./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound100.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/geo1-u2_valuebound100.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 3a8c18680ee51ca2bbe0e4a07dd84bab232d284803c9048b6920d8cc21098c30 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:07:03,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:07:03,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:07:03,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:07:03,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:07:03,548 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:07:03,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:07:03,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:07:03,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:07:03,551 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:07:03,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:07:03,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:07:03,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:07:03,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:07:03,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:07:03,553 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:07:03,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:07:03,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:07:03,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:07:03,554 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 -> 3a8c18680ee51ca2bbe0e4a07dd84bab232d284803c9048b6920d8cc21098c30 [2025-03-04 11:07:03,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:07:03,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:07:03,796 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:07:03,797 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:07:03,797 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:07:03,799 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound100.c [2025-03-04 11:07:04,949 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0239e90f8/bb3a05cddbbb41a68a92bc6d3b2a2437/FLAG39326c736 [2025-03-04 11:07:05,206 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:07:05,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u2_valuebound100.c [2025-03-04 11:07:05,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0239e90f8/bb3a05cddbbb41a68a92bc6d3b2a2437/FLAG39326c736 [2025-03-04 11:07:05,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0239e90f8/bb3a05cddbbb41a68a92bc6d3b2a2437 [2025-03-04 11:07:05,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:07:05,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:07:05,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:07:05,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:07:05,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:07:05,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a78a477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05, skipping insertion in model container [2025-03-04 11:07:05,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:07:05,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:07:05,389 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:07:05,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:07:05,412 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:07:05,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05 WrapperNode [2025-03-04 11:07:05,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:07:05,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:07:05,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:07:05,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:07:05,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,422 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,437 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2025-03-04 11:07:05,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:07:05,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:07:05,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:07:05,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:07:05,450 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,469 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 11:07:05,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,471 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:07:05,474 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:07:05,474 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:07:05,474 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:07:05,474 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (1/1) ... [2025-03-04 11:07:05,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:07:05,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:05,498 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 11:07:05,503 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 11:07:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:07:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 11:07:05,516 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 11:07:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:07:05,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:07:05,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:07:05,517 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:07:05,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:07:05,552 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:07:05,553 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:07:05,793 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2025-03-04 11:07:05,794 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:07:05,805 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:07:05,805 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:07:05,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:07:05 BoogieIcfgContainer [2025-03-04 11:07:05,806 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:07:05,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:07:05,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:07:05,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:07:05,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:07:05" (1/3) ... [2025-03-04 11:07:05,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14943668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:07:05, skipping insertion in model container [2025-03-04 11:07:05,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:07:05" (2/3) ... [2025-03-04 11:07:05,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14943668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:07:05, skipping insertion in model container [2025-03-04 11:07:05,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:07:05" (3/3) ... [2025-03-04 11:07:05,818 INFO L128 eAbstractionObserver]: Analyzing ICFG geo1-u2_valuebound100.c [2025-03-04 11:07:05,828 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:07:05,829 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG geo1-u2_valuebound100.c that has 3 procedures, 67 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2025-03-04 11:07:05,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:07:05,871 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;@46534da3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:07:05,871 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-04 11:07:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 60 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:05,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 11:07:05,878 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:05,878 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:05,879 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:05,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash -351130286, now seen corresponding path program 1 times [2025-03-04 11:07:05,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:05,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937439393] [2025-03-04 11:07:05,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:05,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:07:05,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:07:05,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:05,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:07:05,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:05,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937439393] [2025-03-04 11:07:05,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937439393] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:05,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512892102] [2025-03-04 11:07:05,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:05,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:05,978 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 11:07:05,979 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 11:07:06,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:07:06,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:07:06,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:06,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:06,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 11:07:06,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:07:06,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:07:06,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512892102] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:06,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:07:06,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 11:07:06,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70168965] [2025-03-04 11:07:06,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:06,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 11:07:06,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:06,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 11:07:06,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:07:06,045 INFO L87 Difference]: Start difference. First operand has 67 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 60 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:07:06,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:06,059 INFO L93 Difference]: Finished difference Result 130 states and 143 transitions. [2025-03-04 11:07:06,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 11:07:06,062 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2025-03-04 11:07:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:06,067 INFO L225 Difference]: With dead ends: 130 [2025-03-04 11:07:06,067 INFO L226 Difference]: Without dead ends: 60 [2025-03-04 11:07:06,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:07:06,070 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:06,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:07:06,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-04 11:07:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2025-03-04 11:07:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 54 states have internal predecessors, (55), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:07:06,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2025-03-04 11:07:06,095 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 15 [2025-03-04 11:07:06,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:06,095 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2025-03-04 11:07:06,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 11:07:06,096 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2025-03-04 11:07:06,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 11:07:06,096 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:06,096 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:06,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 11:07:06,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 11:07:06,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:06,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:06,301 INFO L85 PathProgramCache]: Analyzing trace with hash -2147158124, now seen corresponding path program 1 times [2025-03-04 11:07:06,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:06,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146119157] [2025-03-04 11:07:06,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:06,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:06,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:07:06,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:07:06,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:06,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:06,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609247508] [2025-03-04 11:07:06,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:06,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:06,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:06,321 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 11:07:06,323 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 11:07:06,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 11:07:06,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 11:07:06,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:06,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:06,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:07:06,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:06,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:07:06,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:06,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146119157] [2025-03-04 