./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound10.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34fd2c5bce28a2f0a39de6b9c2d306403d911c32b4998862fc7a657ddcb319f4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 15:36:40,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 15:36:40,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 15:36:40,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 15:36:40,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 15:36:40,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 15:36:40,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 15:36:40,694 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 15:36:40,694 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 15:36:40,695 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 15:36:40,695 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 15:36:40,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 15:36:40,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 15:36:40,695 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 15:36:40,695 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 15:36:40,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 15:36:40,696 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 15:36:40,697 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:36:40,697 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 15:36:40,697 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 15:36:40,698 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 15:36:40,698 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 -> 34fd2c5bce28a2f0a39de6b9c2d306403d911c32b4998862fc7a657ddcb319f4 [2025-03-17 15:36:40,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 15:36:40,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 15:36:40,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 15:36:40,908 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 15:36:40,909 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 15:36:40,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound10.c [2025-03-17 15:36:42,080 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411b6b107/beb231a356d440ac9c0355f9b20d645c/FLAG14cc47681 [2025-03-17 15:36:42,280 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 15:36:42,281 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_unwindbound10.c [2025-03-17 15:36:42,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411b6b107/beb231a356d440ac9c0355f9b20d645c/FLAG14cc47681 [2025-03-17 15:36:42,300 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/411b6b107/beb231a356d440ac9c0355f9b20d645c [2025-03-17 15:36:42,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 15:36:42,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 15:36:42,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 15:36:42,306 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 15:36:42,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 15:36:42,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54cf1a63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42, skipping insertion in model container [2025-03-17 15:36:42,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 15:36:42,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:36:42,450 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 15:36:42,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 15:36:42,476 INFO L204 MainTranslator]: Completed translation [2025-03-17 15:36:42,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42 WrapperNode [2025-03-17 15:36:42,477 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 15:36:42,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 15:36:42,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 15:36:42,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 15:36:42,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,506 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2025-03-17 15:36:42,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 15:36:42,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 15:36:42,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 15:36:42,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 15:36:42,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,514 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,524 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 15:36:42,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,526 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,531 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 15:36:42,533 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 15:36:42,533 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 15:36:42,533 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 15:36:42,534 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (1/1) ... [2025-03-17 15:36:42,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 15:36:42,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:42,561 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 15:36:42,563 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 15:36:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 15:36:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 15:36:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 15:36:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 15:36:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 15:36:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 15:36:42,618 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 15:36:42,619 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 15:36:42,913 INFO L? ?]: Removed 74 outVars from TransFormulas that were not future-live. [2025-03-17 15:36:42,913 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 15:36:42,924 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 15:36:42,924 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 15:36:42,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:36:42 BoogieIcfgContainer [2025-03-17 15:36:42,924 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 15:36:42,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 15:36:42,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 15:36:42,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 15:36:42,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 03:36:42" (1/3) ... [2025-03-17 15:36:42,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221be398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:36:42, skipping insertion in model container [2025-03-17 15:36:42,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 03:36:42" (2/3) ... [2025-03-17 15:36:42,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221be398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 03:36:42, skipping insertion in model container [2025-03-17 15:36:42,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 03:36:42" (3/3) ... [2025-03-17 15:36:42,933 INFO L128 eAbstractionObserver]: Analyzing ICFG ps4-ll_unwindbound10.c [2025-03-17 15:36:42,944 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 15:36:42,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps4-ll_unwindbound10.c that has 2 procedures, 138 locations, 1 initial locations, 1 loop locations, and 62 error locations. [2025-03-17 15:36:42,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 15:36:42,996 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;@5b569d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 15:36:42,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2025-03-17 15:36:42,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 71 states have (on average 1.9295774647887325) internal successors, (137), 133 states have internal predecessors, (137), 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 15:36:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 15:36:43,003 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:43,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 15:36:43,005 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:43,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:43,009 INFO L85 PathProgramCache]: Analyzing trace with hash 162788, now seen corresponding path program 1 times [2025-03-17 15:36:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:43,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125044140] [2025-03-17 15:36:43,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:43,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:43,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 15:36:43,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 15:36:43,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:43,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:43,155 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 15:36:43,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:43,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125044140] [2025-03-17 15:36:43,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125044140] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:43,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:43,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:36:43,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750393025] [2025-03-17 15:36:43,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:43,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:43,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:43,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:43,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:43,181 INFO L87 Difference]: Start difference. First operand has 138 states, 71 states have (on average 1.9295774647887325) internal successors, (137), 133 states have internal predecessors, (137), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:36:43,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:43,252 INFO L93 Difference]: Finished difference Result 269 states and 296 transitions. [2025-03-17 15:36:43,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:36:43,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-17 15:36:43,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:43,260 INFO L225 Difference]: With dead ends: 269 [2025-03-17 15:36:43,260 INFO L226 Difference]: Without dead ends: 128 [2025-03-17 15:36:43,263 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 15:36:43,266 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 4 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:43,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 376 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:43,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2025-03-17 15:36:43,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2025-03-17 15:36:43,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 1.726027397260274) internal successors, (126), 124 states have internal predecessors, (126), 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 15:36:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2025-03-17 15:36:43,309 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2025-03-17 15:36:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2025-03-17 15:36:43,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:36:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2025-03-17 15:36:43,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 15:36:43,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:43,311 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 15:36:43,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 15:36:43,311 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:43,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:43,314 INFO L85 PathProgramCache]: Analyzing trace with hash 554747260, now seen corresponding path program 1 times [2025-03-17 15:36:43,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:43,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313811658] [2025-03-17 15:36:43,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:43,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:43,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 15:36:43,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 15:36:43,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:43,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:43,359 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 15:36:43,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:43,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313811658] [2025-03-17 15:36:43,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313811658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:43,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:43,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 15:36:43,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425703699] [2025-03-17 15:36:43,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:43,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:36:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:43,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:36:43,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:36:43,362 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:36:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:43,475 INFO L93 Difference]: Finished difference Result 225 states and 245 transitions. [2025-03-17 15:36:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:36:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 15:36:43,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:43,477 INFO L225 Difference]: With dead ends: 225 [2025-03-17 15:36:43,477 INFO L226 Difference]: Without dead ends: 223 [2025-03-17 15:36:43,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 15:36:43,478 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 92 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:43,478 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 222 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:43,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-03-17 15:36:43,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 160. [2025-03-17 15:36:43,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 103 states have (on average 1.7378640776699028) internal successors, (179), 154 states have internal predecessors, (179), 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 15:36:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 187 transitions. [2025-03-17 15:36:43,490 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 187 transitions. Word has length 6 [2025-03-17 15:36:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:43,490 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 187 transitions. [2025-03-17 15:36:43,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 15:36:43,492 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 187 transitions. [2025-03-17 15:36:43,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 15:36:43,492 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:43,492 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:43,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 15:36:43,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:43,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash 17295968, now seen corresponding path program 1 times [2025-03-17 15:36:43,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:43,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372899667] [2025-03-17 15:36:43,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:43,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 15:36:43,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 15:36:43,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:43,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:43,530 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 15:36:43,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:43,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372899667] [2025-03-17 15:36:43,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372899667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:43,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:43,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 15:36:43,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049188108] [2025-03-17 15:36:43,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:43,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:36:43,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:43,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:36:43,531 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:36:43,531 INFO L87 Difference]: Start difference. First operand 160 states and 187 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 15:36:43,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:43,629 INFO L93 Difference]: Finished difference Result 231 states and 243 transitions. [2025-03-17 15:36:43,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:36:43,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2025-03-17 15:36:43,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:43,630 INFO L225 Difference]: With dead ends: 231 [2025-03-17 15:36:43,630 INFO L226 Difference]: Without dead ends: 222 [2025-03-17 15:36:43,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 15:36:43,631 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 91 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:43,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 226 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2025-03-17 15:36:43,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 180. [2025-03-17 15:36:43,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 123 states have (on average 1.6829268292682926) internal successors, (207), 174 states have internal predecessors, (207), 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 15:36:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 215 transitions. [2025-03-17 15:36:43,638 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 215 transitions. Word has length 7 [2025-03-17 15:36:43,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:43,638 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 215 transitions. [2025-03-17 15:36:43,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 15:36:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 215 transitions. [2025-03-17 15:36:43,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-17 15:36:43,639 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:43,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:43,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 15:36:43,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:43,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash -558441058, now seen corresponding