./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.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/mannadiv_valuebound2.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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 11:14:44,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 11:14:44,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 11:14:44,537 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 11:14:44,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 11:14:44,565 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 11:14:44,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 11:14:44,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 11:14:44,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 11:14:44,566 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 11:14:44,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 11:14:44,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 11:14:44,566 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 11:14:44,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 11:14:44,566 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 11:14:44,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 11:14:44,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 11:14:44,567 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 11:14:44,568 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 11:14:44,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 11:14:44,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 11:14:44,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 11:14:44,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 11:14:44,569 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 11:14:44,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:44,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 11:14:44,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 11:14:44,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 11:14:44,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 11:14:44,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 11:14:44,571 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 -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2025-03-04 11:14:44,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 11:14:44,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 11:14:44,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 11:14:44,805 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 11:14:44,806 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 11:14:44,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2025-03-04 11:14:45,965 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed54fb86d/8c293cb5742d416ebe6d7bef6f26b7ac/FLAGa21940765 [2025-03-04 11:14:46,194 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 11:14:46,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound2.c [2025-03-04 11:14:46,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed54fb86d/8c293cb5742d416ebe6d7bef6f26b7ac/FLAGa21940765 [2025-03-04 11:14:46,544 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed54fb86d/8c293cb5742d416ebe6d7bef6f26b7ac [2025-03-04 11:14:46,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 11:14:46,547 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 11:14:46,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:46,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 11:14:46,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 11:14:46,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c7e046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46, skipping insertion in model container [2025-03-04 11:14:46,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 11:14:46,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:46,684 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 11:14:46,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 11:14:46,706 INFO L204 MainTranslator]: Completed translation [2025-03-04 11:14:46,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46 WrapperNode [2025-03-04 11:14:46,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 11:14:46,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:46,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 11:14:46,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 11:14:46,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,716 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,728 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2025-03-04 11:14:46,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 11:14:46,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 11:14:46,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 11:14:46,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 11:14:46,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,752 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-04 11:14:46,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,754 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 11:14:46,762 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 11:14:46,762 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 11:14:46,762 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 11:14:46,762 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (1/1) ... [2025-03-04 11:14:46,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 11:14:46,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:46,791 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 11:14:46,793 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 11:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 11:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 11:14:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 11:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 11:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 11:14:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 11:14:46,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 11:14:46,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 11:14:46,844 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 11:14:46,845 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 11:14:46,978 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2025-03-04 11:14:46,979 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 11:14:46,985 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 11:14:46,985 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 11:14:46,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:14:46 BoogieIcfgContainer [2025-03-04 11:14:46,986 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 11:14:46,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 11:14:46,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 11:14:46,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 11:14:46,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 11:14:46" (1/3) ... [2025-03-04 11:14:46,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2546bf63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:14:46, skipping insertion in model container [2025-03-04 11:14:46,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 11:14:46" (2/3) ... [2025-03-04 11:14:46,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2546bf63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:14:46, skipping insertion in model container [2025-03-04 11:14:46,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 11:14:46" (3/3) ... [2025-03-04 11:14:46,993 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound2.c [2025-03-04 11:14:47,003 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 11:14:47,004 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_valuebound2.c that has 3 procedures, 63 locations, 1 initial locations, 1 loop locations, and 20 error locations. [2025-03-04 11:14:47,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 11:14:47,057 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;@35e59bae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 11:14:47,057 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-04 11:14:47,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 56 states have internal predecessors, (61), 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 11:14:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-04 11:14:47,066 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:47,067 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:47,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:47,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:47,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1572191034, now seen corresponding path program 1 times [2025-03-04 11:14:47,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:47,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703772098] [2025-03-04 11:14:47,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:47,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:47,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:47,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,174 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 11:14:47,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:47,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703772098] [2025-03-04 11:14:47,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703772098] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:47,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263988902] [2025-03-04 11:14:47,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:47,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:47,179 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 11:14:47,180 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 11:14:47,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:47,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:47,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 11:14:47,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:47,234 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 11:14:47,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:47,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263988902] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:47,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:47,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 11:14:47,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878474377] [2025-03-04 11:14:47,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 11:14:47,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:47,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 11:14:47,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 11:14:47,252 INFO L87 Difference]: Start difference. First operand has 63 states, 36 states have (on average 1.6944444444444444) internal successors, (61), 56 states have internal predecessors, (61), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11:14:47,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:47,265 INFO L93 Difference]: Finished difference Result 122 states and 137 transitions. [2025-03-04 11:14:47,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 11:14:47,266 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 14 [2025-03-04 11:14:47,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:47,270 INFO L225 Difference]: With dead ends: 122 [2025-03-04 11:14:47,270 INFO L226 Difference]: Without dead ends: 56 [2025-03-04 11:14:47,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 11:14:47,273 INFO L435 NwaCegarLoop]: 65 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, 65 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 11:14:47,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:47,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-03-04 11:14:47,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-03-04 11:14:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 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 11:14:47,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2025-03-04 11:14:47,298 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2025-03-04 11:14:47,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:47,298 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2025-03-04 11:14:47,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11:14:47,299 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2025-03-04 11:14:47,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-04 11:14:47,299 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:47,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:47,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:47,500 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 11:14:47,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:47,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:47,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1376601050, now seen corresponding path program 1 times [2025-03-04 11:14:47,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:47,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148766492] [2025-03-04 11:14:47,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:47,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:47,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:47,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:47,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140505222] [2025-03-04 11:14:47,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:47,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:47,525 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 11:14:47,526 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 11:14:47,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 11:14:47,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 11:14:47,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 11:14:47,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:47,587 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 11:14:47,588 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:47,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148766492] [2025-03-04 11:14:47,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140505222] [2025-03-04 11:14:47,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140505222] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:47,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 11:14:47,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880528387] [2025-03-04 11:14:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 11:14:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:47,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 11:14:47,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 11:14:47,591 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 11:14:47,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:47,656 INFO L93 Difference]: Finished difference Result 89 states and 99 transitions. [2025-03-04 11:14:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 11:14:47,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 14 [2025-03-04 11:14:47,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:47,659 INFO L225 Difference]: With dead ends: 89 [2025-03-04 11:14:47,659 INFO L226 Difference]: Without dead ends: 83 [2025-03-04 11:14:47,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 11:14:47,660 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:47,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:47,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-03-04 11:14:47,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2025-03-04 11:14:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 68 states have internal predecessors, (82), 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 11:14:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2025-03-04 11:14:47,671 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 14 [2025-03-04 11:14:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:47,672 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2025-03-04 11:14:47,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 11:14:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2025-03-04 11:14:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 11:14:47,674 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:47,674 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:47,684 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 11:14:47,878 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 11:14:47,878 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:47,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash 63682360, now seen corresponding path program 1 times [2025-03-04 11:14:47,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:47,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627676967] [2025-03-04 11:14:47,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:47,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:47,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 11:14:47,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 11:14:47,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:47,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:47,986 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 11:14:47,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:47,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627676967] [2025-03-04 11:14:47,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627676967] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:47,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:47,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181045215] [2025-03-04 11:14:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:47,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:47,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:47,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:47,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:47,987 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11:14:48,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:48,073 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2025-03-04 11:14:48,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:48,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 16 [2025-03-04 11:14:48,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:48,074 INFO L225 Difference]: With dead ends: 117 [2025-03-04 11:14:48,075 INFO L226 Difference]: Without dead ends: 110 [2025-03-04 11:14:48,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:48,075 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 33 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:48,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 71 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:48,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2025-03-04 11:14:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2025-03-04 11:14:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 97 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 11:14:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2025-03-04 11:14:48,083 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 16 [2025-03-04 11:14:48,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:48,083 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2025-03-04 11:14:48,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11:14:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2025-03-04 11:14:48,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-04 11:14:48,083 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:48,083 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:48,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 11:14:48,084 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:48,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:48,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1974153171, now seen corresponding path program 1 times [2025-03-04 11:14:48,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:48,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633943367] [2025-03-04 11:14:48,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:48,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 11:14:48,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 11:14:48,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,154 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 11:14:48,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:48,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633943367] [2025-03-04 11:14:48,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633943367] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:48,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:48,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:48,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141369101] [2025-03-04 11:14:48,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:48,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:48,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:48,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:48,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:48,156 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 11:14:48,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:48,223 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2025-03-04 11:14:48,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:48,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 17 [2025-03-04 11:14:48,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:48,225 INFO L225 Difference]: With dead ends: 112 [2025-03-04 11:14:48,225 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:14:48,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:48,227 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 31 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:48,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 75 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:14:48,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2025-03-04 11:14:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5616438356164384) internal successors, (114), 92 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 11:14:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 126 transitions. [2025-03-04 11:14:48,239 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 126 transitions. Word has length 17 [2025-03-04 11:14:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:48,240 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 126 transitions. [2025-03-04 11:14:48,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 11:14:48,240 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 126 transitions. [2025-03-04 11:14:48,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 11:14:48,240 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:48,240 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:48,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 11:14:48,241 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:48,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:48,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1069206166, now seen corresponding path program 1 times [2025-03-04 11:14:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:48,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951991835] [2025-03-04 11:14:48,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:48,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:14:48,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:14:48,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,359 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 11:14:48,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:48,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951991835] [2025-03-04 11:14:48,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951991835] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:48,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555960229] [2025-03-04 11:14:48,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:48,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:48,364 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 11:14:48,365 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 11:14:48,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 11:14:48,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 11:14:48,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:48,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:48,477 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 11:14:48,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:48,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555960229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:48,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:48,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-04 11:14:48,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207023632] [2025-03-04 11:14:48,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:48,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:48,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:48,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:48,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:48,479 INFO L87 Difference]: Start difference. First operand 101 states and 126 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11:14:48,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:48,555 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2025-03-04 11:14:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:48,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 18 [2025-03-04 11:14:48,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:48,556 INFO L225 Difference]: With dead ends: 104 [2025-03-04 11:14:48,556 INFO L226 Difference]: Without dead ends: 103 [2025-03-04 11:14:48,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:48,557 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:48,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 62 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:48,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2025-03-04 11:14:48,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 101. [2025-03-04 11:14:48,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.547945205479452) internal successors, (113), 92 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 11:14:48,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 125 transitions. [2025-03-04 11:14:48,563 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 125 transitions. Word has length 18 [2025-03-04 11:14:48,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:48,563 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 125 transitions. [2025-03-04 11:14:48,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11:14:48,564 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 125 transitions. [2025-03-04 11:14:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 11:14:48,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:48,564 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:48,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:48,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:48,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:48,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:48,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1214347215, now seen corresponding path program 1 times [2025-03-04 11:14:48,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:48,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478610960] [2025-03-04 11:14:48,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:48,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:14:48,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:14:48,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:48,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757458408] [2025-03-04 11:14:48,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:48,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:48,782 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 11:14:48,784 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 11:14:48,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 11:14:48,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 11:14:48,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:48,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:48,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:48,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:48,863 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 11:14:48,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:48,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:48,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478610960] [2025-03-04 11:14:48,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:48,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757458408] [2025-03-04 11:14:48,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757458408] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:48,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:48,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:48,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427413117] [2025-03-04 11:14:48,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:48,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:48,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:48,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:48,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:48,865 INFO L87 Difference]: Start difference. First operand 101 states and 125 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 11:14:48,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:48,955 INFO L93 Difference]: Finished difference Result 102 states and 125 transitions. [2025-03-04 11:14:48,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:48,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 11:14:48,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:48,956 INFO L225 Difference]: With dead ends: 102 [2025-03-04 11:14:48,956 INFO L226 Difference]: Without dead ends: 101 [2025-03-04 11:14:48,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 11:14:48,957 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 63 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:48,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 67 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:48,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2025-03-04 11:14:48,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2025-03-04 11:14:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 92 states have internal predecessors, (112), 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 11:14:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 124 transitions. [2025-03-04 11:14:48,964 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 124 transitions. Word has length 19 [2025-03-04 11:14:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:48,964 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 124 transitions. [2025-03-04 11:14:48,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 11:14:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 124 transitions. [2025-03-04 11:14:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 11:14:48,965 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:48,965 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 11:14:48,971 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 11:14:49,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,166 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:49,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:49,166 INFO L85 PathProgramCache]: Analyzing trace with hash 166554239, now seen corresponding path program 1 times [2025-03-04 11:14:49,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:49,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789816398] [2025-03-04 11:14:49,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:49,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:14:49,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:14:49,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,253 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 11:14:49,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789816398] [2025-03-04 11:14:49,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789816398] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:49,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852166761] [2025-03-04 11:14:49,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:49,255 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 11:14:49,256 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 11:14:49,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 11:14:49,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 11:14:49,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:49,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:49,336 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 11:14:49,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:49,422 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 11:14:49,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852166761] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:49,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:49,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-03-04 11:14:49,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91093354] [2025-03-04 11:14:49,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:49,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:49,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:49,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:49,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:49,425 INFO L87 Difference]: Start difference. First operand 101 states and 124 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:49,510 INFO L93 Difference]: Finished difference Result 152 states and 189 transitions. [2025-03-04 11:14:49,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:49,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2025-03-04 11:14:49,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:49,511 INFO L225 Difference]: With dead ends: 152 [2025-03-04 11:14:49,511 INFO L226 Difference]: Without dead ends: 150 [2025-03-04 11:14:49,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:49,512 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 120 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:49,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 236 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:49,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-03-04 11:14:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 140. [2025-03-04 11:14:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 110 states have (on average 1.5272727272727273) internal successors, (168), 129 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2025-03-04 11:14:49,520 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 31 [2025-03-04 11:14:49,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:49,520 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2025-03-04 11:14:49,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2025-03-04 11:14:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 11:14:49,521 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:49,521 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 11:14:49,527 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 11:14:49,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,722 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:49,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash 868214095, now seen corresponding path program 1 times [2025-03-04 11:14:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745754146] [2025-03-04 11:14:49,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:49,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 11:14:49,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 11:14:49,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,751 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 11:14:49,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:49,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745754146] [2025-03-04 11:14:49,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745754146] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:49,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:14:49,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 11:14:49,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523609468] [2025-03-04 11:14:49,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:49,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 11:14:49,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:49,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 11:14:49,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 11:14:49,753 INFO L87 Difference]: Start difference. First operand 140 states and 184 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 11:14:49,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:49,780 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2025-03-04 11:14:49,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 11:14:49,781 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 11:14:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:49,782 INFO L225 Difference]: With dead ends: 140 [2025-03-04 11:14:49,782 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:14:49,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:14:49,782 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 56 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:49,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 72 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:49,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:14:49,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2025-03-04 11:14:49,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 110 states have (on average 1.481818181818182) internal successors, (163), 127 states have internal predecessors, (163), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 179 transitions. [2025-03-04 11:14:49,795 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 179 transitions. Word has length 32 [2025-03-04 11:14:49,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:49,796 INFO L471 AbstractCegarLoop]: Abstraction has 138 states and 179 transitions. [2025-03-04 11:14:49,796 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 11:14:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 179 transitions. [2025-03-04 11:14:49,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 11:14:49,796 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:49,796 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 11:14:49,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 11:14:49,796 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:49,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:49,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1144833186, now seen corresponding path program 1 times [2025-03-04 11:14:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:49,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643878547] [2025-03-04 11:14:49,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:49,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:14:49,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:14:49,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:49,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581900342] [2025-03-04 11:14:49,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:49,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:49,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:49,810 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 11:14:49,812 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 11:14:49,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 11:14:49,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 11:14:49,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:49,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:49,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:49,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:49,937 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 11:14:49,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:50,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643878547] [2025-03-04 11:14:50,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:50,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581900342] [2025-03-04 11:14:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581900342] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:50,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:50,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:14:50,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561507911] [2025-03-04 11:14:50,094 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:50,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:50,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:50,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:50,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:50,096 INFO L87 Difference]: Start difference. First operand 138 states and 179 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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 11:14:50,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:50,191 INFO L93 Difference]: Finished difference Result 145 states and 182 transitions. [2025-03-04 11:14:50,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:50,192 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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 11:14:50,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:50,194 INFO L225 Difference]: With dead ends: 145 [2025-03-04 11:14:50,194 INFO L226 Difference]: Without dead ends: 138 [2025-03-04 11:14:50,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:50,195 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 50 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:50,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 51 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2025-03-04 11:14:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 134. [2025-03-04 11:14:50,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 111 states have (on average 1.3603603603603605) internal successors, (151), 123 states have internal predecessors, (151), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:14:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2025-03-04 11:14:50,207 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 33 [2025-03-04 11:14:50,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:50,208 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2025-03-04 11:14:50,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 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 11:14:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2025-03-04 11:14:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 11:14:50,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:50,209 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] [2025-03-04 11:14:50,216 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 11:14:50,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:50,410 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:50,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:50,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1130090413, now seen corresponding path program 1 times [2025-03-04 11:14:50,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:50,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723806778] [2025-03-04 11:14:50,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:50,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:50,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:14:50,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:14:50,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:50,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:50,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963547554] [2025-03-04 11:14:50,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:50,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:50,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:50,429 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 11:14:50,430 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 11:14:50,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 11:14:50,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 11:14:50,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:50,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:50,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:14:50,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:50,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:50,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:50,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:50,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723806778] [2025-03-04 11:14:50,737 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:50,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963547554] [2025-03-04 11:14:50,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963547554] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:50,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:50,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 11:14:50,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793646219] [2025-03-04 11:14:50,737 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:50,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:50,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:50,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:50,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:50,738 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 11:14:50,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:50,837 INFO L93 Difference]: Finished difference Result 180 states and 223 transitions. [2025-03-04 11:14:50,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:14:50,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 11:14:50,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:50,838 INFO L225 Difference]: With dead ends: 180 [2025-03-04 11:14:50,838 INFO L226 Difference]: Without dead ends: 177 [2025-03-04 11:14:50,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:50,839 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 63 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:50,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 102 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:50,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-04 11:14:50,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 169. [2025-03-04 11:14:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 144 states have (on average 1.3472222222222223) internal successors, (194), 156 states have internal predecessors, (194), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:50,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 214 transitions. [2025-03-04 11:14:50,847 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 214 transitions. Word has length 34 [2025-03-04 11:14:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:50,848 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 214 transitions. [2025-03-04 11:14:50,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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 11:14:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 214 transitions. [2025-03-04 11:14:50,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 11:14:50,851 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:50,851 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] [2025-03-04 11:14:50,857 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 11:14:51,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:51,055 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:51,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:51,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1162629343, now seen corresponding path program 1 times [2025-03-04 11:14:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:51,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124105407] [2025-03-04 11:14:51,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:51,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:14:51,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:14:51,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:51,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:51,116 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 11:14:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124105407] [2025-03-04 11:14:51,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124105407] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603105973] [2025-03-04 11:14:51,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:51,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:51,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:51,118 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 11:14:51,120 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 11:14:51,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 11:14:51,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 11:14:51,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:51,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:51,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:51,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:51,234 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:14:51,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603105973] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:14:51,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:14:51,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-04 11:14:51,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977517777] [2025-03-04 11:14:51,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:14:51,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:14:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:51,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:14:51,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:51,236 INFO L87 Difference]: Start difference. First operand 169 states and 214 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 11:14:51,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:51,294 INFO L93 Difference]: Finished difference Result 169 states and 214 transitions. [2025-03-04 11:14:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:51,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 35 [2025-03-04 11:14:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:51,296 INFO L225 Difference]: With dead ends: 169 [2025-03-04 11:14:51,296 INFO L226 Difference]: Without dead ends: 167 [2025-03-04 11:14:51,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:14:51,297 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:51,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 51 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:51,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-04 11:14:51,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2025-03-04 11:14:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 151 states have internal predecessors, (188), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 208 transitions. [2025-03-04 11:14:51,304 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 208 transitions. Word has length 35 [2025-03-04 11:14:51,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:51,304 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 208 transitions. [2025-03-04 11:14:51,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 11:14:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 208 transitions. [2025-03-04 11:14:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-03-04 11:14:51,305 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:51,305 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:51,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:51,509 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,SelfDestructingSolverStorable10 [2025-03-04 11:14:51,509 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:51,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:51,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1681771276, now seen corresponding path program 1 times [2025-03-04 11:14:51,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:51,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533084619] [2025-03-04 11:14:51,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:51,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:51,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:14:51,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:14:51,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:51,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:51,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:51,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533084619] [2025-03-04 11:14:51,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533084619] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:51,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971398412] [2025-03-04 11:14:51,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:51,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:51,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:51,648 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 11:14:51,649 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 11:14:51,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-04 11:14:51,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-04 11:14:51,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:51,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:51,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:51,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:51,734 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:51,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:51,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971398412] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:51,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:51,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2025-03-04 11:14:51,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230631516] [2025-03-04 11:14:51,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:51,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:14:51,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:51,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:14:51,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:51,811 INFO L87 Difference]: Start difference. First operand 164 states and 208 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 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 11:14:52,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:52,163 INFO L93 Difference]: Finished difference Result 176 states and 212 transitions. [2025-03-04 11:14:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:14:52,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 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 36 [2025-03-04 11:14:52,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:52,165 INFO L225 Difference]: With dead ends: 176 [2025-03-04 11:14:52,165 INFO L226 Difference]: Without dead ends: 161 [2025-03-04 11:14:52,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:14:52,165 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 102 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:52,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 120 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:52,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2025-03-04 11:14:52,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 155. [2025-03-04 11:14:52,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 133 states have (on average 1.263157894736842) internal successors, (168), 142 states have internal predecessors, (168), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:52,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 188 transitions. [2025-03-04 11:14:52,172 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 188 transitions. Word has length 36 [2025-03-04 11:14:52,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:52,172 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 188 transitions. [2025-03-04 11:14:52,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 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 11:14:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 188 transitions. [2025-03-04 11:14:52,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 11:14:52,172 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:52,173 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] [2025-03-04 11:14:52,178 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 11:14:52,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:52,373 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:52,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:52,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1725126818, now seen corresponding path program 1 times [2025-03-04 11:14:52,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:52,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999562503] [2025-03-04 11:14:52,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:52,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:52,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:14:52,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:14:52,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:52,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:52,489 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:52,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:52,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999562503] [2025-03-04 11:14:52,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999562503] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:52,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982625145] [2025-03-04 11:14:52,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:52,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:52,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:52,492 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 11:14:52,493 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 11:14:52,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 11:14:52,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 11:14:52,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:52,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:52,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:52,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:52,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:52,801 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:14:52,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982625145] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:52,801 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:52,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2025-03-04 11:14:52,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286771434] [2025-03-04 11:14:52,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:52,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:14:52,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:52,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:14:52,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:14:52,803 INFO L87 Difference]: Start difference. First operand 155 states and 188 transitions. Second operand has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 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 11:14:53,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:53,078 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2025-03-04 11:14:53,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 11:14:53,078 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 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 37 [2025-03-04 11:14:53,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:53,079 INFO L225 Difference]: With dead ends: 156 [2025-03-04 11:14:53,079 INFO L226 Difference]: Without dead ends: 153 [2025-03-04 11:14:53,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2025-03-04 11:14:53,081 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 99 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:53,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 158 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:53,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-04 11:14:53,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 131. [2025-03-04 11:14:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 113 states have (on average 1.2035398230088497) internal successors, (136), 119 states have internal predecessors, (136), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-04 11:14:53,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2025-03-04 11:14:53,090 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 37 [2025-03-04 11:14:53,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:53,091 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2025-03-04 11:14:53,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 16 states have internal predecessors, (49), 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 11:14:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2025-03-04 11:14:53,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 11:14:53,092 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:53,092 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:53,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:53,293 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,SelfDestructingSolverStorable12 [2025-03-04 11:14:53,293 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:53,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:53,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1939323799, now seen corresponding path program 1 times [2025-03-04 11:14:53,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:53,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022188610] [2025-03-04 11:14:53,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:53,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:53,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:14:53,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:14:53,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:53,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:53,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2113672811] [2025-03-04 11:14:53,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:53,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:53,307 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 11:14:53,308 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 11:14:53,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 11:14:53,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 11:14:53,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:53,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:53,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:14:53,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:53,463 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:53,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:53,559 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:14:53,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:53,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022188610] [2025-03-04 11:14:53,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:53,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113672811] [2025-03-04 11:14:53,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113672811] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:53,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:53,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-04 11:14:53,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269420315] [2025-03-04 11:14:53,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:53,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:53,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:53,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:53,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:53,561 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 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 11:14:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:53,748 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2025-03-04 11:14:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 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 38 [2025-03-04 11:14:53,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:53,750 INFO L225 Difference]: With dead ends: 209 [2025-03-04 11:14:53,750 INFO L226 Difference]: Without dead ends: 145 [2025-03-04 11:14:53,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:14:53,751 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 76 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:53,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 81 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:53,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2025-03-04 11:14:53,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2025-03-04 11:14:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 132 states have internal predecessors, (146), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 11:14:53,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 166 transitions. [2025-03-04 11:14:53,758 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 166 transitions. Word has length 38 [2025-03-04 11:14:53,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:53,758 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 166 transitions. [2025-03-04 11:14:53,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.0) internal successors, (50), 11 states have internal predecessors, (50), 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 11:14:53,758 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 166 transitions. [2025-03-04 11:14:53,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 11:14:53,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:53,758 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:53,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-04 11:14:53,959 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,SelfDestructingSolverStorable13 [2025-03-04 11:14:53,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:53,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:53,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1706353547, now seen corresponding path program 2 times [2025-03-04 11:14:53,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:53,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435325361] [2025-03-04 11:14:53,960 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:53,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:53,964 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-04 11:14:53,970 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:14:53,970 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:53,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:53,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036651199] [2025-03-04 11:14:53,971 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:53,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:53,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:53,973 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 11:14:53,975 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 11:14:53,993 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 53 statements into 2 equivalence classes. [2025-03-04 11:14:54,006 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:14:54,006 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:54,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:54,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:14:54,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:54,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 11:14:54,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:54,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435325361] [2025-03-04 11:14:54,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:14:54,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036651199] [2025-03-04 11:14:54,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036651199] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:54,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:14:54,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-04 11:14:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208112992] [2025-03-04 11:14:54,272 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:54,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:14:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:54,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:14:54,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:54,273 INFO L87 Difference]: Start difference. First operand 145 states and 166 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:54,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:54,595 INFO L93 Difference]: Finished difference Result 295 states and 349 transitions. [2025-03-04 11:14:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:14:54,596 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2025-03-04 11:14:54,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:54,597 INFO L225 Difference]: With dead ends: 295 [2025-03-04 11:14:54,597 INFO L226 Difference]: Without dead ends: 284 [2025-03-04 11:14:54,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:14:54,598 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 168 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:54,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 170 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:54,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2025-03-04 11:14:54,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 278. [2025-03-04 11:14:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 253 states have (on average 1.1541501976284585) internal successors, (292), 257 states have internal predecessors, (292), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 11:14:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2025-03-04 11:14:54,612 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 53 [2025-03-04 11:14:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:54,613 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2025-03-04 11:14:54,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 10 states have internal predecessors, (70), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2025-03-04 11:14:54,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 11:14:54,613 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:54,613 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:54,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-04 11:14:54,814 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,SelfDestructingSolverStorable14 [2025-03-04 11:14:54,815 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:54,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:54,815 INFO L85 PathProgramCache]: Analyzing trace with hash 104948459, now seen corresponding path program 1 times [2025-03-04 11:14:54,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:54,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945554174] [2025-03-04 11:14:54,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:54,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:54,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 11:14:54,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:14:54,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:54,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:54,868 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:14:54,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:54,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945554174] [2025-03-04 11:14:54,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945554174] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:54,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019922530] [2025-03-04 11:14:54,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:54,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:54,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:54,871 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 11:14:54,872 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 11:14:54,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 11:14:54,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 11:14:54,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:54,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:54,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 11:14:54,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:54,943 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:14:54,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 11:14:55,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019922530] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:55,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:55,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-04 11:14:55,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789866417] [2025-03-04 11:14:55,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:55,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:55,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:55,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:55,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:55,004 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-04 11:14:55,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:55,113 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2025-03-04 11:14:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:14:55,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 65 [2025-03-04 11:14:55,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:55,116 INFO L225 Difference]: With dead ends: 768 [2025-03-04 11:14:55,116 INFO L226 Difference]: Without dead ends: 766 [2025-03-04 11:14:55,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:55,117 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:55,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 91 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2025-03-04 11:14:55,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2025-03-04 11:14:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 708 states have (on average 1.1257062146892656) internal successors, (797), 711 states have internal predecessors, (797), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2025-03-04 11:14:55,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 901 transitions. [2025-03-04 11:14:55,144 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 901 transitions. Word has length 65 [2025-03-04 11:14:55,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:55,145 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 901 transitions. [2025-03-04 11:14:55,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.125) internal successors, (97), 9 states have internal predecessors, (97), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-04 11:14:55,145 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 901 transitions. [2025-03-04 11:14:55,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:14:55,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:55,145 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:55,151 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 11:14:55,346 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,SelfDestructingSolverStorable15 [2025-03-04 11:14:55,346 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:55,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:55,346 INFO L85 PathProgramCache]: Analyzing trace with hash 752813580, now seen corresponding path program 1 times [2025-03-04 11:14:55,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:55,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168859061] [2025-03-04 11:14:55,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:55,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:55,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:14:55,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:55,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:55,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:55,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168859061] [2025-03-04 11:14:55,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168859061] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:55,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59341013] [2025-03-04 11:14:55,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:55,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:55,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:55,435 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 11:14:55,436 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 11:14:55,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 11:14:55,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:55,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:55,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:55,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:55,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:55,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 35 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 11:14:55,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59341013] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:55,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:55,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-04 11:14:55,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448910427] [2025-03-04 11:14:55,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:55,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 11:14:55,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:55,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 11:14:55,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:14:55,591 INFO L87 Difference]: Start difference. First operand 766 states and 901 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:55,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:55,669 INFO L93 Difference]: Finished difference Result 938 states and 1099 transitions. [2025-03-04 11:14:55,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:14:55,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 74 [2025-03-04 11:14:55,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:55,671 INFO L225 Difference]: With dead ends: 938 [2025-03-04 11:14:55,671 INFO L226 Difference]: Without dead ends: 523 [2025-03-04 11:14:55,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-04 11:14:55,675 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 7 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:55,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 115 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:14:55,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-03-04 11:14:55,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 522. [2025-03-04 11:14:55,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 481 states have (on average 1.1081081081081081) internal successors, (533), 484 states have internal predecessors, (533), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 11:14:55,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 603 transitions. [2025-03-04 11:14:55,707 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 603 transitions. Word has length 74 [2025-03-04 11:14:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:55,708 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 603 transitions. [2025-03-04 11:14:55,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-03-04 11:14:55,708 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 603 transitions. [2025-03-04 11:14:55,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 11:14:55,708 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:55,708 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:55,714 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 11:14:55,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:55,909 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:55,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:55,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2071302579, now seen corresponding path program 2 times [2025-03-04 11:14:55,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:55,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954502785] [2025-03-04 11:14:55,910 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:55,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:55,913 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-04 11:14:55,919 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:55,919 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:55,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-04 11:14:56,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954502785] [2025-03-04 11:14:56,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954502785] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001726638] [2025-03-04 11:14:56,104 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:56,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:56,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:56,110 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 11:14:56,112 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 11:14:56,130 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 74 statements into 2 equivalence classes. [2025-03-04 11:14:56,142 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 11:14:56,143 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:56,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:56,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:14:56,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:56,257 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:14:56,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-04 11:14:56,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001726638] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:56,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:56,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2025-03-04 11:14:56,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789331946] [2025-03-04 11:14:56,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:56,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-04 11:14:56,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:56,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-04 11:14:56,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2025-03-04 11:14:56,418 INFO L87 Difference]: Start difference. First operand 522 states and 603 transitions. Second operand has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:14:57,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:57,525 INFO L93 Difference]: Finished difference Result 760 states and 869 transitions. [2025-03-04 11:14:57,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2025-03-04 11:14:57,525 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) Word has length 74 [2025-03-04 11:14:57,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:57,528 INFO L225 Difference]: With dead ends: 760 [2025-03-04 11:14:57,528 INFO L226 Difference]: Without dead ends: 759 [2025-03-04 11:14:57,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 137 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1729 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1258, Invalid=4144, Unknown=0, NotChecked=0, Total=5402 [2025-03-04 11:14:57,529 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 286 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:57,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 169 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:14:57,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2025-03-04 11:14:57,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 521. [2025-03-04 11:14:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 481 states have (on average 1.0706860706860706) internal successors, (515), 483 states have internal predecessors, (515), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2025-03-04 11:14:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 585 transitions. [2025-03-04 11:14:57,563 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 585 transitions. Word has length 74 [2025-03-04 11:14:57,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:57,563 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 585 transitions. [2025-03-04 11:14:57,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.318181818181818) internal successors, (139), 22 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2025-03-04 11:14:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 585 transitions. [2025-03-04 11:14:57,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-03-04 11:14:57,566 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:57,566 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:57,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:57,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-04 11:14:57,766 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:57,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1864426151, now seen corresponding path program 1 times [2025-03-04 11:14:57,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:57,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159353126] [2025-03-04 11:14:57,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:57,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:57,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 11:14:57,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 11:14:57,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:57,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:57,833 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:57,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:57,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159353126] [2025-03-04 11:14:57,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159353126] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:57,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046247536] [2025-03-04 11:14:57,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:57,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:57,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:57,835 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 11:14:57,837 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 11:14:57,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-03-04 11:14:57,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-03-04 11:14:57,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:57,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:57,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:57,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:57,919 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:57,999 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 11:14:57,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046247536] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:57,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:58,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 11:14:58,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539910099] [2025-03-04 11:14:58,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:58,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 11:14:58,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:58,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 11:14:58,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:58,001 INFO L87 Difference]: Start difference. First operand 521 states and 585 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:58,133 INFO L93 Difference]: Finished difference Result 1248 states and 1417 transitions. [2025-03-04 11:14:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 11:14:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 87 [2025-03-04 11:14:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:58,138 INFO L225 Difference]: With dead ends: 1248 [2025-03-04 11:14:58,138 INFO L226 Difference]: Without dead ends: 1247 [2025-03-04 11:14:58,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:14:58,139 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 92 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:58,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 173 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:58,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1247 states. [2025-03-04 11:14:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1247 to 1239. [2025-03-04 11:14:58,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1151 states have (on average 1.0747176368375326) internal successors, (1237), 1153 states have internal predecessors, (1237), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2025-03-04 11:14:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1403 transitions. [2025-03-04 11:14:58,188 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1403 transitions. Word has length 87 [2025-03-04 11:14:58,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:58,189 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1403 transitions. [2025-03-04 11:14:58,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1403 transitions. [2025-03-04 11:14:58,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-03-04 11:14:58,189 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:58,190 INFO L218 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:58,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-04 11:14:58,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:58,390 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:58,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:58,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1736655700, now seen corresponding path program 1 times [2025-03-04 11:14:58,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:58,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316769066] [2025-03-04 11:14:58,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:58,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:58,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 11:14:58,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 11:14:58,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:58,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:58,470 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 11:14:58,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:58,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316769066] [2025-03-04 11:14:58,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316769066] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:58,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820586524] [2025-03-04 11:14:58,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:14:58,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:58,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:58,473 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 11:14:58,475 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 11:14:58,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-03-04 11:14:58,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-03-04 11:14:58,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:14:58,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:58,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:14:58,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:58,588 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 70 proven. 22 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 11:14:58,588 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:58,667 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-04 11:14:58,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820586524] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:58,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:58,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2025-03-04 11:14:58,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571889627] [2025-03-04 11:14:58,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:58,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:14:58,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:58,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:14:58,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:14:58,669 INFO L87 Difference]: Start difference. First operand 1239 states and 1403 transitions. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:14:58,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:58,807 INFO L93 Difference]: Finished difference Result 1303 states and 1470 transitions. [2025-03-04 11:14:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 11:14:58,808 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 91 [2025-03-04 11:14:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:58,812 INFO L225 Difference]: With dead ends: 1303 [2025-03-04 11:14:58,812 INFO L226 Difference]: Without dead ends: 1184 [2025-03-04 11:14:58,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 176 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 11:14:58,814 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 33 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:58,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 133 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:14:58,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2025-03-04 11:14:58,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1182. [2025-03-04 11:14:58,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 1097 states have (on average 1.0665451230628988) internal successors, (1170), 1099 states have internal predecessors, (1170), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-04 11:14:58,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1330 transitions. [2025-03-04 11:14:58,876 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1330 transitions. Word has length 91 [2025-03-04 11:14:58,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:58,876 INFO L471 AbstractCegarLoop]: Abstraction has 1182 states and 1330 transitions. [2025-03-04 11:14:58,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 8 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-04 11:14:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1330 transitions. [2025-03-04 11:14:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 11:14:58,877 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:58,877 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:58,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-04 11:14:59,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,078 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:59,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:59,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1235061652, now seen corresponding path program 2 times [2025-03-04 11:14:59,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:59,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167119661] [2025-03-04 11:14:59,079 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:59,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:59,084 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:14:59,091 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:14:59,091 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:59,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 96 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:59,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:14:59,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167119661] [2025-03-04 11:14:59,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167119661] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:14:59,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77589026] [2025-03-04 11:14:59,170 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:14:59,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:59,172 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 11:14:59,173 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 11:14:59,192 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-04 11:14:59,208 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 11:14:59,208 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:14:59,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 11:14:59,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:14:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:59,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:14:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 51 proven. 85 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-03-04 11:14:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77589026] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:14:59,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:14:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2025-03-04 11:14:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375299508] [2025-03-04 11:14:59,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:14:59,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:14:59,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:14:59,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:14:59,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 11:14:59,416 INFO L87 Difference]: Start difference. First operand 1182 states and 1330 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:59,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:14:59,640 INFO L93 Difference]: Finished difference Result 2651 states and 2990 transitions. [2025-03-04 11:14:59,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:14:59,640 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 110 [2025-03-04 11:14:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:14:59,646 INFO L225 Difference]: With dead ends: 2651 [2025-03-04 11:14:59,646 INFO L226 Difference]: Without dead ends: 1914 [2025-03-04 11:14:59,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 211 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:14:59,648 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 28 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:14:59,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 239 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:14:59,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2025-03-04 11:14:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1394. [2025-03-04 11:14:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.061003861003861) internal successors, (1374), 1297 states have internal predecessors, (1374), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-04 11:14:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1562 transitions. [2025-03-04 11:14:59,703 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1562 transitions. Word has length 110 [2025-03-04 11:14:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:14:59,704 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1562 transitions. [2025-03-04 11:14:59,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 12 states have internal predecessors, (136), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2025-03-04 11:14:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1562 transitions. [2025-03-04 11:14:59,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:14:59,705 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:14:59,705 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:14:59,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-04 11:14:59,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,906 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:14:59,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:14:59,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2109757835, now seen corresponding path program 3 times [2025-03-04 11:14:59,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:14:59,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552176574] [2025-03-04 11:14:59,906 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:59,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:14:59,911 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:14:59,927 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:14:59,929 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:14:59,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:14:59,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960967326] [2025-03-04 11:14:59,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:14:59,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:14:59,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:14:59,934 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 11:14:59,935 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 11:14:59,966 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:14:59,978 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 53 of 129 statements. [2025-03-04 11:14:59,979 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-04 11:14:59,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:14:59,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:14:59,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:00,013 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2025-03-04 11:15:00,013 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:00,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552176574] [2025-03-04 11:15:00,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:00,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960967326] [2025-03-04 11:15:00,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960967326] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:00,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:00,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 11:15:00,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596816077] [2025-03-04 11:15:00,152 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:00,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:15:00,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:00,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:15:00,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-03-04 11:15:00,153 INFO L87 Difference]: Start difference. First operand 1394 states and 1562 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:15:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:00,224 INFO L93 Difference]: Finished difference Result 1396 states and 1562 transitions. [2025-03-04 11:15:00,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 11:15:00,224 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 129 [2025-03-04 11:15:00,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:00,229 INFO L225 Difference]: With dead ends: 1396 [2025-03-04 11:15:00,229 INFO L226 Difference]: Without dead ends: 1395 [2025-03-04 11:15:00,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-03-04 11:15:00,231 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:00,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 73 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 11:15:00,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2025-03-04 11:15:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 1394. [2025-03-04 11:15:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1295 states have (on average 1.0586872586872587) internal successors, (1371), 1297 states have internal predecessors, (1371), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-04 11:15:00,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1559 transitions. [2025-03-04 11:15:00,284 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1559 transitions. Word has length 129 [2025-03-04 11:15:00,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:00,285 INFO L471 AbstractCegarLoop]: Abstraction has 1394 states and 1559 transitions. [2025-03-04 11:15:00,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:15:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1559 transitions. [2025-03-04 11:15:00,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:15:00,287 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:00,287 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:00,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:00,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:00,491 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:00,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:00,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1349065746, now seen corresponding path program 3 times [2025-03-04 11:15:00,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:00,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467633477] [2025-03-04 11:15:00,492 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:00,497 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:15:00,514 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:00,515 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:00,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85827516] [2025-03-04 11:15:00,516 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:00,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:00,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:00,518 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:00,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-04 11:15:00,543 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 129 statements into 7 equivalence classes. [2025-03-04 11:15:00,565 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 110 of 129 statements. [2025-03-04 11:15:00,565 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-04 11:15:00,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:00,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:00,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-04 11:15:00,733 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 179 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-04 11:15:00,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:00,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467633477] [2025-03-04 11:15:00,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:00,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85827516] [2025-03-04 11:15:00,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85827516] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:00,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:00,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2025-03-04 11:15:00,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763573805] [2025-03-04 11:15:00,944 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:00,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:15:00,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:00,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:15:00,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:00,945 INFO L87 Difference]: Start difference. First operand 1394 states and 1559 transitions. Second operand has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:01,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:01,567 INFO L93 Difference]: Finished difference Result 1721 states and 1919 transitions. [2025-03-04 11:15:01,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-04 11:15:01,568 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 129 [2025-03-04 11:15:01,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:01,572 INFO L225 Difference]: With dead ends: 1721 [2025-03-04 11:15:01,573 INFO L226 Difference]: Without dead ends: 1720 [2025-03-04 11:15:01,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=372, Invalid=1188, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:01,574 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 266 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:01,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 289 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2025-03-04 11:15:01,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1584. [2025-03-04 11:15:01,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1473 states have (on average 1.054989816700611) internal successors, (1554), 1475 states have internal predecessors, (1554), 106 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (106), 106 states have call predecessors, (106), 106 states have call successors, (106) [2025-03-04 11:15:01,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1766 transitions. [2025-03-04 11:15:01,631 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1766 transitions. Word has length 129 [2025-03-04 11:15:01,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:01,632 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1766 transitions. [2025-03-04 11:15:01,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 14 states have internal predecessors, (146), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:01,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1766 transitions. [2025-03-04 11:15:01,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-04 11:15:01,633 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:01,633 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:01,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:01,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-04 11:15:01,835 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:01,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:01,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1438366325, now seen corresponding path program 4 times [2025-03-04 11:15:01,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:01,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806962712] [2025-03-04 11:15:01,836 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:01,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:01,840 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-03-04 11:15:01,849 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:01,850 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:01,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:01,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867313969] [2025-03-04 11:15:01,850 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:01,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:01,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:01,852 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:01,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-04 11:15:01,876 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 129 statements into 2 equivalence classes. [2025-03-04 11:15:01,898 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 129 of 129 statements. [2025-03-04 11:15:01,898 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:01,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:01,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-04 11:15:01,901 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:03,013 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:15:03,062 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 22 proven. 210 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-04 11:15:03,062 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:03,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806962712] [2025-03-04 11:15:03,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867313969] [2025-03-04 11:15:03,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867313969] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:03,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:03,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2025-03-04 11:15:03,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978741922] [2025-03-04 11:15:03,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:03,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-04 11:15:03,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:03,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-04 11:15:03,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:03,275 INFO L87 Difference]: Start difference. First operand 1584 states and 1766 transitions. Second operand has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:04,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:04,243 INFO L93 Difference]: Finished difference Result 1801 states and 2005 transitions. [2025-03-04 11:15:04,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-04 11:15:04,244 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Word has length 129 [2025-03-04 11:15:04,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:04,249 INFO L225 Difference]: With dead ends: 1801 [2025-03-04 11:15:04,249 INFO L226 Difference]: Without dead ends: 1800 [2025-03-04 11:15:04,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=274, Invalid=1532, Unknown=0, NotChecked=0, Total=1806 [2025-03-04 11:15:04,250 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 99 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:04,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 300 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 11:15:04,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2025-03-04 11:15:04,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1614. [2025-03-04 11:15:04,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1501 states have (on average 1.0539640239840107) internal successors, (1582), 1503 states have internal predecessors, (1582), 108 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2025-03-04 11:15:04,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1798 transitions. [2025-03-04 11:15:04,310 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1798 transitions. Word has length 129 [2025-03-04 11:15:04,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:04,310 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 1798 transitions. [2025-03-04 11:15:04,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 4.04) internal successors, (101), 24 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-04 11:15:04,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1798 transitions. [2025-03-04 11:15:04,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-04 11:15:04,312 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:04,312 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:04,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:04,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-04 11:15:04,515 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:04,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash 892015019, now seen corresponding path program 2 times [2025-03-04 11:15:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:04,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727882739] [2025-03-04 11:15:04,516 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:04,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:04,519 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-04 11:15:04,524 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 11:15:04,524 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:04,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:04,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:04,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727882739] [2025-03-04 11:15:04,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727882739] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:04,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247744376] [2025-03-04 11:15:04,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:04,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:04,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:04,618 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:04,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-04 11:15:04,639 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 141 statements into 2 equivalence classes. [2025-03-04 11:15:04,657 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 141 of 141 statements. [2025-03-04 11:15:04,657 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:04,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:04,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 11:15:04,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:04,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:04,907 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:04,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247744376] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:04,907 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:04,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2025-03-04 11:15:04,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374942278] [2025-03-04 11:15:04,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:04,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-04 11:15:04,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:04,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-04 11:15:04,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:04,909 INFO L87 Difference]: Start difference. First operand 1614 states and 1798 transitions. Second operand has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:05,144 INFO L93 Difference]: Finished difference Result 3055 states and 3526 transitions. [2025-03-04 11:15:05,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 11:15:05,146 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 141 [2025-03-04 11:15:05,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:05,153 INFO L225 Difference]: With dead ends: 3055 [2025-03-04 11:15:05,153 INFO L226 Difference]: Without dead ends: 3054 [2025-03-04 11:15:05,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:05,154 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:05,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 154 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:05,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2025-03-04 11:15:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 3054. [2025-03-04 11:15:05,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3054 states, 2845 states have (on average 1.0622144112478031) internal successors, (3022), 2847 states have internal predecessors, (3022), 204 states have call successors, (204), 2 states have call predecessors, (204), 2 states have return successors, (204), 204 states have call predecessors, (204), 204 states have call successors, (204) [2025-03-04 11:15:05,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3430 transitions. [2025-03-04 11:15:05,282 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3430 transitions. Word has length 141 [2025-03-04 11:15:05,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:05,284 INFO L471 AbstractCegarLoop]: Abstraction has 3054 states and 3430 transitions. [2025-03-04 11:15:05,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.0625) internal successors, (209), 17 states have internal predecessors, (209), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:05,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3430 transitions. [2025-03-04 11:15:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-04 11:15:05,286 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:05,286 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:05,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:05,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:05,487 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:05,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:05,487 INFO L85 PathProgramCache]: Analyzing trace with hash -869705810, now seen corresponding path program 5 times [2025-03-04 11:15:05,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:05,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176970150] [2025-03-04 11:15:05,488 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:05,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:05,493 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 148 statements into 8 equivalence classes. [2025-03-04 11:15:05,506 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 11:15:05,506 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:15:05,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 109 proven. 180 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:05,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176970150] [2025-03-04 11:15:05,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176970150] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:05,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001750121] [2025-03-04 11:15:05,609 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:05,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:05,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:05,611 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:05,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-04 11:15:05,632 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 148 statements into 8 equivalence classes. [2025-03-04 11:15:05,654 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 11:15:05,654 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-03-04 11:15:05,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:05,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:05,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:05,806 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:05,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:05,942 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 96 proven. 193 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 11:15:05,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001750121] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:05,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:05,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 14 [2025-03-04 11:15:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557719290] [2025-03-04 11:15:05,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:05,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 11:15:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:05,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 11:15:05,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-04 11:15:05,943 INFO L87 Difference]: Start difference. First operand 3054 states and 3430 transitions. Second operand has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:06,268 INFO L93 Difference]: Finished difference Result 6445 states and 7249 transitions. [2025-03-04 11:15:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:06,268 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) Word has length 148 [2025-03-04 11:15:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:06,280 INFO L225 Difference]: With dead ends: 6445 [2025-03-04 11:15:06,281 INFO L226 Difference]: Without dead ends: 4856 [2025-03-04 11:15:06,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 285 SyntacticMatches, 7 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2025-03-04 11:15:06,284 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 29 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:06,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 254 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4856 states. [2025-03-04 11:15:06,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 3422. [2025-03-04 11:15:06,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3422 states, 3189 states have (on average 1.057071182188774) internal successors, (3371), 3191 states have internal predecessors, (3371), 228 states have call successors, (228), 2 states have call predecessors, (228), 2 states have return successors, (228), 228 states have call predecessors, (228), 228 states have call successors, (228) [2025-03-04 11:15:06,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3422 states to 3422 states and 3827 transitions. [2025-03-04 11:15:06,420 INFO L78 Accepts]: Start accepts. Automaton has 3422 states and 3827 transitions. Word has length 148 [2025-03-04 11:15:06,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:06,421 INFO L471 AbstractCegarLoop]: Abstraction has 3422 states and 3827 transitions. [2025-03-04 11:15:06,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 14 states have internal predecessors, (165), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2025-03-04 11:15:06,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3422 states and 3827 transitions. [2025-03-04 11:15:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-03-04 11:15:06,423 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:06,424 INFO L218 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:06,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-04 11:15:06,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:06,624 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:06,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:06,625 INFO L85 PathProgramCache]: Analyzing trace with hash 654654451, now seen corresponding path program 6 times [2025-03-04 11:15:06,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:06,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338215103] [2025-03-04 11:15:06,625 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:06,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:06,630 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 167 statements into 9 equivalence classes. [2025-03-04 11:15:06,652 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 167 of 167 statements. [2025-03-04 11:15:06,652 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-03-04 11:15:06,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:06,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [986851996] [2025-03-04 11:15:06,653 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:06,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:06,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:06,658 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:06,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-04 11:15:06,684 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 167 statements into 9 equivalence classes. [2025-03-04 11:15:06,708 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 148 of 167 statements. [2025-03-04 11:15:06,708 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-03-04 11:15:06,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:06,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-04 11:15:06,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:06,953 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2025-03-04 11:15:06,953 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:07,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338215103] [2025-03-04 11:15:07,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986851996] [2025-03-04 11:15:07,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986851996] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:07,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:07,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:15:07,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330188889] [2025-03-04 11:15:07,041 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:07,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:15:07,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:07,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:15:07,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:07,042 INFO L87 Difference]: Start difference. First operand 3422 states and 3827 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 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 11:15:07,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:07,283 INFO L93 Difference]: Finished difference Result 3877 states and 4334 transitions. [2025-03-04 11:15:07,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:15:07,284 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 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 167 [2025-03-04 11:15:07,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:07,292 INFO L225 Difference]: With dead ends: 3877 [2025-03-04 11:15:07,292 INFO L226 Difference]: Without dead ends: 3876 [2025-03-04 11:15:07,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-04 11:15:07,293 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 20 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:07,293 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 221 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:07,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3876 states. [2025-03-04 11:15:07,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3876 to 3467. [2025-03-04 11:15:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3467 states, 3231 states have (on average 1.0563293098112039) internal successors, (3413), 3233 states have internal predecessors, (3413), 231 states have call successors, (231), 2 states have call predecessors, (231), 2 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2025-03-04 11:15:07,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3875 transitions. [2025-03-04 11:15:07,425 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3875 transitions. Word has length 167 [2025-03-04 11:15:07,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:07,425 INFO L471 AbstractCegarLoop]: Abstraction has 3467 states and 3875 transitions. [2025-03-04 11:15:07,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 9 states have internal predecessors, (86), 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 11:15:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3875 transitions. [2025-03-04 11:15:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-04 11:15:07,428 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:07,429 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:07,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 11:15:07,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 11:15:07,629 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:07,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:07,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1154485359, now seen corresponding path program 2 times [2025-03-04 11:15:07,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:07,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372643946] [2025-03-04 11:15:07,630 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:07,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:07,644 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 182 statements into 2 equivalence classes. [2025-03-04 11:15:07,655 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 11:15:07,655 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:07,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:07,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:07,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372643946] [2025-03-04 11:15:07,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372643946] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:07,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408432302] [2025-03-04 11:15:07,769 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:07,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:07,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:07,772 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:07,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:15:07,795 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 182 statements into 2 equivalence classes. [2025-03-04 11:15:07,821 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 182 of 182 statements. [2025-03-04 11:15:07,821 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:07,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:07,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:15:07,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:07,938 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:07,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:08,133 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 524 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:08,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408432302] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:08,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:08,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2025-03-04 11:15:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041876355] [2025-03-04 11:15:08,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:08,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-04 11:15:08,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:08,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-04 11:15:08,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:15:08,135 INFO L87 Difference]: Start difference. First operand 3467 states and 3875 transitions. Second operand has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:15:08,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:08,481 INFO L93 Difference]: Finished difference Result 6626 states and 7435 transitions. [2025-03-04 11:15:08,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 11:15:08,482 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 182 [2025-03-04 11:15:08,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:08,497 INFO L225 Difference]: With dead ends: 6626 [2025-03-04 11:15:08,498 INFO L226 Difference]: Without dead ends: 6625 [2025-03-04 11:15:08,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2025-03-04 11:15:08,500 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 278 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:08,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 281 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:08,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2025-03-04 11:15:08,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6607. [2025-03-04 11:15:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6607 states, 6161 states have (on average 1.05713358221068) internal successors, (6513), 6163 states have internal predecessors, (6513), 441 states have call successors, (441), 2 states have call predecessors, (441), 2 states have return successors, (441), 441 states have call predecessors, (441), 441 states have call successors, (441) [2025-03-04 11:15:08,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6607 states to 6607 states and 7395 transitions. [2025-03-04 11:15:08,737 INFO L78 Accepts]: Start accepts. Automaton has 6607 states and 7395 transitions. Word has length 182 [2025-03-04 11:15:08,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:08,737 INFO L471 AbstractCegarLoop]: Abstraction has 6607 states and 7395 transitions. [2025-03-04 11:15:08,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.55) internal successors, (271), 21 states have internal predecessors, (271), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2025-03-04 11:15:08,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6607 states and 7395 transitions. [2025-03-04 11:15:08,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 11:15:08,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:08,740 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:08,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-04 11:15:08,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-04 11:15:08,940 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:08,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:08,941 INFO L85 PathProgramCache]: Analyzing trace with hash 685435951, now seen corresponding path program 7 times [2025-03-04 11:15:08,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:08,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157774136] [2025-03-04 11:15:08,941 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:08,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:08,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-04 11:15:08,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:08,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:08,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:09,067 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 160 proven. 313 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:09,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:09,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157774136] [2025-03-04 11:15:09,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157774136] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:09,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809391192] [2025-03-04 11:15:09,068 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:09,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:09,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:09,070 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:09,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 11:15:09,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-03-04 11:15:09,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:09,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:09,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:09,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:09,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:09,348 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 288 proven. 185 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:09,348 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:09,542 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 160 proven. 313 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2025-03-04 11:15:09,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809391192] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:09,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:09,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2025-03-04 11:15:09,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084149010] [2025-03-04 11:15:09,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:09,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 11:15:09,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:09,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 11:15:09,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:09,544 INFO L87 Difference]: Start difference. First operand 6607 states and 7395 transitions. Second operand has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:10,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:10,230 INFO L93 Difference]: Finished difference Result 18303 states and 20561 transitions. [2025-03-04 11:15:10,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:10,231 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 186 [2025-03-04 11:15:10,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:10,256 INFO L225 Difference]: With dead ends: 18303 [2025-03-04 11:15:10,256 INFO L226 Difference]: Without dead ends: 13432 [2025-03-04 11:15:10,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 358 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:10,262 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:10,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 278 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:10,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13432 states. [2025-03-04 11:15:10,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13432 to 7178. [2025-03-04 11:15:10,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7178 states, 6693 states have (on average 1.0522934409084117) internal successors, (7043), 6695 states have internal predecessors, (7043), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2025-03-04 11:15:10,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7178 states to 7178 states and 8003 transitions. [2025-03-04 11:15:10,662 INFO L78 Accepts]: Start accepts. Automaton has 7178 states and 8003 transitions. Word has length 186 [2025-03-04 11:15:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:10,662 INFO L471 AbstractCegarLoop]: Abstraction has 7178 states and 8003 transitions. [2025-03-04 11:15:10,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 7178 states and 8003 transitions. [2025-03-04 11:15:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-03-04 11:15:10,665 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:10,665 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:10,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:10,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-04 11:15:10,869 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:10,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1131665812, now seen corresponding path program 8 times [2025-03-04 11:15:10,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:10,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668270668] [2025-03-04 11:15:10,870 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:10,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:10,876 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 11:15:10,883 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:10,883 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:10,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 119 proven. 383 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:11,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668270668] [2025-03-04 11:15:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668270668] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:11,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875225911] [2025-03-04 11:15:11,053 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:11,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:11,055 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:11,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 11:15:11,081 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 186 statements into 2 equivalence classes. [2025-03-04 11:15:11,109 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 186 of 186 statements. [2025-03-04 11:15:11,109 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:11,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:11,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 11:15:11,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:11,317 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:11,317 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 156 proven. 346 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 11:15:11,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875225911] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:11,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:11,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2025-03-04 11:15:11,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016398869] [2025-03-04 11:15:11,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:11,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 11:15:11,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:11,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 11:15:11,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:15:11,505 INFO L87 Difference]: Start difference. First operand 7178 states and 8003 transitions. Second operand has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:11,983 INFO L93 Difference]: Finished difference Result 8367 states and 9299 transitions. [2025-03-04 11:15:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 11:15:11,984 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 186 [2025-03-04 11:15:11,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:11,997 INFO L225 Difference]: With dead ends: 8367 [2025-03-04 11:15:11,998 INFO L226 Difference]: Without dead ends: 7174 [2025-03-04 11:15:12,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 357 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2025-03-04 11:15:12,002 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 29 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:12,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 368 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2025-03-04 11:15:12,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 7172. [2025-03-04 11:15:12,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7172 states, 6687 states have (on average 1.0494990279647076) internal successors, (7018), 6689 states have internal predecessors, (7018), 480 states have call successors, (480), 2 states have call predecessors, (480), 2 states have return successors, (480), 480 states have call predecessors, (480), 480 states have call successors, (480) [2025-03-04 11:15:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7172 states to 7172 states and 7978 transitions. [2025-03-04 11:15:12,279 INFO L78 Accepts]: Start accepts. Automaton has 7172 states and 7978 transitions. Word has length 186 [2025-03-04 11:15:12,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:12,279 INFO L471 AbstractCegarLoop]: Abstraction has 7172 states and 7978 transitions. [2025-03-04 11:15:12,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.222222222222221) internal successors, (220), 18 states have internal predecessors, (220), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2025-03-04 11:15:12,279 INFO L276 IsEmpty]: Start isEmpty. Operand 7172 states and 7978 transitions. [2025-03-04 11:15:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-03-04 11:15:12,281 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:12,281 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:12,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-04 11:15:12,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:12,486 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:12,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:12,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1811990645, now seen corresponding path program 9 times [2025-03-04 11:15:12,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:12,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644624104] [2025-03-04 11:15:12,486 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:12,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:12,492 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-04 11:15:12,507 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 205 of 205 statements. [2025-03-04 11:15:12,507 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 11:15:12,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:12,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045978194] [2025-03-04 11:15:12,508 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:12,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:12,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:12,510 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:12,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 11:15:12,534 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 205 statements into 11 equivalence classes. [2025-03-04 11:15:12,562 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 129 of 205 statements. [2025-03-04 11:15:12,562 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-03-04 11:15:12,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:12,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:12,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 815 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2025-03-04 11:15:12,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:12,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:12,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644624104] [2025-03-04 11:15:12,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:12,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045978194] [2025-03-04 11:15:12,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045978194] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:12,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:12,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 11:15:12,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028921096] [2025-03-04 11:15:12,941 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:12,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:15:12,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:12,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:15:12,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-03-04 11:15:12,942 INFO L87 Difference]: Start difference. First operand 7172 states and 7978 transitions. Second operand has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:13,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:13,534 INFO L93 Difference]: Finished difference Result 11488 states and 12804 transitions. [2025-03-04 11:15:13,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 11:15:13,534 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 205 [2025-03-04 11:15:13,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:13,548 INFO L225 Difference]: With dead ends: 11488 [2025-03-04 11:15:13,548 INFO L226 Difference]: Without dead ends: 7522 [2025-03-04 11:15:13,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:13,555 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 148 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:13,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 396 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:13,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2025-03-04 11:15:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7253. [2025-03-04 11:15:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7253 states, 6763 states have (on average 1.0489427768741684) internal successors, (7094), 6765 states have internal predecessors, (7094), 485 states have call successors, (485), 2 states have call predecessors, (485), 2 states have return successors, (485), 485 states have call predecessors, (485), 485 states have call successors, (485) [2025-03-04 11:15:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7253 states to 7253 states and 8064 transitions. [2025-03-04 11:15:13,878 INFO L78 Accepts]: Start accepts. Automaton has 7253 states and 8064 transitions. Word has length 205 [2025-03-04 11:15:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:13,878 INFO L471 AbstractCegarLoop]: Abstraction has 7253 states and 8064 transitions. [2025-03-04 11:15:13,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.11111111111111) internal successors, (100), 10 states have internal predecessors, (100), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2025-03-04 11:15:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 7253 states and 8064 transitions. [2025-03-04 11:15:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 11:15:13,882 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:13,882 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:13,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:14,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:14,086 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:14,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:14,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1266844299, now seen corresponding path program 10 times [2025-03-04 11:15:14,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:14,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654431990] [2025-03-04 11:15:14,087 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:14,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:14,095 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 243 statements into 2 equivalence classes. [2025-03-04 11:15:14,120 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:14,120 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:14,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:14,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1830616630] [2025-03-04 11:15:14,123 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:14,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:14,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:14,124 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:14,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 11:15:14,156 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 243 statements into 2 equivalence classes. [2025-03-04 11:15:14,201 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:14,202 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:14,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:14,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-03-04 11:15:14,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 48 proven. 919 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-03-04 11:15:15,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:15,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654431990] [2025-03-04 11:15:15,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:15,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830616630] [2025-03-04 11:15:15,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830616630] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:15,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:15,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2025-03-04 11:15:15,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346765300] [2025-03-04 11:15:15,898 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:15,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-04 11:15:15,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:15,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-04 11:15:15,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=814, Unknown=0, NotChecked=0, Total=930 [2025-03-04 11:15:15,899 INFO L87 Difference]: Start difference. First operand 7253 states and 8064 transitions. Second operand has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 11:15:18,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:23,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-04 11:15:27,401 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 11:15:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:33,072 INFO L93 Difference]: Finished difference Result 7742 states and 8589 transitions. [2025-03-04 11:15:33,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-04 11:15:33,072 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 243 [2025-03-04 11:15:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:33,090 INFO L225 Difference]: With dead ends: 7742 [2025-03-04 11:15:33,090 INFO L226 Difference]: Without dead ends: 7576 [2025-03-04 11:15:33,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=404, Invalid=2351, Unknown=1, NotChecked=0, Total=2756 [2025-03-04 11:15:33,096 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 197 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 23 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:33,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 393 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1980 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2025-03-04 11:15:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7576 states. [2025-03-04 11:15:33,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7576 to 7289. [2025-03-04 11:15:33,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7289 states, 6797 states have (on average 1.0485508312490806) internal successors, (7127), 6799 states have internal predecessors, (7127), 487 states have call successors, (487), 2 states have call predecessors, (487), 2 states have return successors, (487), 487 states have call predecessors, (487), 487 states have call successors, (487) [2025-03-04 11:15:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7289 states to 7289 states and 8101 transitions. [2025-03-04 11:15:33,380 INFO L78 Accepts]: Start accepts. Automaton has 7289 states and 8101 transitions. Word has length 243 [2025-03-04 11:15:33,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:33,380 INFO L471 AbstractCegarLoop]: Abstraction has 7289 states and 8101 transitions. [2025-03-04 11:15:33,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.7407407407407405) internal successors, (182), 28 states have internal predecessors, (182), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2025-03-04 11:15:33,380 INFO L276 IsEmpty]: Start isEmpty. Operand 7289 states and 8101 transitions. [2025-03-04 11:15:33,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2025-03-04 11:15:33,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:33,383 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:33,389 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:33,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:33,587 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:33,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:33,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2033077389, now seen corresponding path program 11 times [2025-03-04 11:15:33,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855396513] [2025-03-04 11:15:33,588 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:33,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:33,593 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 243 statements into 13 equivalence classes. [2025-03-04 11:15:33,605 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:33,605 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:33,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:33,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297701719] [2025-03-04 11:15:33,606 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:15:33,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:33,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:33,608 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:33,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 11:15:33,638 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 243 statements into 13 equivalence classes. [2025-03-04 11:15:33,685 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) and asserted 243 of 243 statements. [2025-03-04 11:15:33,685 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2025-03-04 11:15:33,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:33,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-03-04 11:15:33,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1202 backedges. 288 proven. 649 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2025-03-04 11:15:34,910 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:35,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:35,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855396513] [2025-03-04 11:15:35,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:35,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297701719] [2025-03-04 11:15:35,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297701719] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:35,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:35,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2025-03-04 11:15:35,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434642366] [2025-03-04 11:15:35,106 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:35,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2025-03-04 11:15:35,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:35,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2025-03-04 11:15:35,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1304, Unknown=0, NotChecked=0, Total=1560 [2025-03-04 11:15:35,108 INFO L87 Difference]: Start difference. First operand 7289 states and 8101 transitions. Second operand has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:37,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:37,359 INFO L93 Difference]: Finished difference Result 14244 states and 15816 transitions. [2025-03-04 11:15:37,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2025-03-04 11:15:37,360 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 243 [2025-03-04 11:15:37,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:37,374 INFO L225 Difference]: With dead ends: 14244 [2025-03-04 11:15:37,374 INFO L226 Difference]: Without dead ends: 8985 [2025-03-04 11:15:37,385 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2148 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1101, Invalid=6209, Unknown=0, NotChecked=0, Total=7310 [2025-03-04 11:15:37,386 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 227 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 3438 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 3438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:37,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 452 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 3438 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-04 11:15:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8985 states. [2025-03-04 11:15:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8985 to 8911. [2025-03-04 11:15:37,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8911 states, 8311 states have (on average 1.0439176994344843) internal successors, (8676), 8313 states have internal predecessors, (8676), 595 states have call successors, (595), 2 states have call predecessors, (595), 2 states have return successors, (595), 595 states have call predecessors, (595), 595 states have call successors, (595) [2025-03-04 11:15:37,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8911 states to 8911 states and 9866 transitions. [2025-03-04 11:15:37,736 INFO L78 Accepts]: Start accepts. Automaton has 8911 states and 9866 transitions. Word has length 243 [2025-03-04 11:15:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:37,736 INFO L471 AbstractCegarLoop]: Abstraction has 8911 states and 9866 transitions. [2025-03-04 11:15:37,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.2) internal successors, (182), 35 states have internal predecessors, (182), 14 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 11:15:37,737 INFO L276 IsEmpty]: Start isEmpty. Operand 8911 states and 9866 transitions. [2025-03-04 11:15:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2025-03-04 11:15:37,739 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:37,739 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:37,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-04 11:15:37,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-04 11:15:37,940 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:37,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1575290866, now seen corresponding path program 12 times [2025-03-04 11:15:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165341972] [2025-03-04 11:15:37,940 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:37,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:37,947 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 262 statements into 14 equivalence classes. [2025-03-04 11:15:37,960 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:37,960 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2025-03-04 11:15:37,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:38,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 306 proven. 868 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2025-03-04 11:15:38,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165341972] [2025-03-04 11:15:38,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165341972] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042166030] [2025-03-04 11:15:38,297 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 11:15:38,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:38,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:38,299 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:38,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 11:15:38,323 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 262 statements into 14 equivalence classes. [2025-03-04 11:15:38,397 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) and asserted 224 of 262 statements. [2025-03-04 11:15:38,397 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2025-03-04 11:15:38,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:38,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-04 11:15:38,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 0 proven. 817 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2025-03-04 11:15:38,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:38,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042166030] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:38,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:15:38,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10] total 29 [2025-03-04 11:15:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745591248] [2025-03-04 11:15:38,965 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:38,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-04 11:15:38,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:38,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-04 11:15:38,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2025-03-04 11:15:38,967 INFO L87 Difference]: Start difference. First operand 8911 states and 9866 transitions. Second operand has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:40,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:40,982 INFO L93 Difference]: Finished difference Result 18274 states and 20299 transitions. [2025-03-04 11:15:40,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2025-03-04 11:15:40,982 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 262 [2025-03-04 11:15:40,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:40,999 INFO L225 Difference]: With dead ends: 18274 [2025-03-04 11:15:40,999 INFO L226 Difference]: Without dead ends: 12701 [2025-03-04 11:15:41,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1021 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=740, Invalid=3682, Unknown=0, NotChecked=0, Total=4422 [2025-03-04 11:15:41,007 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 200 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 4053 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 4082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:41,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 609 Invalid, 4082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4053 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-04 11:15:41,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12701 states. [2025-03-04 11:15:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12701 to 10098. [2025-03-04 11:15:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10098 states, 9419 states have (on average 1.0440598789680433) internal successors, (9834), 9421 states have internal predecessors, (9834), 674 states have call successors, (674), 2 states have call predecessors, (674), 2 states have return successors, (674), 674 states have call predecessors, (674), 674 states have call successors, (674) [2025-03-04 11:15:41,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10098 states to 10098 states and 11182 transitions. [2025-03-04 11:15:41,449 INFO L78 Accepts]: Start accepts. Automaton has 10098 states and 11182 transitions. Word has length 262 [2025-03-04 11:15:41,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:41,450 INFO L471 AbstractCegarLoop]: Abstraction has 10098 states and 11182 transitions. [2025-03-04 11:15:41,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.413793103448276) internal successors, (302), 29 states have internal predecessors, (302), 21 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2025-03-04 11:15:41,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10098 states and 11182 transitions. [2025-03-04 11:15:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2025-03-04 11:15:41,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:41,453 INFO L218 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:41,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-04 11:15:41,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:41,657 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:41,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:41,657 INFO L85 PathProgramCache]: Analyzing trace with hash -191666068, now seen corresponding path program 13 times [2025-03-04 11:15:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:41,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592227079] [2025-03-04 11:15:41,657 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:41,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes. [2025-03-04 11:15:41,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:41,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:41,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:41,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 258 proven. 850 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:41,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:41,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592227079] [2025-03-04 11:15:41,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592227079] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:41,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139501158] [2025-03-04 11:15:41,884 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-04 11:15:41,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:41,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:41,886 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:41,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 11:15:41,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 262 statements into 1 equivalence classes. [2025-03-04 11:15:41,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 262 of 262 statements. [2025-03-04 11:15:41,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:15:41,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:41,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:41,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:42,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:42,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:42,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 321 proven. 787 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2025-03-04 11:15:42,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139501158] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:42,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:42,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 24 [2025-03-04 11:15:42,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798891826] [2025-03-04 11:15:42,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:42,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-04 11:15:42,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:42,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-04 11:15:42,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2025-03-04 11:15:42,528 INFO L87 Difference]: Start difference. First operand 10098 states and 11182 transitions. Second operand has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:43,299 INFO L93 Difference]: Finished difference Result 10241 states and 11329 transitions. [2025-03-04 11:15:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 11:15:43,299 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) Word has length 262 [2025-03-04 11:15:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:43,313 INFO L225 Difference]: With dead ends: 10241 [2025-03-04 11:15:43,313 INFO L226 Difference]: Without dead ends: 8562 [2025-03-04 11:15:43,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 503 SyntacticMatches, 13 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2025-03-04 11:15:43,317 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 27 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 999 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:43,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 544 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 11:15:43,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2025-03-04 11:15:43,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8560. [2025-03-04 11:15:43,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8560 states, 7983 states have (on average 1.0409620443442316) internal successors, (8310), 7985 states have internal predecessors, (8310), 572 states have call successors, (572), 2 states have call predecessors, (572), 2 states have return successors, (572), 572 states have call predecessors, (572), 572 states have call successors, (572) [2025-03-04 11:15:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8560 states to 8560 states and 9454 transitions. [2025-03-04 11:15:43,894 INFO L78 Accepts]: Start accepts. Automaton has 8560 states and 9454 transitions. Word has length 262 [2025-03-04 11:15:43,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:43,895 INFO L471 AbstractCegarLoop]: Abstraction has 8560 states and 9454 transitions. [2025-03-04 11:15:43,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.666666666666666) internal successors, (304), 24 states have internal predecessors, (304), 22 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2025-03-04 11:15:43,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8560 states and 9454 transitions. [2025-03-04 11:15:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-03-04 11:15:43,897 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:43,897 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:43,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-03-04 11:15:44,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:44,102 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:44,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 693944051, now seen corresponding path program 14 times [2025-03-04 11:15:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:44,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231222930] [2025-03-04 11:15:44,103 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:44,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:44,110 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 281 statements into 2 equivalence classes. [2025-03-04 11:15:44,118 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:44,118 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:44,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:44,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 677 proven. 427 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-04 11:15:44,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:44,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231222930] [2025-03-04 11:15:44,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231222930] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:44,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291199501] [2025-03-04 11:15:44,244 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 11:15:44,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:44,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:44,246 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:44,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 11:15:44,271 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 281 statements into 2 equivalence classes. [2025-03-04 11:15:44,305 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:44,305 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 11:15:44,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:44,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 11:15:44,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 956 proven. 308 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2025-03-04 11:15:44,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 638 proven. 466 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2025-03-04 11:15:44,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291199501] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:44,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:44,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2025-03-04 11:15:44,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343067538] [2025-03-04 11:15:44,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:44,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:15:44,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:44,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:15:44,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:15:44,663 INFO L87 Difference]: Start difference. First operand 8560 states and 9454 transitions. Second operand has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:45,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:45,126 INFO L93 Difference]: Finished difference Result 10159 states and 11204 transitions. [2025-03-04 11:15:45,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 11:15:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) Word has length 281 [2025-03-04 11:15:45,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:45,137 INFO L225 Difference]: With dead ends: 10159 [2025-03-04 11:15:45,138 INFO L226 Difference]: Without dead ends: 8930 [2025-03-04 11:15:45,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 573 GetRequests, 549 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2025-03-04 11:15:45,141 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 18 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:45,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 274 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:45,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2025-03-04 11:15:45,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 8524. [2025-03-04 11:15:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8524 states, 7949 states have (on average 1.0408856459932068) internal successors, (8274), 7951 states have internal predecessors, (8274), 570 states have call successors, (570), 2 states have call predecessors, (570), 2 states have return successors, (570), 570 states have call predecessors, (570), 570 states have call successors, (570) [2025-03-04 11:15:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8524 states to 8524 states and 9414 transitions. [2025-03-04 11:15:45,462 INFO L78 Accepts]: Start accepts. Automaton has 8524 states and 9414 transitions. Word has length 281 [2025-03-04 11:15:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:45,463 INFO L471 AbstractCegarLoop]: Abstraction has 8524 states and 9414 transitions. [2025-03-04 11:15:45,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 14.1875) internal successors, (227), 16 states have internal predecessors, (227), 16 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 16 states have call predecessors, (18), 16 states have call successors, (18) [2025-03-04 11:15:45,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8524 states and 9414 transitions. [2025-03-04 11:15:45,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-03-04 11:15:45,466 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:45,466 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:45,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:45,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-04 11:15:45,667 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:45,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:45,668 INFO L85 PathProgramCache]: Analyzing trace with hash -908179851, now seen corresponding path program 15 times [2025-03-04 11:15:45,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:45,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389831731] [2025-03-04 11:15:45,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:45,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:45,673 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 281 statements into 15 equivalence classes. [2025-03-04 11:15:45,691 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 281 of 281 statements. [2025-03-04 11:15:45,691 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:45,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:45,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166574559] [2025-03-04 11:15:45,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:45,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:45,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:45,694 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:45,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-04 11:15:45,721 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 281 statements into 15 equivalence classes. [2025-03-04 11:15:45,752 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) and asserted 167 of 281 statements. [2025-03-04 11:15:45,752 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2025-03-04 11:15:45,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:45,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 11:15:45,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1665 backedges. 0 proven. 1006 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2025-03-04 11:15:46,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:46,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:46,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389831731] [2025-03-04 11:15:46,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:46,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166574559] [2025-03-04 11:15:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166574559] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:46,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:46,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 11:15:46,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951669060] [2025-03-04 11:15:46,175 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:46,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 11:15:46,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:46,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 11:15:46,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:46,175 INFO L87 Difference]: Start difference. First operand 8524 states and 9414 transitions. Second operand has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:46,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:46,655 INFO L93 Difference]: Finished difference Result 9024 states and 9955 transitions. [2025-03-04 11:15:46,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:15:46,655 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 281 [2025-03-04 11:15:46,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:46,664 INFO L225 Difference]: With dead ends: 9024 [2025-03-04 11:15:46,665 INFO L226 Difference]: Without dead ends: 9023 [2025-03-04 11:15:46,666 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:15:46,666 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:46,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 202 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:15:46,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9023 states. [2025-03-04 11:15:46,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9023 to 8530. [2025-03-04 11:15:46,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8530 states, 7955 states have (on average 1.0408548082966687) internal successors, (8280), 7957 states have internal predecessors, (8280), 570 states have call successors, (570), 2 states have call predecessors, (570), 2 states have return successors, (570), 570 states have call predecessors, (570), 570 states have call successors, (570) [2025-03-04 11:15:46,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8530 states to 8530 states and 9420 transitions. [2025-03-04 11:15:46,982 INFO L78 Accepts]: Start accepts. Automaton has 8530 states and 9420 transitions. Word has length 281 [2025-03-04 11:15:46,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:46,982 INFO L471 AbstractCegarLoop]: Abstraction has 8530 states and 9420 transitions. [2025-03-04 11:15:46,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.636363636363637) internal successors, (128), 12 states have internal predecessors, (128), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2025-03-04 11:15:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8530 states and 9420 transitions. [2025-03-04 11:15:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2025-03-04 11:15:46,984 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:46,985 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:46,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-04 11:15:47,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-04 11:15:47,185 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:47,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash 37490475, now seen corresponding path program 3 times [2025-03-04 11:15:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997505385] [2025-03-04 11:15:47,186 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:47,191 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 293 statements into 15 equivalence classes. [2025-03-04 11:15:47,217 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 293 of 293 statements. [2025-03-04 11:15:47,217 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:47,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:47,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:47,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997505385] [2025-03-04 11:15:47,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997505385] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:47,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771878714] [2025-03-04 11:15:47,449 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 11:15:47,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:47,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:47,450 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:47,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-04 11:15:47,473 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 293 statements into 15 equivalence classes. [2025-03-04 11:15:47,514 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 293 of 293 statements. [2025-03-04 11:15:47,514 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-03-04 11:15:47,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:47,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 11:15:47,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:47,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1929 backedges. 0 proven. 1505 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-03-04 11:15:48,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771878714] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:15:48,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 11:15:48,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 32 [2025-03-04 11:15:48,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520267601] [2025-03-04 11:15:48,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:48,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-03-04 11:15:48,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:48,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-03-04 11:15:48,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:48,076 INFO L87 Difference]: Start difference. First operand 8530 states and 9420 transitions. Second operand has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2025-03-04 11:15:48,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:15:48,748 INFO L93 Difference]: Finished difference Result 13331 states and 15164 transitions. [2025-03-04 11:15:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-04 11:15:48,749 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) Word has length 293 [2025-03-04 11:15:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:15:48,765 INFO L225 Difference]: With dead ends: 13331 [2025-03-04 11:15:48,765 INFO L226 Difference]: Without dead ends: 13330 [2025-03-04 11:15:48,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2025-03-04 11:15:48,770 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 29 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:15:48,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 206 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:15:48,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13330 states. [2025-03-04 11:15:49,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13330 to 13330. [2025-03-04 11:15:49,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 12435 states have (on average 1.050583031765179) internal successors, (13064), 12437 states have internal predecessors, (13064), 890 states have call successors, (890), 2 states have call predecessors, (890), 2 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2025-03-04 11:15:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 14844 transitions. [2025-03-04 11:15:49,304 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 14844 transitions. Word has length 293 [2025-03-04 11:15:49,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:15:49,304 INFO L471 AbstractCegarLoop]: Abstraction has 13330 states and 14844 transitions. [2025-03-04 11:15:49,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 13.53125) internal successors, (433), 33 states have internal predecessors, (433), 32 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 32 states have call predecessors, (33), 32 states have call successors, (33) [2025-03-04 11:15:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 14844 transitions. [2025-03-04 11:15:49,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-04 11:15:49,307 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:15:49,307 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:15:49,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-03-04 11:15:49,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 11:15:49,508 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:15:49,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:15:49,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1474454963, now seen corresponding path program 16 times [2025-03-04 11:15:49,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:15:49,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723806618] [2025-03-04 11:15:49,508 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:49,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:15:49,514 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 300 statements into 2 equivalence classes. [2025-03-04 11:15:49,527 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:15:49,527 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:49,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:15:49,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320464869] [2025-03-04 11:15:49,528 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 11:15:49,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:15:49,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:15:49,531 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:15:49,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-04 11:15:49,564 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 300 statements into 2 equivalence classes. [2025-03-04 11:15:49,619 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:15:49,620 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 11:15:49,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:15:49,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 119 conjuncts are in the unsatisfiable core [2025-03-04 11:15:49,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:15:51,196 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:15:51,755 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:15:52,290 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:15:53,039 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:15:53,580 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:15:54,091 WARN L672 sPolynomialRelations]: Constructing 2048(two to the power of 11 dual juncts. [2025-03-04 11:15:54,935 WARN L672 sPolynomialRelations]: Constructing 4096(two to the power of 12 dual juncts. [2025-03-04 11:15:55,682 WARN L672 sPolynomialRelations]: Constructing 8192(two to the power of 13 dual juncts. [2025-03-04 11:15:56,513 WARN L672 sPolynomialRelations]: Constructing 16384(two to the power of 14 dual juncts. [2025-03-04 11:15:56,834 WARN L672 sPolynomialRelations]: Constructing 32768(two to the power of 15 dual juncts. [2025-03-04 11:15:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 108 proven. 1459 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2025-03-04 11:15:57,631 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:15:57,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:15:57,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723806618] [2025-03-04 11:15:57,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:15:57,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320464869] [2025-03-04 11:15:57,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320464869] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:15:57,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:15:57,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59] total 59 [2025-03-04 11:15:57,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156326112] [2025-03-04 11:15:57,888 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:15:57,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2025-03-04 11:15:57,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:15:57,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2025-03-04 11:15:57,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=3629, Unknown=0, NotChecked=0, Total=4032 [2025-03-04 11:15:57,890 INFO L87 Difference]: Start difference. First operand 13330 states and 14844 transitions. Second operand has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:16:03,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:16:03,084 INFO L93 Difference]: Finished difference Result 14181 states and 15749 transitions. [2025-03-04 11:16:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-03-04 11:16:03,085 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 300 [2025-03-04 11:16:03,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:16:03,105 INFO L225 Difference]: With dead ends: 14181 [2025-03-04 11:16:03,105 INFO L226 Difference]: Without dead ends: 13756 [2025-03-04 11:16:03,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1841 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=691, Invalid=6449, Unknown=0, NotChecked=0, Total=7140 [2025-03-04 11:16:03,111 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 146 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 7998 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 8010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 7998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:16:03,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 753 Invalid, 8010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 7998 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-03-04 11:16:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13756 states. [2025-03-04 11:16:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13756 to 13330. [2025-03-04 11:16:03,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13330 states, 12435 states have (on average 1.050422195416164) internal successors, (13062), 12437 states have internal predecessors, (13062), 890 states have call successors, (890), 2 states have call predecessors, (890), 2 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2025-03-04 11:16:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13330 states to 13330 states and 14842 transitions. [2025-03-04 11:16:03,706 INFO L78 Accepts]: Start accepts. Automaton has 13330 states and 14842 transitions. Word has length 300 [2025-03-04 11:16:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:16:03,706 INFO L471 AbstractCegarLoop]: Abstraction has 13330 states and 14842 transitions. [2025-03-04 11:16:03,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 57 states have (on average 3.9298245614035086) internal successors, (224), 52 states have internal predecessors, (224), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2025-03-04 11:16:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 13330 states and 14842 transitions. [2025-03-04 11:16:03,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-03-04 11:16:03,709 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:16:03,709 INFO L218 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:16:03,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-04 11:16:03,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-04 11:16:03,910 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2025-03-04 11:16:03,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:16:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1815263251, now seen corresponding path program 17 times [2025-03-04 11:16:03,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:16:03,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599650015] [2025-03-04 11:16:03,910 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:16:03,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:16:03,916 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 300 statements into 16 equivalence classes. [2025-03-04 11:16:03,932 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:16:03,933 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:16:03,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:16:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [97968363] [2025-03-04 11:16:03,934 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 11:16:03,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:16:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:16:03,936 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:16:03,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-04 11:16:03,965 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 300 statements into 16 equivalence classes. [2025-03-04 11:16:04,027 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 300 of 300 statements. [2025-03-04 11:16:04,027 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-04 11:16:04,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:16:04,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 75 conjuncts are in the unsatisfiable core [2025-03-04 11:16:04,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:16:06,921 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2025-03-04 11:16:07,659 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2025-03-04 11:16:08,451 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2025-03-04 11:16:09,290 WARN L672 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2025-03-04 11:16:09,349 WARN L672 sPolynomialRelations]: Constructing 1024(two to the power of 10 dual juncts. [2025-03-04 11:16:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1885 backedges. 42 proven. 1500 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2025-03-04 11:16:09,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:16:10,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:16:10,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599650015] [2025-03-04 11:16:10,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:16:10,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97968363] [2025-03-04 11:16:10,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97968363] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:16:10,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:16:10,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52] total 52 [2025-03-04 11:16:10,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780106626] [2025-03-04 11:16:10,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:16:10,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-03-04 11:16:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:16:10,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-03-04 11:16:10,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2874, Unknown=0, NotChecked=0, Total=3192 [2025-03-04 11:16:10,203 INFO L87 Difference]: Start difference. First operand 13330 states and 14842 transitions. Second operand has 53 states, 51 states have (on average 4.450980392156863) internal successors, (227), 50 states have internal predecessors, (227), 17 states have call successors, (17), 1 states have call predecessors, (17), 3 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17)