11:07:06,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:06,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609247508] [2025-03-04 11:07:06,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609247508] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:06,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:06,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:07:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975265764] [2025-03-04 11:07:06,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:06,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:07:06,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:06,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:07:06,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:07:06,378 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:07:06,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:06,468 INFO L93 Difference]: Finished difference Result 90 states and 97 transitions. [2025-03-04 11:07:06,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:07:06,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-03-04 11:07:06,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:06,469 INFO L225 Difference]: With dead ends: 90 [2025-03-04 11:07:06,469 INFO L226 Difference]: Without dead ends: 80 [2025-03-04 11:07:06,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:07:06,470 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:06,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 67 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:06,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-03-04 11:07:06,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2025-03-04 11:07:06,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.58) internal successors, (79), 71 states have internal predecessors, (79), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:06,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2025-03-04 11:07:06,478 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 15 [2025-03-04 11:07:06,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:06,480 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2025-03-04 11:07:06,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:07:06,480 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2025-03-04 11:07:06,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 11:07:06,481 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:06,481 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:06,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 11:07:06,681 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,SelfDestructingSolverStorable1 [2025-03-04 11:07:06,682 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:06,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:06,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2128544208, now seen corresponding path program 1 times [2025-03-04 11:07:06,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:06,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700307699] [2025-03-04 11:07:06,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:06,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:06,691 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:07:06,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:07:06,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:06,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:06,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1940597115] [2025-03-04 11:07:06,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:06,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:06,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:06,708 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 11:07:06,709 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 11:07:06,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:07:06,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:07:06,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:06,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:06,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:07:06,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:06,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:06,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:07:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700307699] [2025-03-04 11:07:06,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:06,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1940597115] [2025-03-04 11:07:06,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1940597115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:06,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:06,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:07:06,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916568668] [2025-03-04 11:07:06,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:06,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:07:06,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:06,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:07:06,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:07:06,790 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:07:06,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:06,854 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2025-03-04 11:07:06,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:07:06,854 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-04 11:07:06,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:06,855 INFO L225 Difference]: With dead ends: 82 [2025-03-04 11:07:06,855 INFO L226 Difference]: Without dead ends: 80 [2025-03-04 11:07:06,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 11:07:06,856 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:06,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 65 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:06,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-03-04 11:07:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2025-03-04 11:07:06,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.54) internal successors, (77), 71 states have internal predecessors, (77), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2025-03-04 11:07:06,861 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 19 [2025-03-04 11:07:06,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:06,861 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2025-03-04 11:07:06,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:07:06,862 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2025-03-04 11:07:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-04 11:07:06,862 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:06,862 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:06,869 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 11:07:07,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:07,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:07,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1560361017, now seen corresponding path program 1 times [2025-03-04 11:07:07,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:07,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898433360] [2025-03-04 11:07:07,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:07,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:07,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 11:07:07,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 11:07:07,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:07,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:07,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:07,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:07,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898433360] [2025-03-04 11:07:07,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898433360] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:07,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:07,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:07:07,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542684747] [2025-03-04 11:07:07,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:07,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:07,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:07,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:07,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:07:07,200 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:07:07,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:07,289 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2025-03-04 11:07:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:07:07,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-03-04 11:07:07,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:07,292 INFO L225 Difference]: With dead ends: 82 [2025-03-04 11:07:07,292 INFO L226 Difference]: Without dead ends: 80 [2025-03-04 11:07:07,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 11:07:07,292 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 30 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:07,292 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 67 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:07,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-03-04 11:07:07,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2025-03-04 11:07:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.5) internal successors, (75), 71 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 83 transitions. [2025-03-04 11:07:07,299 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 83 transitions. Word has length 20 [2025-03-04 11:07:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:07,299 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 83 transitions. [2025-03-04 11:07:07,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 11:07:07,300 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 83 transitions. [2025-03-04 11:07:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-04 11:07:07,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:07,300 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:07,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:07:07,301 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:07,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:07,301 INFO L85 PathProgramCache]: Analyzing trace with hash -124985358, now seen corresponding path program 1 times [2025-03-04 11:07:07,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:07,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934181849] [2025-03-04 11:07:07,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:07,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:07,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 11:07:07,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 11:07:07,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:07,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:07,366 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:07,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:07,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934181849] [2025-03-04 11:07:07,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934181849] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:07,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:07,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:07:07,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883902293] [2025-03-04 11:07:07,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:07,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:07:07,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:07,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:07:07,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:07:07,367 INFO L87 Difference]: Start difference. First operand 78 states and 83 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:07,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:07,381 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2025-03-04 11:07:07,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:07:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2025-03-04 11:07:07,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:07,382 INFO L225 Difference]: With dead ends: 80 [2025-03-04 11:07:07,382 INFO L226 Difference]: Without dead ends: 78 [2025-03-04 11:07:07,382 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 11:07:07,383 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:07,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 110 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:07:07,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2025-03-04 11:07:07,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2025-03-04 11:07:07,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 50 states have (on average 1.46) internal successors, (73), 71 states have internal predecessors, (73), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:07,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2025-03-04 11:07:07,387 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 29 [2025-03-04 11:07:07,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:07,388 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2025-03-04 11:07:07,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:07,388 