path program 1 times [2025-03-17 15:36:43,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:43,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640134527] [2025-03-17 15:36:43,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:43,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:43,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:36:43,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:36:43,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:43,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:43,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1559299800] [2025-03-17 15:36:43,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:43,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:43,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:43,649 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 15:36:43,651 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 15:36:43,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 15:36:43,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 15:36:43,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:43,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:43,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:36:43,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:43,703 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 15:36:43,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:43,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640134527] [2025-03-17 15:36:43,704 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:43,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559299800] [2025-03-17 15:36:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559299800] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:43,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:43,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 15:36:43,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076206706] [2025-03-17 15:36:43,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:43,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:36:43,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:43,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:36:43,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:36:43,705 INFO L87 Difference]: Start difference. First operand 180 states and 215 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 15:36:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:43,897 INFO L93 Difference]: Finished difference Result 213 states and 223 transitions. [2025-03-17 15:36:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:36:43,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 15:36:43,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:43,898 INFO L225 Difference]: With dead ends: 213 [2025-03-17 15:36:43,898 INFO L226 Difference]: Without dead ends: 186 [2025-03-17 15:36:43,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 15:36:43,899 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 52 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:43,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 126 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-03-17 15:36:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2025-03-17 15:36:43,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 178 states have internal predecessors, (188), 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 15:36:43,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 196 transitions. [2025-03-17 15:36:43,909 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 196 transitions. Word has length 9 [2025-03-17 15:36:43,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:43,909 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 196 transitions. [2025-03-17 15:36:43,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 15:36:43,909 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 196 transitions. [2025-03-17 15:36:43,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 15:36:43,909 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:43,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:43,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:44,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:44,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:44,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:44,114 INFO L85 PathProgramCache]: Analyzing trace with hash 344737652, now seen corresponding path program 1 times [2025-03-17 15:36:44,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871312748] [2025-03-17 15:36:44,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:44,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:44,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 15:36:44,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 15:36:44,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:44,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:44,169 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 15:36:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:44,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871312748] [2025-03-17 15:36:44,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871312748] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:44,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:44,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:36:44,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113247129] [2025-03-17 15:36:44,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:44,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:44,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:44,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:44,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:44,170 INFO L87 Difference]: Start difference. First operand 184 states and 196 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 15:36:44,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:44,362 INFO L93 Difference]: Finished difference Result 197 states and 207 transitions. [2025-03-17 15:36:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:36:44,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2025-03-17 15:36:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:44,363 INFO L225 Difference]: With dead ends: 197 [2025-03-17 15:36:44,363 INFO L226 Difference]: Without dead ends: 195 [2025-03-17 15:36:44,363 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 15:36:44,364 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 115 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:44,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 178 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:44,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-03-17 15:36:44,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 184. [2025-03-17 15:36:44,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 127 states have (on average 1.4645669291338583) internal successors, (186), 178 states have internal predecessors, (186), 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 15:36:44,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 194 transitions. [2025-03-17 15:36:44,377 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 194 transitions. Word has length 14 [2025-03-17 15:36:44,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:44,377 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 194 transitions. [2025-03-17 15:36:44,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 15:36:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 194 transitions. [2025-03-17 15:36:44,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 15:36:44,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:44,378 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:44,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 15:36:44,378 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:44,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1835710100, now seen corresponding path program 1 times [2025-03-17 15:36:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:44,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721743861] [2025-03-17 15:36:44,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:44,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:44,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:36:44,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:36:44,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:44,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:44,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640792348] [2025-03-17 15:36:44,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:44,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:44,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:44,396 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 15:36:44,398 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 15:36:44,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 15:36:44,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 15:36:44,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:44,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:44,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:36:44,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:44,528 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 15:36:44,528 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:44,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:44,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721743861] [2025-03-17 15:36:44,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:44,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640792348] [2025-03-17 15:36:44,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640792348] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:44,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:44,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 15:36:44,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331216317] [2025-03-17 15:36:44,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:44,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:36:44,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:44,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:36:44,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:36:44,529 INFO L87 Difference]: Start difference. First operand 184 states and 194 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 15:36:44,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:44,696 INFO L93 Difference]: Finished difference Result 190 states and 194 transitions. [2025-03-17 15:36:44,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:36:44,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2025-03-17 15:36:44,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:44,698 INFO L225 Difference]: With dead ends: 190 [2025-03-17 15:36:44,698 INFO L226 Difference]: Without dead ends: 158 [2025-03-17 15:36:44,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 15:36:44,698 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 39 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:44,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 117 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:44,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2025-03-17 15:36:44,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2025-03-17 15:36:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 100 states have (on average 1.55) internal successors, (155), 151 states have internal predecessors, (155), 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 15:36:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 161 transitions. [2025-03-17 15:36:44,707 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 161 transitions. Word has length 22 [2025-03-17 15:36:44,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:44,707 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 161 transitions. [2025-03-17 15:36:44,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 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 15:36:44,707 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 161 transitions. [2025-03-17 15:36:44,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-17 15:36:44,708 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:44,708 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 15:36:44,714 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 15:36:44,912 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,SelfDestructingSolverStorable5 [2025-03-17 15:36:44,912 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:44,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:44,912 INFO L85 PathProgramCache]: Analyzing trace with hash -36705528, now seen corresponding path program 1 times [2025-03-17 15:36:44,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:44,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416800146] [2025-03-17 15:36:44,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:44,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:44,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 15:36:44,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 15:36:44,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:44,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:44,993 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 15:36:44,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416800146] [2025-03-17 15:36:44,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416800146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:44,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:44,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 15:36:44,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462083596] [2025-03-17 15:36:44,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:44,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 15:36:44,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:44,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 15:36:44,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 15:36:44,995 INFO L87 Difference]: Start difference. First operand 156 states and 161 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 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 15:36:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:45,009 INFO L93 Difference]: Finished difference Result 158 states and 161 transitions. [2025-03-17 15:36:45,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 15:36:45,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 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 15:36:45,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:45,011 INFO L225 Difference]: With dead ends: 158 [2025-03-17 15:36:45,011 INFO L226 Difference]: Without dead ends: 156 [2025-03-17 15:36:45,011 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 15:36:45,011 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 1 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:45,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 242 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:45,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-03-17 15:36:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2025-03-17 15:36:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 100 states have (on average 1.53) internal successors, (153), 151 states have internal predecessors, (153), 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 15:36:45,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 159 transitions. [2025-03-17 15:36:45,018 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 159 transitions. Word has length 34 [2025-03-17 15:36:45,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:45,019 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 159 transitions. [2025-03-17 15:36:45,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 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 15:36:45,019 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 159 transitions. [2025-03-17 15:36:45,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-17 15:36:45,020 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:45,021 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, 1, 1, 1] [2025-03-17 15:36:45,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 15:36:45,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:45,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1587545697, now seen corresponding path program 1 times [2025-03-17 15:36:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:45,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566380837] [2025-03-17 15:36:45,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:45,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:36:45,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:36:45,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:45,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:45,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864277739] [2025-03-17 15:36:45,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:45,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:45,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:45,045 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 15:36:45,047 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 15:36:45,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 15:36:45,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 15:36:45,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:45,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:45,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:36:45,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:45,146 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 15:36:45,146 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:45,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:45,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566380837] [2025-03-17 15:36:45,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:45,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864277739] [2025-03-17 15:36:45,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864277739] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:45,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:45,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:36:45,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247994869] [2025-03-17 15:36:45,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:45,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:45,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:45,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:45,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:45,147 INFO L87 Difference]: Start