./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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/ps2-ll_unwindbound20.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 d25bbd57503ddf7114a4e56e0d2f1aa1d87b632e5d2d981ebfe6e2db50f2e17b --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:18:24,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:18:24,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:18:24,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:18:24,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:18:24,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:18:24,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:18:24,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:18:24,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:18:24,752 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:18:24,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:18:24,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:18:24,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:18:24,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:18:24,753 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:18:24,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:18:24,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:18:24,755 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:18:24,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:18:24,756 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:18:24,756 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:18:24,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:18:24,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:18:24,757 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 -> d25bbd57503ddf7114a4e56e0d2f1aa1d87b632e5d2d981ebfe6e2db50f2e17b [2025-03-04 11:18:24,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:18:24,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:18:24,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:18:24,956 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:18:24,956 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:18:24,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2025-03-04 11:18:26,043 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d916ca9/96fb514d72a549b28df1afccd7004d8f/FLAG5b06b0b99 [2025-03-04 11:18:26,227 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:18:26,227 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_unwindbound20.c [2025-03-04 11:18:26,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d916ca9/96fb514d72a549b28df1afccd7004d8f/FLAG5b06b0b99 [2025-03-04 11:18:26,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51d916ca9/96fb514d72a549b28df1afccd7004d8f [2025-03-04 11:18:26,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:18:26,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:18:26,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:18:26,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:18:26,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:18:26,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d795288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26, skipping insertion in model container [2025-03-04 11:18:26,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,610 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:18:26,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:18:26,704 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:18:26,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:18:26,722 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:18:26,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26 WrapperNode [2025-03-04 11:18:26,723 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:18:26,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:18:26,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:18:26,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:18:26,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,739 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2025-03-04 11:18:26,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:18:26,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:18:26,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:18:26,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:18:26,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,752 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]. [2025-03-04 11:18:26,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:18:26,757 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:18:26,757 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:18:26,757 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:18:26,758 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (1/1) ... [2025-03-04 11:18:26,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:18:26,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:26,784 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) [2025-03-04 11:18:26,786 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 [2025-03-04 11:18:26,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:18:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:18:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:18:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:18:26,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:18:26,803 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:18:26,840 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:18:26,841 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:18:27,040 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2025-03-04 11:18:27,042 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:18:27,049 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:18:27,051 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:18:27,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:18:27 BoogieIcfgContainer [2025-03-04 11:18:27,051 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:18:27,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:18:27,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:18:27,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:18:27,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:18:26" (1/3) ... [2025-03-04 11:18:27,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668ca516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:18:27, skipping insertion in model container [2025-03-04 11:18:27,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:18:26" (2/3) ... [2025-03-04 11:18:27,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668ca516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:18:27, skipping insertion in model container [2025-03-04 11:18:27,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:18:27" (3/3) ... [2025-03-04 11:18:27,058 INFO L128 eAbstractionObserver]: Analyzing ICFG ps2-ll_unwindbound20.c [2025-03-04 11:18:27,066 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:18:27,067 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps2-ll_unwindbound20.c that has 2 procedures, 65 locations, 1 initial locations, 1 loop locations, and 24 error locations. [2025-03-04 11:18:27,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:18:27,105 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;@5b6bb96e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:18:27,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-03-04 11:18:27,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 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) [2025-03-04 11:18:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 11:18:27,112 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:27,112 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 11:18:27,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:27,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash 2769503, now seen corresponding path program 1 times [2025-03-04 11:18:27,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:27,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672294294] [2025-03-04 11:18:27,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:27,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:27,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 11:18:27,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 11:18:27,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:27,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:27,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:27,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672294294] [2025-03-04 11:18:27,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672294294] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:27,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:27,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:18:27,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639916228] [2025-03-04 11:18:27,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:27,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:18:27,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:27,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:18:27,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:27,274 INFO L87 Difference]: Start difference. First operand has 65 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 61 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 11:18:27,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:27,338 INFO L93 Difference]: Finished difference Result 129 states and 145 transitions. [2025-03-04 11:18:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:18:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-03-04 11:18:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:27,343 INFO L225 Difference]: With dead ends: 129 [2025-03-04 11:18:27,343 INFO L226 Difference]: Without dead ends: 60 [2025-03-04 11:18:27,345 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 [2025-03-04 11:18:27,348 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 4 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 174 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 [2025-03-04 11:18:27,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 174 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:27,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-04 11:18:27,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-03-04 11:18:27,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 36 states have (on average 1.6388888888888888) internal successors, (59), 57 states have internal predecessors, (59), 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) [2025-03-04 11:18:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2025-03-04 11:18:27,371 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 4 [2025-03-04 11:18:27,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:27,371 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2025-03-04 11:18:27,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 11:18:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2025-03-04 11:18:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 11:18:27,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:27,372 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:27,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 11:18:27,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:27,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2105622373, now seen corresponding path program 1 times [2025-03-04 11:18:27,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:27,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478861006] [2025-03-04 11:18:27,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:27,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 11:18:27,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 11:18:27,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:27,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:18:27,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795747654] [2025-03-04 11:18:27,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:27,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:27,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:27,389 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) [2025-03-04 11:18:27,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 11:18:27,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 11:18:27,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 11:18:27,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:27,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:27,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:18:27,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:27,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:27,450 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:18:27,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:27,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478861006] [2025-03-04 11:18:27,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:18:27,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795747654] [2025-03-04 11:18:27,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795747654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:27,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:27,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:18:27,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807029732] [2025-03-04 11:18:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:27,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:18:27,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:27,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:18:27,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:18:27,452 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 11:18:27,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:27,511 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2025-03-04 11:18:27,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:18:27,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2025-03-04 11:18:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:27,512 INFO L225 Difference]: With dead ends: 92 [2025-03-04 11:18:27,512 INFO L226 Difference]: Without dead ends: 88 [2025-03-04 11:18:27,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:18:27,513 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 25 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:27,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 63 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:27,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2025-03-04 11:18:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 76. [2025-03-04 11:18:27,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.6274509803921569) internal successors, (83), 72 states have internal