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2025-03-04 11:07:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 11:07:07,388 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:07,388 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:07,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 11:07:07,389 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:07,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash 148109505, now seen corresponding path program 1 times [2025-03-04 11:07:07,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:07,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849771399] [2025-03-04 11:07:07,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:07,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:07,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:07:07,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:07:07,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:07,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:07,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:07,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849771399] [2025-03-04 11:07:07,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849771399] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:07,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:07,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:07:07,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12655696] [2025-03-04 11:07:07,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:07,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:07,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:07,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:07,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:07:07,459 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:07:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:07,632 INFO L93 Difference]: Finished difference Result 78 states and 81 transitions. [2025-03-04 11:07:07,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:07:07,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2025-03-04 11:07:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:07,633 INFO L225 Difference]: With dead ends: 78 [2025-03-04 11:07:07,633 INFO L226 Difference]: Without dead ends: 77 [2025-03-04 11:07:07,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:07:07,635 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:07,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 83 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:07:07,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2025-03-04 11:07:07,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2025-03-04 11:07:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 50 states have (on average 1.44) internal successors, (72), 70 states have internal predecessors, (72), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 80 transitions. [2025-03-04 11:07:07,641 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 80 transitions. Word has length 31 [2025-03-04 11:07:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:07,641 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 80 transitions. [2025-03-04 11:07:07,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:07:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 80 transitions. [2025-03-04 11:07:07,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 11:07:07,641 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:07,641 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:07,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 11:07:07,642 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:07,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:07,642 INFO L85 PathProgramCache]: Analyzing trace with hash 296427337, now seen corresponding path program 1 times [2025-03-04 11:07:07,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:07,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922400661] [2025-03-04 11:07:07,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:07,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:07:07,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:07:07,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:07,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:07,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545082202] [2025-03-04 11:07:07,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:07,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:07,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:07,668 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 11:07:07,670 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 11:07:07,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:07:07,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:07:07,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:07,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:07,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:07:07,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:07,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:07:07,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:07,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922400661] [2025-03-04 11:07:07,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:07,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545082202] [2025-03-04 11:07:07,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545082202] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:07,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:07,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:07:07,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749766523] [2025-03-04 11:07:07,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:07,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:07,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:07,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:07,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:07:07,763 INFO L87 Difference]: Start difference. First operand 77 states and 80 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:07,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:07,837 INFO L93 Difference]: Finished difference Result 82 states and 86 transitions. [2025-03-04 11:07:07,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:07:07,838 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2025-03-04 11:07:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:07,839 INFO L225 Difference]: With dead ends: 82 [2025-03-04 11:07:07,839 INFO L226 Difference]: Without dead ends: 81 [2025-03-04 11:07:07,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 11:07:07,840 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 89 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 11:07:07,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 89 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-03-04 11:07:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2025-03-04 11:07:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 52 states have (on average 1.4230769230769231) internal successors, (74), 72 states have internal predecessors, (74), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:07,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 82 transitions. [2025-03-04 11:07:07,846 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 82 transitions. Word has length 32 [2025-03-04 11:07:07,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:07,846 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 82 transitions. [2025-03-04 11:07:07,847 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:07,847 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 82 transitions. [2025-03-04 11:07:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 11:07:07,847 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:07,847 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:07,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 11:07:08,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:08,048 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:08,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:08,048 INFO L85 PathProgramCache]: Analyzing trace with hash 599312831, now seen corresponding path program 1 times [2025-03-04 11:07:08,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:08,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580364035] [2025-03-04 11:07:08,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:08,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:08,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:07:08,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:07:08,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:08,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:12,215 WARN L873 $PredicateComparison]: unable to prove that (or (< (* |c_ULTIMATE.start_main_~x~0#1| (div (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296)) (+ 2147483649 |c_ULTIMATE.start_main_~x~0#1| (* |c_ULTIMATE.start_main_~x~0#1| (div |c_ULTIMATE.start_main_~z~0#1| 4294967296)))) (< |c_ULTIMATE.start_main_~y~0#1| 101)) is different from true [2025-03-04 11:07:19,285 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:07:19,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:19,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580364035] [2025-03-04 11:07:19,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580364035] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:19,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531347502] [2025-03-04 11:07:19,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:19,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:19,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:19,287 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 11:07:19,289 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 11:07:19,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:07:19,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:07:19,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:19,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:19,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:07:19,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:23,733 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:07:23,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531347502] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:23,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:07:23,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2025-03-04 11:07:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568288781] [2025-03-04 11:07:23,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:23,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:23,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:23,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:23,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=88, Unknown=2, NotChecked=18, Total=132 [2025-03-04 11:07:23,735 INFO L87 Difference]: Start difference. First operand 79 states and 82 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:23,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:23,823 INFO L93 Difference]: Finished difference Result 84 states and 89 transitions. [2025-03-04 11:07:23,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:07:23,824 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2025-03-04 11:07:23,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:23,825 INFO L225 Difference]: With dead ends: 84 [2025-03-04 11:07:23,825 INFO L226 Difference]: Without dead ends: 83 [2025-03-04 11:07:23,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=24, Invalid=88, Unknown=2, NotChecked=18, Total=132 [2025-03-04 11:07:23,826 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 8 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:23,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 77 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:23,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-04 11:07:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2025-03-04 11:07:23,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:23,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2025-03-04 11:07:23,834 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 33 [2025-03-04 11:07:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:23,835 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2025-03-04 11:07:23,835 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:23,835 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2025-03-04 11:07:23,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 11:07:23,836 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:23,836 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:23,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 11:07:24,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:24,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:24,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:24,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1398828551, now seen corresponding path program 1 times [2025-03-04 11:07:24,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:24,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558016096] [2025-03-04 