difference. First operand 156 states and 159 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 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 15:36:45,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:45,330 INFO L93 Difference]: Finished difference Result 257 states and 281 transitions. [2025-03-17 15:36:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:36:45,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 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 15:36:45,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:45,332 INFO L225 Difference]: With dead ends: 257 [2025-03-17 15:36:45,332 INFO L226 Difference]: Without dead ends: 231 [2025-03-17 15:36:45,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:45,332 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 72 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:45,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 121 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-03-17 15:36:45,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 221. [2025-03-17 15:36:45,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 163 states have (on average 1.4846625766871167) internal successors, (242), 214 states have internal predecessors, (242), 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 15:36:45,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 252 transitions. [2025-03-17 15:36:45,338 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 252 transitions. Word has length 39 [2025-03-17 15:36:45,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:45,338 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 252 transitions. [2025-03-17 15:36:45,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 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 15:36:45,338 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 252 transitions. [2025-03-17 15:36:45,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-17 15:36:45,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:45,339 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, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:45,344 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 15:36:45,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:45,543 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:45,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:45,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1605969536, now seen corresponding path program 1 times [2025-03-17 15:36:45,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:45,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691887639] [2025-03-17 15:36:45,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:45,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:45,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 15:36:45,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 15:36:45,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:45,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:45,612 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 15:36:45,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:45,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691887639] [2025-03-17 15:36:45,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691887639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:45,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:45,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:36:45,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109217920] [2025-03-17 15:36:45,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:45,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:45,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:45,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:45,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:45,613 INFO L87 Difference]: Start difference. First operand 221 states and 252 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 15:36:45,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:45,864 INFO L93 Difference]: Finished difference Result 254 states and 305 transitions. [2025-03-17 15:36:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:36:45,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 42 [2025-03-17 15:36:45,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:45,866 INFO L225 Difference]: With dead ends: 254 [2025-03-17 15:36:45,866 INFO L226 Difference]: Without dead ends: 253 [2025-03-17 15:36:45,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:36:45,867 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 86 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:45,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 122 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-03-17 15:36:45,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 220. [2025-03-17 15:36:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4723926380368098) internal successors, (240), 213 states have internal predecessors, (240), 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 15:36:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 250 transitions. [2025-03-17 15:36:45,874 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 250 transitions. Word has length 42 [2025-03-17 15:36:45,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:45,874 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 250 transitions. [2025-03-17 15:36:45,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 15:36:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 250 transitions. [2025-03-17 15:36:45,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-17 15:36:45,875 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:45,875 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:45,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 15:36:45,875 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:45,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:45,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1754551965, now seen corresponding path program 1 times [2025-03-17 15:36:45,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:45,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772985029] [2025-03-17 15:36:45,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:45,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:45,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 15:36:45,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 15:36:45,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:45,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:45,936 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 15:36:45,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:45,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772985029] [2025-03-17 15:36:45,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772985029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:45,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:45,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:36:45,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550977367] [2025-03-17 15:36:45,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:45,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:45,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:45,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:45,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:45,938 INFO L87 Difference]: Start difference. First operand 220 states and 250 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 15:36:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:46,091 INFO L93 Difference]: Finished difference Result 221 states and 250 transitions. [2025-03-17 15:36:46,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:36:46,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 43 [2025-03-17 15:36:46,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:46,092 INFO L225 Difference]: With dead ends: 221 [2025-03-17 15:36:46,092 INFO L226 Difference]: Without dead ends: 220 [2025-03-17 15:36:46,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:36:46,092 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 32 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:46,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 209 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2025-03-17 15:36:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2025-03-17 15:36:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4662576687116564) internal successors, (239), 213 states have internal predecessors, (239), 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 15:36:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 249 transitions. [2025-03-17 15:36:46,098 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 249 transitions. Word has length 43 [2025-03-17 15:36:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:46,098 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 249 transitions. [2025-03-17 15:36:46,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 15:36:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 249 transitions. [2025-03-17 15:36:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-17 15:36:46,099 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:46,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:46,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 15:36:46,099 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:46,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:46,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1797705701, now seen corresponding path program 1 times [2025-03-17 15:36:46,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:46,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733831979] [2025-03-17 15:36:46,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:46,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:46,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:36:46,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:36:46,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:46,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:46,184 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 15:36:46,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:46,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733831979] [2025-03-17 15:36:46,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733831979] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:46,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549325055] [2025-03-17 15:36:46,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:46,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:46,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:46,187 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 15:36:46,188 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 15:36:46,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 15:36:46,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 15:36:46,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:46,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:46,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:36:46,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:46,303 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 15:36:46,304 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549325055] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:46,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:46,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:36:46,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795430192] [2025-03-17 15:36:46,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:46,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:36:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:46,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:36:46,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:36:46,305 INFO L87 Difference]: Start difference. First operand 220 states and 249 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 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 15:36:46,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:46,328 INFO L93 Difference]: Finished difference Result 220 states and 249 transitions. [2025-03-17 15:36:46,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:36:46,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 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 15:36:46,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:46,330 INFO L225 Difference]: With dead ends: 220 [2025-03-17 15:36:46,331 INFO L226 Difference]: Without dead ends: 219 [2025-03-17 15:36:46,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:36:46,331 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:46,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 235 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:46,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-17 15:36:46,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2025-03-17 15:36:46,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 163 states have (on average 1.4539877300613497) internal successors, (237), 212 states have internal predecessors, (237), 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 15:36:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 247 transitions. [2025-03-17 15:36:46,338 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 247 transitions. Word has length 45 [2025-03-17 15:36:46,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:46,338 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 247 transitions. [2025-03-17 15:36:46,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 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 15:36:46,339 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 247 transitions. [2025-03-17 15:36:46,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 15:36:46,339 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:46,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:46,345 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 15:36:46,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:46,540 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:46,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:46,540 INFO L85 PathProgramCache]: Analyzing trace with hash 105698215, now seen corresponding path program 1 times [2025-03-17 15:36:46,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:46,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668084059] [2025-03-17 15:36:46,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:46,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:46,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 15:36:46,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 15:36:46,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:46,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:46,615 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 15:36:46,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:46,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668084059] [2025-03-17 15:36:46,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668084059] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:46,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666081176] [2025-03-17 15:36:46,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:46,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:46,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:46,617 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 15:36:46,619 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 15:36:46,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 15:36:46,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 15:36:46,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:46,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:46,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:36:46,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:36:46,719 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:46,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666081176] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:46,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:46,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-17 15:36:46,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733216004] [2025-03-17 15:36:46,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:46,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:36:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:46,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:36:46,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:36:46,720 INFO L87 Difference]: Start difference. First operand 219 states and 247 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 15:36:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:46,754 INFO L93 Difference]: Finished difference Result 302 states and 340 transitions. [2025-03-17 15:36:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:36:46,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 46 [2025-03-17 15:36:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:46,755 INFO L225 Difference]: With dead ends: 302 [2025-03-17 15:36:46,755 INFO L226 Difference]: Without dead ends: 301 [2025-03-17 15:36:46,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 15:36:46,756 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 83 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:46,756 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 559 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:46,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-03-17 15:36:46,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 236. [2025-03-17 15:36:46,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 178 states have (on average 1.4550561797752808) internal successors, (259), 228 states have internal predecessors, (259), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:36:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 273 transitions. [2025-03-17 15:36:46,764 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 273 transitions. Word has length 46 [2025-03-17 15:36:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:46,765 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 273 transitions. [2025-03-17 15:36:46,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 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 15:36:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 273 transitions. [2025-03-17 15:36:46,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 15:36:46,766 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:46,766 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:46,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 15:36:46,967 