predecessors, (83), 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) [2025-03-04 11:18:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2025-03-04 11:18:27,518 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 8 [2025-03-04 11:18:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:27,518 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2025-03-04 11:18:27,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-04 11:18:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2025-03-04 11:18:27,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 11:18:27,518 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:27,518 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:27,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:27,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:27,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:27,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash -849784108, now seen corresponding path program 1 times [2025-03-04 11:18:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:27,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080975091] [2025-03-04 11:18:27,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:27,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 11:18:27,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 11:18:27,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:27,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:27,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:27,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080975091] [2025-03-04 11:18:27,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080975091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:27,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:27,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:18:27,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035431518] [2025-03-04 11:18:27,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:27,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:18:27,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:27,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:18:27,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:18:27,751 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-03-04 11:18:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:27,832 INFO L93 Difference]: Finished difference Result 94 states and 102 transitions. [2025-03-04 11:18:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:18:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2025-03-04 11:18:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:27,833 INFO L225 Difference]: With dead ends: 94 [2025-03-04 11:18:27,835 INFO L226 Difference]: Without dead ends: 86 [2025-03-04 11:18:27,835 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 [2025-03-04 11:18:27,835 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 22 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:27,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 67 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:27,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-03-04 11:18:27,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 81. [2025-03-04 11:18:27,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 77 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) [2025-03-04 11:18:27,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2025-03-04 11:18:27,841 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 9 [2025-03-04 11:18:27,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:27,841 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2025-03-04 11:18:27,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-03-04 11:18:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2025-03-04 11:18:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 11:18:27,841 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:27,841 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:27,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 11:18:27,842 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:27,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1381105961, now seen corresponding path program 1 times [2025-03-04 11:18:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:27,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163178456] [2025-03-04 11:18:27,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:27,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 11:18:27,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 11:18:27,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:27,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:27,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:27,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163178456] [2025-03-04 11:18:27,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163178456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:27,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:27,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:18:27,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895944754] [2025-03-04 11:18:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:27,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:18:27,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:27,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:18:27,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:27,904 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 11:18:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:28,007 INFO L93 Difference]: Finished difference Result 90 states and 94 transitions. [2025-03-04 11:18:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:18:28,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-04 11:18:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:28,008 INFO L225 Difference]: With dead ends: 90 [2025-03-04 11:18:28,008 INFO L226 Difference]: Without dead ends: 78 [2025-03-04 11:18:28,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:28,009 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 24 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:28,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 84 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-04 11:18:28,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2025-03-04 11:18:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.510204081632653) internal successors, (74), 70 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:18:28,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2025-03-04 11:18:28,013 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 12 [2025-03-04 11:18:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:28,013 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2025-03-04 11:18:28,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 11:18:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2025-03-04 11:18:28,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 11:18:28,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:28,014 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:28,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:18:28,014 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:28,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:28,014 INFO L85 PathProgramCache]: Analyzing trace with hash 92866451, now seen corresponding path program 1 times [2025-03-04 11:18:28,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:28,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279564712] [2025-03-04 11:18:28,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:28,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 11:18:28,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 11:18:28,026 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,026 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279564712] [2025-03-04 11:18:28,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279564712] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:28,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:28,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:18:28,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559402167] [2025-03-04 11:18:28,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:28,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:18:28,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:28,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:18:28,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:18:28,080 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:28,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:28,095 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2025-03-04 11:18:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:18:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2025-03-04 11:18:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:28,095 INFO L225 Difference]: With dead ends: 76 [2025-03-04 11:18:28,095 INFO L226 Difference]: Without dead ends: 74 [2025-03-04 11:18:28,096 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 [2025-03-04 11:18:28,098 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 1 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 104 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 [2025-03-04 11:18:28,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 104 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-03-04 11:18:28,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2025-03-04 11:18:28,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.469387755102041) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:18:28,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2025-03-04 11:18:28,102 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 21 [2025-03-04 11:18:28,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:28,102 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2025-03-04 11:18:28,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:28,103 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2025-03-04 11:18:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 11:18:28,103 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:28,103 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] [2025-03-04 11:18:28,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 11:18:28,103 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:28,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:28,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2084303473, now seen corresponding path program 1 times [2025-03-04 11:18:28,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411699619] [2025-03-04 11:18:28,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:28,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 11:18:28,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 11:18:28,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:28,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411699619] [2025-03-04 11:18:28,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411699619] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:28,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:28,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:18:28,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104867810] [2025-03-04 11:18:28,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:28,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:18:28,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:28,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:18:28,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:28,179 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2025-03-04 11:18:28,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:28,246 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2025-03-04 11:18:28,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:18:28,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 25 [2025-03-04 11:18:28,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:28,247 INFO L225 Difference]: With dead ends: 77 [2025-03-04 11:18:28,247 INFO L226 Difference]: Without dead ends: 76 [2025-03-04 11:18:28,247 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:28,247 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 1 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:28,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 81 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:28,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-03-04 11:18:28,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2025-03-04 11:18:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.46) internal successors, (73), 71 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) [2025-03-04 11:18:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2025-03-04 11:18:28,251 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 25 [2025-03-04 11:18:28,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:28,252 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2025-03-04 11:18:28,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2025-03-04 11:18:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2025-03-04 11:18:28,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-04 11:18:28,252 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:28,252 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] [2025-03-04 11:18:28,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 11:18:28,252 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:28,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:28,253 INFO L85 PathProgramCache]: Analyzing trace with hash -188898233, now seen corresponding path program 1 times [2025-03-04 11:18:28,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490360110] [2025-03-04 11:18:28,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:28,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 11:18:28,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 11:18:28,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:28,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490360110] [2025-03-04 11:18:28,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490360110] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:28,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:18:28,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:18:28,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842730141] [2025-03-04 11:18:28,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:28,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:18:28,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:28,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:18:28,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:28,311 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2025-03-04 11:18:28,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:28,366 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2025-03-04 11:18:28,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:18:28,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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 26 [2025-03-04 11:18:28,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:28,367 INFO L225 Difference]: With dead ends: 77 [2025-03-04 11:18:28,367 INFO L226 Difference]: Without dead ends: 76 [2025-03-04 11:18:28,367 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:18:28,367 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:28,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:28,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2025-03-04 11:18:28,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2025-03-04 11:18:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 72 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:18:28,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2025-03-04 11:18:28,373 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 26 [2025-03-04 11:18:28,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:28,373 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2025-03-04 11:18:28,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2025-03-04 11:18:28,373 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2025-03-04 11:18:28,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 11:18:28,373 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:28,373 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] [2025-03-04 11:18:28,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 11:18:28,373 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:28,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:28,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1142574619, now seen corresponding path program 1 times [2025-03-04 11:18:28,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:28,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639682566] [2025-03-04 11:18:28,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:28,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 11:18:28,387 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 11:18:28,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639682566] [2025-03-04 11:18:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639682566] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568634995] [2025-03-04 11:18:28,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:28,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:28,456 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) [2025-03-04 11:18:28,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 11:18:28,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 11:18:28,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 11:18:28,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:18:28,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:28,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,565 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:18:28,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568634995] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:28,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:18:28,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 11:18:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864369047] [2025-03-04 11:18:28,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:28,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:18:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:28,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:18:28,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:18:28,566 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:28,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:28,595 INFO L93 Difference]: Finished difference Result 76 states and 78 transitions. [2025-03-04 11:18:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:18:28,598 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2025-03-04 11:18:28,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:28,598 INFO L225 Difference]: With dead ends: 76 [2025-03-04 11:18:28,598 INFO L226 Difference]: Without dead ends: 75 [2025-03-04 11:18:28,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:18:28,599 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 36 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 99 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 [2025-03-04 11:18:28,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 99 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-03-04 11:18:28,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2025-03-04 11:18:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.4313725490196079) internal successors, (73), 71 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) [2025-03-04 11:18:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2025-03-04 11:18:28,603 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 28 [2025-03-04 11:18:28,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:28,603 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2025-03-04 11:18:28,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2025-03-04 11:18:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-04 11:18:28,603 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:28,603 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] [2025-03-04 11:18:28,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 11:18:28,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-03-04 11:18:28,808 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:28,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:28,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1060074798, now seen corresponding path program 1 times [2025-03-04 11:18:28,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:28,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689240121] [2025-03-04 11:18:28,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:28,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 11:18:28,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 11:18:28,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689240121] [2025-03-04 11:18:28,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689240121] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:28,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187172008] [2025-03-04 11:18:28,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:28,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:28,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:28,881 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) [2025-03-04 11:18:28,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 11:18:28,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 11:18:28,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 11:18:28,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:28,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:28,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:18:28,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:28,967 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:18:28,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187172008] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:28,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:18:28,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 11:18:28,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611315510] [2025-03-04 11:18:28,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:28,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:18:28,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:28,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:18:28,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:18:28,968 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:29,001 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2025-03-04 11:18:29,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:18:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2025-03-04 11:18:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:29,002 INFO L225 Difference]: With dead ends: 90 [2025-03-04 11:18:29,002 INFO L226 Difference]: Without dead ends: 89 [2025-03-04 11:18:29,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:18:29,002 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 33 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 201 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 [2025-03-04 11:18:29,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 201 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:29,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-03-04 11:18:29,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 74. [2025-03-04 11:18:29,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.411764705882353) internal successors, (72), 70 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:18:29,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2025-03-04 11:18:29,008 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 29 [2025-03-04 11:18:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:29,008 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2025-03-04 11:18:29,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2025-03-04 11:18:29,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 11:18:29,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:29,011 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] [2025-03-04 11:18:29,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 11:18:29,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:29,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:29,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:29,212 INFO L85 PathProgramCache]: Analyzing trace with hash 206241057, now seen corresponding path program 1 times [2025-03-04 11:18:29,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:29,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373960225] [2025-03-04 11:18:29,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:29,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:29,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:18:29,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:18:29,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:29,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:18:29,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [406227122] [2025-03-04 11:18:29,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:29,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:29,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:29,223 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) [2025-03-04 11:18:29,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 11:18:29,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:18:29,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:18:29,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:29,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:29,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:18:29,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:29,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:29,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:29,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:29,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373960225] [2025-03-04 11:18:29,375 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:18:29,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406227122] [2025-03-04 11:18:29,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406227122] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:29,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:18:29,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2025-03-04 11:18:29,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006288231] [2025-03-04 11:18:29,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:29,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:18:29,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:29,375 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:18:29,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:18:29,376 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-03-04 11:18:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:29,498 INFO L93 Difference]: Finished difference Result 152 states and 187 transitions. [2025-03-04 11:18:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:18:29,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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 32 [2025-03-04 11:18:29,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:29,499 INFO L225 Difference]: With dead ends: 152 [2025-03-04 11:18:29,499 INFO L226 Difference]: Without dead ends: 148 [2025-03-04 11:18:29,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:18:29,500 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 95 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:29,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 119 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:29,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2025-03-04 11:18:29,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 120. [2025-03-04 11:18:29,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 97 states have (on average 1.4536082474226804) internal successors, (141), 114 states have internal predecessors, (141), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:18:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2025-03-04 11:18:29,511 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 32 [2025-03-04 11:18:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:29,511 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2025-03-04 11:18:29,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 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) [2025-03-04 11:18:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2025-03-04 11:18:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 11:18:29,512 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:29,512 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:29,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 11:18:29,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:29,713 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:29,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:29,713 INFO L85 PathProgramCache]: Analyzing trace with hash 2098505486, now seen corresponding path program 1 times [2025-03-04 11:18:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:29,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233759891] [2025-03-04 11:18:29,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:29,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:29,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:18:29,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:18:29,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:29,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:29,758 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:29,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233759891] [2025-03-04 11:18:29,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233759891] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:29,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110101375] [2025-03-04 11:18:29,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:29,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:29,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:29,760 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) [2025-03-04 11:18:29,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 11:18:29,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:18:29,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:18:29,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:29,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:29,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:18:29,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:29,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:29,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110101375] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:29,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:18:29,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-04 11:18:29,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092703015] [2025-03-04 11:18:29,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:29,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:18:29,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:29,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:18:29,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:18:29,934 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 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) [2025-03-04 11:18:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:30,039 INFO L93 Difference]: Finished difference Result 120 states and 149 transitions. [2025-03-04 11:18:30,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:18:30,040 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 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 33 [2025-03-04 11:18:30,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:30,041 INFO L225 Difference]: With dead ends: 120 [2025-03-04 11:18:30,041 INFO L226 Difference]: Without dead ends: 117 [2025-03-04 11:18:30,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:18:30,041 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 74 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:30,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 100 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-03-04 11:18:30,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-03-04 11:18:30,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 111 states have internal predecessors, (134), 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) [2025-03-04 11:18:30,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2025-03-04 11:18:30,047 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 33 [2025-03-04 11:18:30,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:30,048 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2025-03-04 11:18:30,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 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) [2025-03-04 11:18:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2025-03-04 11:18:30,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 11:18:30,048 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:30,048 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:30,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 11:18:30,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-03-04 11:18:30,249 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:30,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:30,250 INFO L85 PathProgramCache]: Analyzing trace with hash 629160639, now seen corresponding path program 1 times [2025-03-04 11:18:30,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:30,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188039078] [2025-03-04 11:18:30,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:30,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:30,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:18:30,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:18:30,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:30,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:30,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:30,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:30,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188039078] [2025-03-04 11:18:30,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188039078] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:30,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847796493] [2025-03-04 11:18:30,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:30,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:30,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:30,312 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) [2025-03-04 11:18:30,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 11:18:30,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:18:30,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:18:30,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:30,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:30,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:18:30,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:30,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:30,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847796493] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:30,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:18:30,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-03-04 11:18:30,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104888235] [2025-03-04 11:18:30,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:30,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:18:30,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:30,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:18:30,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:18:30,457 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 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) [2025-03-04 11:18:30,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:30,574 INFO L93 Difference]: Finished difference Result 134 states and 159 transitions. [2025-03-04 11:18:30,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:18:30,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 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 34 [2025-03-04 11:18:30,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:30,575 INFO L225 Difference]: With dead ends: 134 [2025-03-04 11:18:30,575 INFO L226 Difference]: Without dead ends: 127 [2025-03-04 11:18:30,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:18:30,576 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 66 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:30,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 116 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:30,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-03-04 11:18:30,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 117. [2025-03-04 11:18:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 111 states have internal predecessors, (127), 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) [2025-03-04 11:18:30,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2025-03-04 11:18:30,580 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 34 [2025-03-04 11:18:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:30,581 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2025-03-04 11:18:30,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 10 states have internal predecessors, (80), 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) [2025-03-04 11:18:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2025-03-04 11:18:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 11:18:30,581 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:30,581 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:30,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:30,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:30,782 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:30,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:30,782 INFO L85 PathProgramCache]: Analyzing trace with hash -967014307, now seen corresponding path program 1 times [2025-03-04 11:18:30,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:30,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93116631] [2025-03-04 11:18:30,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:30,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:30,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:18:30,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:18:30,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:30,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:30,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:30,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93116631] [2025-03-04 11:18:30,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93116631] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:30,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682845697] [2025-03-04 11:18:30,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:30,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:30,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:30,862 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) [2025-03-04 11:18:30,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 11:18:30,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:18:30,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:18:30,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:30,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:30,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:18:30,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:31,003 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:18:31,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:18:31,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682845697] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:31,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:18:31,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2025-03-04 11:18:31,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686552941] [2025-03-04 11:18:31,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:31,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:18:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:31,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:18:31,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:18:31,004 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:31,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:31,062 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2025-03-04 11:18:31,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:18:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2025-03-04 11:18:31,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:31,063 INFO L225 Difference]: With dead ends: 119 [2025-03-04 11:18:31,063 INFO L226 Difference]: Without dead ends: 105 [2025-03-04 11:18:31,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:18:31,064 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 29 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:31,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 59 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:31,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-04 11:18:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-03-04 11:18:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.1397849462365592) internal successors, (106), 99 states have internal predecessors, (106), 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) [2025-03-04 11:18:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 114 transitions. [2025-03-04 11:18:31,070 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 114 transitions. Word has length 36 [2025-03-04 11:18:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:31,070 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 114 transitions. [2025-03-04 11:18:31,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 11:18:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 114 transitions. [2025-03-04 11:18:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-04 11:18:31,071 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:31,071 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:31,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:31,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:31,272 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:31,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:31,272 INFO L85 PathProgramCache]: Analyzing trace with hash -57289523, now seen corresponding path program 1 times [2025-03-04 11:18:31,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:31,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092899197] [2025-03-04 11:18:31,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:31,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:31,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:18:31,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:18:31,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:31,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:31,305 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:18:31,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:31,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092899197] [2025-03-04 11:18:31,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092899197] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:31,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594468786] [2025-03-04 11:18:31,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:31,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:31,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:31,308 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) [2025-03-04 11:18:31,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-04 11:18:31,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 11:18:31,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 11:18:31,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:31,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:31,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:18:31,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:31,371 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:18:31,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:18:31,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594468786] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:31,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:18:31,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 11:18:31,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038977017] [2025-03-04 11:18:31,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:31,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:18:31,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:31,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:18:31,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:18:31,372 INFO L87 Difference]: Start difference. First operand 105 states and 114 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-03-04 11:18:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:31,384 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2025-03-04 11:18:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:18:31,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 45 [2025-03-04 11:18:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:31,385 INFO L225 Difference]: With dead ends: 105 [2025-03-04 11:18:31,385 INFO L226 Difference]: Without dead ends: 104 [2025-03-04 11:18:31,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:18:31,385 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:31,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 70 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:31,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-04 11:18:31,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-03-04 11:18:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 93 states have (on average 1.10752688172043) internal successors, (103), 98 states have internal predecessors, (103), 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) [2025-03-04 11:18:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 111 transitions. [2025-03-04 11:18:31,389 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 111 transitions. Word has length 45 [2025-03-04 11:18:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:31,389 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 111 transitions. [2025-03-04 11:18:31,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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) [2025-03-04 11:18:31,389 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 111 transitions. [2025-03-04 11:18:31,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-04 11:18:31,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:31,390 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:18:31,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:31,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-04 11:18:31,594 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:31,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:31,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1775975215, now seen corresponding path program 1 times [2025-03-04 11:18:31,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:31,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445936001] [2025-03-04 11:18:31,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:31,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:31,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:18:31,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:18:31,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:31,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:18:31,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:31,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445936001] [2025-03-04 11:18:31,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445936001] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:31,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418798686] [2025-03-04 11:18:31,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:31,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:31,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:31,631 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) [2025-03-04 11:18:31,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-04 11:18:31,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 11:18:31,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 11:18:31,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:31,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:31,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:18:31,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:18:31,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:18:31,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418798686] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:31,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:18:31,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 11:18:31,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517417279] [2025-03-04 11:18:31,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:31,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:18:31,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:31,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:18:31,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:18:31,758 INFO L87 Difference]: Start difference. First operand 104 states and 111 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 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) [2025-03-04 11:18:31,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:31,781 INFO L93 Difference]: Finished difference Result 120 states and 126 transitions. [2025-03-04 11:18:31,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:18:31,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 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 46 [2025-03-04 11:18:31,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:31,782 INFO L225 Difference]: With dead ends: 120 [2025-03-04 11:18:31,782 INFO L226 Difference]: Without dead ends: 119 [2025-03-04 11:18:31,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:18:31,783 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 11 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:31,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 142 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:31,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-03-04 11:18:31,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2025-03-04 11:18:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 102 states have (on average 1.088235294117647) internal successors, (111), 107 states have internal predecessors, (111), 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) [2025-03-04 11:18:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 121 transitions. [2025-03-04 11:18:31,789 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 121 transitions. Word has length 46 [2025-03-04 11:18:31,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:31,789 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 121 transitions. [2025-03-04 11:18:31,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 7 states have internal predecessors, (90), 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) [2025-03-04 11:18:31,789 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 121 transitions. [2025-03-04 11:18:31,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:18:31,790 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:31,790 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, 2, 1, 1, 1] [2025-03-04 11:18:31,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:31,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-04 11:18:31,991 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:31,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:31,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1700577197, now seen corresponding path program 1 times [2025-03-04 11:18:31,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:31,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769696811] [2025-03-04 11:18:31,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:31,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:31,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:18:32,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:18:32,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:32,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:18:32,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:32,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769696811] [2025-03-04 11:18:32,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769696811] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:32,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291404400] [2025-03-04 11:18:32,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:18:32,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:32,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:32,103 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) [2025-03-04 11:18:32,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-04 11:18:32,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:18:32,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:18:32,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:18:32,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:32,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:18:32,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:18:32,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:18:32,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291404400] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:32,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:18:32,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2025-03-04 11:18:32,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743884290] [2025-03-04 11:18:32,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:32,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-03-04 11:18:32,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:32,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-03-04 11:18:32,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2025-03-04 11:18:32,455 INFO L87 Difference]: Start difference. First operand 114 states and 121 transitions. Second operand has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:18:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:32,686 INFO L93 Difference]: Finished difference Result 171 states and 190 transitions. [2025-03-04 11:18:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 11:18:32,686 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 74 [2025-03-04 11:18:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:32,687 INFO L225 Difference]: With dead ends: 171 [2025-03-04 11:18:32,687 INFO L226 Difference]: Without dead ends: 170 [2025-03-04 11:18:32,688 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:18:32,688 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:32,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 172 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:18:32,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2025-03-04 11:18:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 158. [2025-03-04 11:18:32,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 144 states have (on average 1.1111111111111112) internal successors, (160), 149 states have internal predecessors, (160), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:18:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 174 transitions. [2025-03-04 11:18:32,693 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 174 transitions. Word has length 74 [2025-03-04 11:18:32,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:32,694 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 174 transitions. [2025-03-04 11:18:32,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 9.368421052631579) internal successors, (178), 20 states have internal predecessors, (178), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:18:32,694 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 174 transitions. [2025-03-04 11:18:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-04 11:18:32,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:32,694 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2025-03-04 11:18:32,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:32,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-04 11:18:32,899 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:32,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1119941941, now seen corresponding path program 2 times [2025-03-04 11:18:32,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:32,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008210713] [2025-03-04 11:18:32,899 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:32,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:32,904 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 82 statements into 2 equivalence classes. [2025-03-04 11:18:32,911 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 82 of 82 statements. [2025-03-04 11:18:32,911 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:18:32,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:33,023 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:18:33,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:33,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008210713] [2025-03-04 11:18:33,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008210713] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:33,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388257064] [2025-03-04 11:18:33,024 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:33,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:33,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:33,025 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) [2025-03-04 11:18:33,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-04 11:18:33,046 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 82 statements into 2 equivalence classes. [2025-03-04 11:18:33,059 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 82 of 82 statements. [2025-03-04 11:18:33,060 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:18:33,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:33,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:18:33,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:18:33,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 11:18:33,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388257064] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:33,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:18:33,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-03-04 11:18:33,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363923038] [2025-03-04 11:18:33,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:33,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:18:33,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:33,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:18:33,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:18:33,412 INFO L87 Difference]: Start difference. First operand 158 states and 174 transitions. Second operand has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:18:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:33,683 INFO L93 Difference]: Finished difference Result 186 states and 202 transitions. [2025-03-04 11:18:33,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 11:18:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 82 [2025-03-04 11:18:33,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:33,685 INFO L225 Difference]: With dead ends: 186 [2025-03-04 11:18:33,685 INFO L226 Difference]: Without dead ends: 174 [2025-03-04 11:18:33,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:18:33,686 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 126 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:33,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 182 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:18:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-03-04 11:18:33,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 166. [2025-03-04 11:18:33,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 152 states have (on average 1.0921052631578947) internal successors, (166), 157 states have internal predecessors, (166), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:18:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 180 transitions. [2025-03-04 11:18:33,692 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 180 transitions. Word has length 82 [2025-03-04 11:18:33,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:33,692 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 180 transitions. [2025-03-04 11:18:33,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 9.238095238095237) internal successors, (194), 22 states have internal predecessors, (194), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:18:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 180 transitions. [2025-03-04 11:18:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-04 11:18:33,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:33,694 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2025-03-04 11:18:33,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:33,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-04 11:18:33,895 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:33,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:33,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1367443123, now seen corresponding path program 2 times [2025-03-04 11:18:33,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:33,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033313860] [2025-03-04 11:18:33,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:33,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:33,899 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 104 statements into 2 equivalence classes. [2025-03-04 11:18:33,909 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-03-04 11:18:33,909 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:18:33,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:18:33,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [72383944] [2025-03-04 11:18:33,909 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:33,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:33,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:33,911 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) [2025-03-04 11:18:33,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-04 11:18:33,930 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 104 statements into 2 equivalence classes. [2025-03-04 11:18:33,947 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-03-04 11:18:33,947 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:18:33,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:33,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:18:33,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:34,034 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-04 11:18:34,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:34,225 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-04 11:18:34,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033313860] [2025-03-04 11:18:34,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:18:34,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72383944] [2025-03-04 11:18:34,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72383944] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:34,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:18:34,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-04 11:18:34,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457568576] [2025-03-04 11:18:34,226 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:34,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:18:34,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:34,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:18:34,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:18:34,227 INFO L87 Difference]: Start difference. First operand 166 states and 180 transitions. Second operand has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:18:34,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:34,480 INFO L93 Difference]: Finished difference Result 249 states and 272 transitions. [2025-03-04 11:18:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:18:34,481 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 104 [2025-03-04 11:18:34,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:34,482 INFO L225 Difference]: With dead ends: 249 [2025-03-04 11:18:34,482 INFO L226 Difference]: Without dead ends: 241 [2025-03-04 11:18:34,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:18:34,482 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 143 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:34,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 363 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:18:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-04 11:18:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 224. [2025-03-04 11:18:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 207 states have (on average 1.0917874396135265) internal successors, (226), 212 states have internal predecessors, (226), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:18:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 246 transitions. [2025-03-04 11:18:34,489 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 246 transitions. Word has length 104 [2025-03-04 11:18:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:34,489 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 246 transitions. [2025-03-04 11:18:34,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 15.454545454545455) internal successors, (170), 12 states have internal predecessors, (170), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:18:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 246 transitions. [2025-03-04 11:18:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-04 11:18:34,490 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:34,490 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2025-03-04 11:18:34,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 11:18:34,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-04 11:18:34,691 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:34,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:34,691 INFO L85 PathProgramCache]: Analyzing trace with hash 802825955, now seen corresponding path program 2 times [2025-03-04 11:18:34,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:34,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875580696] [2025-03-04 11:18:34,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:34,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:34,695 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-04 11:18:34,697 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 118 statements. [2025-03-04 11:18:34,697 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 11:18:34,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:34,709 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-03-04 11:18:34,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:34,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875580696] [2025-03-04 11:18:34,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875580696] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:34,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112185203] [2025-03-04 11:18:34,709 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:34,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:34,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:34,711 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) [2025-03-04 11:18:34,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-04 11:18:34,731 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 118 statements into 2 equivalence classes. [2025-03-04 11:18:34,735 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 118 statements. [2025-03-04 11:18:34,735 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 11:18:34,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:34,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:18:34,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:34,818 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-03-04 11:18:34,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:18:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2025-03-04 11:18:34,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112185203] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:18:34,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:18:34,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2025-03-04 11:18:34,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174121074] [2025-03-04 11:18:34,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:18:34,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:18:34,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:34,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:18:34,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:18:34,931 INFO L87 Difference]: Start difference. First operand 224 states and 246 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2025-03-04 11:18:34,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:34,951 INFO L93 Difference]: Finished difference Result 224 states and 246 transitions. [2025-03-04 11:18:34,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:18:34,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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 118 [2025-03-04 11:18:34,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:34,954 INFO L225 Difference]: With dead ends: 224 [2025-03-04 11:18:34,954 INFO L226 Difference]: Without dead ends: 223 [2025-03-04 11:18:34,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:18:34,954 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 67 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:34,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 67 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-03-04 11:18:34,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2025-03-04 11:18:34,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 207 states have (on average 1.0628019323671498) internal successors, (220), 211 states have internal predecessors, (220), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:18:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 240 transitions. [2025-03-04 11:18:34,962 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 240 transitions. Word has length 118 [2025-03-04 11:18:34,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:34,962 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 240 transitions. [2025-03-04 11:18:34,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 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) [2025-03-04 11:18:34,962 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 240 transitions. [2025-03-04 11:18:34,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-03-04 11:18:34,963 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:34,963 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 1, 1, 1] [2025-03-04 11:18:34,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:35,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:35,164 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:35,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash -520085397, now seen corresponding path program 2 times [2025-03-04 11:18:35,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:35,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909789119] [2025-03-04 11:18:35,164 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:35,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:35,169 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 170 statements into 2 equivalence classes. [2025-03-04 11:18:35,186 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 170 of 170 statements. [2025-03-04 11:18:35,186 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:18:35,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 420 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-04 11:18:35,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909789119] [2025-03-04 11:18:35,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909789119] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994085374] [2025-03-04 11:18:35,446 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:18:35,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:35,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:35,448 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) [2025-03-04 11:18:35,450 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-04 11:18:35,473 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 170 statements into 2 equivalence classes. [2025-03-04 11:18:35,480 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 26 of 170 statements. [2025-03-04 11:18:35,480 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 11:18:35,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:35,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:18:35,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:18:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2025-03-04 11:18:35,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:18:35,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994085374] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:18:35,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:18:35,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 20 [2025-03-04 11:18:35,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077999502] [2025-03-04 11:18:35,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:18:35,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:18:35,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:18:35,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:18:35,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:18:35,631 INFO L87 Difference]: Start difference. First operand 223 states and 240 transitions. Second operand has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:18:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:18:35,696 INFO L93 Difference]: Finished difference Result 225 states and 242 transitions. [2025-03-04 11:18:35,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:18:35,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 170 [2025-03-04 11:18:35,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:18:35,697 INFO L225 Difference]: With dead ends: 225 [2025-03-04 11:18:35,697 INFO L226 Difference]: Without dead ends: 224 [2025-03-04 11:18:35,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:18:35,698 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 32 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:18:35,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 68 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:18:35,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2025-03-04 11:18:35,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 222. [2025-03-04 11:18:35,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 207 states have (on average 1.0434782608695652) internal successors, (216), 210 states have internal predecessors, (216), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:18:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 236 transitions. [2025-03-04 11:18:35,712 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 236 transitions. Word has length 170 [2025-03-04 11:18:35,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:18:35,712 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 236 transitions. [2025-03-04 11:18:35,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:18:35,712 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 236 transitions. [2025-03-04 11:18:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-03-04 11:18:35,713 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:18:35,713 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1] [2025-03-04 11:18:35,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 11:18:35,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:35,917 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:18:35,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:18:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1356442909, now seen corresponding path program 3 times [2025-03-04 11:18:35,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:18:35,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295437281] [2025-03-04 11:18:35,918 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:18:35,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:18:35,927 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 178 statements into 8 equivalence classes. [2025-03-04 11:18:35,975 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) and asserted 178 of 178 statements. [2025-03-04 11:18:35,975 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2025-03-04 11:18:35,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 476 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-04 11:18:36,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:18:36,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295437281] [2025-03-04 11:18:36,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295437281] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:18:36,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915276347] [2025-03-04 11:18:36,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:18:36,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:18:36,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:18:36,263 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) [2025-03-04 11:18:36,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-04 11:18:36,286 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 178 statements into 8 equivalence classes. [2025-03-04 11:18:36,296 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 34 of 178 statements. [2025-03-04 11:18:36,296 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 11:18:36,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:18:36,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 11:18:36,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:19:16,750 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (= (mod (+ |ULTIMATE.start_main_~y~0#1| .cse0) 2) 0) (<= .cse0 9223372036854775807) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~y~0#1| (div (+ (* (- 1) |ULTIMATE.start_main_~y~0#1|) .cse0) 2)))))) is different from true [2025-03-04 11:19:20,768 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2025-03-04 11:19:20,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:19:20,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915276347] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:19:20,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:19:20,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 23 [2025-03-04 11:19:20,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124971761] [2025-03-04 11:19:20,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:19:20,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:19:20,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:19:20,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:19:20,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=422, Unknown=2, NotChecked=42, Total=552 [2025-03-04 11:19:20,769 INFO L87 Difference]: Start difference. First operand 222 states and 236 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 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) [2025-03-04 11:19:29,064 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (div (+ .cse1 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 2))) (and (<= |c_ULTIMATE.start_main_~x~0#1| 4611686018427387903) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~y~0#1| .cse0)) (= (+ |c_ULTIMATE.start_main_~y~0#1| (* |c_ULTIMATE.start_main_~x~0#1| 2)) .cse1) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| .cse1) 2) 0) (<= .cse0 4611686018427387903)))) is different from true [2025-03-04 11:19:37,158 WARN L286 SmtUtils]: Spent 8.03s on a formula simplification. DAG size of input: 22 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2025-03-04 11:19:41,175 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|))) (let ((.cse0 (div (+ .cse1 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 2))) (and (<= |c_ULTIMATE.start_main_~x~0#1| 4611686018427387903) (<= |c_ULTIMATE.start_main_~x~0#1| (+ |c_ULTIMATE.start_main_~y~0#1| .cse0)) (= (mod (+ |c_ULTIMATE.start_main_~y~0#1| .cse1) 2) 0) (<= .cse0 4611686018427387903)))) is different from true [2025-03-04 11:19:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:19:41,424 INFO L93 Difference]: Finished difference Result 224 states and 238 transitions. [2025-03-04 11:19:41,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:19:41,425 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 178 [2025-03-04 11:19:41,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:19:41,426 INFO L225 Difference]: With dead ends: 224 [2025-03-04 11:19:41,426 INFO L226 Difference]: Without dead ends: 223 [2025-03-04 11:19:41,426 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=99, Invalid=508, Unknown=5, NotChecked=144, Total=756 [2025-03-04 11:19:41,426 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 47 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 70 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:19:41,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 68 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 112 Invalid, 0 Unknown, 70 Unchecked, 0.5s Time] [2025-03-04 11:19:41,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-03-04 11:19:41,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 221. [2025-03-04 11:19:41,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 207 states have (on average 1.0289855072463767) internal successors, (213), 209 states have internal predecessors, (213), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:19:41,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 233 transitions. [2025-03-04 11:19:41,436 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 233 transitions. Word has length 178 [2025-03-04 11:19:41,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:19:41,436 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 233 transitions. [2025-03-04 11:19:41,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 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) [2025-03-04 11:19:41,436 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 233 transitions. [2025-03-04 11:19:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2025-03-04 11:19:41,437 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:19:41,437 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:19:41,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 11:19:41,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:41,638 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:19:41,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:19:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1356473692, now seen corresponding path program 1 times [2025-03-04 11:19:41,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:19:41,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63602827] [2025-03-04 11:19:41,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:19:41,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:19:41,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-04 11:19:41,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-04 11:19:41,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:19:41,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-04 11:19:41,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:19:41,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63602827] [2025-03-04 11:19:41,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63602827] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:19:41,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094809169] [2025-03-04 11:19:41,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:19:41,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:41,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:19:41,979 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) [2025-03-04 11:19:41,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-04 11:19:42,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 178 statements into 1 equivalence classes. [2025-03-04 11:19:42,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 178 of 178 statements. [2025-03-04 11:19:42,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:19:42,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:42,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 11:19:42,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:19:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-04 11:19:42,682 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:19:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 448 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-04 11:19:43,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094809169] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:19:43,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:19:43,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 45 [2025-03-04 11:19:43,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423835542] [2025-03-04 11:19:43,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:19:43,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-04 11:19:43,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:19:43,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-04 11:19:43,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=1475, Unknown=0, NotChecked=0, Total=2070 [2025-03-04 11:19:43,249 INFO L87 Difference]: Start difference. First operand 221 states and 233 transitions. Second operand has 46 states, 45 states have (on average 9.377777777777778) internal successors, (422), 46 states have internal predecessors, (422), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-04 11:19:44,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:19:44,474 INFO L93 Difference]: Finished difference Result 356 states and 385 transitions. [2025-03-04 11:19:44,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 11:19:44,477 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 9.377777777777778) internal successors, (422), 46 states have internal predecessors, (422), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 178 [2025-03-04 11:19:44,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:19:44,479 INFO L225 Difference]: With dead ends: 356 [2025-03-04 11:19:44,479 INFO L226 Difference]: Without dead ends: 333 [2025-03-04 11:19:44,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1453 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1375, Invalid=2915, Unknown=0, NotChecked=0, Total=4290 [2025-03-04 11:19:44,483 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 308 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 11:19:44,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 366 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 11:19:44,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2025-03-04 11:19:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 319. [2025-03-04 11:19:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 300 states have (on average 1.04) internal successors, (312), 302 states have internal predecessors, (312), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-04 11:19:44,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 342 transitions. [2025-03-04 11:19:44,498 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 342 transitions. Word has length 178 [2025-03-04 11:19:44,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:19:44,498 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 342 transitions. [2025-03-04 11:19:44,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 9.377777777777778) internal successors, (422), 46 states have internal predecessors, (422), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-04 11:19:44,498 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 342 transitions. [2025-03-04 11:19:44,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2025-03-04 11:19:44,499 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:19:44,500 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2025-03-04 11:19:44,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 11:19:44,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-04 11:19:44,703 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:19:44,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:19:44,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1637536727, now seen corresponding path program 3 times [2025-03-04 11:19:44,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:19:44,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839886171] [2025-03-04 11:19:44,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:19:44,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:19:44,710 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 248 statements into 11 equivalence classes. [2025-03-04 11:19:44,762 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 248 of 248 statements. [2025-03-04 11:19:44,762 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 11:19:44,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:19:44,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401818052] [2025-03-04 11:19:44,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:19:44,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:44,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:19:44,766 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) [2025-03-04 11:19:44,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-04 11:19:44,791 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 248 statements into 11 equivalence classes. [2025-03-04 11:19:44,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 248 of 248 statements. [2025-03-04 11:19:44,862 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 11:19:44,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:44,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 11:19:44,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:19:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-04 11:19:45,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:19:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2025-03-04 11:19:45,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:19:45,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839886171] [2025-03-04 11:19:45,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:19:45,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401818052] [2025-03-04 11:19:45,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401818052] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:19:45,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:19:45,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2025-03-04 11:19:45,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016262192] [2025-03-04 11:19:45,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:19:45,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 11:19:45,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:19:45,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 11:19:45,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:19:45,758 INFO L87 Difference]: Start difference. First operand 319 states and 342 transitions. Second operand has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 11:19:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:19:46,997 INFO L93 Difference]: Finished difference Result 503 states and 547 transitions. [2025-03-04 11:19:46,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-04 11:19:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 248 [2025-03-04 11:19:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:19:46,999 INFO L225 Difference]: With dead ends: 503 [2025-03-04 11:19:46,999 INFO L226 Difference]: Without dead ends: 491 [2025-03-04 11:19:47,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 11:19:47,000 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 385 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 11:19:47,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1432 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 11:19:47,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2025-03-04 11:19:47,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 461. [2025-03-04 11:19:47,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 435 states have (on average 1.0229885057471264) internal successors, (445), 437 states have internal predecessors, (445), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-04 11:19:47,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 489 transitions. [2025-03-04 11:19:47,020 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 489 transitions. Word has length 248 [2025-03-04 11:19:47,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:19:47,021 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 489 transitions. [2025-03-04 11:19:47,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 17.304347826086957) internal successors, (398), 24 states have internal predecessors, (398), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-03-04 11:19:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 489 transitions. [2025-03-04 11:19:47,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2025-03-04 11:19:47,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:19:47,024 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:19:47,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-04 11:19:47,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:47,225 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:19:47,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:19:47,225 INFO L85 PathProgramCache]: Analyzing trace with hash 333122260, now seen corresponding path program 2 times [2025-03-04 11:19:47,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:19:47,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715690224] [2025-03-04 11:19:47,225 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:19:47,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:19:47,235 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 370 statements into 2 equivalence classes. [2025-03-04 11:19:47,265 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 370 of 370 statements. [2025-03-04 11:19:47,265 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:19:47,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 0 proven. 2160 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 11:19:48,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:19:48,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715690224] [2025-03-04 11:19:48,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715690224] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:19:48,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11018187] [2025-03-04 11:19:48,269 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:19:48,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:48,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:19:48,270 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) [2025-03-04 11:19:48,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-04 11:19:48,303 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 370 statements into 2 equivalence classes. [2025-03-04 11:19:48,350 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 370 of 370 statements. [2025-03-04 11:19:48,350 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:19:48,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:48,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-04 11:19:48,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:19:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 0 proven. 2580 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 11:19:49,527 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:19:50,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 0 proven. 2160 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-03-04 11:19:50,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11018187] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:19:50,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:19:50,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 33, 34] total 73 [2025-03-04 11:19:50,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008244567] [2025-03-04 11:19:50,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:19:50,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2025-03-04 11:19:50,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:19:50,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2025-03-04 11:19:50,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=4660, Unknown=0, NotChecked=0, Total=5256 [2025-03-04 11:19:50,792 INFO L87 Difference]: Start difference. First operand 461 states and 489 transitions. Second operand has 73 states, 73 states have (on average 9.835616438356164) internal successors, (718), 73 states have internal predecessors, (718), 34 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 34 states have call predecessors, (45), 34 states have call successors, (45) [2025-03-04 11:19:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:19:55,867 INFO L93 Difference]: Finished difference Result 542 states and 550 transitions. [2025-03-04 11:19:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2025-03-04 11:19:55,868 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 9.835616438356164) internal successors, (718), 73 states have internal predecessors, (718), 34 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 34 states have call predecessors, (45), 34 states have call successors, (45) Word has length 370 [2025-03-04 11:19:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:19:55,869 INFO L225 Difference]: With dead ends: 542 [2025-03-04 11:19:55,870 INFO L226 Difference]: Without dead ends: 537 [2025-03-04 11:19:55,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 856 GetRequests, 675 SyntacticMatches, 24 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7336 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=5969, Invalid=19153, Unknown=0, NotChecked=0, Total=25122 [2025-03-04 11:19:55,875 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 487 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:19:55,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 450 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 11:19:55,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2025-03-04 11:19:55,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2025-03-04 11:19:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 492 states have (on average 1.0101626016260163) internal successors, (497), 494 states have internal predecessors, (497), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-04 11:19:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 541 transitions. [2025-03-04 11:19:55,904 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 541 transitions. Word has length 370 [2025-03-04 11:19:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:19:55,905 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 541 transitions. [2025-03-04 11:19:55,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 9.835616438356164) internal successors, (718), 73 states have internal predecessors, (718), 34 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 34 states have call predecessors, (45), 34 states have call successors, (45) [2025-03-04 11:19:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 541 transitions. [2025-03-04 11:19:55,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2025-03-04 11:19:55,910 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:19:55,910 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:19:55,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 11:19:56,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:56,115 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2025-03-04 11:19:56,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:19:56,116 INFO L85 PathProgramCache]: Analyzing trace with hash -861835278, now seen corresponding path program 3 times [2025-03-04 11:19:56,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:19:56,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918499000] [2025-03-04 11:19:56,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:19:56,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:19:56,127 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 490 statements into 21 equivalence classes. [2025-03-04 11:19:56,370 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) and asserted 490 of 490 statements. [2025-03-04 11:19:56,370 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2025-03-04 11:19:56,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4640 backedges. 0 proven. 3880 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-03-04 11:19:58,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:19:58,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918499000] [2025-03-04 11:19:58,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918499000] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:19:58,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579510529] [2025-03-04 11:19:58,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:19:58,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:19:58,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:19:58,030 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) [2025-03-04 11:19:58,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-04 11:19:58,061 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 490 statements into 21 equivalence classes. [2025-03-04 11:19:58,070 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 34 of 490 statements. [2025-03-04 11:19:58,071 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 11:19:58,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:19:58,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:19:58,075 INFO L279 TraceCheckSpWp]: Computing forward predicates...