11:07:24,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:24,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:24,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:07:24,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:07:24,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:24,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:24,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:24,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:24,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558016096] [2025-03-04 11:07:24,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558016096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:24,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:07:24,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:07:24,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46183389] [2025-03-04 11:07:24,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:24,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:24,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:24,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:24,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:07:24,088 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:24,194 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2025-03-04 11:07:24,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:07:24,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2025-03-04 11:07:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:24,195 INFO L225 Difference]: With dead ends: 80 [2025-03-04 11:07:24,195 INFO L226 Difference]: Without dead ends: 72 [2025-03-04 11:07:24,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:07:24,196 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 46 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:24,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 67 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:24,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2025-03-04 11:07:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2025-03-04 11:07:24,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 65 states have internal predecessors, (66), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 74 transitions. [2025-03-04 11:07:24,207 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 74 transitions. Word has length 34 [2025-03-04 11:07:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:24,207 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 74 transitions. [2025-03-04 11:07:24,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 74 transitions. [2025-03-04 11:07:24,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 11:07:24,208 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:24,208 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:24,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 11:07:24,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:24,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:24,208 INFO L85 PathProgramCache]: Analyzing trace with hash 2045672390, now seen corresponding path program 1 times [2025-03-04 11:07:24,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:24,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004208023] [2025-03-04 11:07:24,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:24,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:24,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:07:24,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:07:24,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:24,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:24,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [858095936] [2025-03-04 11:07:24,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:24,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:24,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:24,224 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 11:07:24,225 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 11:07:24,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:07:24,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:07:24,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:24,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:24,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:07:24,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:24,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:07:24,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:24,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:24,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004208023] [2025-03-04 11:07:24,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:24,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858095936] [2025-03-04 11:07:24,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858095936] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:24,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:07:24,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:07:24,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161762781] [2025-03-04 11:07:24,462 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:07:24,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:07:24,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:24,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:07:24,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:07:24,463 INFO L87 Difference]: Start difference. First operand 72 states and 74 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:07:24,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:24,595 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2025-03-04 11:07:24,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:07:24,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 36 [2025-03-04 11:07:24,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:24,596 INFO L225 Difference]: With dead ends: 75 [2025-03-04 11:07:24,596 INFO L226 Difference]: Without dead ends: 74 [2025-03-04 11:07:24,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:07:24,597 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:24,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 79 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:24,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2025-03-04 11:07:24,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2025-03-04 11:07:24,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 67 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:24,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2025-03-04 11:07:24,604 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 36 [2025-03-04 11:07:24,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:24,604 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2025-03-04 11:07:24,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:07:24,604 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2025-03-04 11:07:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 11:07:24,604 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:24,604 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:24,611 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 11:07:24,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:24,810 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:24,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:24,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1008665331, now seen corresponding path program 1 times [2025-03-04 11:07:24,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:24,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591713410] [2025-03-04 11:07:24,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:24,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:24,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:07:24,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:07:24,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:24,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:24,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321426420] [2025-03-04 11:07:24,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:24,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:24,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:24,826 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 11:07:24,828 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 11:07:24,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:07:24,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:07:24,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:24,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:24,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:07:24,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:24,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:25,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591713410] [2025-03-04 11:07:25,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:25,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321426420] [2025-03-04 11:07:25,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321426420] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:25,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:07:25,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-04 11:07:25,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706481829] [2025-03-04 11:07:25,042 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:07:25,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:25,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:25,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:25,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:07:25,043 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:25,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:25,126 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2025-03-04 11:07:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:07:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2025-03-04 11:07:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:25,127 INFO L225 Difference]: With dead ends: 74 [2025-03-04 11:07:25,127 INFO L226 Difference]: Without dead ends: 70 [2025-03-04 11:07:25,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:07:25,128 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 18 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:25,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 68 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:25,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2025-03-04 11:07:25,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2025-03-04 11:07:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 63 states have internal predecessors, (64), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:07:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 72 transitions. [2025-03-04 11:07:25,131 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 72 transitions. Word has length 37 [2025-03-04 11:07:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:25,131 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 72 transitions. [2025-03-04 11:07:25,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 11:07:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 72 transitions. [2025-03-04 11:07:25,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 11:07:25,132 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:25,132 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:25,139 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 11:07:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:25,333 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:25,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:25,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1203854172, now seen corresponding path program 1 times [2025-03-04 11:07:25,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:25,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106945561] [2025-03-04 11:07:25,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:25,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:25,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:07:25,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:07:25,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:25,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:25,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695409143] [2025-03-04 11:07:25,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:25,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:25,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:25,344 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 11:07:25,345 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 11:07:25,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:07:25,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:07:25,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:25,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:25,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:07:25,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:25,485 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:07:25,486 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:25,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:25,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106945561] [2025-03-04 11:07:25,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:25,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695409143] [2025-03-04 