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,SelfDestructingSolverStorable11 [2025-03-17 15:36:46,968 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:46,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:46,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1503227419, now seen corresponding path program 1 times [2025-03-17 15:36:46,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:46,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104812314] [2025-03-17 15:36:46,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:46,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:46,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:36:46,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:36:46,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:46,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:46,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1570465827] [2025-03-17 15:36:46,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:46,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:46,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:46,978 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 15:36:46,979 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 15:36:46,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:36:47,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:36:47,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:47,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:47,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 15:36:47,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:47,150 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 15:36:47,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:36:47,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:47,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104812314] [2025-03-17 15:36:47,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:47,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570465827] [2025-03-17 15:36:47,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570465827] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:47,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:47,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-03-17 15:36:47,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416149561] [2025-03-17 15:36:47,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:47,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:36:47,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:47,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:36:47,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-17 15:36:47,279 INFO L87 Difference]: Start difference. First operand 236 states and 273 transitions. Second operand has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 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 15:36:47,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:47,758 INFO L93 Difference]: Finished difference Result 278 states and 338 transitions. [2025-03-17 15:36:47,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:36:47,759 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 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 48 [2025-03-17 15:36:47,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:47,760 INFO L225 Difference]: With dead ends: 278 [2025-03-17 15:36:47,760 INFO L226 Difference]: Without dead ends: 276 [2025-03-17 15:36:47,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:36:47,760 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 200 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:47,760 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 104 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:36:47,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2025-03-17 15:36:47,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 234. [2025-03-17 15:36:47,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 178 states have (on average 1.4325842696629214) internal successors, (255), 226 states have internal predecessors, (255), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:36:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 269 transitions. [2025-03-17 15:36:47,767 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 269 transitions. Word has length 48 [2025-03-17 15:36:47,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:47,767 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 269 transitions. [2025-03-17 15:36:47,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 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 15:36:47,768 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 269 transitions. [2025-03-17 15:36:47,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 15:36:47,768 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:47,768 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:47,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 15:36:47,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:47,969 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:47,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:47,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1503227455, now seen corresponding path program 1 times [2025-03-17 15:36:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575590514] [2025-03-17 15:36:47,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:47,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:47,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:36:47,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:36:47,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:47,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:36:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575590514] [2025-03-17 15:36:48,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575590514] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907628235] [2025-03-17 15:36:48,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:48,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:48,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:48,049 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 15:36:48,051 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 15:36:48,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 15:36:48,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 15:36:48,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:48,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:48,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:36:48,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:48,132 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:36:48,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:36:48,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907628235] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:48,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:36:48,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2025-03-17 15:36:48,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987875214] [2025-03-17 15:36:48,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:48,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 15:36:48,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:48,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 15:36:48,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:36:48,193 INFO L87 Difference]: Start difference. First operand 234 states and 269 transitions. Second operand has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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 15:36:48,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:48,283 INFO L93 Difference]: Finished difference Result 471 states and 492 transitions. [2025-03-17 15:36:48,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 15:36:48,283 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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 48 [2025-03-17 15:36:48,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:48,285 INFO L225 Difference]: With dead ends: 471 [2025-03-17 15:36:48,286 INFO L226 Difference]: Without dead ends: 389 [2025-03-17 15:36:48,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 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 15:36:48,286 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 245 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:48,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 879 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:48,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2025-03-17 15:36:48,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 294. [2025-03-17 15:36:48,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 234 states have (on average 1.4572649572649572) internal successors, (341), 282 states have internal predecessors, (341), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:36:48,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 357 transitions. [2025-03-17 15:36:48,298 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 357 transitions. Word has length 48 [2025-03-17 15:36:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:48,298 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 357 transitions. [2025-03-17 15:36:48,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 13 states have internal predecessors, (96), 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 15:36:48,299 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 357 transitions. [2025-03-17 15:36:48,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-17 15:36:48,299 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:48,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:48,305 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 15:36:48,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:48,504 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:48,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:48,505 INFO L85 PathProgramCache]: Analyzing trace with hash 644590359, now seen corresponding path program 1 times [2025-03-17 15:36:48,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:48,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834974683] [2025-03-17 15:36:48,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:48,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:48,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 15:36:48,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 15:36:48,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:48,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:48,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1978081863] [2025-03-17 15:36:48,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:48,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:48,518 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 15:36:48,520 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 15:36:48,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 15:36:48,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 15:36:48,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:48,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:48,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:36:48,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:48,658 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 15:36:48,659 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:48,745 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 15:36:48,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:48,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834974683] [2025-03-17 15:36:48,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:48,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978081863] [2025-03-17 15:36:48,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978081863] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:48,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:48,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-17 15:36:48,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927754900] [2025-03-17 15:36:48,746 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:48,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:36:48,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:48,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:36:48,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:48,747 INFO L87 Difference]: Start difference. First operand 294 states and 357 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 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 15:36:49,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:49,179 INFO L93 Difference]: Finished difference Result 315 states and 363 transitions. [2025-03-17 15:36:49,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 15:36:49,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 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 49 [2025-03-17 15:36:49,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:49,181 INFO L225 Difference]: With dead ends: 315 [2025-03-17 15:36:49,181 INFO L226 Difference]: Without dead ends: 303 [2025-03-17 15:36:49,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:36:49,181 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 187 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:49,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 233 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:36:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-17 15:36:49,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 289. [2025-03-17 15:36:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 235 states have (on average 1.374468085106383) internal successors, (323), 276 states have internal predecessors, (323), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 15:36:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 339 transitions. [2025-03-17 15:36:49,190 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 339 transitions. Word has length 49 [2025-03-17 15:36:49,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:49,190 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 339 transitions. [2025-03-17 15:36:49,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 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 15:36:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 339 transitions. [2025-03-17 15:36:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2025-03-17 15:36:49,191 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:49,191 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:49,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:49,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 15:36:49,394 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:49,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash -848848163, now seen corresponding path program 1 times [2025-03-17 15:36:49,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:49,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570224527] [2025-03-17 15:36:49,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:49,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:49,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 15:36:49,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 15:36:49,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:49,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:49,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [70064060] [2025-03-17 15:36:49,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:49,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:49,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:49,407 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 15:36:49,408 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 15:36:49,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 15:36:49,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 15:36:49,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:49,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:49,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 15:36:49,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:36:49,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:49,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570224527] [2025-03-17 15:36:49,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:49,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70064060] [2025-03-17 15:36:49,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70064060] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:49,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:49,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 15:36:49,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419162535] [2025-03-17 15:36:49,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:49,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:36:49,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:49,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:36:49,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:36:49,589 INFO L87 Difference]: Start difference. First operand 289 states and 339 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 15:36:49,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:49,832 INFO L93 Difference]: Finished difference Result 299 states and 349 transitions. [2025-03-17 15:36:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:36:49,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 56 [2025-03-17 15:36:49,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:49,833 INFO L225 Difference]: With dead ends: 299 [2025-03-17 15:36:49,834 INFO L226 Difference]: Without dead ends: 228 [2025-03-17 15:36:49,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:36:49,835 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 60 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:49,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 79 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:49,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-17 15:36:49,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 216. [2025-03-17 15:36:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 188 states have (on average 1.1861702127659575) internal successors, (223), 205 states have internal predecessors, (223), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:36:49,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 233 transitions. [2025-03-17 15:36:49,844 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 233 transitions. Word has length 56 [2025-03-17 15:36:49,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:49,844 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 233 transitions. [2025-03-17 15:36:49,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 15:36:49,845 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 233 transitions. [2025-03-17 15:36:49,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-17 15:36:49,846 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:49,846 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:49,852 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 15:36:50,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 15:36:50,050 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:50,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:50,050 INFO L85 PathProgramCache]: Analyzing trace with hash 2105569265, now seen corresponding path program 1 times [2025-03-17 15:36:50,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:50,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220166958] [2025-03-17 15:36:50,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:50,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:50,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:36:50,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:36:50,058 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:50,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:50,093 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:50,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:50,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220166958] [2025-03-17 15:36:50,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220166958] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:50,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563615483] [2025-03-17 15:36:50,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:50,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:50,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:50,095 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 15:36:50,097 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 15:36:50,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:36:50,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:36:50,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:50,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:50,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:36:50,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:50,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:50,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563615483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:50,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:50,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-17 15:36:50,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528143864] [2025-03-17 15:36:50,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:50,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:50,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:50,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:50,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 15:36:50,203 INFO L87 Difference]: Start difference. First operand 216 states and 233 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 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 15:36:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:50,217 INFO L93 Difference]: Finished difference Result 220 states and 233 transitions. [2025-03-17 15:36:50,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:36:50,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 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 76 [2025-03-17 15:36:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:50,218 INFO L225 Difference]: With dead ends: 220 [2025-03-17 15:36:50,218 INFO L226 Difference]: Without dead ends: 219 [2025-03-17 15:36:50,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 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 15:36:50,219 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 31 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:50,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 165 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:50,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-17 15:36:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 215. [2025-03-17 15:36:50,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 188 states have (on average 1.1702127659574468) internal successors, (220), 204 states have internal predecessors, (220), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:36:50,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 230 transitions. [2025-03-17 15:36:50,225 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 230 transitions. Word has length 76 [2025-03-17 15:36:50,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:50,225 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 230 transitions. [2025-03-17 15:36:50,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 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 15:36:50,225 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 230 transitions. [2025-03-17 15:36:50,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-17 15:36:50,225 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:50,225 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:50,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 15:36:50,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-17 15:36:50,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:50,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:50,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2105569214, now seen corresponding path program 1 times [2025-03-17 15:36:50,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:50,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439037570] [2025-03-17 15:36:50,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:50,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:50,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:36:50,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:36:50,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:50,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:50,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078067932] [2025-03-17 15:36:50,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:50,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:50,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:50,441 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 15:36:50,441 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 15:36:50,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-17 15:36:50,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-17 15:36:50,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:50,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:50,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:36:50,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:50,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:50,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439037570] [2025-03-17 15:36:50,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:50,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078067932] [2025-03-17 15:36:50,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078067932] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:50,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:50,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:36:50,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604440613] [2025-03-17 15:36:50,775 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:50,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:36:50,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:50,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:36:50,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:50,776 INFO L87 Difference]: Start difference. First operand 215 states and 230 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 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 15:36:50,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:50,926 INFO L93 Difference]: Finished difference Result 215 states and 230 transitions. [2025-03-17 15:36:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:36:50,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 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 76 [2025-03-17 15:36:50,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:50,927 INFO L225 Difference]: With dead ends: 215 [2025-03-17 15:36:50,927 INFO L226 Difference]: Without dead ends: 214 [2025-03-17 15:36:50,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:36:50,927 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 46 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:50,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 57 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:50,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-03-17 15:36:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2025-03-17 15:36:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 188 states have (on average 1.1595744680851063) internal successors, (218), 203 states have internal predecessors, (218), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 15:36:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2025-03-17 15:36:50,934 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 76 [2025-03-17 15:36:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:50,934 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2025-03-17 15:36:50,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 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 15:36:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2025-03-17 15:36:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-17 15:36:50,935 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:50,935 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 15:36:50,941 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 15:36:51,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-17 15:36:51,135 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:51,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:51,136 INFO L85 PathProgramCache]: Analyzing trace with hash 848137820, now seen corresponding path program 1 times [2025-03-17 15:36:51,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:51,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030507561] [2025-03-17 15:36:51,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:51,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:51,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:36:51,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:36:51,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:51,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:51,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:51,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030507561] [2025-03-17 15:36:51,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030507561] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:51,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812696057] [2025-03-17 15:36:51,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:51,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:51,184 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 15:36:51,185 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 15:36:51,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:36:51,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:36:51,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:51,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:51,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:36:51,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:51,280 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:51,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:51,354 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:51,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812696057] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:51,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:36:51,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-17 15:36:51,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280295826] [2025-03-17 15:36:51,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:51,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 15:36:51,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:51,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 15:36:51,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:36:51,356 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 7 states have internal predecessors, (167), 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 15:36:51,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:51,386 INFO L93 Difference]: Finished difference Result 252 states and 261 transitions. [2025-03-17 15:36:51,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:36:51,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 7 states have internal predecessors, (167), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 77 [2025-03-17 15:36:51,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:51,388 INFO L225 Difference]: With dead ends: 252 [2025-03-17 15:36:51,388 INFO L226 Difference]: Without dead ends: 251 [2025-03-17 15:36:51,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 15:36:51,388 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 19 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:51,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 348 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:36:51,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-03-17 15:36:51,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 240. [2025-03-17 15:36:51,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 213 states have (on average 1.1549295774647887) internal successors, (246), 228 states have internal predecessors, (246), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 258 transitions. [2025-03-17 15:36:51,395 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 258 transitions. Word has length 77 [2025-03-17 15:36:51,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:51,395 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 258 transitions. [2025-03-17 15:36:51,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 7 states have internal predecessors, (167), 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 15:36:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 258 transitions. [2025-03-17 15:36:51,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-17 15:36:51,396 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:51,396 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, 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 15:36:51,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:51,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:51,596 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:51,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:51,597 INFO L85 PathProgramCache]: Analyzing trace with hash 848136219, now seen corresponding path program 1 times [2025-03-17 15:36:51,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:51,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21345044] [2025-03-17 15:36:51,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:51,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:51,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:36:51,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:36:51,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:51,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:51,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027725446] [2025-03-17 15:36:51,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:51,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:51,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:51,611 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 15:36:51,613 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 15:36:51,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-17 15:36:51,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-17 15:36:51,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:51,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:51,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:36:51,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:51,821 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:51,821 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:51,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:51,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21345044] [2025-03-17 15:36:51,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:51,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027725446] [2025-03-17 15:36:51,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027725446] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:51,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:51,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:36:51,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451910853] [2025-03-17 15:36:51,902 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:51,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:36:51,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:51,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:36:51,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:51,903 INFO L87 Difference]: Start difference. First operand 240 states and 258 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 15:36:52,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:52,035 INFO L93 Difference]: Finished difference Result 248 states and 266 transitions. [2025-03-17 15:36:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:36:52,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 77 [2025-03-17 15:36:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:52,036 INFO L225 Difference]: With dead ends: 248 [2025-03-17 15:36:52,036 INFO L226 Difference]: Without dead ends: 245 [2025-03-17 15:36:52,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:52,037 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 6 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:52,037 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 107 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2025-03-17 15:36:52,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2025-03-17 15:36:52,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 218 states have (on average 1.151376146788991) internal successors, (251), 233 states have internal predecessors, (251), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2025-03-17 15:36:52,043 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 77 [2025-03-17 15:36:52,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:52,043 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2025-03-17 15:36:52,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 15:36:52,044 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2025-03-17 15:36:52,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 15:36:52,044 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:52,044 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, 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] [2025-03-17 15:36:52,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:52,244 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,SelfDestructingSolverStorable19 [2025-03-17 15:36:52,245 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:52,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:52,245 INFO L85 PathProgramCache]: Analyzing trace with hash -466479366, now seen corresponding path program 1 times [2025-03-17 15:36:52,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:52,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696831896] [2025-03-17 15:36:52,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:52,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:52,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 15:36:52,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:36:52,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:52,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:52,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739210067] [2025-03-17 15:36:52,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:52,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:52,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:52,258 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 15:36:52,259 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 15:36:52,278 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 15:36:52,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 15:36:52,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:52,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:52,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 15:36:52,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:52,484 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:52,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:52,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:52,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696831896] [2025-03-17 15:36:52,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:52,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739210067] [2025-03-17 15:36:52,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739210067] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:52,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:52,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-17 15:36:52,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349376066] [2025-03-17 15:36:52,595 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:52,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 15:36:52,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:52,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 15:36:52,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:52,595 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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 15:36:52,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:52,741 INFO L93 Difference]: Finished difference Result 246 states and 263 transitions. [2025-03-17 15:36:52,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:36:52,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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 80 [2025-03-17 15:36:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:52,742 INFO L225 Difference]: With dead ends: 246 [2025-03-17 15:36:52,742 INFO L226 Difference]: Without dead ends: 240 [2025-03-17 15:36:52,742 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-17 15:36:52,742 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 6 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:52,742 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:52,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2025-03-17 15:36:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2025-03-17 15:36:52,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 213 states have (on average 1.1502347417840375) internal successors, (245), 228 states have internal predecessors, (245), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 257 transitions. [2025-03-17 15:36:52,750 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 257 transitions. Word has length 80 [2025-03-17 15:36:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:52,750 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 257 transitions. [2025-03-17 15:36:52,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 5 states have internal predecessors, (73), 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 15:36:52,750 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 257 transitions. [2025-03-17 15:36:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-17 15:36:52,750 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:52,750 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, 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 15:36:52,756 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 15:36:52,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:52,951 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:52,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:52,951 INFO L85 PathProgramCache]: Analyzing trace with hash -96785640, now seen corresponding path program 1 times [2025-03-17 15:36:52,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:52,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955208668] [2025-03-17 15:36:52,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:52,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:52,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-17 15:36:52,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-17 15:36:52,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:52,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:52,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1249691770] [2025-03-17 15:36:52,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:52,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:52,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:52,962 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 15:36:52,964 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 15:36:52,982 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-17 15:36:52,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-17 15:36:52,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:52,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:52,998 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 15:36:52,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:53,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 15:36:53,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955208668] [2025-03-17 15:36:53,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:53,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249691770] [2025-03-17 15:36:53,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249691770] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:53,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:53,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-17 15:36:53,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598912689] [2025-03-17 15:36:53,202 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:53,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:36:53,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:53,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:36:53,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:53,203 INFO L87 Difference]: Start difference. First operand 240 states and 257 transitions. Second operand has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 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 15:36:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:53,405 INFO L93 Difference]: Finished difference Result 248 states and 265 transitions. [2025-03-17 15:36:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 15:36:53,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 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) Word has length 81 [2025-03-17 15:36:53,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:53,409 INFO L225 Difference]: With dead ends: 248 [2025-03-17 15:36:53,409 INFO L226 Difference]: Without dead ends: 242 [2025-03-17 15:36:53,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:36:53,410 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 150 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:53,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 149 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 15:36:53,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-03-17 15:36:53,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 236. [2025-03-17 15:36:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 213 states have (on average 1.1032863849765258) internal successors, (235), 224 states have internal predecessors, (235), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 247 transitions. [2025-03-17 15:36:53,422 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 247 transitions. Word has length 81 [2025-03-17 15:36:53,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:53,422 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 247 transitions. [2025-03-17 15:36:53,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.714285714285715) internal successors, (145), 8 states have internal predecessors, (145), 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 15:36:53,422 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 247 transitions. [2025-03-17 15:36:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-17 15:36:53,423 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:53,423 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 15:36:53,429 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 15:36:53,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:53,627 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:53,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:53,627 INFO L85 PathProgramCache]: Analyzing trace with hash 341732242, now seen corresponding path program 2 times [2025-03-17 15:36:53,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:53,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128586205] [2025-03-17 15:36:53,627 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:36:53,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:53,634 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-17 15:36:53,650 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 119 of 119 statements. [2025-03-17 15:36:53,650 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:36:53,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:53,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245403029] [2025-03-17 15:36:53,651 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:36:53,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:53,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:53,653 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 15:36:53,655 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 15:36:53,675 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-17 15:36:53,683 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 35 of 119 statements. [2025-03-17 15:36:53,683 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:36:53,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:53,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 15:36:53,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:53,945 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2025-03-17 15:36:53,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:36:53,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:53,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128586205] [2025-03-17 15:36:53,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:53,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245403029] [2025-03-17 15:36:53,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245403029] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:36:53,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:36:53,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 15:36:53,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29785185] [2025-03-17 15:36:53,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:36:53,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 15:36:53,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:53,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 15:36:53,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 15:36:53,946 INFO L87 Difference]: Start difference. First operand 236 states and 247 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 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 15:36:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:54,020 INFO L93 Difference]: Finished difference Result 238 states and 247 transitions. [2025-03-17 15:36:54,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 15:36:54,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 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 119 [2025-03-17 15:36:54,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:54,021 INFO L225 Difference]: With dead ends: 238 [2025-03-17 15:36:54,022 INFO L226 Difference]: Without dead ends: 229 [2025-03-17 15:36:54,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 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 15:36:54,023 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 42 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:54,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 60 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:54,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2025-03-17 15:36:54,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2025-03-17 15:36:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 207 states have (on average 1.077294685990338) internal successors, (223), 217 states have internal predecessors, (223), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 235 transitions. [2025-03-17 15:36:54,030 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 235 transitions. Word has length 119 [2025-03-17 15:36:54,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:54,031 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 235 transitions. [2025-03-17 15:36:54,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 4 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 15:36:54,031 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 235 transitions. [2025-03-17 15:36:54,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-17 15:36:54,031 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:54,031 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1] [2025-03-17 15:36:54,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-17 15:36:54,232 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,SelfDestructingSolverStorable22 [2025-03-17 15:36:54,232 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:54,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:54,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1534916525, now seen corresponding path program 1 times [2025-03-17 15:36:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:54,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144802551] [2025-03-17 15:36:54,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:54,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:54,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-17 15:36:54,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-17 15:36:54,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:54,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:54,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523876805] [2025-03-17 15:36:54,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:54,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:54,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:54,249 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 15:36:54,251 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 15:36:54,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-17 15:36:54,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-17 15:36:54,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:54,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:54,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 15:36:54,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:36:54,399 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:54,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:54,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144802551] [2025-03-17 15:36:54,449 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:54,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523876805] [2025-03-17 15:36:54,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523876805] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:36:54,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:36:54,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-17 15:36:54,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597705052] [2025-03-17 15:36:54,450 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:54,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:36:54,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:54,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:36:54,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:54,451 INFO L87 Difference]: Start difference. First operand 229 states and 235 transitions. Second operand has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 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 15:36:54,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:54,594 INFO L93 Difference]: Finished difference Result 234 states and 237 transitions. [2025-03-17 15:36:54,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 15:36:54,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 125 [2025-03-17 15:36:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:54,596 INFO L225 Difference]: With dead ends: 234 [2025-03-17 15:36:54,596 INFO L226 Difference]: Without dead ends: 232 [2025-03-17 15:36:54,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:36:54,596 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 34 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:54,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 113 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:36:54,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-03-17 15:36:54,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 229. [2025-03-17 15:36:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 207 states have (on average 1.067632850241546) internal successors, (221), 217 states have internal predecessors, (221), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:54,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 233 transitions. [2025-03-17 15:36:54,602 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 233 transitions. Word has length 125 [2025-03-17 15:36:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:54,602 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 233 transitions. [2025-03-17 15:36:54,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 22.6) internal successors, (113), 6 states have internal predecessors, (113), 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 15:36:54,603 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 233 transitions. [2025-03-17 15:36:54,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-17 15:36:54,603 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:54,603 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1] [2025-03-17 15:36:54,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:54,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:54,808 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:54,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:54,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1880998987, now seen corresponding path program 1 times [2025-03-17 15:36:54,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:54,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367321574] [2025-03-17 15:36:54,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:54,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:54,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-17 15:36:54,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 15:36:54,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:54,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:54,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132275799] [2025-03-17 15:36:54,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:54,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:54,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:54,833 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 15:36:54,834 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 15:36:54,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-17 15:36:54,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-17 15:36:54,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:54,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:54,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 15:36:54,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 15:36:55,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 3 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 15:36:55,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367321574] [2025-03-17 15:36:55,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:55,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132275799] [2025-03-17 15:36:55,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132275799] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:55,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:55,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 18 [2025-03-17 15:36:55,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152985927] [2025-03-17 15:36:55,974 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:55,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 15:36:55,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:55,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 15:36:55,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2025-03-17 15:36:55,975 INFO L87 Difference]: Start difference. First operand 229 states and 233 transitions. Second operand has 19 states, 18 states have (on average 12.88888888888889) internal successors, (232), 19 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:57,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:57,480 INFO L93 Difference]: Finished difference Result 229 states and 233 transitions. [2025-03-17 15:36:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 15:36:57,480 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 12.88888888888889) internal successors, (232), 19 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 127 [2025-03-17 15:36:57,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:57,481 INFO L225 Difference]: With dead ends: 229 [2025-03-17 15:36:57,481 INFO L226 Difference]: Without dead ends: 228 [2025-03-17 15:36:57,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:36:57,481 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 173 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:57,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 210 Invalid, 876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-17 15:36:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-17 15:36:57,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2025-03-17 15:36:57,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 207 states have (on average 1.0579710144927537) internal successors, (219), 216 states have internal predecessors, (219), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:57,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 231 transitions. [2025-03-17 15:36:57,489 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 231 transitions. Word has length 127 [2025-03-17 15:36:57,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:57,489 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 231 transitions. [2025-03-17 15:36:57,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 12.88888888888889) internal successors, (232), 19 states have internal predecessors, (232), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 15:36:57,489 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 231 transitions. [2025-03-17 15:36:57,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-17 15:36:57,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:57,490 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2025-03-17 15:36:57,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:57,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:57,690 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:57,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:57,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1628725691, now seen corresponding path program 2 times [2025-03-17 15:36:57,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:57,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596981216] [2025-03-17 15:36:57,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:36:57,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:57,696 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 133 statements into 2 equivalence classes. [2025-03-17 15:36:57,702 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 15:36:57,703 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:36:57,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:57,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [894879030] [2025-03-17 15:36:57,704 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:36:57,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:57,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:57,705 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 15:36:57,707 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 15:36:57,730 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 133 statements into 2 equivalence classes. [2025-03-17 15:36:57,749 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 15:36:57,749 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:36:57,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:57,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 15:36:57,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:57,981 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:36:57,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:36:58,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:58,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596981216] [2025-03-17 15:36:58,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:58,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894879030] [2025-03-17 15:36:58,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894879030] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:58,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:58,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2025-03-17 15:36:58,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635102515] [2025-03-17 15:36:58,211 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:58,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-17 15:36:58,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:58,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-17 15:36:58,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2025-03-17 15:36:58,212 INFO L87 Difference]: Start difference. First operand 228 states and 231 transitions. Second operand has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 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 15:36:58,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:58,819 INFO L93 Difference]: Finished difference Result 365 states and 391 transitions. [2025-03-17 15:36:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-17 15:36:58,820 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 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) Word has length 133 [2025-03-17 15:36:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:58,821 INFO L225 Difference]: With dead ends: 365 [2025-03-17 15:36:58,821 INFO L226 Difference]: Without dead ends: 362 [2025-03-17 15:36:58,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=307, Unknown=0, NotChecked=0, Total=462 [2025-03-17 15:36:58,821 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 298 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:58,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 330 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 15:36:58,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2025-03-17 15:36:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 327. [2025-03-17 15:36:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 303 states have (on average 1.0792079207920793) internal successors, (327), 312 states have internal predecessors, (327), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 15:36:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 345 transitions. [2025-03-17 15:36:58,832 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 345 transitions. Word has length 133 [2025-03-17 15:36:58,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:58,832 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 345 transitions. [2025-03-17 15:36:58,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.933333333333334) internal successors, (239), 16 states have internal predecessors, (239), 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 15:36:58,832 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 345 transitions. [2025-03-17 15:36:58,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 15:36:58,833 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:58,833 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1] [2025-03-17 15:36:58,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-17 15:36:59,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:59,033 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:36:59,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:36:59,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2078257215, now seen corresponding path program 1 times [2025-03-17 15:36:59,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:36:59,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907354750] [2025-03-17 15:36:59,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:59,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:36:59,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 15:36:59,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 15:36:59,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:59,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:36:59,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491060170] [2025-03-17 15:36:59,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:36:59,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:36:59,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:36:59,046 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 15:36:59,047 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 15:36:59,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-17 15:36:59,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 15:36:59,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:36:59,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:36:59,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 15:36:59,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:36:59,201 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:36:59,201 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:36:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 15:36:59,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:36:59,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907354750] [2025-03-17 15:36:59,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:36:59,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491060170] [2025-03-17 15:36:59,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491060170] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:36:59,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 15:36:59,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-17 15:36:59,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028443367] [2025-03-17 15:36:59,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 15:36:59,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 15:36:59,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:36:59,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 15:36:59,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 15:36:59,452 INFO L87 Difference]: Start difference. First operand 327 states and 345 transitions. Second operand has 10 states, 9 states have (on average 27.88888888888889) internal successors, (251), 10 states have internal predecessors, (251), 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 15:36:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:36:59,907 INFO L93 Difference]: Finished difference Result 432 states and 463 transitions. [2025-03-17 15:36:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 15:36:59,909 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 27.88888888888889) internal successors, (251), 10 states have internal predecessors, (251), 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) Word has length 139 [2025-03-17 15:36:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:36:59,910 INFO L225 Difference]: With dead ends: 432 [2025-03-17 15:36:59,910 INFO L226 Difference]: Without dead ends: 391 [2025-03-17 15:36:59,910 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2025-03-17 15:36:59,911 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 253 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 15:36:59,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 274 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 15:36:59,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-03-17 15:36:59,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 376. [2025-03-17 15:36:59,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 351 states have (on average 1.0598290598290598) internal successors, (372), 360 states have internal predecessors, (372), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 15:36:59,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 392 transitions. [2025-03-17 15:36:59,923 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 392 transitions. Word has length 139 [2025-03-17 15:36:59,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:36:59,923 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 392 transitions. [2025-03-17 15:36:59,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 27.88888888888889) internal successors, (251), 10 states have internal predecessors, (251), 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 15:36:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 392 transitions. [2025-03-17 15:36:59,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-17 15:36:59,924 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:36:59,924 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2025-03-17 15:36:59,930 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 15:37:00,125 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,SelfDestructingSolverStorable26 [2025-03-17 15:37:00,125 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:37:00,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:37:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1937265635, now seen corresponding path program 1 times [2025-03-17 15:37:00,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:37:00,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336544697] [2025-03-17 15:37:00,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:37:00,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:37:00,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-17 15:37:00,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-17 15:37:00,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:37:00,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:37:00,308 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:37:00,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:37:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336544697] [2025-03-17 15:37:00,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336544697] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:37:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988441824] [2025-03-17 15:37:00,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 15:37:00,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:37:00,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:37:00,310 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 15:37:00,312 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 15:37:00,331 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-17 15:37:00,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-17 15:37:00,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 15:37:00,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:37:00,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 15:37:00,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:37:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 15:37:00,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:37:00,718 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 15:37:00,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988441824] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:37:00,718 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:37:00,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 25 [2025-03-17 15:37:00,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725171011] [2025-03-17 15:37:00,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:37:00,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 15:37:00,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:37:00,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 15:37:00,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:37:00,719 INFO L87 Difference]: Start difference. First operand 376 states and 392 transitions. Second operand has 25 states, 25 states have (on average 13.12) internal successors, (328), 25 states have internal predecessors, (328), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-03-17 15:37:00,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:37:00,988 INFO L93 Difference]: Finished difference Result 503 states and 512 transitions. [2025-03-17 15:37:00,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-17 15:37:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 13.12) internal successors, (328), 25 states have internal predecessors, (328), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 175 [2025-03-17 15:37:00,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:37:00,990 INFO L225 Difference]: With dead ends: 503 [2025-03-17 15:37:00,990 INFO L226 Difference]: Without dead ends: 465 [2025-03-17 15:37:00,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=576, Invalid=1230, Unknown=0, NotChecked=0, Total=1806 [2025-03-17 15:37:00,991 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 158 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 15:37:00,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 744 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 15:37:00,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2025-03-17 15:37:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 454. [2025-03-17 15:37:01,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 422 states have (on average 1.0497630331753554) internal successors, (443), 431 states have internal predecessors, (443), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 15:37:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 465 transitions. [2025-03-17 15:37:01,015 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 465 transitions. Word has length 175 [2025-03-17 15:37:01,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:37:01,015 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 465 transitions. [2025-03-17 15:37:01,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 13.12) internal successors, (328), 25 states have internal predecessors, (328), 8 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-03-17 15:37:01,015 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 465 transitions. [2025-03-17 15:37:01,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-03-17 15:37:01,016 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:37:01,016 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2025-03-17 15:37:01,022 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 15:37:01,217 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,SelfDestructingSolverStorable27 [2025-03-17 15:37:01,217 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:37:01,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:37:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash -962700671, now seen corresponding path program 2 times [2025-03-17 15:37:01,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:37:01,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272280180] [2025-03-17 15:37:01,218 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:37:01,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:37:01,226 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 203 statements into 2 equivalence classes. [2025-03-17 15:37:01,227 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 35 of 203 statements. [2025-03-17 15:37:01,227 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:37:01,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:37:01,243 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2025-03-17 15:37:01,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:37:01,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272280180] [2025-03-17 15:37:01,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272280180] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:37:01,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22952770] [2025-03-17 15:37:01,244 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:37:01,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:37:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:37:01,245 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 15:37:01,247 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 15:37:01,267 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 203 statements into 2 equivalence classes. [2025-03-17 15:37:01,274 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 35 of 203 statements. [2025-03-17 15:37:01,274 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:37:01,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:37:01,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 15:37:01,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:37:01,419 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2025-03-17 15:37:01,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:37:01,597 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2025-03-17 15:37:01,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22952770] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 15:37:01,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 15:37:01,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-17 15:37:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618623621] [2025-03-17 15:37:01,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 15:37:01,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 15:37:01,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:37:01,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 15:37:01,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 15:37:01,598 INFO L87 Difference]: Start difference. First operand 454 states and 465 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 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 15:37:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:37:01,635 INFO L93 Difference]: Finished difference Result 454 states and 465 transitions. [2025-03-17 15:37:01,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 15:37:01,635 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 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 203 [2025-03-17 15:37:01,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:37:01,637 INFO L225 Difference]: With dead ends: 454 [2025-03-17 15:37:01,637 INFO L226 Difference]: Without dead ends: 453 [2025-03-17 15:37:01,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 15:37:01,637 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 130 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 15:37:01,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 125 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 15:37:01,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2025-03-17 15:37:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2025-03-17 15:37:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 422 states have (on average 1.0355450236966826) internal successors, (437), 430 states have internal predecessors, (437), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 15:37:01,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 459 transitions. [2025-03-17 15:37:01,654 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 459 transitions. Word has length 203 [2025-03-17 15:37:01,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:37:01,655 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 459 transitions. [2025-03-17 15:37:01,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 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 15:37:01,655 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 459 transitions. [2025-03-17 15:37:01,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2025-03-17 15:37:01,656 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:37:01,656 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1] [2025-03-17 15:37:01,662 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 15:37:01,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-17 15:37:01,860 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:37:01,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:37:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1911524257, now seen corresponding path program 3 times [2025-03-17 15:37:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:37:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586549092] [2025-03-17 15:37:01,861 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:37:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:37:01,868 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 301 statements into 8 equivalence classes. [2025-03-17 15:37:01,895 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 301 of 301 statements. [2025-03-17 15:37:01,895 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:37:01,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:37:01,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200014340] [2025-03-17 15:37:01,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 15:37:01,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:37:01,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:37:01,898 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 15:37:01,899 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 15:37:01,921 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 301 statements into 8 equivalence classes. [2025-03-17 15:37:05,728 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 301 of 301 statements. [2025-03-17 15:37:05,728 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-17 15:37:05,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:37:05,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-17 15:37:05,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:37:06,016 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 18 proven. 840 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-03-17 15:37:06,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 15:37:06,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:37:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586549092] [2025-03-17 15:37:06,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:37:06,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200014340] [2025-03-17 15:37:06,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200014340] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 15:37:06,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-17 15:37:06,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-03-17 15:37:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283172912] [2025-03-17 15:37:06,158 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-17 15:37:06,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 15:37:06,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:37:06,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 15:37:06,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2025-03-17 15:37:06,160 INFO L87 Difference]: Start difference. First operand 453 states and 459 transitions. Second operand has 14 states, 13 states have (on average 20.923076923076923) internal successors, (272), 14 states have internal predecessors, (272), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:37:06,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 15:37:06,957 INFO L93 Difference]: Finished difference Result 455 states and 459 transitions. [2025-03-17 15:37:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-17 15:37:06,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.923076923076923) internal successors, (272), 14 states have internal predecessors, (272), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 301 [2025-03-17 15:37:06,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 15:37:06,958 INFO L225 Difference]: With dead ends: 455 [2025-03-17 15:37:06,958 INFO L226 Difference]: Without dead ends: 454 [2025-03-17 15:37:06,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600 [2025-03-17 15:37:06,959 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 113 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 15:37:06,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 860 Invalid, 2430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 15:37:06,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2025-03-17 15:37:06,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 453. [2025-03-17 15:37:06,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 422 states have (on average 1.033175355450237) internal successors, (436), 430 states have internal predecessors, (436), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-17 15:37:06,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 458 transitions. [2025-03-17 15:37:06,988 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 458 transitions. Word has length 301 [2025-03-17 15:37:06,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 15:37:06,988 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 458 transitions. [2025-03-17 15:37:06,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.923076923076923) internal successors, (272), 14 states have internal predecessors, (272), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 15:37:06,989 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 458 transitions. [2025-03-17 15:37:06,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2025-03-17 15:37:06,990 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 15:37:06,990 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 1, 1] [2025-03-17 15:37:06,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-17 15:37:07,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:37:07,190 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 59 more)] === [2025-03-17 15:37:07,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 15:37:07,191 INFO L85 PathProgramCache]: Analyzing trace with hash 461375360, now seen corresponding path program 2 times [2025-03-17 15:37:07,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 15:37:07,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723031487] [2025-03-17 15:37:07,191 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:37:07,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 15:37:07,200 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 335 statements into 2 equivalence classes. [2025-03-17 15:37:07,222 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 335 of 335 statements. [2025-03-17 15:37:07,222 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 15:37:07,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 15:37:07,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2146954975] [2025-03-17 15:37:07,223 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 15:37:07,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 15:37:07,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 15:37:07,225 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 15:37:07,227 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 15:37:07,250 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 335 statements into 2 equivalence classes. [2025-03-17 15:37:07,257 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 41 of 335 statements. [2025-03-17 15:37:07,258 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 15:37:07,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 15:37:07,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 15:37:07,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 15:37:40,952 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2))) (and (= (mod (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3)) 4) 0) (<= 0 (+ (div (+ .cse0 (* (- 1) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* (- 1) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) 4) 2305843009213693951)))) is different from true [2025-03-17 15:37:52,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1162 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 931 trivial. 0 not checked. [2025-03-17 15:37:52,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 15:37:52,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 15:37:52,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723031487] [2025-03-17 15:37:52,988 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 15:37:52,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146954975] [2025-03-17 15:37:52,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146954975] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 15:37:52,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 15:37:52,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-17 15:37:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569258717] [2025-03-17 15:37:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 15:37:52,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 15:37:52,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 15:37:52,989 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 15:37:52,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=31, Unknown=1, NotChecked=10, Total=56 [2025-03-17 15:37:52,989 INFO L87 Difference]: Start difference. First operand 453 states and 458 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 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 15:38:13,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:15,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:16,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:19,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:21,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-17 15:38:22,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []