./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.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 07777b75ead5ca82f9efe60a3e787c338f0f6d537d953087b187c05d2a960d83 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:32:09,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:32:09,390 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:32:09,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:32:09,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:32:09,409 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:32:09,410 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:32:09,410 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:32:09,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:32:09,410 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:32:09,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:32:09,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:32:09,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:32:09,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:32:09,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:32:09,412 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:32:09,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:32:09,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:32:09,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:32:09,413 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 -> 07777b75ead5ca82f9efe60a3e787c338f0f6d537d953087b187c05d2a960d83 [2025-03-17 15:32:09,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:32:09,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:32:09,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:32:09,660 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:32:09,660 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:32:09,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c [2025-03-17 15:32:10,785 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b6d7e36b/7584db9bbd684854bfcf51f54c0a2cbc/FLAGabd018bc7 [2025-03-17 15:32:11,045 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:32:11,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c [2025-03-17 15:32:11,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b6d7e36b/7584db9bbd684854bfcf51f54c0a2cbc/FLAGabd018bc7 [2025-03-17 15:32:11,068 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b6d7e36b/7584db9bbd684854bfcf51f54c0a2cbc [2025-03-17 15:32:11,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:32:11,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:32:11,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:32:11,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:32:11,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:32:11,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137c8116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11, skipping insertion in model container [2025-03-17 15:32:11,079 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:32:11,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:32:11,214 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:32:11,227 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:32:11,240 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:32:11,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11 WrapperNode [2025-03-17 15:32:11,241 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:32:11,242 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:32:11,242 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:32:11,242 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:32:11,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,276 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2025-03-17 15:32:11,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:32:11,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:32:11,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:32:11,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:32:11,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,287 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,302 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-17 15:32:11,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,308 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,312 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:32:11,316 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:32:11,316 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:32:11,316 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:32:11,321 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (1/1) ... [2025-03-17 15:32:11,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:32:11,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:11,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 15:32:11,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 15:32:11,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:32:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:32:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:32:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:32:11,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:32:11,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:32:11,403 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:32:11,405 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:32:11,660 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2025-03-17 15:32:11,660 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:32:11,668 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:32:11,668 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:32:11,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:32:11 BoogieIcfgContainer [2025-03-17 15:32:11,668 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:32:11,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:32:11,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:32:11,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:32:11,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:32:11" (1/3) ... [2025-03-17 15:32:11,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79606d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:32:11, skipping insertion in model container [2025-03-17 15:32:11,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:32:11" (2/3) ... [2025-03-17 15:32:11,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79606d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:32:11, skipping insertion in model container [2025-03-17 15:32:11,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:32:11" (3/3) ... [2025-03-17 15:32:11,679 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound50.c [2025-03-17 15:32:11,689 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:32:11,690 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_unwindbound50.c that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 44 error locations. [2025-03-17 15:32:11,724 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:32:11,731 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;@4b621a7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:32:11,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-03-17 15:32:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 58 states have (on average 1.896551724137931) internal successors, (110), 102 states have internal predecessors, (110), 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) [2025-03-17 15:32:11,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 15:32:11,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:11,737 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 15:32:11,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:11,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:11,740 INFO L85 PathProgramCache]: Analyzing trace with hash 130677160, now seen corresponding path program 1 times [2025-03-17 15:32:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:11,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524042262] [2025-03-17 15:32:11,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:11,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:11,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:32:11,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:32:11,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:11,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:11,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:11,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524042262] [2025-03-17 15:32:11,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524042262] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:11,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:11,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:32:11,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560034184] [2025-03-17 15:32:11,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:11,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 15:32:11,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:11,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 15:32:11,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:32:11,862 INFO L87 Difference]: Start difference. First operand has 107 states, 58 states have (on average 1.896551724137931) internal successors, (110), 102 states have internal predecessors, (110), 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:11,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:11,885 INFO L93 Difference]: Finished difference Result 212 states and 232 transitions. [2025-03-17 15:32:11,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 15:32:11,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-03-17 15:32:11,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:11,892 INFO L225 Difference]: With dead ends: 212 [2025-03-17 15:32:11,893 INFO L226 Difference]: Without dead ends: 103 [2025-03-17 15:32:11,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 15:32:11,898 INFO L435 NwaCegarLoop]: 113 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, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:11,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:32:11,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-17 15:32:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2025-03-17 15:32:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 99 states have internal predecessors, (104), 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) [2025-03-17 15:32:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2025-03-17 15:32:11,937 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 5 [2025-03-17 15:32:11,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:11,937 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2025-03-17 15:32:11,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2025-03-17 15:32:11,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-03-17 15:32:11,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:11,938 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 15:32:11,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:32:11,939 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:11,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:11,940 INFO L85 PathProgramCache]: Analyzing trace with hash 130706951, now seen corresponding path program 1 times [2025-03-17 15:32:11,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:11,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140302463] [2025-03-17 15:32:11,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:11,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:11,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 15:32:11,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 15:32:11,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:11,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:12,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140302463] [2025-03-17 15:32:12,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140302463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:12,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:12,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:32:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445658616] [2025-03-17 15:32:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:12,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:12,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:12,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:12,037 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) 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) [2025-03-17 15:32:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:12,092 INFO L93 Difference]: Finished difference Result 122 states and 127 transitions. [2025-03-17 15:32:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:32:12,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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 [2025-03-17 15:32:12,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:12,093 INFO L225 Difference]: With dead ends: 122 [2025-03-17 15:32:12,093 INFO L226 Difference]: Without dead ends: 107 [2025-03-17 15:32:12,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:12,094 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:12,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 306 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:32:12,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2025-03-17 15:32:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2025-03-17 15:32:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.8) internal successors, (108), 103 states have internal predecessors, (108), 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) [2025-03-17 15:32:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2025-03-17 15:32:12,103 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 5 [2025-03-17 15:32:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:12,103 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2025-03-17 15:32:12,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) 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) [2025-03-17 15:32:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2025-03-17 15:32:12,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-17 15:32:12,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:12,104 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:12,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:32:12,104 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:12,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:12,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1644492773, now seen corresponding path program 1 times [2025-03-17 15:32:12,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:12,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279663781] [2025-03-17 15:32:12,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:12,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:12,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 15:32:12,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 15:32:12,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:12,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:12,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1091138016] [2025-03-17 15:32:12,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:12,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:12,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:12,126 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:12,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 15:32:12,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 15:32:12,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 15:32:12,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:12,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:12,167 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:32:12,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:12,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:12,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:12,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279663781] [2025-03-17 15:32:12,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:12,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091138016] [2025-03-17 15:32:12,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091138016] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:12,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:12,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:12,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991424929] [2025-03-17 15:32:12,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:12,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:32:12,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:12,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:32:12,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:12,304 INFO L87 Difference]: Start difference. First operand 107 states and 112 transitions. Second operand has 5 states, 4 states have (on average 2.0) 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) [2025-03-17 15:32:12,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:12,554 INFO L93 Difference]: Finished difference Result 146 states and 167 transitions. [2025-03-17 15:32:12,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:32:12,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) 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 [2025-03-17 15:32:12,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:12,555 INFO L225 Difference]: With dead ends: 146 [2025-03-17 15:32:12,555 INFO L226 Difference]: Without dead ends: 135 [2025-03-17 15:32:12,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:12,556 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 161 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:12,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 153 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2025-03-17 15:32:12,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 130. [2025-03-17 15:32:12,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 83 states have (on average 1.6987951807228916) internal successors, (141), 124 states have internal predecessors, (141), 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) [2025-03-17 15:32:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 149 transitions. [2025-03-17 15:32:12,568 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 149 transitions. Word has length 8 [2025-03-17 15:32:12,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:12,568 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 149 transitions. [2025-03-17 15:32:12,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) 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) [2025-03-17 15:32:12,568 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 149 transitions. [2025-03-17 15:32:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 15:32:12,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:12,569 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:12,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 15:32:12,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:12,770 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:12,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:12,772 INFO L85 PathProgramCache]: Analyzing trace with hash 560331651, now seen corresponding path program 1 times [2025-03-17 15:32:12,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:12,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068500324] [2025-03-17 15:32:12,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:12,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:12,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:32:12,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:32:12,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:12,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:12,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728994998] [2025-03-17 15:32:12,789 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:12,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:12,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:12,791 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:12,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 15:32:12,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:32:12,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:32:12,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:12,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:12,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:32:12,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:12,920 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:12,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:12,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068500324] [2025-03-17 15:32:12,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:12,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728994998] [2025-03-17 15:32:12,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728994998] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:12,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:12,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:12,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659110852] [2025-03-17 15:32:12,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:12,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:32:12,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:12,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:32:12,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:12,921 INFO L87 Difference]: Start difference. First operand 130 states and 149 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:13,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:13,160 INFO L93 Difference]: Finished difference Result 181 states and 221 transitions. [2025-03-17 15:32:13,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:32:13,161 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2025-03-17 15:32:13,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:13,162 INFO L225 Difference]: With dead ends: 181 [2025-03-17 15:32:13,162 INFO L226 Difference]: Without dead ends: 163 [2025-03-17 15:32:13,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:13,164 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 177 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:13,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 136 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-17 15:32:13,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 156. [2025-03-17 15:32:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.6363636363636365) internal successors, (180), 149 states have internal predecessors, (180), 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) [2025-03-17 15:32:13,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 190 transitions. [2025-03-17 15:32:13,181 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 190 transitions. Word has length 9 [2025-03-17 15:32:13,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:13,181 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 190 transitions. [2025-03-17 15:32:13,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:13,181 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 190 transitions. [2025-03-17 15:32:13,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 15:32:13,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:13,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:13,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:13,381 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,SelfDestructingSolverStorable3 [2025-03-17 15:32:13,382 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:13,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:13,382 INFO L85 PathProgramCache]: Analyzing trace with hash 190412057, now seen corresponding path program 1 times [2025-03-17 15:32:13,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:13,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762645414] [2025-03-17 15:32:13,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:13,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:13,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 15:32:13,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 15:32:13,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:13,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:13,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155236911] [2025-03-17 15:32:13,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:13,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:13,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:13,392 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:13,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 15:32:13,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 15:32:13,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 15:32:13,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:13,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:13,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 15:32:13,419 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:13,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:13,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:13,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:13,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762645414] [2025-03-17 15:32:13,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:13,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155236911] [2025-03-17 15:32:13,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155236911] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:13,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:13,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:13,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929048248] [2025-03-17 15:32:13,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:13,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:32:13,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:13,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:32:13,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:13,527 INFO L87 Difference]: Start difference. First operand 156 states and 190 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:13,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:13,710 INFO L93 Difference]: Finished difference Result 164 states and 197 transitions. [2025-03-17 15:32:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:32:13,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2025-03-17 15:32:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:13,712 INFO L225 Difference]: With dead ends: 164 [2025-03-17 15:32:13,712 INFO L226 Difference]: Without dead ends: 163 [2025-03-17 15:32:13,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:13,712 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 145 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:13,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 160 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:13,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2025-03-17 15:32:13,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 156. [2025-03-17 15:32:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.6272727272727272) internal successors, (179), 149 states have internal predecessors, (179), 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) [2025-03-17 15:32:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 189 transitions. [2025-03-17 15:32:13,725 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 189 transitions. Word has length 10 [2025-03-17 15:32:13,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:13,726 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 189 transitions. [2025-03-17 15:32:13,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:13,726 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 189 transitions. [2025-03-17 15:32:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 15:32:13,726 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:13,726 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:13,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:13,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:13,927 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:13,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:13,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1607806529, now seen corresponding path program 1 times [2025-03-17 15:32:13,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:13,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034659928] [2025-03-17 15:32:13,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:13,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 15:32:13,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 15:32:13,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:13,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:13,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1804952726] [2025-03-17 15:32:13,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:13,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:13,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:13,941 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:13,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 15:32:13,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 15:32:13,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 15:32:13,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:13,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:13,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:32:13,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:14,076 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:14,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034659928] [2025-03-17 15:32:14,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:14,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804952726] [2025-03-17 15:32:14,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804952726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:14,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:14,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:14,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163281213] [2025-03-17 15:32:14,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:14,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:32:14,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:14,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:32:14,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:14,077 INFO L87 Difference]: Start difference. First operand 156 states and 189 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:14,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:14,309 INFO L93 Difference]: Finished difference Result 161 states and 189 transitions. [2025-03-17 15:32:14,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:32:14,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-17 15:32:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:14,310 INFO L225 Difference]: With dead ends: 161 [2025-03-17 15:32:14,310 INFO L226 Difference]: Without dead ends: 158 [2025-03-17 15:32:14,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:14,311 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 167 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:14,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 146 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:14,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-03-17 15:32:14,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2025-03-17 15:32:14,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.5909090909090908) internal successors, (175), 149 states have internal predecessors, (175), 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) [2025-03-17 15:32:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2025-03-17 15:32:14,324 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 11 [2025-03-17 15:32:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:14,324 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2025-03-17 15:32:14,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:14,324 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2025-03-17 15:32:14,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 15:32:14,324 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:14,324 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:14,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:14,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:14,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:14,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:14,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1697605097, now seen corresponding path program 1 times [2025-03-17 15:32:14,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:14,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552361770] [2025-03-17 15:32:14,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:14,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:14,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 15:32:14,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 15:32:14,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:14,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:14,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:14,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552361770] [2025-03-17 15:32:14,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552361770] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:14,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:14,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:14,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056990191] [2025-03-17 15:32:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:14,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:14,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:14,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:14,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:14,593 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:14,814 INFO L93 Difference]: Finished difference Result 259 states and 305 transitions. [2025-03-17 15:32:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:14,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2025-03-17 15:32:14,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:14,815 INFO L225 Difference]: With dead ends: 259 [2025-03-17 15:32:14,815 INFO L226 Difference]: Without dead ends: 258 [2025-03-17 15:32:14,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:14,816 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 96 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:14,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 170 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-03-17 15:32:14,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 180. [2025-03-17 15:32:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 133 states have (on average 1.6015037593984962) internal successors, (213), 172 states have internal predecessors, (213), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:32:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 225 transitions. [2025-03-17 15:32:14,829 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 225 transitions. Word has length 12 [2025-03-17 15:32:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:14,829 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 225 transitions. [2025-03-17 15:32:14,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 225 transitions. [2025-03-17 15:32:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 15:32:14,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:14,829 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:14,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 15:32:14,829 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:14,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:14,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1086150401, now seen corresponding path program 1 times [2025-03-17 15:32:14,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:14,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609075522] [2025-03-17 15:32:14,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:14,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:14,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 15:32:14,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 15:32:14,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:14,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:14,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:14,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:14,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609075522] [2025-03-17 15:32:14,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609075522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:14,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:14,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:14,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267714660] [2025-03-17 15:32:14,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:14,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:14,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:14,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:14,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:14,893 INFO L87 Difference]: Start difference. First operand 180 states and 225 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:15,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:15,190 INFO L93 Difference]: Finished difference Result 259 states and 303 transitions. [2025-03-17 15:32:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:15,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2025-03-17 15:32:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:15,192 INFO L225 Difference]: With dead ends: 259 [2025-03-17 15:32:15,192 INFO L226 Difference]: Without dead ends: 258 [2025-03-17 15:32:15,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:15,192 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 94 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:15,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 160 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-03-17 15:32:15,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 180. [2025-03-17 15:32:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 133 states have (on average 1.586466165413534) internal successors, (211), 172 states have internal predecessors, (211), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:32:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2025-03-17 15:32:15,202 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 223 transitions. Word has length 13 [2025-03-17 15:32:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:15,202 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 223 transitions. [2025-03-17 15:32:15,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:32:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 223 transitions. [2025-03-17 15:32:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 15:32:15,203 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:15,203 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, 1, 1, 1, 1, 1] [2025-03-17 15:32:15,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 15:32:15,203 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:15,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:15,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1428355351, now seen corresponding path program 1 times [2025-03-17 15:32:15,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:15,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823208937] [2025-03-17 15:32:15,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:15,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:15,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:32:15,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:32:15,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:15,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:15,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:15,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823208937] [2025-03-17 15:32:15,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823208937] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:15,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:15,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:32:15,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858788656] [2025-03-17 15:32:15,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:15,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:32:15,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:15,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:32:15,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:32:15,281 INFO L87 Difference]: Start difference. First operand 180 states and 223 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2025-03-17 15:32:15,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:15,359 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions. [2025-03-17 15:32:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:32:15,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 27 [2025-03-17 15:32:15,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:15,360 INFO L225 Difference]: With dead ends: 258 [2025-03-17 15:32:15,361 INFO L226 Difference]: Without dead ends: 256 [2025-03-17 15:32:15,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:32:15,361 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 57 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:15,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 147 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:32:15,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2025-03-17 15:32:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 229. [2025-03-17 15:32:15,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 181 states have (on average 1.6574585635359116) internal successors, (300), 220 states have internal predecessors, (300), 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) [2025-03-17 15:32:15,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 314 transitions. [2025-03-17 15:32:15,372 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 314 transitions. Word has length 27 [2025-03-17 15:32:15,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:15,372 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 314 transitions. [2025-03-17 15:32:15,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2025-03-17 15:32:15,372 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 314 transitions. [2025-03-17 15:32:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-17 15:32:15,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:15,372 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, 1, 1, 1, 1, 1] [2025-03-17 15:32:15,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 15:32:15,372 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:15,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:15,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1507508051, now seen corresponding path program 1 times [2025-03-17 15:32:15,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:15,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852268034] [2025-03-17 15:32:15,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:15,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:15,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:32:15,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:32:15,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:15,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:15,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [914998901] [2025-03-17 15:32:15,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:15,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:15,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:15,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 15:32:15,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-17 15:32:15,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-17 15:32:15,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:15,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:15,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:32:15,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:15,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:15,506 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:15,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:15,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852268034] [2025-03-17 15:32:15,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:15,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914998901] [2025-03-17 15:32:15,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914998901] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:15,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:15,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:15,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242048151] [2025-03-17 15:32:15,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:15,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:15,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:15,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:15,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:15,508 INFO L87 Difference]: Start difference. First operand 229 states and 314 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2025-03-17 15:32:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:15,656 INFO L93 Difference]: Finished difference Result 281 states and 386 transitions. [2025-03-17 15:32:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:15,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 27 [2025-03-17 15:32:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:15,658 INFO L225 Difference]: With dead ends: 281 [2025-03-17 15:32:15,658 INFO L226 Difference]: Without dead ends: 277 [2025-03-17 15:32:15,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:15,658 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 160 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:15,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 110 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:32:15,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2025-03-17 15:32:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 257. [2025-03-17 15:32:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 208 states have (on average 1.6586538461538463) internal successors, (345), 247 states have internal predecessors, (345), 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) [2025-03-17 15:32:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 361 transitions. [2025-03-17 15:32:15,666 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 361 transitions. Word has length 27 [2025-03-17 15:32:15,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:15,666 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 361 transitions. [2025-03-17 15:32:15,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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) [2025-03-17 15:32:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 361 transitions. [2025-03-17 15:32:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-17 15:32:15,666 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:15,667 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:15,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:15,867 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,SelfDestructingSolverStorable9 [2025-03-17 15:32:15,867 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:15,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:15,868 INFO L85 PathProgramCache]: Analyzing trace with hash -576044591, now seen corresponding path program 1 times [2025-03-17 15:32:15,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:15,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735229502] [2025-03-17 15:32:15,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:15,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:15,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:32:15,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:32:15,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:15,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:15,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:15,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:15,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735229502] [2025-03-17 15:32:15,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735229502] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:15,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:15,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759875245] [2025-03-17 15:32:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:15,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:15,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:15,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:15,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:15,931 INFO L87 Difference]: Start difference. First operand 257 states and 361 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2025-03-17 15:32:16,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:16,042 INFO L93 Difference]: Finished difference Result 341 states and 453 transitions. [2025-03-17 15:32:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:16,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 [2025-03-17 15:32:16,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:16,044 INFO L225 Difference]: With dead ends: 341 [2025-03-17 15:32:16,044 INFO L226 Difference]: Without dead ends: 340 [2025-03-17 15:32:16,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:16,045 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 65 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:16,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 214 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:32:16,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-17 15:32:16,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 267. [2025-03-17 15:32:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 218 states have (on average 1.651376146788991) internal successors, (360), 257 states have internal predecessors, (360), 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) [2025-03-17 15:32:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 376 transitions. [2025-03-17 15:32:16,056 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 376 transitions. Word has length 28 [2025-03-17 15:32:16,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:16,056 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 376 transitions. [2025-03-17 15:32:16,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-17 15:32:16,056 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 376 transitions. [2025-03-17 15:32:16,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-17 15:32:16,057 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:16,057 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:16,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 15:32:16,057 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:16,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:16,058 INFO L85 PathProgramCache]: Analyzing trace with hash -511890666, now seen corresponding path program 1 times [2025-03-17 15:32:16,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:16,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929097988] [2025-03-17 15:32:16,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:16,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:16,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:32:16,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:32:16,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:16,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:16,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982625145] [2025-03-17 15:32:16,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:16,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:16,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:16,079 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:16,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 15:32:16,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-17 15:32:16,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-17 15:32:16,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:16,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:16,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:32:16,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:16,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:16,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:16,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:16,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929097988] [2025-03-17 15:32:16,172 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:16,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982625145] [2025-03-17 15:32:16,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982625145] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:16,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:16,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:16,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100286460] [2025-03-17 15:32:16,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:16,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:16,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:16,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:16,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:16,173 INFO L87 Difference]: Start difference. First operand 267 states and 376 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2025-03-17 15:32:16,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:16,318 INFO L93 Difference]: Finished difference Result 284 states and 383 transitions. [2025-03-17 15:32:16,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:16,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 [2025-03-17 15:32:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:16,320 INFO L225 Difference]: With dead ends: 284 [2025-03-17 15:32:16,320 INFO L226 Difference]: Without dead ends: 280 [2025-03-17 15:32:16,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:32:16,322 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 213 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:16,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 76 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:32:16,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2025-03-17 15:32:16,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 267. [2025-03-17 15:32:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 218 states have (on average 1.628440366972477) internal successors, (355), 257 states have internal predecessors, (355), 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) [2025-03-17 15:32:16,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 371 transitions. [2025-03-17 15:32:16,329 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 371 transitions. Word has length 28 [2025-03-17 15:32:16,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:16,330 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 371 transitions. [2025-03-17 15:32:16,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-17 15:32:16,330 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 371 transitions. [2025-03-17 15:32:16,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 15:32:16,331 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:16,331 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:16,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:16,531 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 [2025-03-17 15:32:16,532 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:16,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:16,532 INFO L85 PathProgramCache]: Analyzing trace with hash -677513144, now seen corresponding path program 1 times [2025-03-17 15:32:16,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:16,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327019102] [2025-03-17 15:32:16,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:16,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:16,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 15:32:16,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 15:32:16,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:16,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:16,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:16,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327019102] [2025-03-17 15:32:16,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327019102] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:16,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:16,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:16,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620242263] [2025-03-17 15:32:16,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:16,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:16,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:16,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:16,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:16,627 INFO L87 Difference]: Start difference. First operand 267 states and 371 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 15:32:16,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:16,933 INFO L93 Difference]: Finished difference Result 341 states and 445 transitions. [2025-03-17 15:32:16,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:16,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 29 [2025-03-17 15:32:16,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:16,935 INFO L225 Difference]: With dead ends: 341 [2025-03-17 15:32:16,935 INFO L226 Difference]: Without dead ends: 340 [2025-03-17 15:32:16,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:16,935 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 63 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:16,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 212 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:16,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-17 15:32:16,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 269. [2025-03-17 15:32:16,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 220 states have (on average 1.6227272727272728) internal successors, (357), 259 states have internal predecessors, (357), 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) [2025-03-17 15:32:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 373 transitions. [2025-03-17 15:32:16,942 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 373 transitions. Word has length 29 [2025-03-17 15:32:16,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:16,942 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 373 transitions. [2025-03-17 15:32:16,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 15:32:16,942 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 373 transitions. [2025-03-17 15:32:16,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 15:32:16,943 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:16,943 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:16,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 15:32:16,943 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:16,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:16,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1311258545, now seen corresponding path program 1 times [2025-03-17 15:32:16,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:16,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364457345] [2025-03-17 15:32:16,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:16,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 15:32:16,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 15:32:16,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:16,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:17,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:17,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:17,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364457345] [2025-03-17 15:32:17,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364457345] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:17,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:17,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:17,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717213671] [2025-03-17 15:32:17,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:17,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:17,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:17,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:17,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:17,001 INFO L87 Difference]: Start difference. First operand 269 states and 373 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 15:32:17,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:17,132 INFO L93 Difference]: Finished difference Result 341 states and 443 transitions. [2025-03-17 15:32:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 29 [2025-03-17 15:32:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:17,133 INFO L225 Difference]: With dead ends: 341 [2025-03-17 15:32:17,133 INFO L226 Difference]: Without dead ends: 340 [2025-03-17 15:32:17,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:17,134 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 63 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:17,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 230 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:32:17,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-17 15:32:17,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 278. [2025-03-17 15:32:17,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 229 states have (on average 1.6200873362445414) internal successors, (371), 268 states have internal predecessors, (371), 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) [2025-03-17 15:32:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 387 transitions. [2025-03-17 15:32:17,143 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 387 transitions. Word has length 29 [2025-03-17 15:32:17,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:17,143 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 387 transitions. [2025-03-17 15:32:17,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-17 15:32:17,143 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 387 transitions. [2025-03-17 15:32:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 15:32:17,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:17,145 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:17,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 15:32:17,145 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:17,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:17,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1362791016, now seen corresponding path program 1 times [2025-03-17 15:32:17,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:17,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460303842] [2025-03-17 15:32:17,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:17,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:17,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 15:32:17,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 15:32:17,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:17,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:17,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:17,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460303842] [2025-03-17 15:32:17,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460303842] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:17,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:17,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:32:17,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672050447] [2025-03-17 15:32:17,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:17,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:32:17,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:17,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:32:17,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:17,217 INFO L87 Difference]: Start difference. First operand 278 states and 387 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2025-03-17 15:32:17,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:17,504 INFO L93 Difference]: Finished difference Result 389 states and 562 transitions. [2025-03-17 15:32:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:32:17,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 29 [2025-03-17 15:32:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:17,506 INFO L225 Difference]: With dead ends: 389 [2025-03-17 15:32:17,507 INFO L226 Difference]: Without dead ends: 387 [2025-03-17 15:32:17,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:32:17,509 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 280 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:17,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 99 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2025-03-17 15:32:17,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 284. [2025-03-17 15:32:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 235 states have (on average 1.6085106382978724) internal successors, (378), 274 states have internal predecessors, (378), 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) [2025-03-17 15:32:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 394 transitions. [2025-03-17 15:32:17,518 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 394 transitions. Word has length 29 [2025-03-17 15:32:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:17,519 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 394 transitions. [2025-03-17 15:32:17,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2025-03-17 15:32:17,519 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 394 transitions. [2025-03-17 15:32:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:32:17,519 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:17,519 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:17,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 15:32:17,520 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:17,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1893244212, now seen corresponding path program 1 times [2025-03-17 15:32:17,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:17,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645625846] [2025-03-17 15:32:17,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:17,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:32:17,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:32:17,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:17,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:17,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:17,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645625846] [2025-03-17 15:32:17,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645625846] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:32:17,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724961754] [2025-03-17 15:32:17,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:17,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:17,609 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:17,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 15:32:17,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:32:17,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:32:17,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:17,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:17,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:32:17,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:17,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:17,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724961754] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:17,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:32:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-03-17 15:32:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425387278] [2025-03-17 15:32:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:32:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:17,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:32:17,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:32:17,695 INFO L87 Difference]: Start difference. First operand 284 states and 394 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2025-03-17 15:32:17,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:17,730 INFO L93 Difference]: Finished difference Result 284 states and 394 transitions. [2025-03-17 15:32:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:32:17,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 30 [2025-03-17 15:32:17,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:17,731 INFO L225 Difference]: With dead ends: 284 [2025-03-17 15:32:17,731 INFO L226 Difference]: Without dead ends: 283 [2025-03-17 15:32:17,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:32:17,732 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 82 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:17,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 291 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:32:17,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2025-03-17 15:32:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2025-03-17 15:32:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 235 states have (on average 1.5872340425531914) internal successors, (373), 273 states have internal predecessors, (373), 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) [2025-03-17 15:32:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 389 transitions. [2025-03-17 15:32:17,739 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 389 transitions. Word has length 30 [2025-03-17 15:32:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:17,740 INFO L471 AbstractCegarLoop]: Abstraction has 283 states and 389 transitions. [2025-03-17 15:32:17,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2025-03-17 15:32:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 389 transitions. [2025-03-17 15:32:17,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:32:17,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:17,740 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:17,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:17,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:17,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:17,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1994309236, now seen corresponding path program 1 times [2025-03-17 15:32:17,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:17,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483949785] [2025-03-17 15:32:17,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:17,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:17,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:32:17,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:32:17,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:17,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:18,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:18,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:18,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483949785] [2025-03-17 15:32:18,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483949785] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:18,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:18,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:18,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829528142] [2025-03-17 15:32:18,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:18,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:18,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:18,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:18,009 INFO L87 Difference]: Start difference. First operand 283 states and 389 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2025-03-17 15:32:18,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:18,369 INFO L93 Difference]: Finished difference Result 339 states and 434 transitions. [2025-03-17 15:32:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:18,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 30 [2025-03-17 15:32:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:18,371 INFO L225 Difference]: With dead ends: 339 [2025-03-17 15:32:18,371 INFO L226 Difference]: Without dead ends: 338 [2025-03-17 15:32:18,372 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:18,372 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 61 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:18,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 211 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:18,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-03-17 15:32:18,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 285. [2025-03-17 15:32:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 237 states have (on average 1.5822784810126582) internal successors, (375), 275 states have internal predecessors, (375), 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) [2025-03-17 15:32:18,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 391 transitions. [2025-03-17 15:32:18,382 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 391 transitions. Word has length 30 [2025-03-17 15:32:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:18,382 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 391 transitions. [2025-03-17 15:32:18,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2025-03-17 15:32:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 391 transitions. [2025-03-17 15:32:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-17 15:32:18,382 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:18,383 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:18,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 15:32:18,383 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:18,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:18,384 INFO L85 PathProgramCache]: Analyzing trace with hash -703151435, now seen corresponding path program 1 times [2025-03-17 15:32:18,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:18,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73071222] [2025-03-17 15:32:18,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:18,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:18,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 15:32:18,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 15:32:18,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:18,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:18,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:18,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:18,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73071222] [2025-03-17 15:32:18,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73071222] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:18,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:18,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:32:18,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461534768] [2025-03-17 15:32:18,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:18,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:32:18,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:18,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:32:18,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:18,462 INFO L87 Difference]: Start difference. First operand 285 states and 391 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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) [2025-03-17 15:32:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:18,659 INFO L93 Difference]: Finished difference Result 293 states and 398 transitions. [2025-03-17 15:32:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:32:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 30 [2025-03-17 15:32:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:18,661 INFO L225 Difference]: With dead ends: 293 [2025-03-17 15:32:18,661 INFO L226 Difference]: Without dead ends: 291 [2025-03-17 15:32:18,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:32:18,662 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 239 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:18,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 77 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:18,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2025-03-17 15:32:18,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 285. [2025-03-17 15:32:18,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 237 states have (on average 1.5696202531645569) internal successors, (372), 275 states have internal predecessors, (372), 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) [2025-03-17 15:32:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2025-03-17 15:32:18,669 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 30 [2025-03-17 15:32:18,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:18,670 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2025-03-17 15:32:18,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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) [2025-03-17 15:32:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2025-03-17 15:32:18,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-17 15:32:18,670 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:18,670 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:18,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 15:32:18,670 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:18,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:18,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1438971504, now seen corresponding path program 1 times [2025-03-17 15:32:18,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:18,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66746341] [2025-03-17 15:32:18,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:18,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:32:18,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:32:18,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:18,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:18,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:18,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66746341] [2025-03-17 15:32:18,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66746341] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:32:18,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836830577] [2025-03-17 15:32:18,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:18,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:18,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:18,739 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:18,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 15:32:18,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-17 15:32:18,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-17 15:32:18,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:18,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:18,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:32:18,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:18,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:18,809 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836830577] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:18,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:32:18,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12 [2025-03-17 15:32:18,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393319804] [2025-03-17 15:32:18,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:18,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:32:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:18,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:32:18,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:32:18,868 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:32:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:18,988 INFO L93 Difference]: Finished difference Result 772 states and 1047 transitions. [2025-03-17 15:32:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:32:18,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2025-03-17 15:32:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:18,991 INFO L225 Difference]: With dead ends: 772 [2025-03-17 15:32:18,991 INFO L226 Difference]: Without dead ends: 756 [2025-03-17 15:32:18,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2025-03-17 15:32:18,992 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 220 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:18,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 972 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:32:18,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2025-03-17 15:32:19,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 670. [2025-03-17 15:32:19,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 606 states have (on average 1.5907590759075907) internal successors, (964), 648 states have internal predecessors, (964), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 17 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-17 15:32:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1006 transitions. [2025-03-17 15:32:19,013 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1006 transitions. Word has length 31 [2025-03-17 15:32:19,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:19,013 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 1006 transitions. [2025-03-17 15:32:19,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.416666666666667) internal successors, (65), 13 states have internal predecessors, (65), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 15:32:19,014 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1006 transitions. [2025-03-17 15:32:19,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-17 15:32:19,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:19,014 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:19,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 15:32:19,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:19,215 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:19,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:19,215 INFO L85 PathProgramCache]: Analyzing trace with hash 127856078, now seen corresponding path program 1 times [2025-03-17 15:32:19,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:19,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362335443] [2025-03-17 15:32:19,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:19,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:19,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:32:19,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:32:19,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:19,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:19,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1824142220] [2025-03-17 15:32:19,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:19,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:19,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:19,230 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:19,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 15:32:19,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:32:19,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:32:19,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:19,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:19,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 15:32:19,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:19,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:20,224 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:20,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362335443] [2025-03-17 15:32:20,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:20,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824142220] [2025-03-17 15:32:20,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824142220] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:20,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:32:20,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2025-03-17 15:32:20,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478923450] [2025-03-17 15:32:20,225 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:20,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 15:32:20,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:20,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 15:32:20,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:32:20,226 INFO L87 Difference]: Start difference. First operand 670 states and 1006 transitions. Second operand has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 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) [2025-03-17 15:32:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:22,240 INFO L93 Difference]: Finished difference Result 1196 states and 1823 transitions. [2025-03-17 15:32:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-17 15:32:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 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 33 [2025-03-17 15:32:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:22,246 INFO L225 Difference]: With dead ends: 1196 [2025-03-17 15:32:22,248 INFO L226 Difference]: Without dead ends: 1152 [2025-03-17 15:32:22,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=322, Invalid=670, Unknown=0, NotChecked=0, Total=992 [2025-03-17 15:32:22,251 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 692 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:22,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 156 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-17 15:32:22,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2025-03-17 15:32:22,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 821. [2025-03-17 15:32:22,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 755 states have (on average 1.5152317880794701) internal successors, (1144), 795 states have internal predecessors, (1144), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-17 15:32:22,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1192 transitions. [2025-03-17 15:32:22,312 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1192 transitions. Word has length 33 [2025-03-17 15:32:22,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:22,312 INFO L471 AbstractCegarLoop]: Abstraction has 821 states and 1192 transitions. [2025-03-17 15:32:22,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.214285714285714) internal successors, (59), 15 states have internal predecessors, (59), 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) [2025-03-17 15:32:22,313 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1192 transitions. [2025-03-17 15:32:22,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-17 15:32:22,313 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:22,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:22,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:22,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:22,514 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:22,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:22,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1028870748, now seen corresponding path program 1 times [2025-03-17 15:32:22,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:22,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079222416] [2025-03-17 15:32:22,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:22,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:22,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:32:22,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:32:22,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:22,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:22,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1032372820] [2025-03-17 15:32:22,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:22,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:22,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:22,543 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:22,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 15:32:22,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-17 15:32:22,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-17 15:32:22,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:22,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:22,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:32:22,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:22,732 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:22,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:22,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079222416] [2025-03-17 15:32:22,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:22,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032372820] [2025-03-17 15:32:22,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032372820] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:22,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:22,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:32:22,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102722684] [2025-03-17 15:32:22,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:22,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:32:22,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:22,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:32:22,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:22,734 INFO L87 Difference]: Start difference. First operand 821 states and 1192 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-03-17 15:32:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:23,203 INFO L93 Difference]: Finished difference Result 966 states and 1410 transitions. [2025-03-17 15:32:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:32:23,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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 33 [2025-03-17 15:32:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:23,207 INFO L225 Difference]: With dead ends: 966 [2025-03-17 15:32:23,207 INFO L226 Difference]: Without dead ends: 959 [2025-03-17 15:32:23,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:32:23,209 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 233 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:23,209 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 99 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:32:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2025-03-17 15:32:23,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 822. [2025-03-17 15:32:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 757 states have (on average 1.4980184940554822) internal successors, (1134), 797 states have internal predecessors, (1134), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-17 15:32:23,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1180 transitions. [2025-03-17 15:32:23,248 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1180 transitions. Word has length 33 [2025-03-17 15:32:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:23,248 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1180 transitions. [2025-03-17 15:32:23,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 6 states have internal predecessors, (31), 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) [2025-03-17 15:32:23,248 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1180 transitions. [2025-03-17 15:32:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 15:32:23,249 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:23,249 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:23,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:23,449 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,SelfDestructingSolverStorable20 [2025-03-17 15:32:23,449 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:23,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:23,450 INFO L85 PathProgramCache]: Analyzing trace with hash -331428816, now seen corresponding path program 1 times [2025-03-17 15:32:23,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:23,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472292089] [2025-03-17 15:32:23,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:23,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:23,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:32:23,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:32:23,461 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:23,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:23,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2062331942] [2025-03-17 15:32:23,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:23,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:23,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:23,465 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:23,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 15:32:23,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:32:23,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:32:23,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:23,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:23,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-17 15:32:23,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:23,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:23,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:24,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:24,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:24,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472292089] [2025-03-17 15:32:24,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:24,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062331942] [2025-03-17 15:32:24,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062331942] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:24,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:32:24,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 14 [2025-03-17 15:32:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312212391] [2025-03-17 15:32:24,510 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:24,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 15:32:24,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:24,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 15:32:24,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2025-03-17 15:32:24,511 INFO L87 Difference]: Start difference. First operand 822 states and 1180 transitions. Second operand has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 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) [2025-03-17 15:32:26,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:26,535 INFO L93 Difference]: Finished difference Result 1215 states and 1779 transitions. [2025-03-17 15:32:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 15:32:26,536 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 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) Word has length 34 [2025-03-17 15:32:26,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:26,540 INFO L225 Difference]: With dead ends: 1215 [2025-03-17 15:32:26,541 INFO L226 Difference]: Without dead ends: 1175 [2025-03-17 15:32:26,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2025-03-17 15:32:26,542 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 623 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:26,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 164 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-17 15:32:26,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2025-03-17 15:32:26,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 887. [2025-03-17 15:32:26,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 823 states have (on average 1.4580801944106927) internal successors, (1200), 862 states have internal predecessors, (1200), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:26,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1244 transitions. [2025-03-17 15:32:26,589 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1244 transitions. Word has length 34 [2025-03-17 15:32:26,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:26,590 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1244 transitions. [2025-03-17 15:32:26,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.357142857142857) internal successors, (61), 15 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) [2025-03-17 15:32:26,590 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1244 transitions. [2025-03-17 15:32:26,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 15:32:26,590 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:26,590 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:26,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:26,791 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,SelfDestructingSolverStorable21 [2025-03-17 15:32:26,791 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:26,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:26,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1830222095, now seen corresponding path program 1 times [2025-03-17 15:32:26,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:26,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901600420] [2025-03-17 15:32:26,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:26,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:26,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:32:26,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:32:26,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:26,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:26,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949215757] [2025-03-17 15:32:26,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:26,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:26,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:26,806 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:26,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 15:32:26,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:32:26,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:32:26,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:26,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:26,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:32:26,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:26,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:26,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:26,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901600420] [2025-03-17 15:32:26,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:26,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949215757] [2025-03-17 15:32:26,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949215757] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:26,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:26,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:32:26,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989501855] [2025-03-17 15:32:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:26,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:32:26,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:26,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:32:26,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:32:26,961 INFO L87 Difference]: Start difference. First operand 887 states and 1244 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-17 15:32:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:27,294 INFO L93 Difference]: Finished difference Result 902 states and 1256 transitions. [2025-03-17 15:32:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:32:27,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 34 [2025-03-17 15:32:27,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:27,297 INFO L225 Difference]: With dead ends: 902 [2025-03-17 15:32:27,297 INFO L226 Difference]: Without dead ends: 897 [2025-03-17 15:32:27,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:32:27,297 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 239 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:27,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 94 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 897 states. [2025-03-17 15:32:27,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 897 to 881. [2025-03-17 15:32:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 881 states, 817 states have (on average 1.4332925336597306) internal successors, (1171), 856 states have internal predecessors, (1171), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:27,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1215 transitions. [2025-03-17 15:32:27,331 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1215 transitions. Word has length 34 [2025-03-17 15:32:27,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:27,331 INFO L471 AbstractCegarLoop]: Abstraction has 881 states and 1215 transitions. [2025-03-17 15:32:27,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2025-03-17 15:32:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1215 transitions. [2025-03-17 15:32:27,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-17 15:32:27,331 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:27,331 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:27,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 15:32:27,532 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,SelfDestructingSolverStorable22 [2025-03-17 15:32:27,532 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:27,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:27,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1684358644, now seen corresponding path program 1 times [2025-03-17 15:32:27,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:27,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858507983] [2025-03-17 15:32:27,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:27,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:27,537 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 15:32:27,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 15:32:27,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:27,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:27,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246444415] [2025-03-17 15:32:27,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:27,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:27,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:27,547 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:27,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 15:32:27,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 15:32:27,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 15:32:27,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:27,577 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:27,581 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:32:27,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:27,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:28,488 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:28,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:28,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858507983] [2025-03-17 15:32:28,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:28,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246444415] [2025-03-17 15:32:28,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246444415] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:32:28,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:32:28,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2025-03-17 15:32:28,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015304855] [2025-03-17 15:32:28,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:28,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:32:28,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:28,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:32:28,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:32:28,490 INFO L87 Difference]: Start difference. First operand 881 states and 1215 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 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) [2025-03-17 15:32:29,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:29,518 INFO L93 Difference]: Finished difference Result 900 states and 1235 transitions. [2025-03-17 15:32:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:32:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 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 35 [2025-03-17 15:32:29,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:29,524 INFO L225 Difference]: With dead ends: 900 [2025-03-17 15:32:29,524 INFO L226 Difference]: Without dead ends: 899 [2025-03-17 15:32:29,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:32:29,525 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 18 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:29,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 135 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-17 15:32:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2025-03-17 15:32:29,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 898. [2025-03-17 15:32:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 834 states have (on average 1.419664268585132) internal successors, (1184), 873 states have internal predecessors, (1184), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1228 transitions. [2025-03-17 15:32:29,565 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1228 transitions. Word has length 35 [2025-03-17 15:32:29,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:29,565 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 1228 transitions. [2025-03-17 15:32:29,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 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) [2025-03-17 15:32:29,566 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1228 transitions. [2025-03-17 15:32:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-17 15:32:29,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:29,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:29,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 15:32:29,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-17 15:32:29,767 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:29,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -902310078, now seen corresponding path program 1 times [2025-03-17 15:32:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:29,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016766960] [2025-03-17 15:32:29,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:29,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:29,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-17 15:32:29,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-17 15:32:29,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:29,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:29,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:29,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:29,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016766960] [2025-03-17 15:32:29,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016766960] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:29,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:29,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:29,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437896491] [2025-03-17 15:32:29,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:29,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:29,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:29,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:29,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:29,814 INFO L87 Difference]: Start difference. First operand 898 states and 1228 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2025-03-17 15:32:30,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:30,056 INFO L93 Difference]: Finished difference Result 938 states and 1270 transitions. [2025-03-17 15:32:30,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:30,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 35 [2025-03-17 15:32:30,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:30,059 INFO L225 Difference]: With dead ends: 938 [2025-03-17 15:32:30,060 INFO L226 Difference]: Without dead ends: 937 [2025-03-17 15:32:30,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:30,060 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 35 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:30,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 190 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:30,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2025-03-17 15:32:30,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 920. [2025-03-17 15:32:30,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 856 states have (on average 1.4228971962616823) internal successors, (1218), 895 states have internal predecessors, (1218), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1262 transitions. [2025-03-17 15:32:30,115 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1262 transitions. Word has length 35 [2025-03-17 15:32:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:30,115 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1262 transitions. [2025-03-17 15:32:30,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2025-03-17 15:32:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1262 transitions. [2025-03-17 15:32:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-17 15:32:30,117 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:30,117 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:30,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-17 15:32:30,117 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:30,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:30,118 INFO L85 PathProgramCache]: Analyzing trace with hash -675510354, now seen corresponding path program 1 times [2025-03-17 15:32:30,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:30,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475649601] [2025-03-17 15:32:30,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:30,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:30,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 15:32:30,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 15:32:30,133 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:30,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:30,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2041968485] [2025-03-17 15:32:30,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:30,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:30,136 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:30,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 15:32:30,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 15:32:30,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 15:32:30,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:30,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:30,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:32:30,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:30,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:35,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:35,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475649601] [2025-03-17 15:32:35,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:35,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041968485] [2025-03-17 15:32:35,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041968485] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:32:35,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:32:35,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 15 [2025-03-17 15:32:35,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856924001] [2025-03-17 15:32:35,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:35,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:32:35,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:35,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:32:35,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=168, Unknown=1, NotChecked=0, Total=240 [2025-03-17 15:32:35,700 INFO L87 Difference]: Start difference. First operand 920 states and 1262 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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) [2025-03-17 15:32:36,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:36,982 INFO L93 Difference]: Finished difference Result 924 states and 1266 transitions. [2025-03-17 15:32:36,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:32:36,982 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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 36 [2025-03-17 15:32:36,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:36,984 INFO L225 Difference]: With dead ends: 924 [2025-03-17 15:32:36,984 INFO L226 Difference]: Without dead ends: 923 [2025-03-17 15:32:36,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=80, Invalid=191, Unknown=1, NotChecked=0, Total=272 [2025-03-17 15:32:36,985 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 31 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:36,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 115 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-17 15:32:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2025-03-17 15:32:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 922. [2025-03-17 15:32:37,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 858 states have (on average 1.416083916083916) internal successors, (1215), 897 states have internal predecessors, (1215), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:37,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1259 transitions. [2025-03-17 15:32:37,037 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1259 transitions. Word has length 36 [2025-03-17 15:32:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:37,037 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1259 transitions. [2025-03-17 15:32:37,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 7 states have internal predecessors, (34), 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) [2025-03-17 15:32:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1259 transitions. [2025-03-17 15:32:37,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-17 15:32:37,038 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:37,038 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:37,044 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 15:32:37,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:37,239 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:37,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash -2069839046, now seen corresponding path program 1 times [2025-03-17 15:32:37,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:37,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325495371] [2025-03-17 15:32:37,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:37,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:37,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 15:32:37,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 15:32:37,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:37,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:37,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1795944726] [2025-03-17 15:32:37,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:37,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:37,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:37,257 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:37,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 15:32:37,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 15:32:37,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 15:32:37,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:37,291 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:37,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:32:37,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:37,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:37,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:37,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:37,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325495371] [2025-03-17 15:32:37,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:37,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795944726] [2025-03-17 15:32:37,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795944726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:37,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:37,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 15:32:37,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520494540] [2025-03-17 15:32:37,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:37,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:32:37,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:37,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:32:37,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:32:37,511 INFO L87 Difference]: Start difference. First operand 922 states and 1259 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2025-03-17 15:32:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:37,874 INFO L93 Difference]: Finished difference Result 930 states and 1265 transitions. [2025-03-17 15:32:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 15:32:37,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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 36 [2025-03-17 15:32:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:37,877 INFO L225 Difference]: With dead ends: 930 [2025-03-17 15:32:37,877 INFO L226 Difference]: Without dead ends: 929 [2025-03-17 15:32:37,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:32:37,878 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 168 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:37,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 197 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:37,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2025-03-17 15:32:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 922. [2025-03-17 15:32:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 858 states have (on average 1.4125874125874125) internal successors, (1212), 897 states have internal predecessors, (1212), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1256 transitions. [2025-03-17 15:32:37,914 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1256 transitions. Word has length 36 [2025-03-17 15:32:37,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:37,914 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1256 transitions. [2025-03-17 15:32:37,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 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) [2025-03-17 15:32:37,914 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1256 transitions. [2025-03-17 15:32:37,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-17 15:32:37,915 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:37,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:37,921 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 15:32:38,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-17 15:32:38,115 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:38,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:38,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2093158671, now seen corresponding path program 1 times [2025-03-17 15:32:38,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:38,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703699122] [2025-03-17 15:32:38,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:38,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:38,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 15:32:38,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 15:32:38,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:38,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:38,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:38,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:38,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703699122] [2025-03-17 15:32:38,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703699122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:38,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:38,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:38,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265885820] [2025-03-17 15:32:38,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:38,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:38,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:38,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:38,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:38,166 INFO L87 Difference]: Start difference. First operand 922 states and 1256 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-03-17 15:32:38,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:38,386 INFO L93 Difference]: Finished difference Result 939 states and 1260 transitions. [2025-03-17 15:32:38,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:38,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 36 [2025-03-17 15:32:38,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:38,389 INFO L225 Difference]: With dead ends: 939 [2025-03-17 15:32:38,389 INFO L226 Difference]: Without dead ends: 938 [2025-03-17 15:32:38,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:38,389 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 33 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:38,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 183 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:38,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2025-03-17 15:32:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 924. [2025-03-17 15:32:38,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 860 states have (on average 1.4093023255813955) internal successors, (1212), 899 states have internal predecessors, (1212), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1256 transitions. [2025-03-17 15:32:38,432 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1256 transitions. Word has length 36 [2025-03-17 15:32:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:38,432 INFO L471 AbstractCegarLoop]: Abstraction has 924 states and 1256 transitions. [2025-03-17 15:32:38,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-03-17 15:32:38,433 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1256 transitions. [2025-03-17 15:32:38,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-17 15:32:38,433 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:38,433 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:38,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-17 15:32:38,433 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:38,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:38,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1086911374, now seen corresponding path program 1 times [2025-03-17 15:32:38,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:38,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9241734] [2025-03-17 15:32:38,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:38,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:38,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 15:32:38,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 15:32:38,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:38,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:38,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1075029007] [2025-03-17 15:32:38,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:38,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:38,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:38,444 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:38,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 15:32:38,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-17 15:32:38,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-17 15:32:38,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:38,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:38,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-17 15:32:38,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:38,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:44,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:44,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9241734] [2025-03-17 15:32:44,334 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:44,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1075029007] [2025-03-17 15:32:44,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1075029007] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:44,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:32:44,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-03-17 15:32:44,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68840863] [2025-03-17 15:32:44,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:44,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 15:32:44,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:44,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 15:32:44,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=268, Unknown=2, NotChecked=0, Total=342 [2025-03-17 15:32:44,335 INFO L87 Difference]: Start difference. First operand 924 states and 1256 transitions. Second operand has 19 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 17 states have internal predecessors, (69), 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) [2025-03-17 15:32:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:45,733 INFO L93 Difference]: Finished difference Result 1057 states and 1432 transitions. [2025-03-17 15:32:45,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:32:45,733 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 17 states have internal predecessors, (69), 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 [2025-03-17 15:32:45,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:45,736 INFO L225 Difference]: With dead ends: 1057 [2025-03-17 15:32:45,736 INFO L226 Difference]: Without dead ends: 1056 [2025-03-17 15:32:45,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=200, Invalid=554, Unknown=2, NotChecked=0, Total=756 [2025-03-17 15:32:45,738 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 372 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:45,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 230 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-17 15:32:45,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2025-03-17 15:32:45,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 947. [2025-03-17 15:32:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 883 states have (on average 1.3997734994337485) internal successors, (1236), 922 states have internal predecessors, (1236), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1280 transitions. [2025-03-17 15:32:45,780 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1280 transitions. Word has length 37 [2025-03-17 15:32:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:45,781 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1280 transitions. [2025-03-17 15:32:45,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.8333333333333335) internal successors, (69), 17 states have internal predecessors, (69), 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) [2025-03-17 15:32:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1280 transitions. [2025-03-17 15:32:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 15:32:45,781 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:45,781 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:45,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:45,985 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,SelfDestructingSolverStorable28 [2025-03-17 15:32:45,985 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:45,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:45,985 INFO L85 PathProgramCache]: Analyzing trace with hash -545463304, now seen corresponding path program 1 times [2025-03-17 15:32:45,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343142650] [2025-03-17 15:32:45,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:45,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:32:45,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:32:45,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:45,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:45,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14454326] [2025-03-17 15:32:45,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:45,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:45,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:45,996 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:45,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 15:32:46,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:32:46,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:32:46,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:46,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:46,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 15:32:46,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:46,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:46,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:46,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343142650] [2025-03-17 15:32:46,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:46,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14454326] [2025-03-17 15:32:46,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14454326] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:46,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:46,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 15:32:46,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498880872] [2025-03-17 15:32:46,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:46,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:32:46,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:46,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:32:46,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:32:46,187 INFO L87 Difference]: Start difference. First operand 947 states and 1280 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-03-17 15:32:46,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:46,464 INFO L93 Difference]: Finished difference Result 956 states and 1286 transitions. [2025-03-17 15:32:46,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:32:46,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 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 38 [2025-03-17 15:32:46,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:46,467 INFO L225 Difference]: With dead ends: 956 [2025-03-17 15:32:46,467 INFO L226 Difference]: Without dead ends: 954 [2025-03-17 15:32:46,468 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:32:46,468 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 165 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:46,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 201 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:46,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2025-03-17 15:32:46,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 947. [2025-03-17 15:32:46,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 883 states have (on average 1.3929784824462061) internal successors, (1230), 922 states have internal predecessors, (1230), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:46,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1274 transitions. [2025-03-17 15:32:46,518 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1274 transitions. Word has length 38 [2025-03-17 15:32:46,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:46,518 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1274 transitions. [2025-03-17 15:32:46,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 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) [2025-03-17 15:32:46,518 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1274 transitions. [2025-03-17 15:32:46,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 15:32:46,519 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:46,519 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:46,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-17 15:32:46,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:46,722 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:46,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:46,722 INFO L85 PathProgramCache]: Analyzing trace with hash -665485716, now seen corresponding path program 1 times [2025-03-17 15:32:46,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:46,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961633316] [2025-03-17 15:32:46,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:46,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:46,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:32:46,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:32:46,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:46,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:46,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030585542] [2025-03-17 15:32:46,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:46,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:46,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:46,735 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:46,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 15:32:46,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 15:32:46,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 15:32:46,770 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:46,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:46,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:32:46,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 15:32:46,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:32:46,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961633316] [2025-03-17 15:32:46,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030585542] [2025-03-17 15:32:46,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030585542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:32:46,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:32:46,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:32:46,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134281717] [2025-03-17 15:32:46,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:46,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:32:46,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:46,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:32:46,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:46,844 INFO L87 Difference]: Start difference. First operand 947 states and 1274 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (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) [2025-03-17 15:32:47,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:47,084 INFO L93 Difference]: Finished difference Result 969 states and 1286 transitions. [2025-03-17 15:32:47,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:32:47,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (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 38 [2025-03-17 15:32:47,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:47,087 INFO L225 Difference]: With dead ends: 969 [2025-03-17 15:32:47,087 INFO L226 Difference]: Without dead ends: 968 [2025-03-17 15:32:47,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:32:47,088 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 60 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:47,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 131 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:32:47,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2025-03-17 15:32:47,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 947. [2025-03-17 15:32:47,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 883 states have (on average 1.3873159682899208) internal successors, (1225), 922 states have internal predecessors, (1225), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 15:32:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1269 transitions. [2025-03-17 15:32:47,124 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1269 transitions. Word has length 38 [2025-03-17 15:32:47,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:47,124 INFO L471 AbstractCegarLoop]: Abstraction has 947 states and 1269 transitions. [2025-03-17 15:32:47,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (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) [2025-03-17 15:32:47,124 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1269 transitions. [2025-03-17 15:32:47,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-17 15:32:47,124 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:47,124 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:47,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-17 15:32:47,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:47,325 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:47,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:47,325 INFO L85 PathProgramCache]: Analyzing trace with hash 270506814, now seen corresponding path program 1 times [2025-03-17 15:32:47,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:47,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593243431] [2025-03-17 15:32:47,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:47,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:47,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:32:47,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:32:47,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:47,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:47,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1206956392] [2025-03-17 15:32:47,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:47,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:47,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:47,337 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:47,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-17 15:32:47,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:32:47,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:32:47,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:47,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:47,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 15:32:47,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:47,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:48,585 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:48,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:48,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593243431] [2025-03-17 15:32:48,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:48,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206956392] [2025-03-17 15:32:48,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206956392] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:48,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:32:48,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2025-03-17 15:32:48,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364349708] [2025-03-17 15:32:48,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:48,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:32:48,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:48,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:32:48,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:32:48,586 INFO L87 Difference]: Start difference. First operand 947 states and 1269 transitions. Second operand has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 13 states have internal predecessors, (71), 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) [2025-03-17 15:32:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:49,787 INFO L93 Difference]: Finished difference Result 1298 states and 1739 transitions. [2025-03-17 15:32:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 15:32:49,787 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 13 states have internal predecessors, (71), 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 39 [2025-03-17 15:32:49,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:49,789 INFO L225 Difference]: With dead ends: 1298 [2025-03-17 15:32:49,789 INFO L226 Difference]: Without dead ends: 894 [2025-03-17 15:32:49,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:32:49,792 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 366 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:49,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 105 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-17 15:32:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2025-03-17 15:32:49,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 879. [2025-03-17 15:32:49,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 817 states have (on average 1.4002447980416157) internal successors, (1144), 856 states have internal predecessors, (1144), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:32:49,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1184 transitions. [2025-03-17 15:32:49,829 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1184 transitions. Word has length 39 [2025-03-17 15:32:49,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:49,829 INFO L471 AbstractCegarLoop]: Abstraction has 879 states and 1184 transitions. [2025-03-17 15:32:49,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.916666666666667) internal successors, (71), 13 states have internal predecessors, (71), 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) [2025-03-17 15:32:49,829 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1184 transitions. [2025-03-17 15:32:49,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-17 15:32:49,829 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:49,829 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:49,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-17 15:32:50,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:50,030 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:50,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash 844779340, now seen corresponding path program 1 times [2025-03-17 15:32:50,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:50,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534479270] [2025-03-17 15:32:50,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:50,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:50,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:32:50,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:32:50,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:50,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:50,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2121884442] [2025-03-17 15:32:50,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:50,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:50,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:50,041 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:50,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-17 15:32:50,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:32:50,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:32:50,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:50,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:50,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 15:32:50,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:50,393 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:50,393 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:50,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:50,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534479270] [2025-03-17 15:32:50,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:50,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121884442] [2025-03-17 15:32:50,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121884442] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:32:50,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:32:50,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2025-03-17 15:32:50,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144987611] [2025-03-17 15:32:50,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:32:50,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:32:50,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:50,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:32:50,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:32:50,603 INFO L87 Difference]: Start difference. First operand 879 states and 1184 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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) [2025-03-17 15:32:51,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:51,071 INFO L93 Difference]: Finished difference Result 889 states and 1198 transitions. [2025-03-17 15:32:51,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:32:51,071 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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 39 [2025-03-17 15:32:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:51,073 INFO L225 Difference]: With dead ends: 889 [2025-03-17 15:32:51,073 INFO L226 Difference]: Without dead ends: 888 [2025-03-17 15:32:51,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2025-03-17 15:32:51,074 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 121 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:51,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 109 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:32:51,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2025-03-17 15:32:51,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 887. [2025-03-17 15:32:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 825 states have (on average 1.3963636363636365) internal successors, (1152), 864 states have internal predecessors, (1152), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:32:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 1192 transitions. [2025-03-17 15:32:51,110 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 1192 transitions. Word has length 39 [2025-03-17 15:32:51,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:51,110 INFO L471 AbstractCegarLoop]: Abstraction has 887 states and 1192 transitions. [2025-03-17 15:32:51,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 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) [2025-03-17 15:32:51,110 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 1192 transitions. [2025-03-17 15:32:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-17 15:32:51,110 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:51,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:51,116 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:51,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-17 15:32:51,311 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:51,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash 623883797, now seen corresponding path program 1 times [2025-03-17 15:32:51,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:51,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256921885] [2025-03-17 15:32:51,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:51,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:51,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:32:51,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:32:51,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:51,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:51,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432887865] [2025-03-17 15:32:51,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:51,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:51,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:51,320 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:51,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-17 15:32:51,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 15:32:51,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 15:32:51,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:51,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:51,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 15:32:51,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:51,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:51,568 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:51,894 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:51,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:51,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256921885] [2025-03-17 15:32:51,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:51,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432887865] [2025-03-17 15:32:51,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432887865] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:51,894 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:32:51,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-17 15:32:51,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938733240] [2025-03-17 15:32:51,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:51,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:32:51,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:51,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:32:51,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:32:51,895 INFO L87 Difference]: Start difference. First operand 887 states and 1192 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 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) [2025-03-17 15:32:54,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:54,683 INFO L93 Difference]: Finished difference Result 950 states and 1273 transitions. [2025-03-17 15:32:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 15:32:54,685 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 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 41 [2025-03-17 15:32:54,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:54,687 INFO L225 Difference]: With dead ends: 950 [2025-03-17 15:32:54,687 INFO L226 Difference]: Without dead ends: 944 [2025-03-17 15:32:54,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=472, Unknown=0, NotChecked=0, Total=702 [2025-03-17 15:32:54,688 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 517 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:54,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 192 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-17 15:32:54,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2025-03-17 15:32:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 918. [2025-03-17 15:32:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 856 states have (on average 1.391355140186916) internal successors, (1191), 894 states have internal predecessors, (1191), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:32:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1231 transitions. [2025-03-17 15:32:54,730 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1231 transitions. Word has length 41 [2025-03-17 15:32:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:54,730 INFO L471 AbstractCegarLoop]: Abstraction has 918 states and 1231 transitions. [2025-03-17 15:32:54,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 14 states have internal predecessors, (75), 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) [2025-03-17 15:32:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1231 transitions. [2025-03-17 15:32:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:32:54,730 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:54,730 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:54,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-17 15:32:54,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-03-17 15:32:54,931 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:54,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:54,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1743090541, now seen corresponding path program 1 times [2025-03-17 15:32:54,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:54,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415080472] [2025-03-17 15:32:54,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:54,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:32:54,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:32:54,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:54,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:54,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312301195] [2025-03-17 15:32:54,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:54,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:54,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:54,944 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:54,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-17 15:32:54,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:32:54,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:32:54,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:54,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:54,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 15:32:54,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:55,276 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:55,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:55,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415080472] [2025-03-17 15:32:55,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:55,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312301195] [2025-03-17 15:32:55,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312301195] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:32:55,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:32:55,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-17 15:32:55,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987893877] [2025-03-17 15:32:55,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:55,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:32:55,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:55,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:32:55,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-03-17 15:32:55,757 INFO L87 Difference]: Start difference. First operand 918 states and 1231 transitions. Second operand has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 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) [2025-03-17 15:32:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:57,399 INFO L93 Difference]: Finished difference Result 943 states and 1258 transitions. [2025-03-17 15:32:57,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 15:32:57,399 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 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 43 [2025-03-17 15:32:57,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:57,401 INFO L225 Difference]: With dead ends: 943 [2025-03-17 15:32:57,401 INFO L226 Difference]: Without dead ends: 942 [2025-03-17 15:32:57,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=211, Invalid=439, Unknown=0, NotChecked=0, Total=650 [2025-03-17 15:32:57,402 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 350 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:57,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 173 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-03-17 15:32:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2025-03-17 15:32:57,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 920. [2025-03-17 15:32:57,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 858 states have (on average 1.386946386946387) internal successors, (1190), 896 states have internal predecessors, (1190), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:32:57,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1230 transitions. [2025-03-17 15:32:57,448 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1230 transitions. Word has length 43 [2025-03-17 15:32:57,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:57,448 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 1230 transitions. [2025-03-17 15:32:57,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.076923076923077) internal successors, (79), 14 states have internal predecessors, (79), 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) [2025-03-17 15:32:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1230 transitions. [2025-03-17 15:32:57,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 15:32:57,448 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:57,448 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:57,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-17 15:32:57,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:57,649 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:57,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:57,649 INFO L85 PathProgramCache]: Analyzing trace with hash -72762607, now seen corresponding path program 1 times [2025-03-17 15:32:57,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:57,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573984802] [2025-03-17 15:32:57,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:57,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:57,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:32:57,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:32:57,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:57,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:32:57,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2106597556] [2025-03-17 15:32:57,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:57,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:57,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:32:57,665 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:32:57,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-17 15:32:57,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:32:57,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:32:57,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:57,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:32:57,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-17 15:32:57,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:32:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:32:58,012 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:32:58,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:32:58,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573984802] [2025-03-17 15:32:58,421 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:32:58,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106597556] [2025-03-17 15:32:58,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106597556] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:32:58,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:32:58,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-17 15:32:58,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541186557] [2025-03-17 15:32:58,421 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:32:58,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:32:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:32:58,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:32:58,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:32:58,425 INFO L87 Difference]: Start difference. First operand 920 states and 1230 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 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) [2025-03-17 15:32:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:32:59,739 INFO L93 Difference]: Finished difference Result 937 states and 1250 transitions. [2025-03-17 15:32:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 15:32:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 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 45 [2025-03-17 15:32:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:32:59,741 INFO L225 Difference]: With dead ends: 937 [2025-03-17 15:32:59,741 INFO L226 Difference]: Without dead ends: 936 [2025-03-17 15:32:59,741 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2025-03-17 15:32:59,741 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 176 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:32:59,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 231 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-17 15:32:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2025-03-17 15:32:59,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 911. [2025-03-17 15:32:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 849 states have (on average 1.3898704358068317) internal successors, (1180), 887 states have internal predecessors, (1180), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-17 15:32:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1220 transitions. [2025-03-17 15:32:59,778 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1220 transitions. Word has length 45 [2025-03-17 15:32:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:32:59,779 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1220 transitions. [2025-03-17 15:32:59,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 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) [2025-03-17 15:32:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1220 transitions. [2025-03-17 15:32:59,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-17 15:32:59,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:32:59,779 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:32:59,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-17 15:32:59,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:32:59,980 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:32:59,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:32:59,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1174650677, now seen corresponding path program 1 times [2025-03-17 15:32:59,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:32:59,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503121720] [2025-03-17 15:32:59,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:32:59,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:32:59,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 15:32:59,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 15:32:59,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:32:59,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:33:00,163 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:33:00,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:33:00,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503121720] [2025-03-17 15:33:00,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503121720] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:33:00,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:33:00,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 15:33:00,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015624065] [2025-03-17 15:33:00,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:33:00,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:33:00,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:33:00,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:33:00,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:33:00,165 INFO L87 Difference]: Start difference. First operand 911 states and 1220 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-03-17 15:33:00,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:33:00,595 INFO L93 Difference]: Finished difference Result 1429 states and 1925 transitions. [2025-03-17 15:33:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:33:00,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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 51 [2025-03-17 15:33:00,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:33:00,597 INFO L225 Difference]: With dead ends: 1429 [2025-03-17 15:33:00,597 INFO L226 Difference]: Without dead ends: 1099 [2025-03-17 15:33:00,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:33:00,598 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 270 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 15:33:00,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 229 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 15:33:00,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2025-03-17 15:33:00,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 1062. [2025-03-17 15:33:00,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 995 states have (on average 1.4050251256281407) internal successors, (1398), 1033 states have internal predecessors, (1398), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2025-03-17 15:33:00,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1448 transitions. [2025-03-17 15:33:00,644 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1448 transitions. Word has length 51 [2025-03-17 15:33:00,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:33:00,644 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1448 transitions. [2025-03-17 15:33:00,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 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) [2025-03-17 15:33:00,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1448 transitions. [2025-03-17 15:33:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-17 15:33:00,645 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:33:00,645 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:33:00,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-03-17 15:33:00,645 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:33:00,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:33:00,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1172097365, now seen corresponding path program 1 times [2025-03-17 15:33:00,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:33:00,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339385801] [2025-03-17 15:33:00,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:33:00,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:33:00,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 15:33:00,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 15:33:00,659 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:33:00,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:33:00,688 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:33:00,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:33:00,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339385801] [2025-03-17 15:33:00,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339385801] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:33:00,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:33:00,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:33:00,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114619288] [2025-03-17 15:33:00,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:33:00,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:33:00,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:33:00,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:33:00,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:33:00,690 INFO L87 Difference]: Start difference. First operand 1062 states and 1448 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-17 15:33:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:33:00,805 INFO L93 Difference]: Finished difference Result 1062 states and 1448 transitions. [2025-03-17 15:33:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:33:00,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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 51 [2025-03-17 15:33:00,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:33:00,808 INFO L225 Difference]: With dead ends: 1062 [2025-03-17 15:33:00,808 INFO L226 Difference]: Without dead ends: 1059 [2025-03-17 15:33:00,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:33:00,809 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:33:00,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 101 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:33:00,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2025-03-17 15:33:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1059. [2025-03-17 15:33:00,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 995 states have (on average 1.3909547738693466) internal successors, (1384), 1030 states have internal predecessors, (1384), 25 states have call successors, (25), 4 states have call predecessors, (25), 4 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2025-03-17 15:33:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1434 transitions. [2025-03-17 15:33:00,865 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1434 transitions. Word has length 51 [2025-03-17 15:33:00,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:33:00,865 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1434 transitions. [2025-03-17 15:33:00,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 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) [2025-03-17 15:33:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1434 transitions. [2025-03-17 15:33:00,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-17 15:33:00,866 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:33:00,866 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:33:00,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-03-17 15:33:00,866 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2025-03-17 15:33:00,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:33:00,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1977349417, now seen corresponding path program 1 times [2025-03-17 15:33:00,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:33:00,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875526623] [2025-03-17 15:33:00,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:33:00,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:33:00,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:33:00,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:33:00,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:33:00,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:33:00,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57382769] [2025-03-17 15:33:00,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:33:00,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:33:00,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:33:00,880 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 15:33:00,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-17 15:33:00,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 15:33:00,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 15:33:00,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:33:00,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:33:00,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-17 15:33:00,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:33:18,002 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 15:33:18,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:33:19,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:33:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875526623] [2025-03-17 15:33:19,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:33:19,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57382769] [2025-03-17 15:33:19,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57382769] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:33:19,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:33:19,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-17 15:33:19,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282504525] [2025-03-17 15:33:19,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:33:19,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 15:33:19,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:33:19,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 15:33:19,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=379, Unknown=4, NotChecked=0, Total=462 [2025-03-17 15:33:19,505 INFO L87 Difference]: Start difference. First operand 1059 states and 1434 transitions. Second operand has 15 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 15 states have internal predecessors, (48), 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) [2025-03-17 15:33:23,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:33:31,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:33:36,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:33:40,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-17 15:33:45,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]