11:07:25,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695409143] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:25,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:07:25,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-04 11:07:25,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783145479] [2025-03-04 11:07:25,621 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:07:25,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:07:25,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:25,621 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:07:25,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:07:25,622 INFO L87 Difference]: Start difference. First operand 70 states and 72 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:07:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:25,754 INFO L93 Difference]: Finished difference Result 94 states and 104 transitions. [2025-03-04 11:07:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:07:25,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2025-03-04 11:07:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:25,755 INFO L225 Difference]: With dead ends: 94 [2025-03-04 11:07:25,755 INFO L226 Difference]: Without dead ends: 90 [2025-03-04 11:07:25,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:07:25,755 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 39 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:25,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 94 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:07:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2025-03-04 11:07:25,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2025-03-04 11:07:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 80 states have internal predecessors, (90), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-04 11:07:25,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2025-03-04 11:07:25,759 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 38 [2025-03-04 11:07:25,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:25,759 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2025-03-04 11:07:25,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:07:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2025-03-04 11:07:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-04 11:07:25,759 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:25,760 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:25,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-04 11:07:25,960 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,SelfDestructingSolverStorable11 [2025-03-04 11:07:25,960 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:25,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1335226347, now seen corresponding path program 1 times [2025-03-04 11:07:25,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454117772] [2025-03-04 11:07:25,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:25,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:25,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 11:07:25,968 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 11:07:25,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:25,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:25,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1038055093] [2025-03-04 11:07:25,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:25,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:25,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:25,970 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 11:07:25,971 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 11:07:25,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-04 11:07:25,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-04 11:07:25,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:25,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:25,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:07:25,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:07:26,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:26,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:26,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:26,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454117772] [2025-03-04 11:07:26,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:26,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038055093] [2025-03-04 11:07:26,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038055093] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:07:26,191 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:07:26,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2025-03-04 11:07:26,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738438348] [2025-03-04 11:07:26,192 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:07:26,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:07:26,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:26,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:07:26,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:07:26,192 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:07:27,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:27,136 INFO L93 Difference]: Finished difference Result 122 states and 147 transitions. [2025-03-04 11:07:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:07:27,136 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 39 [2025-03-04 11:07:27,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:27,137 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:07:27,137 INFO L226 Difference]: Without dead ends: 120 [2025-03-04 11:07:27,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:07:27,138 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:27,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 123 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-04 11:07:27,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-03-04 11:07:27,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 111. [2025-03-04 11:07:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 102 states have internal predecessors, (124), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:07:27,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2025-03-04 11:07:27,144 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 39 [2025-03-04 11:07:27,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:27,145 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2025-03-04 11:07:27,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:07:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2025-03-04 11:07:27,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-04 11:07:27,146 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:27,146 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:27,152 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 11:07:27,347 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,SelfDestructingSolverStorable12 [2025-03-04 11:07:27,347 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:27,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:27,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1042701623, now seen corresponding path program 1 times [2025-03-04 11:07:27,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:27,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080532397] [2025-03-04 11:07:27,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:27,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:27,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 11:07:27,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 11:07:27,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:27,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:27,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1400700962] [2025-03-04 11:07:27,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:27,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:27,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:27,357 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 11:07:27,358 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 11:07:27,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 11:07:27,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 11:07:27,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:27,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:27,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:07:27,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:27,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:27,490 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:07:27,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:27,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080532397] [2025-03-04 11:07:27,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:07:27,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400700962] [2025-03-04 11:07:27,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400700962] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:07:27,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:07:27,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2025-03-04 11:07:27,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553445740] [2025-03-04 11:07:27,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:07:27,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 11:07:27,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:27,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 11:07:27,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:07:27,595 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:07:31,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-04 11:07:35,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2025-03-04 11:07:37,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:37,269 INFO L93 Difference]: Finished difference Result 116 states and 136 transitions. [2025-03-04 11:07:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:07:37,269 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2025-03-04 11:07:37,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:37,270 INFO L225 Difference]: With dead ends: 116 [2025-03-04 11:07:37,270 INFO L226 Difference]: Without dead ends: 112 [2025-03-04 11:07:37,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:07:37,271 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 48 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:37,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 99 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 171 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2025-03-04 11:07:37,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2025-03-04 11:07:37,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 110. [2025-03-04 11:07:37,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 101 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:07:37,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2025-03-04 11:07:37,276 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 41 [2025-03-04 11:07:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:37,276 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2025-03-04 11:07:37,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.857142857142857) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:07:37,276 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2025-03-04 11:07:37,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-04 11:07:37,276 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:37,277 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:37,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-04 11:07:37,477 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,SelfDestructingSolverStorable13 [2025-03-04 11:07:37,477 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:37,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:37,477 INFO L85 PathProgramCache]: Analyzing trace with hash 221339051, now seen corresponding path program 1 times [2025-03-04 11:07:37,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740942206] [2025-03-04 11:07:37,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:37,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:37,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-04 11:07:37,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-04 11:07:37,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:37,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:07:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740942206] [2025-03-04 11:07:37,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740942206] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:37,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249786649] [2025-03-04 11:07:37,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:37,527 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 11:07:37,532 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 11:07:37,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-04 11:07:37,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-04 11:07:37,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:37,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:37,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:07:37,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:37,597 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:07:37,598 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:07:37,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249786649] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:07:37,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:07:37,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 11:07:37,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347642062] [2025-03-04 11:07:37,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:07:37,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:07:37,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:37,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:07:37,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:07:37,599 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:07:37,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:37,615 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2025-03-04 11:07:37,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:07:37,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2025-03-04 11:07:37,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:37,616 INFO L225 Difference]: With dead ends: 110 [2025-03-04 11:07:37,616 INFO L226 Difference]: Without dead ends: 109 [2025-03-04 11:07:37,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 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 11:07:37,616 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:37,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 106 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:07:37,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2025-03-04 11:07:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2025-03-04 11:07:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.2954545454545454) internal successors, (114), 100 states have internal predecessors, (114), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:07:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 126 transitions. [2025-03-04 11:07:37,623 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 126 transitions. Word has length 51 [2025-03-04 11:07:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:37,623 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 126 transitions. [2025-03-04 11:07:37,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:07:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 126 transitions. [2025-03-04 11:07:37,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-04 11:07:37,625 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:37,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:37,631 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 11:07:37,826 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,SelfDestructingSolverStorable14 [2025-03-04 11:07:37,826 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:37,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1728424013, now seen corresponding path program 1 times [2025-03-04 11:07:37,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:37,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338239739] [2025-03-04 11:07:37,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:37,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 11:07:37,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 11:07:37,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:37,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:07:37,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:07:37,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338239739] [2025-03-04 11:07:37,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338239739] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:07:37,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264710665] [2025-03-04 11:07:37,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:37,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:37,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:37,891 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 11:07:37,892 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 11:07:37,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 11:07:37,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 11:07:37,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:37,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:37,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:07:37,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:37,962 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:07:37,963 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:38,003 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:07:38,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264710665] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:07:38,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:07:38,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-04 11:07:38,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129439644] [2025-03-04 11:07:38,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:07:38,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:07:38,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:07:38,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:07:38,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:07:38,005 INFO L87 Difference]: Start difference. First operand 109 states and 126 transitions. Second operand has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:07:38,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:07:38,028 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2025-03-04 11:07:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:07:38,029 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 52 [2025-03-04 11:07:38,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:07:38,029 INFO L225 Difference]: With dead ends: 114 [2025-03-04 11:07:38,029 INFO L226 Difference]: Without dead ends: 113 [2025-03-04 11:07:38,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 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 11:07:38,030 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 25 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:07:38,030 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 218 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:07:38,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-03-04 11:07:38,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2025-03-04 11:07:38,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.2613636363636365) internal successors, (111), 99 states have internal predecessors, (111), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:07:38,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2025-03-04 11:07:38,036 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 52 [2025-03-04 11:07:38,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:07:38,036 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2025-03-04 11:07:38,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.166666666666666) internal successors, (79), 7 states have internal predecessors, (79), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-04 11:07:38,036 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2025-03-04 11:07:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-04 11:07:38,037 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:07:38,037 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:07:38,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-04 11:07:38,240 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,SelfDestructingSolverStorable15 [2025-03-04 11:07:38,240 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:07:38,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:07:38,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1135450864, now seen corresponding path program 1 times [2025-03-04 11:07:38,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:07:38,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148783440] [2025-03-04 11:07:38,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:38,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:07:38,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 11:07:38,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 11:07:38,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:38,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:07:38,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275255152] [2025-03-04 11:07:38,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:07:38,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:07:38,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:07:38,257 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 11:07:38,259 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 11:07:38,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 11:07:38,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 11:07:38,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:07:38,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:07:38,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:07:38,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:07:38,523 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 11:07:38,524 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:07:42,619 WARN L873 $PredicateComparison]: unable to prove that (< (let ((.cse0 (mod (+ 4294967295 |c_ULTIMATE.start_main_~z~0#1|) 4294967296))) (+ .cse0 (* |c_ULTIMATE.start_main_~x~0#1| (mod |c_ULTIMATE.start_main_~z~0#1| 4294967296) .cse0))) 9223372036854775807) is different from true [2025-03-04 11:08:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 10 not checked. [2025-03-04 11:08:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:15,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148783440] [2025-03-04 11:08:15,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:15,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275255152] [2025-03-04 11:08:15,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275255152] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:08:15,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:08:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-03-04 11:08:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822340744] [2025-03-04 11:08:15,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:08:15,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 11:08:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:15,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 11:08:15,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=100, Unknown=1, NotChecked=20, Total=156 [2025-03-04 11:08:15,057 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:08:16,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:08:18,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:08:19,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:08:21,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:08:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:08:21,326 INFO L93 Difference]: Finished difference Result 118 states and 133 transitions. [2025-03-04 11:08:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:08:21,327 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 54 [2025-03-04 11:08:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:08:21,328 INFO L225 Difference]: With dead ends: 118 [2025-03-04 11:08:21,328 INFO L226 Difference]: Without dead ends: 116 [2025-03-04 11:08:21,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=43, Invalid=116, Unknown=1, NotChecked=22, Total=182 [2025-03-04 11:08:21,328 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 123 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 107 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:08:21,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 109 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 256 Invalid, 4 Unknown, 107 Unchecked, 6.2s Time] [2025-03-04 11:08:21,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2025-03-04 11:08:21,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 110. [2025-03-04 11:08:21,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 90 states have (on average 1.2555555555555555) internal successors, (113), 101 states have internal predecessors, (113), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:08:21,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 125 transitions. [2025-03-04 11:08:21,333 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 125 transitions. Word has length 54 [2025-03-04 11:08:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:08:21,334 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 125 transitions. [2025-03-04 11:08:21,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 13 states have internal predecessors, (77), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:08:21,334 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 125 transitions. [2025-03-04 11:08:21,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-03-04 11:08:21,334 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:08:21,334 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:08:21,340 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 11:08:21,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-04 11:08:21,539 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:08:21,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:08:21,539 INFO L85 PathProgramCache]: Analyzing trace with hash 839238392, now seen corresponding path program 1 times [2025-03-04 11:08:21,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:08:21,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312235426] [2025-03-04 11:08:21,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:21,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:08:21,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-04 11:08:21,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-04 11:08:21,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:21,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:08:21,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886819793] [2025-03-04 11:08:21,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:21,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:21,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:08:21,560 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 11:08:21,561 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 11:08:21,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-04 11:08:21,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-04 11:08:21,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:21,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:08:21,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:08:21,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:08:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:08:26,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:08:29,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:29,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312235426] [2025-03-04 11:08:29,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:29,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886819793] [2025-03-04 11:08:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886819793] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:08:29,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:08:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:08:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535781243] [2025-03-04 11:08:29,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:08:29,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:08:29,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:29,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:08:29,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=57, Unknown=1, NotChecked=0, Total=90 [2025-03-04 11:08:29,660 INFO L87 Difference]: Start difference. First operand 110 states and 125 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:08:33,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:08:34,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:08:34,317 INFO L93 Difference]: Finished difference Result 110 states and 125 transitions. [2025-03-04 11:08:34,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:08:34,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2025-03-04 11:08:34,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:08:34,318 INFO L225 Difference]: With dead ends: 110 [2025-03-04 11:08:34,319 INFO L226 Difference]: Without dead ends: 104 [2025-03-04 11:08:34,319 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=49, Invalid=82, Unknown=1, NotChecked=0, Total=132 [2025-03-04 11:08:34,319 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 34 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:08:34,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 74 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 118 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2025-03-04 11:08:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2025-03-04 11:08:34,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2025-03-04 11:08:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 85 states have (on average 1.2352941176470589) internal successors, (105), 95 states have internal predecessors, (105), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 11:08:34,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 117 transitions. [2025-03-04 11:08:34,324 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 117 transitions. Word has length 55 [2025-03-04 11:08:34,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:08:34,325 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 117 transitions. [2025-03-04 11:08:34,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-04 11:08:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 117 transitions. [2025-03-04 11:08:34,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-04 11:08:34,325 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:08:34,325 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:08:34,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 11:08:34,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:34,526 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:08:34,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:08:34,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1452487699, now seen corresponding path program 1 times [2025-03-04 11:08:34,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:08:34,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053325150] [2025-03-04 11:08:34,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:34,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:08:34,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 11:08:34,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 11:08:34,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:34,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:08:34,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [284335323] [2025-03-04 11:08:34,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:34,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:34,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:08:34,540 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 11:08:34,541 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 11:08:34,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 11:08:34,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 11:08:34,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:34,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:08:34,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:08:34,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:08:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:08:34,751 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:08:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:08:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:35,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053325150] [2025-03-04 11:08:35,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:35,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284335323] [2025-03-04 11:08:35,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284335323] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:08:35,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:08:35,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2025-03-04 11:08:35,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800016264] [2025-03-04 11:08:35,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:08:35,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:08:35,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:35,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:08:35,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:08:35,092 INFO L87 Difference]: Start difference. First operand 104 states and 117 transitions. Second operand has 16 states, 15 states have (on average 6.0) internal successors, (90), 16 states have internal predecessors, (90), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:08:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:08:36,274 INFO L93 Difference]: Finished difference Result 122 states and 144 transitions. [2025-03-04 11:08:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 11:08:36,274 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.0) internal successors, (90), 16 states have internal predecessors, (90), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 58 [2025-03-04 11:08:36,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:08:36,275 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:08:36,275 INFO L226 Difference]: Without dead ends: 121 [2025-03-04 11:08:36,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:08:36,275 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 146 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:08:36,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 111 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 11:08:36,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2025-03-04 11:08:36,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2025-03-04 11:08:36,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 99 states have (on average 1.2525252525252526) internal successors, (124), 109 states have internal predecessors, (124), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:08:36,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2025-03-04 11:08:36,284 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 58 [2025-03-04 11:08:36,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:08:36,284 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2025-03-04 11:08:36,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.0) internal successors, (90), 16 states have internal predecessors, (90), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:08:36,284 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2025-03-04 11:08:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-04 11:08:36,284 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:08:36,284 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:08:36,290 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 11:08:36,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:36,485 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:08:36,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:08:36,485 INFO L85 PathProgramCache]: Analyzing trace with hash 23693067, now seen corresponding path program 2 times [2025-03-04 11:08:36,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:08:36,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913605358] [2025-03-04 11:08:36,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:08:36,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:08:36,489 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-04 11:08:36,499 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:08:36,499 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:08:36,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:08:36,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936240650] [2025-03-04 11:08:36,499 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:08:36,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:36,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:08:36,502 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 11:08:36,504 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 11:08:36,524 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-04 11:08:36,538 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:08:36,539 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:08:36,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:08:36,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:08:36,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:08:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 11:08:36,718 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:08:36,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:36,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913605358] [2025-03-04 11:08:36,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:36,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936240650] [2025-03-04 11:08:36,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936240650] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:08:36,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:08:36,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:08:36,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18864299] [2025-03-04 11:08:36,839 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:08:36,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:08:36,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:36,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:08:36,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:08:36,840 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:08:37,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:08:37,051 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2025-03-04 11:08:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:08:37,052 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 60 [2025-03-04 11:08:37,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:08:37,052 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:08:37,052 INFO L226 Difference]: Without dead ends: 119 [2025-03-04 11:08:37,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:08:37,053 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 46 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:08:37,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 110 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:08:37,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-03-04 11:08:37,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2025-03-04 11:08:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 99 states have (on average 1.2222222222222223) internal successors, (121), 109 states have internal predecessors, (121), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:08:37,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 135 transitions. [2025-03-04 11:08:37,058 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 135 transitions. Word has length 60 [2025-03-04 11:08:37,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:08:37,058 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 135 transitions. [2025-03-04 11:08:37,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-04 11:08:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 135 transitions. [2025-03-04 11:08:37,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-04 11:08:37,060 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:08:37,060 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:08:37,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-04 11:08:37,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:37,261 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:08:37,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:08:37,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1294201385, now seen corresponding path program 1 times [2025-03-04 11:08:37,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:08:37,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173715539] [2025-03-04 11:08:37,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:37,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:08:37,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 11:08:37,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 11:08:37,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:37,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:08:37,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850314464] [2025-03-04 11:08:37,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:37,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:37,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:08:37,272 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 11:08:37,273 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 11:08:37,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-04 11:08:37,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-04 11:08:37,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:37,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:08:37,303 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 11:08:37,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:08:37,720 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 26 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 11:08:37,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:08:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-04 11:08:37,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173715539] [2025-03-04 11:08:37,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:37,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850314464] [2025-03-04 11:08:37,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850314464] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 11:08:37,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:08:37,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 11 [2025-03-04 11:08:37,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799065838] [2025-03-04 11:08:37,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:08:37,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:08:37,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:37,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:08:37,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:08:37,821 INFO L87 Difference]: Start difference. First operand 119 states and 135 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:08:37,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:08:37,907 INFO L93 Difference]: Finished difference Result 119 states and 135 transitions. [2025-03-04 11:08:37,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:08:37,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2025-03-04 11:08:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:08:37,908 INFO L225 Difference]: With dead ends: 119 [2025-03-04 11:08:37,908 INFO L226 Difference]: Without dead ends: 118 [2025-03-04 11:08:37,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:08:37,908 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:08:37,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 35 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:08:37,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-04 11:08:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2025-03-04 11:08:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.1919191919191918) internal successors, (118), 108 states have internal predecessors, (118), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:08:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 132 transitions. [2025-03-04 11:08:37,916 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 132 transitions. Word has length 62 [2025-03-04 11:08:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:08:37,916 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 132 transitions. [2025-03-04 11:08:37,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:08:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 132 transitions. [2025-03-04 11:08:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-04 11:08:37,916 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:08:37,916 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:08:37,923 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 11:08:38,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:38,118 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:08:38,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:08:38,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1812984505, now seen corresponding path program 1 times [2025-03-04 11:08:38,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:08:38,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972926923] [2025-03-04 11:08:38,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:38,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:08:38,121 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 11:08:38,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 11:08:38,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:38,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:08:38,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383528991] [2025-03-04 11:08:38,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:38,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:38,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:08:38,132 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 11:08:38,134 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 11:08:38,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 11:08:38,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 11:08:38,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:38,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:08:38,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 11:08:38,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:08:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 11:08:38,375 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:08:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-04 11:08:38,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:38,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972926923] [2025-03-04 11:08:38,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:38,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383528991] [2025-03-04 11:08:38,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383528991] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 11:08:38,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:08:38,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2025-03-04 11:08:38,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846960764] [2025-03-04 11:08:38,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:08:38,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 11:08:38,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:38,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 11:08:38,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:08:38,511 INFO L87 Difference]: Start difference. First operand 118 states and 132 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:08:38,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:08:38,917 INFO L93 Difference]: Finished difference Result 118 states and 132 transitions. [2025-03-04 11:08:38,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:08:38,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 64 [2025-03-04 11:08:38,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:08:38,918 INFO L225 Difference]: With dead ends: 118 [2025-03-04 11:08:38,918 INFO L226 Difference]: Without dead ends: 117 [2025-03-04 11:08:38,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:08:38,919 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 44 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 11:08:38,919 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 94 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 11:08:38,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2025-03-04 11:08:38,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2025-03-04 11:08:38,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 107 states have internal predecessors, (115), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 11:08:38,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2025-03-04 11:08:38,932 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 64 [2025-03-04 11:08:38,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:08:38,932 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2025-03-04 11:08:38,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:08:38,932 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2025-03-04 11:08:38,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-04 11:08:38,933 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:08:38,933 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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 11:08:38,938 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 11:08:39,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:39,133 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2025-03-04 11:08:39,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:08:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1478613093, now seen corresponding path program 1 times [2025-03-04 11:08:39,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:08:39,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750126524] [2025-03-04 11:08:39,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:39,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:08:39,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 11:08:39,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 11:08:39,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:39,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:08:39,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1909138536] [2025-03-04 11:08:39,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:08:39,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:08:39,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:08:39,147 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 11:08:39,147 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 11:08:39,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 11:08:39,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 11:08:39,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:08:39,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:08:39,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-04 11:08:39,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:08:39,392 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 11:08:39,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:08:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-03-04 11:08:47,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:08:47,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750126524] [2025-03-04 11:08:47,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:08:47,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909138536] [2025-03-04 11:08:47,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909138536] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 11:08:47,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:08:47,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2025-03-04 11:08:47,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242696885] [2025-03-04 11:08:47,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:08:47,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 11:08:47,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:08:47,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 11:08:47,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=136, Unknown=2, NotChecked=0, Total=182 [2025-03-04 11:08:47,777 INFO L87 Difference]: Start difference. First operand 117 states and 129 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2025-03-04 11:08:49,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []