:03,243 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:02:03,243 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:02:03,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:02:03,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:02:03,244 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:02:03,244 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:02:03,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:02:03,245 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:02:03,246 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:02:03,246 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:02:03,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:02:03,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:02:03,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:02:03,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:02:03,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:02:03,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:02:03,248 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 -> 179b0134270d97f57074f9ac11d0788729a2f9ba65b60cccc5fdcd06091925db [2025-03-09 02:02:03,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:02:03,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:02:03,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:02:03,491 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:02:03,491 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:02:03,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/ps2-ll.c [2025-03-09 02:02:04,671 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0c53550/de5a3cda350b4dbabb953277079e3076/FLAGc55132649 [2025-03-09 02:02:04,874 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:02:04,874 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/ps2-ll.c [2025-03-09 02:02:04,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0c53550/de5a3cda350b4dbabb953277079e3076/FLAGc55132649 [2025-03-09 02:02:04,888 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb0c53550/de5a3cda350b4dbabb953277079e3076 [2025-03-09 02:02:04,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:02:04,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:02:04,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:02:04,892 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:02:04,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:02:04,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:02:04" (1/1) ... [2025-03-09 02:02:04,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fc561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:04, skipping insertion in model container [2025-03-09 02:02:04,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:02:04" (1/1) ... [2025-03-09 02:02:04,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:02:05,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:02:05,015 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:02:05,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:02:05,041 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:02:05,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05 WrapperNode [2025-03-09 02:02:05,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:02:05,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:02:05,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:02:05,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:02:05,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,062 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2025-03-09 02:02:05,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:02:05,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:02:05,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:02:05,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:02:05,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,075 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,085 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 02:02:05,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,087 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,089 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:02:05,094 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:02:05,094 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:02:05,094 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:02:05,095 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (1/1) ... [2025-03-09 02:02:05,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:02:05,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:05,125 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 02:02:05,127 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 02:02:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:02:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:02:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:02:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:02:05,148 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:02:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:02:05,190 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:02:05,191 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:02:05,367 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2025-03-09 02:02:05,367 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:02:05,373 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:02:05,374 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:02:05,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:02:05 BoogieIcfgContainer [2025-03-09 02:02:05,374 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:02:05,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:02:05,376 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:02:05,379 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:02:05,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:02:04" (1/3) ... [2025-03-09 02:02:05,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a03e2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:02:05, skipping insertion in model container [2025-03-09 02:02:05,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:02:05" (2/3) ... [2025-03-09 02:02:05,381 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a03e2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:02:05, skipping insertion in model container [2025-03-09 02:02:05,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:02:05" (3/3) ... [2025-03-09 02:02:05,382 INFO L128 eAbstractionObserver]: Analyzing ICFG ps2-ll.c [2025-03-09 02:02:05,394 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:02:05,395 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-ll.c that has 2 procedures, 59 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2025-03-09 02:02:05,430 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:02:05,440 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;@11d6ea1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:02:05,440 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-09 02:02:05,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 33 states have (on average 1.7575757575757576) internal successors, (58), 55 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-09 02:02:05,448 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:05,449 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-09 02:02:05,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:05,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash 82386, now seen corresponding path program 1 times [2025-03-09 02:02:05,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:05,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335304256] [2025-03-09 02:02:05,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:05,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:05,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 02:02:05,509 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 02:02:05,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:05,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:05,536 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 02:02:05,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:05,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335304256] [2025-03-09 02:02:05,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335304256] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:05,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:05,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 02:02:05,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380298746] [2025-03-09 02:02:05,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:05,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:02:05,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:05,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:02:05,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:02:05,557 INFO L87 Difference]: Start difference. First operand has 59 states, 33 states have (on average 1.7575757575757576) internal successors, (58), 55 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:05,570 INFO L93 Difference]: Finished difference Result 113 states and 123 transitions. [2025-03-09 02:02:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:02:05,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-09 02:02:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:05,574 INFO L225 Difference]: With dead ends: 113 [2025-03-09 02:02:05,574 INFO L226 Difference]: Without dead ends: 50 [2025-03-09 02:02:05,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:02:05,577 INFO L435 NwaCegarLoop]: 57 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, 57 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 02:02:05,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:02:05,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2025-03-09 02:02:05,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2025-03-09 02:02:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 47 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2025-03-09 02:02:05,601 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 3 [2025-03-09 02:02:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:05,601 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2025-03-09 02:02:05,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2025-03-09 02:02:05,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-09 02:02:05,602 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:05,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-09 02:02:05,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 02:02:05,602 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:05,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2553983, now seen corresponding path program 1 times [2025-03-09 02:02:05,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:05,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614186027] [2025-03-09 02:02:05,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:05,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:05,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 02:02:05,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 02:02:05,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:05,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:05,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279127954] [2025-03-09 02:02:05,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:05,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:05,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:05,615 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 02:02:05,617 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 02:02:05,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 02:02:05,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 02:02:05,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:05,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:05,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:02:05,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:05,680 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 02:02:05,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:02:05,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:05,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614186027] [2025-03-09 02:02:05,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:05,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279127954] [2025-03-09 02:02:05,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279127954] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:05,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:05,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:02:05,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988923960] [2025-03-09 02:02:05,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:05,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:02:05,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:05,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:02:05,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:02:05,683 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:05,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:05,772 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2025-03-09 02:02:05,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:02:05,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-09 02:02:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:05,774 INFO L225 Difference]: With dead ends: 82 [2025-03-09 02:02:05,774 INFO L226 Difference]: Without dead ends: 78 [2025-03-09 02:02:05,774 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 02:02:05,775 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:05,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 49 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:05,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-09 02:02:05,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2025-03-09 02:02:05,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.6744186046511629) internal successors, (72), 62 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:05,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2025-03-09 02:02:05,783 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 4 [2025-03-09 02:02:05,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:05,783 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2025-03-09 02:02:05,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:05,784 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2025-03-09 02:02:05,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-09 02:02:05,784 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:05,784 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 02:02:05,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 02:02:05,985 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 02:02:05,985 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:05,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash 79173488, now seen corresponding path program 1 times [2025-03-09 02:02:05,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:05,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761576357] [2025-03-09 02:02:05,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:05,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:05,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 02:02:05,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 02:02:05,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:05,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:06,019 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 02:02:06,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:06,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761576357] [2025-03-09 02:02:06,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761576357] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:06,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:06,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:02:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484139486] [2025-03-09 02:02:06,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:06,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:02:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:06,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:02:06,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:02:06,021 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:06,096 INFO L93 Difference]: Finished difference Result 84 states and 91 transitions. [2025-03-09 02:02:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:02:06,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-09 02:02:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:06,097 INFO L225 Difference]: With dead ends: 84 [2025-03-09 02:02:06,097 INFO L226 Difference]: Without dead ends: 76 [2025-03-09 02:02:06,097 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 02:02:06,098 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:06,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 53 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-03-09 02:02:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2025-03-09 02:02:06,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 67 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2025-03-09 02:02:06,106 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 5 [2025-03-09 02:02:06,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:06,106 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2025-03-09 02:02:06,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:06,106 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2025-03-09 02:02:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 02:02:06,106 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:06,106 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:06,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 02:02:06,108 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:06,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash 720348347, now seen corresponding path program 1 times [2025-03-09 02:02:06,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:06,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066885836] [2025-03-09 02:02:06,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:06,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:06,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 02:02:06,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 02:02:06,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:06,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:06,193 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 02:02:06,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:06,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066885836] [2025-03-09 02:02:06,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066885836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:06,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:02:06,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122041351] [2025-03-09 02:02:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:06,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:02:06,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:06,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:02:06,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:02:06,194 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:06,311 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2025-03-09 02:02:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:02:06,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-09 02:02:06,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:06,312 INFO L225 Difference]: With dead ends: 80 [2025-03-09 02:02:06,312 INFO L226 Difference]: Without dead ends: 68 [2025-03-09 02:02:06,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:02:06,313 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 20 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:06,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 63 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-03-09 02:02:06,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2025-03-09 02:02:06,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 41 states have (on average 1.5365853658536586) internal successors, (63), 60 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 67 transitions. [2025-03-09 02:02:06,321 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 67 transitions. Word has length 8 [2025-03-09 02:02:06,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:06,322 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 67 transitions. [2025-03-09 02:02:06,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 02:02:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 67 transitions. [2025-03-09 02:02:06,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-09 02:02:06,322 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:06,322 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:06,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 02:02:06,322 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:06,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1242974632, now seen corresponding path program 1 times [2025-03-09 02:02:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:06,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521141889] [2025-03-09 02:02:06,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:06,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 02:02:06,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 02:02:06,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:06,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:06,401 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 02:02:06,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:06,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521141889] [2025-03-09 02:02:06,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521141889] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:06,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:06,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:02:06,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033422430] [2025-03-09 02:02:06,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:06,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:02:06,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:06,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:02:06,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:02:06,403 INFO L87 Difference]: Start difference. First operand 64 states and 67 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:06,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:06,419 INFO L93 Difference]: Finished difference Result 66 states and 67 transitions. [2025-03-09 02:02:06,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:02:06,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2025-03-09 02:02:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:06,432 INFO L225 Difference]: With dead ends: 66 [2025-03-09 02:02:06,432 INFO L226 Difference]: Without dead ends: 64 [2025-03-09 02:02:06,432 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 02:02:06,432 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:06,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 90 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:02:06,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2025-03-09 02:02:06,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2025-03-09 02:02:06,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 41 states have (on average 1.4878048780487805) internal successors, (61), 60 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2025-03-09 02:02:06,443 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 17 [2025-03-09 02:02:06,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:06,445 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2025-03-09 02:02:06,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2025-03-09 02:02:06,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-09 02:02:06,446 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:06,446 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:06,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 02:02:06,446 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:06,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:06,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1560821028, now seen corresponding path program 1 times [2025-03-09 02:02:06,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:06,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846810153] [2025-03-09 02:02:06,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:06,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:06,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:02:06,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:02:06,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:06,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:06,524 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 02:02:06,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:06,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846810153] [2025-03-09 02:02:06,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846810153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:06,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:06,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:02:06,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925421734] [2025-03-09 02:02:06,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:06,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:02:06,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:06,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:02:06,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:02:06,525 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:06,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:06,601 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2025-03-09 02:02:06,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:02:06,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2025-03-09 02:02:06,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:06,603 INFO L225 Difference]: With dead ends: 67 [2025-03-09 02:02:06,603 INFO L226 Difference]: Without dead ends: 66 [2025-03-09 02:02:06,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:02:06,603 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:06,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:06,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-03-09 02:02:06,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2025-03-09 02:02:06,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 61 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2025-03-09 02:02:06,607 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 21 [2025-03-09 02:02:06,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:06,607 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2025-03-09 02:02:06,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:06,608 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2025-03-09 02:02:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 02:02:06,608 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:06,608 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:06,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 02:02:06,608 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:06,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:06,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1140811602, now seen corresponding path program 1 times [2025-03-09 02:02:06,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:06,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941690007] [2025-03-09 02:02:06,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:06,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:06,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:02:06,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:02:06,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:06,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:06,682 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 02:02:06,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:06,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941690007] [2025-03-09 02:02:06,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941690007] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:06,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:02:06,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:02:06,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135807232] [2025-03-09 02:02:06,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:06,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:02:06,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:06,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:02:06,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:02:06,684 INFO L87 Difference]: Start difference. First operand 65 states and 66 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:06,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:06,751 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2025-03-09 02:02:06,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:02:06,752 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-03-09 02:02:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:06,753 INFO L225 Difference]: With dead ends: 67 [2025-03-09 02:02:06,753 INFO L226 Difference]: Without dead ends: 66 [2025-03-09 02:02:06,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:02:06,754 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:06,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:06,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2025-03-09 02:02:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2025-03-09 02:02:06,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 62 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:06,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2025-03-09 02:02:06,763 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 22 [2025-03-09 02:02:06,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:06,763 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2025-03-09 02:02:06,763 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:06,763 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2025-03-09 02:02:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-09 02:02:06,764 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:06,765 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:06,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 02:02:06,765 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:06,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:06,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1103289648, now seen corresponding path program 1 times [2025-03-09 02:02:06,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:06,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79081801] [2025-03-09 02:02:06,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:06,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:06,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 02:02:06,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 02:02:06,782 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:06,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:06,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837040108] [2025-03-09 02:02:06,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:06,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:06,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:06,786 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 02:02:06,787 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 02:02:06,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 02:02:06,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 02:02:06,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:06,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:06,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:02:06,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:06,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:06,867 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:06,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:06,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79081801] [2025-03-09 02:02:06,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:06,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837040108] [2025-03-09 02:02:06,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837040108] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:06,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:02:06,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-03-09 02:02:06,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096566822] [2025-03-09 02:02:06,945 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:06,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:02:06,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:06,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:02:06,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:02:06,946 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:07,066 INFO L93 Difference]: Finished difference Result 129 states and 160 transitions. [2025-03-09 02:02:07,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:02:07,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2025-03-09 02:02:07,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:07,067 INFO L225 Difference]: With dead ends: 129 [2025-03-09 02:02:07,067 INFO L226 Difference]: Without dead ends: 125 [2025-03-09 02:02:07,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:02:07,068 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 105 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:07,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 83 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:07,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2025-03-09 02:02:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 97. [2025-03-09 02:02:07,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.52) internal successors, (114), 91 states have internal predecessors, (114), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:02:07,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 122 transitions. [2025-03-09 02:02:07,074 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 122 transitions. Word has length 24 [2025-03-09 02:02:07,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:07,075 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 122 transitions. [2025-03-09 02:02:07,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:07,075 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 122 transitions. [2025-03-09 02:02:07,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:02:07,075 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:07,075 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:07,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 02:02:07,280 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,SelfDestructingSolverStorable7 [2025-03-09 02:02:07,280 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:07,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:07,280 INFO L85 PathProgramCache]: Analyzing trace with hash -157759265, now seen corresponding path program 1 times [2025-03-09 02:02:07,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:07,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418126269] [2025-03-09 02:02:07,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:07,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:07,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:02:07,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:02:07,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:07,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:07,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:07,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418126269] [2025-03-09 02:02:07,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418126269] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:07,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439389491] [2025-03-09 02:02:07,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:07,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:07,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:07,366 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 02:02:07,368 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 02:02:07,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:02:07,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:02:07,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:07,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:07,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:02:07,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:07,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:07,503 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:07,557 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:07,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439389491] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:07,557 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:07,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-09 02:02:07,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836746190] [2025-03-09 02:02:07,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:07,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 02:02:07,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:07,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 02:02:07,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:02:07,559 INFO L87 Difference]: Start difference. First operand 97 states and 122 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:02:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:07,681 INFO L93 Difference]: Finished difference Result 97 states and 122 transitions. [2025-03-09 02:02:07,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:02:07,681 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2025-03-09 02:02:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:07,682 INFO L225 Difference]: With dead ends: 97 [2025-03-09 02:02:07,682 INFO L226 Difference]: Without dead ends: 94 [2025-03-09 02:02:07,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:02:07,683 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 45 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:07,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 66 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:07,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2025-03-09 02:02:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2025-03-09 02:02:07,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 88 states have internal predecessors, (107), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:02:07,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 115 transitions. [2025-03-09 02:02:07,693 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 115 transitions. Word has length 25 [2025-03-09 02:02:07,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:07,693 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 115 transitions. [2025-03-09 02:02:07,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:02:07,693 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2025-03-09 02:02:07,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-09 02:02:07,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:07,694 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:07,706 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 02:02:07,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:07,894 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:07,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:07,895 INFO L85 PathProgramCache]: Analyzing trace with hash -595569906, now seen corresponding path program 1 times [2025-03-09 02:02:07,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:07,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687788025] [2025-03-09 02:02:07,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:07,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:07,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 02:02:07,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:02:07,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:07,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:07,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:07,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687788025] [2025-03-09 02:02:07,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687788025] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:07,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792928693] [2025-03-09 02:02:07,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:07,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:07,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:07,958 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 02:02:07,959 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 02:02:07,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 02:02:07,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:02:07,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:07,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:07,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:02:07,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:08,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:08,093 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:08,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792928693] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:08,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:08,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-09 02:02:08,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786179510] [2025-03-09 02:02:08,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:08,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 02:02:08,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:08,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 02:02:08,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:02:08,094 INFO L87 Difference]: Start difference. First operand 94 states and 115 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:02:08,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:08,220 INFO L93 Difference]: Finished difference Result 106 states and 127 transitions. [2025-03-09 02:02:08,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:02:08,221 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2025-03-09 02:02:08,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:08,221 INFO L225 Difference]: With dead ends: 106 [2025-03-09 02:02:08,221 INFO L226 Difference]: Without dead ends: 99 [2025-03-09 02:02:08,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:02:08,222 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 52 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:08,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 81 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2025-03-09 02:02:08,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2025-03-09 02:02:08,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 83 states have internal predecessors, (95), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:02:08,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 103 transitions. [2025-03-09 02:02:08,229 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 103 transitions. Word has length 26 [2025-03-09 02:02:08,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:08,230 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 103 transitions. [2025-03-09 02:02:08,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 10 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:02:08,230 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2025-03-09 02:02:08,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-09 02:02:08,230 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:08,230 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:08,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:08,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:08,431 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:08,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1112028948, now seen corresponding path program 1 times [2025-03-09 02:02:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:08,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111748448] [2025-03-09 02:02:08,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:08,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 02:02:08,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 02:02:08,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:08,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:08,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:08,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:08,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111748448] [2025-03-09 02:02:08,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111748448] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:08,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777241176] [2025-03-09 02:02:08,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:08,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:08,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:08,524 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 02:02:08,526 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 02:02:08,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 02:02:08,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 02:02:08,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:08,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:08,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:02:08,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:08,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:02:08,648 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:02:08,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777241176] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:08,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:08,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2025-03-09 02:02:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063564009] [2025-03-09 02:02:08,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:08,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:02:08,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:08,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:02:08,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:02:08,650 INFO L87 Difference]: Start difference. First operand 89 states and 103 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:08,699 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2025-03-09 02:02:08,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:02:08,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2025-03-09 02:02:08,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:08,700 INFO L225 Difference]: With dead ends: 89 [2025-03-09 02:02:08,700 INFO L226 Difference]: Without dead ends: 77 [2025-03-09 02:02:08,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:02:08,700 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 51 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:08,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 33 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:02:08,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-09 02:02:08,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-09 02:02:08,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 71 states have internal predecessors, (77), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:02:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2025-03-09 02:02:08,711 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 28 [2025-03-09 02:02:08,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:08,711 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2025-03-09 02:02:08,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:02:08,711 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2025-03-09 02:02:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-09 02:02:08,711 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:08,712 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:08,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:08,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-09 02:02:08,912 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:08,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:08,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1850035351, now seen corresponding path program 1 times [2025-03-09 02:02:08,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:08,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623053380] [2025-03-09 02:02:08,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:08,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:08,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 02:02:08,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 02:02:08,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:08,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:08,948 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:02:08,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:08,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623053380] [2025-03-09 02:02:08,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623053380] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:08,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225373001] [2025-03-09 02:02:08,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:08,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:08,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:08,951 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 02:02:08,952 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 02:02:08,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-09 02:02:08,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-09 02:02:08,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:08,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:08,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:02:08,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:09,009 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:02:09,009 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:02:09,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225373001] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:09,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:09,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-09 02:02:09,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275460357] [2025-03-09 02:02:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:09,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:02:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:09,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:02:09,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:02:09,010 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:09,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:09,025 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2025-03-09 02:02:09,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:02:09,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2025-03-09 02:02:09,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:09,026 INFO L225 Difference]: With dead ends: 77 [2025-03-09 02:02:09,026 INFO L226 Difference]: Without dead ends: 76 [2025-03-09 02:02:09,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 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 02:02:09,026 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:09,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 46 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:02:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-03-09 02:02:09,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2025-03-09 02:02:09,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.1044776119402986) internal successors, (74), 70 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:02:09,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2025-03-09 02:02:09,031 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 37 [2025-03-09 02:02:09,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:09,031 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2025-03-09 02:02:09,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:09,031 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2025-03-09 02:02:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 02:02:09,031 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:09,032 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:02:09,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:09,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:09,233 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:09,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1516521031, now seen corresponding path program 1 times [2025-03-09 02:02:09,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:09,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452732570] [2025-03-09 02:02:09,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:09,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:09,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:02:09,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:02:09,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:09,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:09,276 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:02:09,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:09,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452732570] [2025-03-09 02:02:09,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452732570] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:09,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006958088] [2025-03-09 02:02:09,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:09,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:09,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:09,278 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 02:02:09,280 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 02:02:09,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:02:09,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:02:09,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:09,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:09,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:02:09,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:02:09,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:09,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:02:09,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006958088] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:09,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:09,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-09 02:02:09,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853769651] [2025-03-09 02:02:09,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:09,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:02:09,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:09,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:02:09,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:02:09,392 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 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 02:02:09,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:09,429 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2025-03-09 02:02:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:02:09,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 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) Word has length 38 [2025-03-09 02:02:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:09,430 INFO L225 Difference]: With dead ends: 89 [2025-03-09 02:02:09,430 INFO L226 Difference]: Without dead ends: 88 [2025-03-09 02:02:09,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:02:09,431 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:09,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 108 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:02:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-03-09 02:02:09,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 86. [2025-03-09 02:02:09,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 76 states have (on average 1.0789473684210527) internal successors, (82), 79 states have internal predecessors, (82), 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 02:02:09,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2025-03-09 02:02:09,436 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 38 [2025-03-09 02:02:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:09,436 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2025-03-09 02:02:09,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 7 states have internal predecessors, (70), 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 02:02:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2025-03-09 02:02:09,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 02:02:09,437 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:09,437 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1] [2025-03-09 02:02:09,443 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 02:02:09,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:09,642 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:09,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:09,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1911798196, now seen corresponding path program 1 times [2025-03-09 02:02:09,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:09,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248549355] [2025-03-09 02:02:09,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:09,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:09,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 02:02:09,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 02:02:09,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:09,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:09,780 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:02:09,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248549355] [2025-03-09 02:02:09,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248549355] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:09,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789766342] [2025-03-09 02:02:09,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:02:09,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:09,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:09,783 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 02:02:09,785 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 02:02:09,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 02:02:09,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 02:02:09,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:02:09,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:09,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 02:02:09,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:02:09,984 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:10,132 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:02:10,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789766342] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:10,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:10,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2025-03-09 02:02:10,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197862625] [2025-03-09 02:02:10,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:10,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-09 02:02:10,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:10,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-09 02:02:10,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-09 02:02:10,135 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 20 states have internal predecessors, (142), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:02:10,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:10,326 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2025-03-09 02:02:10,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:02:10,327 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 20 states have internal predecessors, (142), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 62 [2025-03-09 02:02:10,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:10,328 INFO L225 Difference]: With dead ends: 125 [2025-03-09 02:02:10,328 INFO L226 Difference]: Without dead ends: 124 [2025-03-09 02:02:10,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2025-03-09 02:02:10,329 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:10,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 84 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:10,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2025-03-09 02:02:10,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 122. [2025-03-09 02:02:10,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1) internal successors, (121), 113 states have internal predecessors, (121), 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 02:02:10,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 135 transitions. [2025-03-09 02:02:10,337 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 135 transitions. Word has length 62 [2025-03-09 02:02:10,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:10,337 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 135 transitions. [2025-03-09 02:02:10,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.473684210526316) internal successors, (142), 20 states have internal predecessors, (142), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:02:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 135 transitions. [2025-03-09 02:02:10,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-09 02:02:10,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:10,339 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2025-03-09 02:02:10,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:10,540 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,SelfDestructingSolverStorable13 [2025-03-09 02:02:10,540 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:10,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:10,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2036376688, now seen corresponding path program 2 times [2025-03-09 02:02:10,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:10,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721489948] [2025-03-09 02:02:10,540 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:10,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:10,545 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-03-09 02:02:10,554 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-03-09 02:02:10,554 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:10,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:02:10,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:10,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721489948] [2025-03-09 02:02:10,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721489948] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:10,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277535366] [2025-03-09 02:02:10,655 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:10,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:10,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:10,657 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 02:02:10,658 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 02:02:10,676 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 66 statements into 2 equivalence classes. [2025-03-09 02:02:10,689 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 66 of 66 statements. [2025-03-09 02:02:10,689 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:10,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:10,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:02:10,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:02:10,873 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:02:11,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277535366] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:11,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:11,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-03-09 02:02:11,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5731606] [2025-03-09 02:02:11,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:11,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-09 02:02:11,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:11,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-09 02:02:11,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2025-03-09 02:02:11,025 INFO L87 Difference]: Start difference. First operand 122 states and 135 transitions. Second operand has 22 states, 21 states have (on average 7.142857142857143) internal successors, (150), 22 states have internal predecessors, (150), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:02:11,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:11,288 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2025-03-09 02:02:11,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 02:02:11,288 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.142857142857143) internal successors, (150), 22 states have internal predecessors, (150), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 66 [2025-03-09 02:02:11,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:11,289 INFO L225 Difference]: With dead ends: 130 [2025-03-09 02:02:11,289 INFO L226 Difference]: Without dead ends: 129 [2025-03-09 02:02:11,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2025-03-09 02:02:11,290 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 70 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:11,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 115 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2025-03-09 02:02:11,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2025-03-09 02:02:11,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 114 states have (on average 1.0789473684210527) internal successors, (123), 117 states have internal predecessors, (123), 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 02:02:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2025-03-09 02:02:11,295 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 66 [2025-03-09 02:02:11,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:11,295 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2025-03-09 02:02:11,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.142857142857143) internal successors, (150), 22 states have internal predecessors, (150), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:02:11,295 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2025-03-09 02:02:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-09 02:02:11,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:11,296 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2025-03-09 02:02:11,304 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 02:02:11,496 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,SelfDestructingSolverStorable14 [2025-03-09 02:02:11,496 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:11,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:11,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1632500803, now seen corresponding path program 2 times [2025-03-09 02:02:11,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:11,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558016096] [2025-03-09 02:02:11,497 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:11,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:11,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 84 statements into 2 equivalence classes. [2025-03-09 02:02:11,518 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 02:02:11,519 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:11,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:11,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255624480] [2025-03-09 02:02:11,521 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:11,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:11,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:11,523 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 02:02:11,524 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 02:02:11,544 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 84 statements into 2 equivalence classes. [2025-03-09 02:02:11,560 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 02:02:11,560 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:11,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:11,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 02:02:11,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:02:11,639 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 02:02:11,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:11,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558016096] [2025-03-09 02:02:11,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:02:11,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255624480] [2025-03-09 02:02:11,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255624480] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:11,830 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:02:11,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-09 02:02:11,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056891813] [2025-03-09 02:02:11,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:11,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:02:11,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:11,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:02:11,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:02:11,833 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:02:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:12,095 INFO L93 Difference]: Finished difference Result 180 states and 197 transitions. [2025-03-09 02:02:12,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:02:12,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 84 [2025-03-09 02:02:12,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:12,097 INFO L225 Difference]: With dead ends: 180 [2025-03-09 02:02:12,097 INFO L226 Difference]: Without dead ends: 179 [2025-03-09 02:02:12,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:02:12,097 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 105 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:12,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 231 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:02:12,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2025-03-09 02:02:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 172. [2025-03-09 02:02:12,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 157 states have (on average 1.089171974522293) internal successors, (171), 160 states have internal predecessors, (171), 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 02:02:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 191 transitions. [2025-03-09 02:02:12,104 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 191 transitions. Word has length 84 [2025-03-09 02:02:12,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:12,104 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 191 transitions. [2025-03-09 02:02:12,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.818181818181818) internal successors, (130), 12 states have internal predecessors, (130), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:02:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 191 transitions. [2025-03-09 02:02:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-09 02:02:12,105 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:12,105 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2025-03-09 02:02:12,112 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 02:02:12,305 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,SelfDestructingSolverStorable15 [2025-03-09 02:02:12,306 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:12,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash 668338202, now seen corresponding path program 2 times [2025-03-09 02:02:12,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:12,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295413089] [2025-03-09 02:02:12,306 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:12,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:12,310 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 98 statements into 2 equivalence classes. [2025-03-09 02:02:12,311 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 98 statements. [2025-03-09 02:02:12,311 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 02:02:12,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-03-09 02:02:12,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:12,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295413089] [2025-03-09 02:02:12,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295413089] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:12,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075795066] [2025-03-09 02:02:12,324 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:12,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:12,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:12,326 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 02:02:12,328 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 02:02:12,346 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 98 statements into 2 equivalence classes. [2025-03-09 02:02:12,352 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 98 statements. [2025-03-09 02:02:12,352 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 02:02:12,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:12,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:02:12,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-03-09 02:02:12,424 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:02:12,512 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2025-03-09 02:02:12,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075795066] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:02:12,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:02:12,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-09 02:02:12,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364842753] [2025-03-09 02:02:12,512 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:02:12,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:02:12,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:12,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:02:12,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:02:12,513 INFO L87 Difference]: Start difference. First operand 172 states and 191 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:12,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:12,534 INFO L93 Difference]: Finished difference Result 172 states and 191 transitions. [2025-03-09 02:02:12,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:02:12,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 98 [2025-03-09 02:02:12,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:12,535 INFO L225 Difference]: With dead ends: 172 [2025-03-09 02:02:12,535 INFO L226 Difference]: Without dead ends: 171 [2025-03-09 02:02:12,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:02:12,536 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 29 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:12,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 52 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:02:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-03-09 02:02:12,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2025-03-09 02:02:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 157 states have (on average 1.0509554140127388) internal successors, (165), 159 states have internal predecessors, (165), 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 02:02:12,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 185 transitions. [2025-03-09 02:02:12,544 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 185 transitions. Word has length 98 [2025-03-09 02:02:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:12,545 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 185 transitions. [2025-03-09 02:02:12,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 185 transitions. [2025-03-09 02:02:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-09 02:02:12,546 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:12,547 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2025-03-09 02:02:12,558 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 02:02:12,747 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,SelfDestructingSolverStorable16 [2025-03-09 02:02:12,747 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:12,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:12,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1326333832, now seen corresponding path program 2 times [2025-03-09 02:02:12,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:12,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136008559] [2025-03-09 02:02:12,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:12,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:12,757 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 142 statements into 2 equivalence classes. [2025-03-09 02:02:12,780 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 142 of 142 statements. [2025-03-09 02:02:12,782 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-09 02:02:12,782 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:02:13,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136008559] [2025-03-09 02:02:13,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136008559] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283383448] [2025-03-09 02:02:13,093 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 02:02:13,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:13,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:13,095 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 02:02:13,097 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 02:02:13,118 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 142 statements into 2 equivalence classes. [2025-03-09 02:02:13,126 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 142 statements. [2025-03-09 02:02:13,126 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 02:02:13,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:13,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 02:02:13,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2025-03-09 02:02:13,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:02:13,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283383448] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:13,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:13,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2025-03-09 02:02:13,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752345738] [2025-03-09 02:02:13,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:13,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:02:13,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:13,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:02:13,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2025-03-09 02:02:13,282 INFO L87 Difference]: Start difference. First operand 171 states and 185 transitions. Second operand has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:13,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:13,352 INFO L93 Difference]: Finished difference Result 173 states and 187 transitions. [2025-03-09 02:02:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:02:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 142 [2025-03-09 02:02:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:13,353 INFO L225 Difference]: With dead ends: 173 [2025-03-09 02:02:13,353 INFO L226 Difference]: Without dead ends: 172 [2025-03-09 02:02:13,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2025-03-09 02:02:13,354 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:13,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 33 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:02:13,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2025-03-09 02:02:13,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2025-03-09 02:02:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 157 states have (on average 1.0254777070063694) internal successors, (161), 158 states have internal predecessors, (161), 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 02:02:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 181 transitions. [2025-03-09 02:02:13,361 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 181 transitions. Word has length 142 [2025-03-09 02:02:13,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:13,362 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 181 transitions. [2025-03-09 02:02:13,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:13,362 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 181 transitions. [2025-03-09 02:02:13,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-09 02:02:13,362 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:13,362 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2025-03-09 02:02:13,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:13,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-09 02:02:13,563 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:13,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:13,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1756735796, now seen corresponding path program 3 times [2025-03-09 02:02:13,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:13,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387254202] [2025-03-09 02:02:13,564 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:13,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:13,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 146 statements into 8 equivalence classes. [2025-03-09 02:02:13,612 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 146 of 146 statements. [2025-03-09 02:02:13,613 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-09 02:02:13,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:02:13,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:02:13,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387254202] [2025-03-09 02:02:13,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387254202] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:02:13,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330284658] [2025-03-09 02:02:13,889 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:13,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:13,891 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 02:02:13,893 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 02:02:13,912 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 146 statements into 8 equivalence classes. [2025-03-09 02:02:13,921 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 26 of 146 statements. [2025-03-09 02:02:13,921 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-09 02:02:13,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:13,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-09 02:02:13,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:02:34,700 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2025-03-09 02:02:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2025-03-09 02:02:38,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:02:38,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330284658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:02:38,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:02:38,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2025-03-09 02:02:38,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147070645] [2025-03-09 02:02:38,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:02:38,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:02:38,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:02:38,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:02:38,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=423, Unknown=1, NotChecked=42, Total=552 [2025-03-09 02:02:38,725 INFO L87 Difference]: Start difference. First operand 170 states and 181 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:51,437 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification. DAG size of input: 22 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-09 02:02:59,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:02:59,610 INFO L93 Difference]: Finished difference Result 172 states and 183 transitions. [2025-03-09 02:02:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:02:59,611 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 146 [2025-03-09 02:02:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:02:59,611 INFO L225 Difference]: With dead ends: 172 [2025-03-09 02:02:59,611 INFO L226 Difference]: Without dead ends: 171 [2025-03-09 02:02:59,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 29.1s TimeCoverageRelationStatistics Valid=116, Invalid=641, Unknown=3, NotChecked=52, Total=812 [2025-03-09 02:02:59,613 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 45 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-09 02:02:59,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 33 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 38 Unchecked, 0.6s Time] [2025-03-09 02:02:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2025-03-09 02:02:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2025-03-09 02:02:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.0063694267515924) internal successors, (158), 157 states have internal predecessors, (158), 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 02:02:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 178 transitions. [2025-03-09 02:02:59,629 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 178 transitions. Word has length 146 [2025-03-09 02:02:59,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:02:59,629 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 178 transitions. [2025-03-09 02:02:59,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 9 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-09 02:02:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 178 transitions. [2025-03-09 02:02:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-03-09 02:02:59,631 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:02:59,631 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2025-03-09 02:02:59,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-09 02:02:59,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:59,832 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:02:59,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:02:59,832 INFO L85 PathProgramCache]: Analyzing trace with hash -553109783, now seen corresponding path program 3 times [2025-03-09 02:02:59,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:02:59,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515983531] [2025-03-09 02:02:59,832 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:59,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:02:59,841 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 11 equivalence classes. [2025-03-09 02:02:59,884 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 204 of 204 statements. [2025-03-09 02:02:59,885 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 02:02:59,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:02:59,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178376053] [2025-03-09 02:02:59,886 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-09 02:02:59,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:02:59,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:02:59,888 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 02:02:59,889 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 02:02:59,918 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 204 statements into 11 equivalence classes. [2025-03-09 02:02:59,981 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 204 of 204 statements. [2025-03-09 02:02:59,981 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-09 02:02:59,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:02:59,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 02:02:59,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:03:00,259 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 740 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:03:00,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:03:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 740 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-09 02:03:00,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:03:00,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515983531] [2025-03-09 02:03:00,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:03:00,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178376053] [2025-03-09 02:03:00,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178376053] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:03:00,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:03:00,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-03-09 02:03:00,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616916671] [2025-03-09 02:03:00,840 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:03:00,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-09 02:03:00,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:03:00,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-09 02:03:00,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:03:00,842 INFO L87 Difference]: Start difference. First operand 169 states and 178 transitions. Second operand has 24 states, 23 states have (on average 13.478260869565217) internal successors, (310), 24 states have internal predecessors, (310), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-09 02:03:02,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:03:02,220 INFO L93 Difference]: Finished difference Result 362 states and 394 transitions. [2025-03-09 02:03:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-09 02:03:02,220 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 13.478260869565217) internal successors, (310), 24 states have internal predecessors, (310), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 204 [2025-03-09 02:03:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:03:02,222 INFO L225 Difference]: With dead ends: 362 [2025-03-09 02:03:02,222 INFO L226 Difference]: Without dead ends: 361 [2025-03-09 02:03:02,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2025-03-09 02:03:02,223 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 145 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-09 02:03:02,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 848 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-09 02:03:02,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2025-03-09 02:03:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2025-03-09 02:03:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 337 states have (on average 1.002967359050445) internal successors, (338), 337 states have internal predecessors, (338), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-09 02:03:02,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 382 transitions. [2025-03-09 02:03:02,239 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 382 transitions. Word has length 204 [2025-03-09 02:03:02,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:03:02,239 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 382 transitions. [2025-03-09 02:03:02,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 13.478260869565217) internal successors, (310), 24 states have internal predecessors, (310), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-09 02:03:02,239 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 382 transitions. [2025-03-09 02:03:02,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2025-03-09 02:03:02,243 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:03:02,243 INFO L218 NwaCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2025-03-09 02:03:02,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-09 02:03:02,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:02,447 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:03:02,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:03:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash -902717899, now seen corresponding path program 4 times [2025-03-09 02:03:02,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:03:02,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697851162] [2025-03-09 02:03:02,448 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:03:02,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:03:02,459 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 444 statements into 2 equivalence classes. [2025-03-09 02:03:02,513 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 444 of 444 statements. [2025-03-09 02:03:02,514 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 02:03:02,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:03:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751725856] [2025-03-09 02:03:02,516 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-09 02:03:02,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:02,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:03:02,518 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 02:03:02,519 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 02:03:02,551 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 444 statements into 2 equivalence classes. [2025-03-09 02:03:02,627 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 444 of 444 statements. [2025-03-09 02:03:02,627 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-09 02:03:02,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:03:02,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-09 02:03:02,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:03:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 4664 backedges. 0 proven. 3740 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-03-09 02:03:03,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:03:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4664 backedges. 0 proven. 3740 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2025-03-09 02:03:04,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:03:04,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697851162] [2025-03-09 02:03:04,847 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:03:04,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751725856] [2025-03-09 02:03:04,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751725856] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:03:04,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:03:04,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2025-03-09 02:03:04,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017412745] [2025-03-09 02:03:04,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:03:04,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-03-09 02:03:04,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:03:04,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-03-09 02:03:04,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2025-03-09 02:03:04,849 INFO L87 Difference]: Start difference. First operand 361 states and 382 transitions. Second operand has 48 states, 47 states have (on average 14.25531914893617) internal successors, (670), 48 states have internal predecessors, (670), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-03-09 02:03:09,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:03:09,301 INFO L93 Difference]: Finished difference Result 746 states and 814 transitions. [2025-03-09 02:03:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-03-09 02:03:09,302 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 14.25531914893617) internal successors, (670), 48 states have internal predecessors, (670), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 444 [2025-03-09 02:03:09,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:03:09,305 INFO L225 Difference]: With dead ends: 746 [2025-03-09 02:03:09,305 INFO L226 Difference]: Without dead ends: 745 [2025-03-09 02:03:09,307 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 908 GetRequests, 840 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2025-03-09 02:03:09,307 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 277 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 6042 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 3428 SdHoareTripleChecker+Invalid, 6067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 6042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-09 02:03:09,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 3428 Invalid, 6067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 6042 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-09 02:03:09,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2025-03-09 02:03:09,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 745. [2025-03-09 02:03:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 697 states have (on average 1.0014347202295553) internal successors, (698), 697 states have internal predecessors, (698), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-09 02:03:09,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 790 transitions. [2025-03-09 02:03:09,361 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 790 transitions. Word has length 444 [2025-03-09 02:03:09,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:03:09,361 INFO L471 AbstractCegarLoop]: Abstraction has 745 states and 790 transitions. [2025-03-09 02:03:09,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 14.25531914893617) internal successors, (670), 48 states have internal predecessors, (670), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-03-09 02:03:09,362 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 790 transitions. [2025-03-09 02:03:09,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2025-03-09 02:03:09,381 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:03:09,381 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1] [2025-03-09 02:03:09,388 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 02:03:09,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:09,582 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:03:09,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:03:09,583 INFO L85 PathProgramCache]: Analyzing trace with hash 327169229, now seen corresponding path program 5 times [2025-03-09 02:03:09,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:03:09,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668857615] [2025-03-09 02:03:09,583 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 02:03:09,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:03:09,608 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 924 statements into 47 equivalence classes. [2025-03-09 02:03:10,025 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 924 of 924 statements. [2025-03-09 02:03:10,026 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-09 02:03:10,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:03:10,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2060378188] [2025-03-09 02:03:10,030 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-09 02:03:10,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:10,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:03:10,032 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 02:03:10,034 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 02:03:10,082 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 924 statements into 47 equivalence classes. [2025-03-09 02:03:11,253 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 924 of 924 statements. [2025-03-09 02:03:11,254 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-09 02:03:11,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:03:11,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-03-09 02:03:11,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:03:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 20792 backedges. 0 proven. 16652 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-03-09 02:03:12,976 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:03:17,505 INFO L134 CoverageAnalysis]: Checked inductivity of 20792 backedges. 0 proven. 16652 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2025-03-09 02:03:17,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:03:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668857615] [2025-03-09 02:03:17,505 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:03:17,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060378188] [2025-03-09 02:03:17,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060378188] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:03:17,505 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:03:17,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2025-03-09 02:03:17,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571597586] [2025-03-09 02:03:17,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:03:17,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-09 02:03:17,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:03:17,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-09 02:03:17,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2025-03-09 02:03:17,511 INFO L87 Difference]: Start difference. First operand 745 states and 790 transitions. Second operand has 96 states, 95 states have (on average 14.631578947368421) internal successors, (1390), 96 states have internal predecessors, (1390), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-09 02:03:37,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:03:37,719 INFO L93 Difference]: Finished difference Result 1514 states and 1654 transitions. [2025-03-09 02:03:37,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-03-09 02:03:37,722 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 14.631578947368421) internal successors, (1390), 96 states have internal predecessors, (1390), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 924 [2025-03-09 02:03:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:03:37,728 INFO L225 Difference]: With dead ends: 1514 [2025-03-09 02:03:37,728 INFO L226 Difference]: Without dead ends: 1513 [2025-03-09 02:03:37,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1892 GetRequests, 1752 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2025-03-09 02:03:37,735 INFO L435 NwaCegarLoop]: 335 mSDtfsCounter, 530 mSDsluCounter, 13488 mSDsCounter, 0 mSdLazyCounter, 24763 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 13823 SdHoareTripleChecker+Invalid, 24811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 24763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:03:37,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 13823 Invalid, 24811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 24763 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2025-03-09 02:03:37,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2025-03-09 02:03:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2025-03-09 02:03:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1417 states have (on average 1.0007057163020465) internal successors, (1418), 1417 states have internal predecessors, (1418), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-09 02:03:37,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1606 transitions. [2025-03-09 02:03:37,796 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1606 transitions. Word has length 924 [2025-03-09 02:03:37,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:03:37,797 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 1606 transitions. [2025-03-09 02:03:37,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 14.631578947368421) internal successors, (1390), 96 states have internal predecessors, (1390), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-09 02:03:37,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1606 transitions. [2025-03-09 02:03:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1885 [2025-03-09 02:03:37,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:03:37,819 INFO L218 NwaCegarLoop]: trace histogram [95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1] [2025-03-09 02:03:37,828 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 02:03:38,020 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,SelfDestructingSolverStorable21 [2025-03-09 02:03:38,020 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-09 02:03:38,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:03:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1018396163, now seen corresponding path program 6 times [2025-03-09 02:03:38,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:03:38,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429563874] [2025-03-09 02:03:38,021 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 02:03:38,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:03:38,056 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1884 statements into 95 equivalence classes. [2025-03-09 02:03:38,861 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) and asserted 1884 of 1884 statements. [2025-03-09 02:03:38,861 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2025-03-09 02:03:38,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:03:38,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486225696] [2025-03-09 02:03:38,869 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-09 02:03:38,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:03:38,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:03:38,871 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 02:03:38,873 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 02:03:38,946 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1884 statements into 95 equivalence classes.