./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.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/egcd-ll_unwindbound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d26d8e14d33b8c29eaf9ffa7603dd26966f962451e6c0726b154a73bf65f3d2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:56:19,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:56:20,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 10:56:20,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:56:20,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:56:20,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:56:20,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:56:20,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:56:20,035 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:56:20,035 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:56:20,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:56:20,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:56:20,036 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:56:20,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:56:20,036 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:56:20,036 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:56:20,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 10:56:20,036 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:56:20,037 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:56:20,037 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:56:20,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:56:20,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:56:20,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:56:20,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:56:20,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:56:20,038 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:56:20,038 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:56:20,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:56:20,039 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 -> 2d26d8e14d33b8c29eaf9ffa7603dd26966f962451e6c0726b154a73bf65f3d2 [2025-03-04 10:56:20,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:56:20,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:56:20,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:56:20,255 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:56:20,255 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:56:20,256 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c [2025-03-04 10:56:21,397 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ef7dc30/ad5601c51d53433a9c7912dbe99133ca/FLAGb5c978da9 [2025-03-04 10:56:21,597 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:56:21,599 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_unwindbound50.c [2025-03-04 10:56:21,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ef7dc30/ad5601c51d53433a9c7912dbe99133ca/FLAGb5c978da9 [2025-03-04 10:56:21,969 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93ef7dc30/ad5601c51d53433a9c7912dbe99133ca [2025-03-04 10:56:21,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:56:21,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:56:21,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:56:21,972 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:56:21,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:56:21,976 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:56:21" (1/1) ... [2025-03-04 10:56:21,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404a5b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:21, skipping insertion in model container [2025-03-04 10:56:21,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:56:21" (1/1) ... [2025-03-04 10:56:21,986 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:56:22,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:56:22,104 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:56:22,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:56:22,131 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:56:22,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22 WrapperNode [2025-03-04 10:56:22,132 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:56:22,133 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:56:22,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:56:22,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:56:22,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,143 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,159 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2025-03-04 10:56:22,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:56:22,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:56:22,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:56:22,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:56:22,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,167 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,174 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 10:56:22,174 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:56:22,180 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:56:22,180 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:56:22,180 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:56:22,180 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (1/1) ... [2025-03-04 10:56:22,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:56:22,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:22,204 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 10:56:22,206 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 10:56:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:56:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 10:56:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 10:56:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:56:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:56:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:56:22,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 10:56:22,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 10:56:22,256 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:56:22,257 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:56:22,582 INFO L? ?]: Removed 159 outVars from TransFormulas that were not future-live. [2025-03-04 10:56:22,583 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:56:22,592 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:56:22,593 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:56:22,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:56:22 BoogieIcfgContainer [2025-03-04 10:56:22,593 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:56:22,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:56:22,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:56:22,598 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:56:22,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:56:21" (1/3) ... [2025-03-04 10:56:22,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fb2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:56:22, skipping insertion in model container [2025-03-04 10:56:22,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:56:22" (2/3) ... [2025-03-04 10:56:22,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77fb2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:56:22, skipping insertion in model container [2025-03-04 10:56:22,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:56:22" (3/3) ... [2025-03-04 10:56:22,599 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd-ll_unwindbound50.c [2025-03-04 10:56:22,608 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:56:22,609 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd-ll_unwindbound50.c that has 3 procedures, 146 locations, 1 initial locations, 1 loop locations, and 58 error locations. [2025-03-04 10:56:22,645 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:56:22,654 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;@353372ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:56:22,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-03-04 10:56:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 134 states have internal predecessors, (140), 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 10:56:22,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 10:56:22,660 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:22,661 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:22,661 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:22,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:22,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1798400375, now seen corresponding path program 1 times [2025-03-04 10:56:22,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:22,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908758615] [2025-03-04 10:56:22,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:22,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 10:56:22,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 10:56:22,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:22,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:22,760 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 10:56:22,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:22,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908758615] [2025-03-04 10:56:22,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908758615] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:22,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829029278] [2025-03-04 10:56:22,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:22,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:22,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:22,764 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 10:56:22,766 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 10:56:22,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 10:56:22,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 10:56:22,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:22,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:22,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 10:56:22,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:22,810 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 10:56:22,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:22,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829029278] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:22,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:22,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 10:56:22,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205598134] [2025-03-04 10:56:22,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:22,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 10:56:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:22,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 10:56:22,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 10:56:22,830 INFO L87 Difference]: Start difference. First operand has 146 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 134 states have internal predecessors, (140), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:56:22,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:22,851 INFO L93 Difference]: Finished difference Result 288 states and 320 transitions. [2025-03-04 10:56:22,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 10:56:22,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2025-03-04 10:56:22,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:22,855 INFO L225 Difference]: With dead ends: 288 [2025-03-04 10:56:22,856 INFO L226 Difference]: Without dead ends: 139 [2025-03-04 10:56:22,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 10:56:22,859 INFO L435 NwaCegarLoop]: 154 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, 154 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 10:56:22,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:56:22,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-03-04 10:56:22,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2025-03-04 10:56:22,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 71 states have (on average 1.8450704225352113) internal successors, (131), 128 states have internal predecessors, (131), 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 10:56:22,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 147 transitions. [2025-03-04 10:56:22,887 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 147 transitions. Word has length 15 [2025-03-04 10:56:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:22,887 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 147 transitions. [2025-03-04 10:56:22,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:56:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 147 transitions. [2025-03-04 10:56:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 10:56:22,888 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:22,888 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:22,895 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 10:56:23,089 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 10:56:23,089 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:23,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:23,090 INFO L85 PathProgramCache]: Analyzing trace with hash 728244713, now seen corresponding path program 1 times [2025-03-04 10:56:23,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:23,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676444636] [2025-03-04 10:56:23,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:23,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:23,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 10:56:23,111 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 10:56:23,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:23,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:23,195 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 10:56:23,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:23,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676444636] [2025-03-04 10:56:23,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676444636] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:23,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:23,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:23,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579343589] [2025-03-04 10:56:23,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:23,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:23,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:23,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:23,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:23,197 INFO L87 Difference]: Start difference. First operand 139 states and 147 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:56:23,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:23,239 INFO L93 Difference]: Finished difference Result 204 states and 214 transitions. [2025-03-04 10:56:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:56:23,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2025-03-04 10:56:23,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:23,241 INFO L225 Difference]: With dead ends: 204 [2025-03-04 10:56:23,241 INFO L226 Difference]: Without dead ends: 143 [2025-03-04 10:56:23,241 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 10:56:23,242 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 9 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:23,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 416 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:56:23,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-03-04 10:56:23,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2025-03-04 10:56:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 75 states have (on average 1.8) internal successors, (135), 132 states have internal predecessors, (135), 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 10:56:23,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 151 transitions. [2025-03-04 10:56:23,250 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 151 transitions. Word has length 15 [2025-03-04 10:56:23,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:23,250 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 151 transitions. [2025-03-04 10:56:23,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:56:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 151 transitions. [2025-03-04 10:56:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-03-04 10:56:23,251 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:23,251 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:23,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 10:56:23,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:23,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:23,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1258530135, now seen corresponding path program 1 times [2025-03-04 10:56:23,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:23,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506966567] [2025-03-04 10:56:23,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:23,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:23,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 10:56:23,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 10:56:23,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:23,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:23,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [188813956] [2025-03-04 10:56:23,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:23,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:23,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:23,279 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 10:56:23,279 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 10:56:23,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 10:56:23,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 10:56:23,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:23,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:23,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:56:23,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:23,335 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 10:56:23,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:23,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506966567] [2025-03-04 10:56:23,335 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188813956] [2025-03-04 10:56:23,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188813956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:23,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:23,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:23,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447502774] [2025-03-04 10:56:23,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:23,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:23,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:23,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:23,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:23,337 INFO L87 Difference]: Start difference. First operand 143 states and 151 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 10:56:23,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:23,543 INFO L93 Difference]: Finished difference Result 227 states and 274 transitions. [2025-03-04 10:56:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:23,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 10:56:23,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:23,544 INFO L225 Difference]: With dead ends: 227 [2025-03-04 10:56:23,544 INFO L226 Difference]: Without dead ends: 223 [2025-03-04 10:56:23,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 10:56:23,547 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 73 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:23,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 183 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:23,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2025-03-04 10:56:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 181. [2025-03-04 10:56:23,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 108 states have (on average 1.8240740740740742) internal successors, (197), 165 states have internal predecessors, (197), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-04 10:56:23,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 223 transitions. [2025-03-04 10:56:23,556 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 223 transitions. Word has length 18 [2025-03-04 10:56:23,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:23,556 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 223 transitions. [2025-03-04 10:56:23,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 10:56:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 223 transitions. [2025-03-04 10:56:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-04 10:56:23,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:23,557 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:23,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:23,761 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,SelfDestructingSolverStorable2 [2025-03-04 10:56:23,761 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:23,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1733314795, now seen corresponding path program 1 times [2025-03-04 10:56:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:23,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389158469] [2025-03-04 10:56:23,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:23,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:56:23,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:56:23,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:23,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:23,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104289350] [2025-03-04 10:56:23,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:23,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:23,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:23,778 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 10:56:23,779 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 10:56:23,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:56:23,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:56:23,810 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:23,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:23,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:56:23,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:23,825 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 10:56:23,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:23,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:23,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389158469] [2025-03-04 10:56:23,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:23,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104289350] [2025-03-04 10:56:23,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104289350] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:23,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:23,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:23,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737308787] [2025-03-04 10:56:23,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:23,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:23,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:23,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:23,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:23,827 INFO L87 Difference]: Start difference. First operand 181 states and 223 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:56:23,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:23,955 INFO L93 Difference]: Finished difference Result 287 states and 353 transitions. [2025-03-04 10:56:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:23,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-03-04 10:56:23,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:23,957 INFO L225 Difference]: With dead ends: 287 [2025-03-04 10:56:23,957 INFO L226 Difference]: Without dead ends: 279 [2025-03-04 10:56:23,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 10:56:23,958 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 87 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:23,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 220 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:23,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2025-03-04 10:56:23,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 237. [2025-03-04 10:56:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 158 states have (on average 1.7848101265822784) internal successors, (282), 215 states have internal predecessors, (282), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2025-03-04 10:56:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 320 transitions. [2025-03-04 10:56:23,979 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 320 transitions. Word has length 20 [2025-03-04 10:56:23,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:23,980 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 320 transitions. [2025-03-04 10:56:23,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:56:23,981 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 320 transitions. [2025-03-04 10:56:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-04 10:56:23,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:23,981 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:23,987 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 10:56:24,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:24,182 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:24,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 731795667, now seen corresponding path program 1 times [2025-03-04 10:56:24,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:24,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758000255] [2025-03-04 10:56:24,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:24,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 10:56:24,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 10:56:24,191 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:24,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:24,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100659305] [2025-03-04 10:56:24,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:24,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:24,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:24,194 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 10:56:24,195 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 10:56:24,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 10:56:24,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 10:56:24,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:24,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:24,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:56:24,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:24,288 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 10:56:24,288 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:24,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:24,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758000255] [2025-03-04 10:56:24,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:24,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100659305] [2025-03-04 10:56:24,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100659305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:24,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:24,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:24,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133707514] [2025-03-04 10:56:24,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:24,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:24,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:24,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:24,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:24,289 INFO L87 Difference]: Start difference. First operand 237 states and 320 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 10:56:24,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:24,496 INFO L93 Difference]: Finished difference Result 273 states and 339 transitions. [2025-03-04 10:56:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 22 [2025-03-04 10:56:24,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:24,497 INFO L225 Difference]: With dead ends: 273 [2025-03-04 10:56:24,497 INFO L226 Difference]: Without dead ends: 259 [2025-03-04 10:56:24,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:24,498 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 64 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:24,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 169 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2025-03-04 10:56:24,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 203. [2025-03-04 10:56:24,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 129 states have (on average 1.7054263565891472) internal successors, (220), 186 states have internal predecessors, (220), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-04 10:56:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 248 transitions. [2025-03-04 10:56:24,512 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 248 transitions. Word has length 22 [2025-03-04 10:56:24,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:24,512 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 248 transitions. [2025-03-04 10:56:24,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 10:56:24,512 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 248 transitions. [2025-03-04 10:56:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-04 10:56:24,512 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:24,513 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:24,521 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 10:56:24,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:24,720 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:24,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:24,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1723900705, now seen corresponding path program 1 times [2025-03-04 10:56:24,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:24,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071575139] [2025-03-04 10:56:24,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:24,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:24,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:56:24,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:56:24,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:24,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:24,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008234631] [2025-03-04 10:56:24,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:24,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:24,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:24,736 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 10:56:24,737 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 10:56:24,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:56:24,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:56:24,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:24,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:24,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:56:24,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:24,788 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:56:24,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:24,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:24,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071575139] [2025-03-04 10:56:24,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:24,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008234631] [2025-03-04 10:56:24,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008234631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:24,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:24,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:24,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889921514] [2025-03-04 10:56:24,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:24,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:24,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:24,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:24,790 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:24,790 INFO L87 Difference]: Start difference. First operand 203 states and 248 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 10:56:24,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:24,918 INFO L93 Difference]: Finished difference Result 369 states and 472 transitions. [2025-03-04 10:56:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:24,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2025-03-04 10:56:24,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:24,920 INFO L225 Difference]: With dead ends: 369 [2025-03-04 10:56:24,920 INFO L226 Difference]: Without dead ends: 361 [2025-03-04 10:56:24,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 10:56:24,920 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 87 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:24,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 207 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:24,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2025-03-04 10:56:24,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 284. [2025-03-04 10:56:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 201 states have (on average 1.6965174129353233) internal successors, (341), 258 states have internal predecessors, (341), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:24,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 387 transitions. [2025-03-04 10:56:24,935 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 387 transitions. Word has length 29 [2025-03-04 10:56:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:24,935 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 387 transitions. [2025-03-04 10:56:24,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 10:56:24,935 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 387 transitions. [2025-03-04 10:56:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 10:56:24,936 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:24,936 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 10:56:24,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-04 10:56:25,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:25,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:25,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:25,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1188796225, now seen corresponding path program 1 times [2025-03-04 10:56:25,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:25,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565973229] [2025-03-04 10:56:25,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:25,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:25,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:56:25,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:56:25,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:25,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:25,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [870615342] [2025-03-04 10:56:25,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:25,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:25,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:25,153 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 10:56:25,158 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 10:56:25,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:56:25,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:56:25,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:25,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:25,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:25,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:25,289 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 10:56:25,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:25,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565973229] [2025-03-04 10:56:25,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:25,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870615342] [2025-03-04 10:56:25,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870615342] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:25,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:25,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:25,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400566477] [2025-03-04 10:56:25,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:25,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:25,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:25,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:25,291 INFO L87 Difference]: Start difference. First operand 284 states and 387 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 10:56:25,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:25,482 INFO L93 Difference]: Finished difference Result 339 states and 452 transitions. [2025-03-04 10:56:25,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:25,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 31 [2025-03-04 10:56:25,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:25,483 INFO L225 Difference]: With dead ends: 339 [2025-03-04 10:56:25,483 INFO L226 Difference]: Without dead ends: 337 [2025-03-04 10:56:25,484 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 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 10:56:25,484 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 180 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:25,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 185 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:25,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-03-04 10:56:25,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 284. [2025-03-04 10:56:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 201 states have (on average 1.6766169154228856) internal successors, (337), 258 states have internal predecessors, (337), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:25,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 383 transitions. [2025-03-04 10:56:25,493 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 383 transitions. Word has length 31 [2025-03-04 10:56:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:25,493 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 383 transitions. [2025-03-04 10:56:25,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 10:56:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 383 transitions. [2025-03-04 10:56:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 10:56:25,494 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:25,494 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 10:56:25,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 10:56:25,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:25,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:25,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:25,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1802022764, now seen corresponding path program 1 times [2025-03-04 10:56:25,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:25,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582286815] [2025-03-04 10:56:25,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:25,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:25,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 10:56:25,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 10:56:25,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:25,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:25,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820145651] [2025-03-04 10:56:25,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:25,713 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 10:56:25,715 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 10:56:25,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 10:56:25,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 10:56:25,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:25,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:25,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:25,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:25,799 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 10:56:25,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:25,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:25,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582286815] [2025-03-04 10:56:25,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:25,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820145651] [2025-03-04 10:56:25,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820145651] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:25,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:25,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:25,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627006396] [2025-03-04 10:56:25,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:25,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:25,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:25,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:25,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:25,801 INFO L87 Difference]: Start difference. First operand 284 states and 383 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 10:56:25,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:25,948 INFO L93 Difference]: Finished difference Result 339 states and 448 transitions. [2025-03-04 10:56:25,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:25,949 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 10:56:25,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:25,950 INFO L225 Difference]: With dead ends: 339 [2025-03-04 10:56:25,950 INFO L226 Difference]: Without dead ends: 337 [2025-03-04 10:56:25,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:25,951 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 179 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:25,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 173 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:25,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-03-04 10:56:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 284. [2025-03-04 10:56:25,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 201 states have (on average 1.6567164179104477) internal successors, (333), 258 states have internal predecessors, (333), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:25,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 379 transitions. [2025-03-04 10:56:25,959 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 379 transitions. Word has length 32 [2025-03-04 10:56:25,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:25,960 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 379 transitions. [2025-03-04 10:56:25,960 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 10:56:25,960 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 379 transitions. [2025-03-04 10:56:25,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 10:56:25,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:25,960 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 10:56:25,966 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 10:56:26,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:26,165 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:26,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:26,165 INFO L85 PathProgramCache]: Analyzing trace with hash 28130909, now seen corresponding path program 1 times [2025-03-04 10:56:26,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:26,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820111603] [2025-03-04 10:56:26,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:26,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:26,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 10:56:26,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 10:56:26,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:26,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:26,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349908879] [2025-03-04 10:56:26,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:26,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:26,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:26,180 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 10:56:26,182 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 10:56:26,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 10:56:26,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 10:56:26,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:26,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:26,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:26,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:26,239 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 10:56:26,239 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:26,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820111603] [2025-03-04 10:56:26,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:26,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349908879] [2025-03-04 10:56:26,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349908879] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:26,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:26,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:26,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399244609] [2025-03-04 10:56:26,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:26,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:26,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:26,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:26,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:26,242 INFO L87 Difference]: Start difference. First operand 284 states and 379 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 10:56:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:26,561 INFO L93 Difference]: Finished difference Result 359 states and 452 transitions. [2025-03-04 10:56:26,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:26,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2025-03-04 10:56:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:26,563 INFO L225 Difference]: With dead ends: 359 [2025-03-04 10:56:26,563 INFO L226 Difference]: Without dead ends: 357 [2025-03-04 10:56:26,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 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 10:56:26,563 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 91 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:26,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 246 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-03-04 10:56:26,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 285. [2025-03-04 10:56:26,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 202 states have (on average 1.6386138613861385) internal successors, (331), 259 states have internal predecessors, (331), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 377 transitions. [2025-03-04 10:56:26,572 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 377 transitions. Word has length 33 [2025-03-04 10:56:26,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:26,573 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 377 transitions. [2025-03-04 10:56:26,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 10:56:26,573 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 377 transitions. [2025-03-04 10:56:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-03-04 10:56:26,574 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:26,574 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:26,580 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 10:56:26,774 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,SelfDestructingSolverStorable8 [2025-03-04 10:56:26,775 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:26,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:26,776 INFO L85 PathProgramCache]: Analyzing trace with hash 872058250, now seen corresponding path program 1 times [2025-03-04 10:56:26,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:26,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106405340] [2025-03-04 10:56:26,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:26,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:26,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 10:56:26,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 10:56:26,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:26,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:26,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136617702] [2025-03-04 10:56:26,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:26,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:26,788 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 10:56:26,790 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 10:56:26,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-04 10:56:26,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-04 10:56:26,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:26,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:26,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:26,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:26,885 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 10:56:26,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:26,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106405340] [2025-03-04 10:56:26,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:26,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136617702] [2025-03-04 10:56:26,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136617702] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:26,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:26,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:26,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634670135] [2025-03-04 10:56:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:26,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:26,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:26,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:26,887 INFO L87 Difference]: Start difference. First operand 285 states and 377 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 10:56:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:27,464 INFO L93 Difference]: Finished difference Result 359 states and 448 transitions. [2025-03-04 10:56:27,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:27,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2025-03-04 10:56:27,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:27,466 INFO L225 Difference]: With dead ends: 359 [2025-03-04 10:56:27,466 INFO L226 Difference]: Without dead ends: 357 [2025-03-04 10:56:27,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 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 10:56:27,466 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 91 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:27,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 251 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 10:56:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-03-04 10:56:27,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 286. [2025-03-04 10:56:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 203 states have (on average 1.6206896551724137) internal successors, (329), 260 states have internal predecessors, (329), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 375 transitions. [2025-03-04 10:56:27,475 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 375 transitions. Word has length 34 [2025-03-04 10:56:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:27,475 INFO L471 AbstractCegarLoop]: Abstraction has 286 states and 375 transitions. [2025-03-04 10:56:27,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-04 10:56:27,475 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 375 transitions. [2025-03-04 10:56:27,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-04 10:56:27,476 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:27,476 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:27,482 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 10:56:27,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-04 10:56:27,680 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:27,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash 686423679, now seen corresponding path program 1 times [2025-03-04 10:56:27,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:27,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757830481] [2025-03-04 10:56:27,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:27,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:27,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 10:56:27,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 10:56:27,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:27,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:27,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2073444720] [2025-03-04 10:56:27,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:27,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:27,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:27,694 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 10:56:27,696 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 10:56:27,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 10:56:27,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 10:56:27,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:27,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:27,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:27,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 10:56:27,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:27,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:27,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757830481] [2025-03-04 10:56:27,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:27,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073444720] [2025-03-04 10:56:27,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073444720] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:27,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:27,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:27,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702464887] [2025-03-04 10:56:27,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:27,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:27,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:27,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:27,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:27,788 INFO L87 Difference]: Start difference. First operand 286 states and 375 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 10:56:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:27,935 INFO L93 Difference]: Finished difference Result 310 states and 394 transitions. [2025-03-04 10:56:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 42 [2025-03-04 10:56:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:27,937 INFO L225 Difference]: With dead ends: 310 [2025-03-04 10:56:27,937 INFO L226 Difference]: Without dead ends: 308 [2025-03-04 10:56:27,937 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 10:56:27,938 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 221 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:27,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 159 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:27,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2025-03-04 10:56:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 287. [2025-03-04 10:56:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 204 states have (on average 1.607843137254902) internal successors, (328), 261 states have internal predecessors, (328), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 374 transitions. [2025-03-04 10:56:27,948 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 374 transitions. Word has length 42 [2025-03-04 10:56:27,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:27,948 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 374 transitions. [2025-03-04 10:56:27,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 10:56:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 374 transitions. [2025-03-04 10:56:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-04 10:56:27,949 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:27,949 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:27,954 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 10:56:28,149 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,SelfDestructingSolverStorable10 [2025-03-04 10:56:28,149 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:28,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash -195702369, now seen corresponding path program 1 times [2025-03-04 10:56:28,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:28,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329897696] [2025-03-04 10:56:28,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:28,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 10:56:28,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 10:56:28,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:28,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:28,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883233096] [2025-03-04 10:56:28,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:28,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:28,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:28,167 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 10:56:28,168 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 10:56:28,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 10:56:28,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 10:56:28,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:28,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:28,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:28,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 10:56:28,259 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:28,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329897696] [2025-03-04 10:56:28,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:28,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883233096] [2025-03-04 10:56:28,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883233096] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:28,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:28,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:28,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613764625] [2025-03-04 10:56:28,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:28,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:28,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:28,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:28,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:28,260 INFO L87 Difference]: Start difference. First operand 287 states and 374 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 10:56:28,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:28,469 INFO L93 Difference]: Finished difference Result 310 states and 391 transitions. [2025-03-04 10:56:28,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:28,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 43 [2025-03-04 10:56:28,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:28,470 INFO L225 Difference]: With dead ends: 310 [2025-03-04 10:56:28,470 INFO L226 Difference]: Without dead ends: 308 [2025-03-04 10:56:28,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 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 10:56:28,471 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 204 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:28,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 173 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:28,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2025-03-04 10:56:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 288. [2025-03-04 10:56:28,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 205 states have (on average 1.5951219512195123) internal successors, (327), 262 states have internal predecessors, (327), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 373 transitions. [2025-03-04 10:56:28,483 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 373 transitions. Word has length 43 [2025-03-04 10:56:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:28,484 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 373 transitions. [2025-03-04 10:56:28,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 10:56:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 373 transitions. [2025-03-04 10:56:28,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-04 10:56:28,484 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:28,485 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:28,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:28,686 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,SelfDestructingSolverStorable11 [2025-03-04 10:56:28,686 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:28,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:28,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1771806083, now seen corresponding path program 1 times [2025-03-04 10:56:28,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:28,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263806133] [2025-03-04 10:56:28,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:28,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:28,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 10:56:28,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 10:56:28,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:28,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:28,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1820207181] [2025-03-04 10:56:28,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:28,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:28,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:28,706 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 10:56:28,707 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 10:56:28,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 10:56:28,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 10:56:28,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:28,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:28,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:28,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 10:56:28,781 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:28,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:28,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263806133] [2025-03-04 10:56:28,781 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:28,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820207181] [2025-03-04 10:56:28,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820207181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:28,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:28,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401089953] [2025-03-04 10:56:28,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:28,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:28,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:28,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:28,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:28,783 INFO L87 Difference]: Start difference. First operand 288 states and 373 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 10:56:28,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:28,967 INFO L93 Difference]: Finished difference Result 318 states and 380 transitions. [2025-03-04 10:56:28,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:28,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 44 [2025-03-04 10:56:28,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:28,968 INFO L225 Difference]: With dead ends: 318 [2025-03-04 10:56:28,969 INFO L226 Difference]: Without dead ends: 316 [2025-03-04 10:56:28,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 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 10:56:28,970 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 136 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:28,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 222 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2025-03-04 10:56:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 289. [2025-03-04 10:56:28,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 206 states have (on average 1.5825242718446602) internal successors, (326), 263 states have internal predecessors, (326), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 372 transitions. [2025-03-04 10:56:28,980 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 372 transitions. Word has length 44 [2025-03-04 10:56:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:28,980 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 372 transitions. [2025-03-04 10:56:28,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 10:56:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 372 transitions. [2025-03-04 10:56:28,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-04 10:56:28,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:28,981 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:28,988 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 10:56:29,186 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,SelfDestructingSolverStorable12 [2025-03-04 10:56:29,186 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:29,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:29,186 INFO L85 PathProgramCache]: Analyzing trace with hash 908586333, now seen corresponding path program 1 times [2025-03-04 10:56:29,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:29,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3915380] [2025-03-04 10:56:29,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:29,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:29,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 10:56:29,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 10:56:29,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:29,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:29,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729027045] [2025-03-04 10:56:29,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:29,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:29,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:29,197 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 10:56:29,199 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 10:56:29,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 10:56:29,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 10:56:29,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:29,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:29,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:29,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:29,289 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-04 10:56:29,289 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:29,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3915380] [2025-03-04 10:56:29,289 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:29,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729027045] [2025-03-04 10:56:29,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729027045] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:29,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:29,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:29,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235400272] [2025-03-04 10:56:29,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:29,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:29,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:29,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:29,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:29,290 INFO L87 Difference]: Start difference. First operand 289 states and 372 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 10:56:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:29,535 INFO L93 Difference]: Finished difference Result 318 states and 377 transitions. [2025-03-04 10:56:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 45 [2025-03-04 10:56:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:29,537 INFO L225 Difference]: With dead ends: 318 [2025-03-04 10:56:29,537 INFO L226 Difference]: Without dead ends: 316 [2025-03-04 10:56:29,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 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 10:56:29,538 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 135 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:29,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 224 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:29,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2025-03-04 10:56:29,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 290. [2025-03-04 10:56:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 207 states have (on average 1.570048309178744) internal successors, (325), 264 states have internal predecessors, (325), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 371 transitions. [2025-03-04 10:56:29,546 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 371 transitions. Word has length 45 [2025-03-04 10:56:29,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:29,547 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 371 transitions. [2025-03-04 10:56:29,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 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 10:56:29,547 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 371 transitions. [2025-03-04 10:56:29,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-04 10:56:29,547 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:29,547 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:29,554 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 10:56:29,748 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,SelfDestructingSolverStorable13 [2025-03-04 10:56:29,748 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:29,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:29,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1450375920, now seen corresponding path program 1 times [2025-03-04 10:56:29,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:29,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321786432] [2025-03-04 10:56:29,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:29,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:29,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 10:56:29,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 10:56:29,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:29,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:29,792 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:29,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:29,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321786432] [2025-03-04 10:56:29,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321786432] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:29,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:29,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:29,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774416028] [2025-03-04 10:56:29,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:29,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:29,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:29,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:29,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:29,793 INFO L87 Difference]: Start difference. First operand 290 states and 371 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:56:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:29,831 INFO L93 Difference]: Finished difference Result 381 states and 488 transitions. [2025-03-04 10:56:29,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:29,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52 [2025-03-04 10:56:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:29,833 INFO L225 Difference]: With dead ends: 381 [2025-03-04 10:56:29,833 INFO L226 Difference]: Without dead ends: 379 [2025-03-04 10:56:29,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:29,833 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 46 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:29,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 298 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:56:29,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-03-04 10:56:29,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 292. [2025-03-04 10:56:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 210 states have (on average 1.5476190476190477) internal successors, (325), 266 states have internal predecessors, (325), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:29,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 371 transitions. [2025-03-04 10:56:29,845 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 371 transitions. Word has length 52 [2025-03-04 10:56:29,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:29,845 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 371 transitions. [2025-03-04 10:56:29,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:56:29,845 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 371 transitions. [2025-03-04 10:56:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 10:56:29,846 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:29,846 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:29,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 10:56:29,847 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:29,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:29,847 INFO L85 PathProgramCache]: Analyzing trace with hash 2011980585, now seen corresponding path program 1 times [2025-03-04 10:56:29,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:29,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886721621] [2025-03-04 10:56:29,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:29,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 10:56:29,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 10:56:29,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:29,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:29,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:29,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886721621] [2025-03-04 10:56:29,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886721621] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:29,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:29,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:29,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331901183] [2025-03-04 10:56:29,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:29,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:29,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:29,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:29,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:29,877 INFO L87 Difference]: Start difference. First operand 292 states and 371 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:56:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:29,909 INFO L93 Difference]: Finished difference Result 380 states and 482 transitions. [2025-03-04 10:56:29,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:29,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 53 [2025-03-04 10:56:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:29,911 INFO L225 Difference]: With dead ends: 380 [2025-03-04 10:56:29,911 INFO L226 Difference]: Without dead ends: 378 [2025-03-04 10:56:29,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:29,911 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 45 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:29,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 296 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:56:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-03-04 10:56:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 294. [2025-03-04 10:56:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 213 states have (on average 1.516431924882629) internal successors, (323), 268 states have internal predecessors, (323), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 369 transitions. [2025-03-04 10:56:29,929 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 369 transitions. Word has length 53 [2025-03-04 10:56:29,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:29,930 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 369 transitions. [2025-03-04 10:56:29,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:56:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 369 transitions. [2025-03-04 10:56:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-04 10:56:29,931 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:29,931 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:29,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-04 10:56:29,931 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:29,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:29,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2053056057, now seen corresponding path program 1 times [2025-03-04 10:56:29,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:29,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267004906] [2025-03-04 10:56:29,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:29,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:29,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 10:56:29,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 10:56:29,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:29,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:30,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:30,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267004906] [2025-03-04 10:56:30,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267004906] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:30,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:30,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:30,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932773907] [2025-03-04 10:56:30,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:30,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:30,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:30,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:30,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:30,005 INFO L87 Difference]: Start difference. First operand 294 states and 369 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:30,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:30,247 INFO L93 Difference]: Finished difference Result 381 states and 477 transitions. [2025-03-04 10:56:30,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:56:30,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2025-03-04 10:56:30,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:30,251 INFO L225 Difference]: With dead ends: 381 [2025-03-04 10:56:30,251 INFO L226 Difference]: Without dead ends: 380 [2025-03-04 10:56:30,251 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 10:56:30,252 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 186 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:30,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 187 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-03-04 10:56:30,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 296. [2025-03-04 10:56:30,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 215 states have (on average 1.5116279069767442) internal successors, (325), 270 states have internal predecessors, (325), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:30,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 371 transitions. [2025-03-04 10:56:30,261 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 371 transitions. Word has length 54 [2025-03-04 10:56:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:30,261 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 371 transitions. [2025-03-04 10:56:30,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:30,261 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 371 transitions. [2025-03-04 10:56:30,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-04 10:56:30,262 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:30,262 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:30,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-04 10:56:30,262 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:30,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2053054712, now seen corresponding path program 1 times [2025-03-04 10:56:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:30,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701040537] [2025-03-04 10:56:30,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:30,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:30,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 10:56:30,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 10:56:30,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:30,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:30,309 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:30,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:30,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701040537] [2025-03-04 10:56:30,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701040537] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:30,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:30,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:30,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433198962] [2025-03-04 10:56:30,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:30,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:30,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:30,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:30,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:30,310 INFO L87 Difference]: Start difference. First operand 296 states and 371 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:30,582 INFO L93 Difference]: Finished difference Result 381 states and 476 transitions. [2025-03-04 10:56:30,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:56:30,582 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 54 [2025-03-04 10:56:30,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:30,583 INFO L225 Difference]: With dead ends: 381 [2025-03-04 10:56:30,583 INFO L226 Difference]: Without dead ends: 380 [2025-03-04 10:56:30,584 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 10:56:30,584 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 179 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:30,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 180 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:30,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-03-04 10:56:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 296. [2025-03-04 10:56:30,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 215 states have (on average 1.5069767441860464) internal successors, (324), 270 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 370 transitions. [2025-03-04 10:56:30,593 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 370 transitions. Word has length 54 [2025-03-04 10:56:30,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:30,593 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 370 transitions. [2025-03-04 10:56:30,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:30,593 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 370 transitions. [2025-03-04 10:56:30,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-04 10:56:30,593 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:30,593 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:30,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-04 10:56:30,593 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:30,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:30,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2036302938, now seen corresponding path program 1 times [2025-03-04 10:56:30,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:30,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673609846] [2025-03-04 10:56:30,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:30,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-04 10:56:30,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-04 10:56:30,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:30,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:30,653 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:30,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:30,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673609846] [2025-03-04 10:56:30,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673609846] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:30,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:30,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:56:30,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535826581] [2025-03-04 10:56:30,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:30,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:56:30,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:30,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:56:30,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:30,655 INFO L87 Difference]: Start difference. First operand 296 states and 370 transitions. Second operand has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:30,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:30,772 INFO L93 Difference]: Finished difference Result 357 states and 438 transitions. [2025-03-04 10:56:30,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:30,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-03-04 10:56:30,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:30,774 INFO L225 Difference]: With dead ends: 357 [2025-03-04 10:56:30,774 INFO L226 Difference]: Without dead ends: 353 [2025-03-04 10:56:30,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:56:30,774 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 48 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:30,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 161 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:30,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2025-03-04 10:56:30,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 306. [2025-03-04 10:56:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 225 states have (on average 1.488888888888889) internal successors, (335), 280 states have internal predecessors, (335), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:30,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 381 transitions. [2025-03-04 10:56:30,783 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 381 transitions. Word has length 57 [2025-03-04 10:56:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:30,783 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 381 transitions. [2025-03-04 10:56:30,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.0) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 381 transitions. [2025-03-04 10:56:30,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-04 10:56:30,784 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:30,784 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:30,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-04 10:56:30,784 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:30,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1382768385, now seen corresponding path program 1 times [2025-03-04 10:56:30,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:30,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830137228] [2025-03-04 10:56:30,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:30,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:30,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 10:56:30,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 10:56:30,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:30,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:30,873 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:30,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:30,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830137228] [2025-03-04 10:56:30,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830137228] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:30,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27763768] [2025-03-04 10:56:30,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:30,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:30,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:30,875 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 10:56:30,877 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 10:56:30,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 10:56:30,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 10:56:30,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:30,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:30,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:30,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:30,973 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:30,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:30,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27763768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:30,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:30,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 10:56:30,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182426126] [2025-03-04 10:56:30,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:30,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:56:30,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:30,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:56:30,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:30,975 INFO L87 Difference]: Start difference. First operand 306 states and 381 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:31,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:31,005 INFO L93 Difference]: Finished difference Result 306 states and 381 transitions. [2025-03-04 10:56:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:31,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2025-03-04 10:56:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:31,007 INFO L225 Difference]: With dead ends: 306 [2025-03-04 10:56:31,007 INFO L226 Difference]: Without dead ends: 305 [2025-03-04 10:56:31,007 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:56:31,008 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 108 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:31,008 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 412 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:56:31,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-03-04 10:56:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2025-03-04 10:56:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 225 states have (on average 1.4755555555555555) internal successors, (332), 279 states have internal predecessors, (332), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-04 10:56:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 378 transitions. [2025-03-04 10:56:31,017 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 378 transitions. Word has length 60 [2025-03-04 10:56:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:31,018 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 378 transitions. [2025-03-04 10:56:31,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 378 transitions. [2025-03-04 10:56:31,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-04 10:56:31,018 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:31,018 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:31,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:31,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:31,219 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:31,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:31,220 INFO L85 PathProgramCache]: Analyzing trace with hash -83852927, now seen corresponding path program 1 times [2025-03-04 10:56:31,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:31,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550827965] [2025-03-04 10:56:31,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:31,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:31,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 10:56:31,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 10:56:31,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:31,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:31,284 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:31,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:31,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550827965] [2025-03-04 10:56:31,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550827965] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:31,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061322376] [2025-03-04 10:56:31,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:31,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:31,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:31,286 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 10:56:31,288 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 10:56:31,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 10:56:31,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 10:56:31,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:31,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:31,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:31,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:31,380 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:31,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061322376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:31,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:31,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-04 10:56:31,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431427974] [2025-03-04 10:56:31,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:31,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:56:31,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:31,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:56:31,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:31,381 INFO L87 Difference]: Start difference. First operand 305 states and 378 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:31,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:31,437 INFO L93 Difference]: Finished difference Result 397 states and 486 transitions. [2025-03-04 10:56:31,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:56:31,437 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2025-03-04 10:56:31,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:31,438 INFO L225 Difference]: With dead ends: 397 [2025-03-04 10:56:31,438 INFO L226 Difference]: Without dead ends: 396 [2025-03-04 10:56:31,439 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:56:31,439 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 104 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:31,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 611 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:56:31,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2025-03-04 10:56:31,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 358. [2025-03-04 10:56:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 270 states have (on average 1.4814814814814814) internal successors, (400), 325 states have internal predecessors, (400), 31 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2025-03-04 10:56:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 462 transitions. [2025-03-04 10:56:31,451 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 462 transitions. Word has length 61 [2025-03-04 10:56:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:31,452 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 462 transitions. [2025-03-04 10:56:31,452 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, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 462 transitions. [2025-03-04 10:56:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-04 10:56:31,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:31,452 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:31,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-04 10:56:31,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:31,653 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:31,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:31,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1021718811, now seen corresponding path program 1 times [2025-03-04 10:56:31,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:31,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036489536] [2025-03-04 10:56:31,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:31,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:31,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 10:56:31,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 10:56:31,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:31,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:31,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:31,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036489536] [2025-03-04 10:56:31,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036489536] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:31,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213476437] [2025-03-04 10:56:31,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:31,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:31,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:31,719 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 10:56:31,721 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 10:56:31,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 10:56:31,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 10:56:31,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:31,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:31,752 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:56:31,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:31,815 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:31,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213476437] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:31,898 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:31,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2025-03-04 10:56:31,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525214937] [2025-03-04 10:56:31,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:31,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 10:56:31,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:31,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 10:56:31,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:56:31,899 INFO L87 Difference]: Start difference. First operand 358 states and 462 transitions. Second operand has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 10:56:32,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:32,049 INFO L93 Difference]: Finished difference Result 927 states and 1134 transitions. [2025-03-04 10:56:32,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 10:56:32,050 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 63 [2025-03-04 10:56:32,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:32,054 INFO L225 Difference]: With dead ends: 927 [2025-03-04 10:56:32,054 INFO L226 Difference]: Without dead ends: 827 [2025-03-04 10:56:32,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2025-03-04 10:56:32,058 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 317 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:32,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 1090 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:32,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2025-03-04 10:56:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 687. [2025-03-04 10:56:32,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 565 states have (on average 1.4707964601769912) internal successors, (831), 625 states have internal predecessors, (831), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 955 transitions. [2025-03-04 10:56:32,088 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 955 transitions. Word has length 63 [2025-03-04 10:56:32,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:32,088 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 955 transitions. [2025-03-04 10:56:32,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.230769230769231) internal successors, (94), 13 states have internal predecessors, (94), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2025-03-04 10:56:32,089 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 955 transitions. [2025-03-04 10:56:32,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-04 10:56:32,089 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:32,089 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:32,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:32,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-04 10:56:32,290 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:32,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:32,290 INFO L85 PathProgramCache]: Analyzing trace with hash 331989534, now seen corresponding path program 1 times [2025-03-04 10:56:32,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:32,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057503138] [2025-03-04 10:56:32,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:32,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 10:56:32,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 10:56:32,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:32,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:32,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1869662946] [2025-03-04 10:56:32,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:32,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:32,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:32,304 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 10:56:32,305 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 10:56:32,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-04 10:56:32,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 10:56:32,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:32,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:32,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:56:32,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:32,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:32,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:32,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057503138] [2025-03-04 10:56:32,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:32,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869662946] [2025-03-04 10:56:32,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869662946] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:32,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:32,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-04 10:56:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680144215] [2025-03-04 10:56:32,589 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:32,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:32,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:32,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:32,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:56:32,590 INFO L87 Difference]: Start difference. First operand 687 states and 955 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:32,743 INFO L93 Difference]: Finished difference Result 732 states and 1018 transitions. [2025-03-04 10:56:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:32,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2025-03-04 10:56:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:32,747 INFO L225 Difference]: With dead ends: 732 [2025-03-04 10:56:32,747 INFO L226 Difference]: Without dead ends: 730 [2025-03-04 10:56:32,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:56:32,748 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 78 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:32,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 145 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2025-03-04 10:56:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 690. [2025-03-04 10:56:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 568 states have (on average 1.4612676056338028) internal successors, (830), 628 states have internal predecessors, (830), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 954 transitions. [2025-03-04 10:56:32,779 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 954 transitions. Word has length 63 [2025-03-04 10:56:32,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:32,780 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 954 transitions. [2025-03-04 10:56:32,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:32,780 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 954 transitions. [2025-03-04 10:56:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-04 10:56:32,781 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:32,781 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:32,787 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 10:56:32,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:32,981 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:32,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash 139095476, now seen corresponding path program 1 times [2025-03-04 10:56:32,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:32,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36388092] [2025-03-04 10:56:32,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:32,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 10:56:32,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 10:56:32,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:32,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-04 10:56:33,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:33,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36388092] [2025-03-04 10:56:33,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36388092] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:33,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132783237] [2025-03-04 10:56:33,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:33,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:33,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:33,075 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 10:56:33,076 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 10:56:33,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-04 10:56:33,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-04 10:56:33,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:33,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:33,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:56:33,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:33,279 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 10:56:33,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:33,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132783237] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:33,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:33,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-04 10:56:33,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448567584] [2025-03-04 10:56:33,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:33,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:33,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:33,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:33,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:56:33,280 INFO L87 Difference]: Start difference. First operand 690 states and 954 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:33,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:33,592 INFO L93 Difference]: Finished difference Result 737 states and 1026 transitions. [2025-03-04 10:56:33,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:56:33,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2025-03-04 10:56:33,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:33,595 INFO L225 Difference]: With dead ends: 737 [2025-03-04 10:56:33,595 INFO L226 Difference]: Without dead ends: 736 [2025-03-04 10:56:33,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:33,596 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 90 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:33,597 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 140 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2025-03-04 10:56:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 690. [2025-03-04 10:56:33,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 568 states have (on average 1.454225352112676) internal successors, (826), 628 states have internal predecessors, (826), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 950 transitions. [2025-03-04 10:56:33,625 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 950 transitions. Word has length 65 [2025-03-04 10:56:33,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:33,625 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 950 transitions. [2025-03-04 10:56:33,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:33,625 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 950 transitions. [2025-03-04 10:56:33,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-04 10:56:33,625 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:33,625 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:33,641 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 10:56:33,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:33,830 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:33,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:33,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1701741054, now seen corresponding path program 1 times [2025-03-04 10:56:33,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:33,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247563220] [2025-03-04 10:56:33,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:33,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:33,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 10:56:33,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 10:56:33,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:33,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:33,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782791936] [2025-03-04 10:56:33,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:33,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:33,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:33,841 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 10:56:33,842 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 10:56:33,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 10:56:33,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 10:56:33,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:33,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:33,873 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:56:33,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-04 10:56:34,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:34,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:34,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247563220] [2025-03-04 10:56:34,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:34,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782791936] [2025-03-04 10:56:34,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782791936] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:34,188 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:34,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2025-03-04 10:56:34,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912564081] [2025-03-04 10:56:34,189 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:34,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:34,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:34,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:34,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:56:34,189 INFO L87 Difference]: Start difference. First operand 690 states and 950 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:34,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:34,427 INFO L93 Difference]: Finished difference Result 732 states and 1007 transitions. [2025-03-04 10:56:34,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:56:34,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 64 [2025-03-04 10:56:34,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:34,431 INFO L225 Difference]: With dead ends: 732 [2025-03-04 10:56:34,431 INFO L226 Difference]: Without dead ends: 730 [2025-03-04 10:56:34,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:56:34,432 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 39 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:34,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 198 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2025-03-04 10:56:34,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 693. [2025-03-04 10:56:34,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.4448336252189142) internal successors, (825), 631 states have internal predecessors, (825), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 949 transitions. [2025-03-04 10:56:34,469 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 949 transitions. Word has length 64 [2025-03-04 10:56:34,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:34,469 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 949 transitions. [2025-03-04 10:56:34,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:34,469 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 949 transitions. [2025-03-04 10:56:34,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-04 10:56:34,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:34,469 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:34,475 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-04 10:56:34,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:34,670 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:34,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:34,671 INFO L85 PathProgramCache]: Analyzing trace with hash 16992468, now seen corresponding path program 1 times [2025-03-04 10:56:34,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:34,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306119450] [2025-03-04 10:56:34,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:34,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 10:56:34,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 10:56:34,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:34,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:34,755 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:34,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:34,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306119450] [2025-03-04 10:56:34,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306119450] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:34,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650259203] [2025-03-04 10:56:34,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:34,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:34,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:34,757 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 10:56:34,759 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 10:56:34,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-04 10:56:34,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-04 10:56:34,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:34,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:34,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:56:34,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:34,939 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-04 10:56:34,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:34,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650259203] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:34,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:34,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2025-03-04 10:56:34,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265508030] [2025-03-04 10:56:34,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:34,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:34,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:34,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:34,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:34,941 INFO L87 Difference]: Start difference. First operand 693 states and 949 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:35,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:35,263 INFO L93 Difference]: Finished difference Result 737 states and 1015 transitions. [2025-03-04 10:56:35,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:35,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 66 [2025-03-04 10:56:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:35,265 INFO L225 Difference]: With dead ends: 737 [2025-03-04 10:56:35,266 INFO L226 Difference]: Without dead ends: 736 [2025-03-04 10:56:35,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:56:35,266 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 87 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:35,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 149 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:35,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2025-03-04 10:56:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 693. [2025-03-04 10:56:35,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.4378283712784588) internal successors, (821), 631 states have internal predecessors, (821), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:35,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 945 transitions. [2025-03-04 10:56:35,292 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 945 transitions. Word has length 66 [2025-03-04 10:56:35,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:35,292 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 945 transitions. [2025-03-04 10:56:35,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 945 transitions. [2025-03-04 10:56:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-04 10:56:35,293 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:35,293 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:35,299 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 10:56:35,493 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,SelfDestructingSolverStorable25 [2025-03-04 10:56:35,494 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:35,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:35,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1226132966, now seen corresponding path program 1 times [2025-03-04 10:56:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:35,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653207086] [2025-03-04 10:56:35,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:35,498 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-04 10:56:35,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 10:56:35,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:35,505 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147174071] [2025-03-04 10:56:35,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:35,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:35,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:35,508 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 10:56:35,509 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 10:56:35,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-04 10:56:35,542 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-04 10:56:35,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:35,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:35,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:35,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-04 10:56:35,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:35,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:35,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653207086] [2025-03-04 10:56:35,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:35,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147174071] [2025-03-04 10:56:35,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147174071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:35,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:35,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:35,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002303955] [2025-03-04 10:56:35,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:35,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:35,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:35,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:35,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:35,594 INFO L87 Difference]: Start difference. First operand 693 states and 945 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:35,862 INFO L93 Difference]: Finished difference Result 745 states and 996 transitions. [2025-03-04 10:56:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:35,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 67 [2025-03-04 10:56:35,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:35,865 INFO L225 Difference]: With dead ends: 745 [2025-03-04 10:56:35,865 INFO L226 Difference]: Without dead ends: 744 [2025-03-04 10:56:35,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 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 10:56:35,865 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 80 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:35,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 225 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:35,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2025-03-04 10:56:35,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 693. [2025-03-04 10:56:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 571 states have (on average 1.4325744308231174) internal successors, (818), 631 states have internal predecessors, (818), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:35,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 942 transitions. [2025-03-04 10:56:35,902 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 942 transitions. Word has length 67 [2025-03-04 10:56:35,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:35,902 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 942 transitions. [2025-03-04 10:56:35,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 942 transitions. [2025-03-04 10:56:35,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-04 10:56:35,903 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:35,903 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:35,910 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 10:56:36,103 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,SelfDestructingSolverStorable26 [2025-03-04 10:56:36,104 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:36,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:36,104 INFO L85 PathProgramCache]: Analyzing trace with hash 644583802, now seen corresponding path program 1 times [2025-03-04 10:56:36,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:36,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982319569] [2025-03-04 10:56:36,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:36,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:36,108 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 10:56:36,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 10:56:36,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:36,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:36,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [114052772] [2025-03-04 10:56:36,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:36,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:36,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:36,116 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 10:56:36,117 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 10:56:36,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-04 10:56:36,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-04 10:56:36,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:36,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:36,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:36,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:36,247 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 10:56:36,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:56:36,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982319569] [2025-03-04 10:56:36,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114052772] [2025-03-04 10:56:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114052772] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:56:36,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:56:36,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:56:36,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608132721] [2025-03-04 10:56:36,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:56:36,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:56:36,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:36,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:56:36,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:56:36,248 INFO L87 Difference]: Start difference. First operand 693 states and 942 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:36,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:36,699 INFO L93 Difference]: Finished difference Result 747 states and 993 transitions. [2025-03-04 10:56:36,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:56:36,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 68 [2025-03-04 10:56:36,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:36,702 INFO L225 Difference]: With dead ends: 747 [2025-03-04 10:56:36,702 INFO L226 Difference]: Without dead ends: 744 [2025-03-04 10:56:36,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 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 10:56:36,705 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 80 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:36,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 228 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:56:36,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2025-03-04 10:56:36,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 702. [2025-03-04 10:56:36,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 580 states have (on average 1.4224137931034482) internal successors, (825), 640 states have internal predecessors, (825), 62 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 55 states have call predecessors, (62), 62 states have call successors, (62) [2025-03-04 10:56:36,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 949 transitions. [2025-03-04 10:56:36,733 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 949 transitions. Word has length 68 [2025-03-04 10:56:36,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:36,733 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 949 transitions. [2025-03-04 10:56:36,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:56:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 949 transitions. [2025-03-04 10:56:36,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-04 10:56:36,734 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:36,734 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:36,740 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 10:56:36,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-04 10:56:36,935 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:36,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:36,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1097274937, now seen corresponding path program 1 times [2025-03-04 10:56:36,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:36,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688433282] [2025-03-04 10:56:36,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:36,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:36,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 10:56:36,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 10:56:36,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:36,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:36,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775694857] [2025-03-04 10:56:36,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:36,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:36,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:36,951 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 10:56:36,953 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 10:56:36,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-04 10:56:36,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-04 10:56:36,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:36,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:36,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:36,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:37,242 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:37,242 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:37,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:37,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688433282] [2025-03-04 10:56:37,333 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:37,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775694857] [2025-03-04 10:56:37,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775694857] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:37,333 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:37,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:37,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520494540] [2025-03-04 10:56:37,333 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:37,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:37,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:37,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:37,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:37,334 INFO L87 Difference]: Start difference. First operand 702 states and 949 transitions. Second operand has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:37,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:37,672 INFO L93 Difference]: Finished difference Result 859 states and 1166 transitions. [2025-03-04 10:56:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:56:37,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 74 [2025-03-04 10:56:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:37,675 INFO L225 Difference]: With dead ends: 859 [2025-03-04 10:56:37,675 INFO L226 Difference]: Without dead ends: 855 [2025-03-04 10:56:37,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:37,675 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 276 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:37,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 342 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:37,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2025-03-04 10:56:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 763. [2025-03-04 10:56:37,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 633 states have (on average 1.4375987361769351) internal successors, (910), 695 states have internal predecessors, (910), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-04 10:56:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1050 transitions. [2025-03-04 10:56:37,723 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1050 transitions. Word has length 74 [2025-03-04 10:56:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:37,723 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1050 transitions. [2025-03-04 10:56:37,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.833333333333334) internal successors, (53), 7 states have internal predecessors, (53), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1050 transitions. [2025-03-04 10:56:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-04 10:56:37,724 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:37,724 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:37,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:37,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:37,925 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:37,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:37,925 INFO L85 PathProgramCache]: Analyzing trace with hash -344215242, now seen corresponding path program 1 times [2025-03-04 10:56:37,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:37,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223291006] [2025-03-04 10:56:37,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:37,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:37,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-04 10:56:37,936 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-04 10:56:37,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:37,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:37,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143311836] [2025-03-04 10:56:37,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:37,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:37,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:37,941 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 10:56:37,943 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 10:56:37,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-04 10:56:37,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-04 10:56:37,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:37,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:37,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:37,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:38,193 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:38,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:38,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223291006] [2025-03-04 10:56:38,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:38,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143311836] [2025-03-04 10:56:38,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143311836] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:38,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:38,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:38,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900758114] [2025-03-04 10:56:38,396 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:38,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:38,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:38,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:38,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:38,397 INFO L87 Difference]: Start difference. First operand 763 states and 1050 transitions. Second operand has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:38,790 INFO L93 Difference]: Finished difference Result 785 states and 1063 transitions. [2025-03-04 10:56:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:56:38,790 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 75 [2025-03-04 10:56:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:38,792 INFO L225 Difference]: With dead ends: 785 [2025-03-04 10:56:38,792 INFO L226 Difference]: Without dead ends: 779 [2025-03-04 10:56:38,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:56:38,793 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 156 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:38,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 408 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:56:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2025-03-04 10:56:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 757. [2025-03-04 10:56:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 633 states have (on average 1.3886255924170616) internal successors, (879), 689 states have internal predecessors, (879), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-04 10:56:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1019 transitions. [2025-03-04 10:56:38,838 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1019 transitions. Word has length 75 [2025-03-04 10:56:38,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:38,838 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1019 transitions. [2025-03-04 10:56:38,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.0) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:38,839 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1019 transitions. [2025-03-04 10:56:38,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-04 10:56:38,839 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:38,839 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:38,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:39,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:39,040 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:39,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:39,041 INFO L85 PathProgramCache]: Analyzing trace with hash -2080737833, now seen corresponding path program 1 times [2025-03-04 10:56:39,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:39,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868432888] [2025-03-04 10:56:39,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:39,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:39,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-04 10:56:39,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-04 10:56:39,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:39,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:39,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369999157] [2025-03-04 10:56:39,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:39,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:39,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:39,056 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 10:56:39,057 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 10:56:39,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-04 10:56:39,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-04 10:56:39,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:39,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:39,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:39,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:39,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:39,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:39,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868432888] [2025-03-04 10:56:39,376 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:39,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369999157] [2025-03-04 10:56:39,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369999157] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:39,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:39,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:39,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812933756] [2025-03-04 10:56:39,377 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:39,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:39,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:39,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:39,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:39,377 INFO L87 Difference]: Start difference. First operand 757 states and 1019 transitions. Second operand has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 10:56:39,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:39,549 INFO L93 Difference]: Finished difference Result 757 states and 1019 transitions. [2025-03-04 10:56:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:56:39,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 76 [2025-03-04 10:56:39,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:39,552 INFO L225 Difference]: With dead ends: 757 [2025-03-04 10:56:39,552 INFO L226 Difference]: Without dead ends: 751 [2025-03-04 10:56:39,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:39,552 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 109 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:39,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 195 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:56:39,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2025-03-04 10:56:39,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 750. [2025-03-04 10:56:39,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 632 states have (on average 1.3354430379746836) internal successors, (844), 682 states have internal predecessors, (844), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-04 10:56:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 984 transitions. [2025-03-04 10:56:39,581 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 984 transitions. Word has length 76 [2025-03-04 10:56:39,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:39,581 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 984 transitions. [2025-03-04 10:56:39,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 10:56:39,582 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 984 transitions. [2025-03-04 10:56:39,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-03-04 10:56:39,582 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:39,582 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:39,588 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:39,782 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,SelfDestructingSolverStorable30 [2025-03-04 10:56:39,783 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:39,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:39,783 INFO L85 PathProgramCache]: Analyzing trace with hash -78363308, now seen corresponding path program 1 times [2025-03-04 10:56:39,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:39,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103000913] [2025-03-04 10:56:39,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:39,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:39,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-04 10:56:39,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-04 10:56:39,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:39,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:39,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592292686] [2025-03-04 10:56:39,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:39,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:39,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:39,793 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 10:56:39,795 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 10:56:39,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-03-04 10:56:39,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-03-04 10:56:39,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:39,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:39,826 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:39,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:40,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:40,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:40,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103000913] [2025-03-04 10:56:40,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:40,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592292686] [2025-03-04 10:56:40,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592292686] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:40,230 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:40,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942193001] [2025-03-04 10:56:40,230 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:40,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:40,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:40,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:40,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:40,231 INFO L87 Difference]: Start difference. First operand 750 states and 984 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 10:56:40,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:40,549 INFO L93 Difference]: Finished difference Result 973 states and 1319 transitions. [2025-03-04 10:56:40,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:56:40,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 77 [2025-03-04 10:56:40,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:40,556 INFO L225 Difference]: With dead ends: 973 [2025-03-04 10:56:40,556 INFO L226 Difference]: Without dead ends: 971 [2025-03-04 10:56:40,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:40,558 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 420 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:40,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 313 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:40,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2025-03-04 10:56:40,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 882. [2025-03-04 10:56:40,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 750 states have (on average 1.3506666666666667) internal successors, (1013), 800 states have internal predecessors, (1013), 84 states have call successors, (84), 6 states have call predecessors, (84), 6 states have return successors, (84), 75 states have call predecessors, (84), 84 states have call successors, (84) [2025-03-04 10:56:40,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1181 transitions. [2025-03-04 10:56:40,595 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1181 transitions. Word has length 77 [2025-03-04 10:56:40,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:40,596 INFO L471 AbstractCegarLoop]: Abstraction has 882 states and 1181 transitions. [2025-03-04 10:56:40,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 10:56:40,596 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1181 transitions. [2025-03-04 10:56:40,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-03-04 10:56:40,596 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:40,596 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:40,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-04 10:56:40,797 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,SelfDestructingSolverStorable31 [2025-03-04 10:56:40,797 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:40,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:40,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1865704821, now seen corresponding path program 1 times [2025-03-04 10:56:40,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:40,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123873065] [2025-03-04 10:56:40,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:40,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:40,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-04 10:56:40,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 10:56:40,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:40,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:40,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643454752] [2025-03-04 10:56:40,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:40,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:40,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:40,811 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 10:56:40,812 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 10:56:40,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-03-04 10:56:40,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-03-04 10:56:40,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:40,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:40,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 10:56:40,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:41,067 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:41,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:41,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123873065] [2025-03-04 10:56:41,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643454752] [2025-03-04 10:56:41,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643454752] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:41,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:41,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 10:56:41,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503121720] [2025-03-04 10:56:41,128 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:41,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 10:56:41,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:41,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 10:56:41,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:56:41,128 INFO L87 Difference]: Start difference. First operand 882 states and 1181 transitions. Second operand has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 10:56:41,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:41,410 INFO L93 Difference]: Finished difference Result 926 states and 1247 transitions. [2025-03-04 10:56:41,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:56:41,411 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 78 [2025-03-04 10:56:41,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:41,413 INFO L225 Difference]: With dead ends: 926 [2025-03-04 10:56:41,413 INFO L226 Difference]: Without dead ends: 922 [2025-03-04 10:56:41,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:56:41,414 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 183 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:41,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 179 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:41,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2025-03-04 10:56:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 803. [2025-03-04 10:56:41,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 681 states have (on average 1.3098384728340675) internal successors, (892), 729 states have internal predecessors, (892), 76 states have call successors, (76), 6 states have call predecessors, (76), 6 states have return successors, (76), 67 states have call predecessors, (76), 76 states have call successors, (76) [2025-03-04 10:56:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1044 transitions. [2025-03-04 10:56:41,449 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1044 transitions. Word has length 78 [2025-03-04 10:56:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:41,451 INFO L471 AbstractCegarLoop]: Abstraction has 803 states and 1044 transitions. [2025-03-04 10:56:41,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 10:56:41,451 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1044 transitions. [2025-03-04 10:56:41,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-03-04 10:56:41,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:41,452 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:41,458 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 10:56:41,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:41,656 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:41,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:41,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2002274674, now seen corresponding path program 1 times [2025-03-04 10:56:41,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:41,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372052660] [2025-03-04 10:56:41,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:41,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-04 10:56:41,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-04 10:56:41,666 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:41,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:41,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1805981450] [2025-03-04 10:56:41,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:41,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:41,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:41,668 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 10:56:41,670 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 10:56:41,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-03-04 10:56:41,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-03-04 10:56:41,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:41,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:41,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:41,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 17 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-04 10:56:41,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:42,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:42,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372052660] [2025-03-04 10:56:42,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:42,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805981450] [2025-03-04 10:56:42,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805981450] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:42,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:42,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:42,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799190173] [2025-03-04 10:56:42,018 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:42,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:42,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:42,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:42,019 INFO L87 Difference]: Start difference. First operand 803 states and 1044 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:42,408 INFO L93 Difference]: Finished difference Result 849 states and 1094 transitions. [2025-03-04 10:56:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:56:42,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 79 [2025-03-04 10:56:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:42,411 INFO L225 Difference]: With dead ends: 849 [2025-03-04 10:56:42,411 INFO L226 Difference]: Without dead ends: 845 [2025-03-04 10:56:42,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:56:42,412 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 195 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:42,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 385 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2025-03-04 10:56:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 755. [2025-03-04 10:56:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 755 states, 641 states have (on average 1.2761310452418098) internal successors, (818), 687 states have internal predecessors, (818), 70 states have call successors, (70), 6 states have call predecessors, (70), 6 states have return successors, (70), 61 states have call predecessors, (70), 70 states have call successors, (70) [2025-03-04 10:56:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 958 transitions. [2025-03-04 10:56:42,451 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 958 transitions. Word has length 79 [2025-03-04 10:56:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:42,451 INFO L471 AbstractCegarLoop]: Abstraction has 755 states and 958 transitions. [2025-03-04 10:56:42,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-04 10:56:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 958 transitions. [2025-03-04 10:56:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-04 10:56:42,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:42,452 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:42,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-04 10:56:42,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:42,652 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:42,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1901842440, now seen corresponding path program 1 times [2025-03-04 10:56:42,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522705484] [2025-03-04 10:56:42,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:42,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-04 10:56:42,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-04 10:56:42,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:42,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:42,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1534885492] [2025-03-04 10:56:42,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:42,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:42,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:42,663 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 10:56:42,665 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 10:56:42,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-04 10:56:42,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-04 10:56:42,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:42,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:42,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:42,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-04 10:56:42,914 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:44,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:44,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522705484] [2025-03-04 10:56:44,219 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:44,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534885492] [2025-03-04 10:56:44,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534885492] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:44,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:44,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:44,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886255867] [2025-03-04 10:56:44,220 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:44,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:44,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:44,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:44,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2025-03-04 10:56:44,220 INFO L87 Difference]: Start difference. First operand 755 states and 958 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-04 10:56:44,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:44,487 INFO L93 Difference]: Finished difference Result 902 states and 1155 transitions. [2025-03-04 10:56:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:56:44,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 85 [2025-03-04 10:56:44,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:44,491 INFO L225 Difference]: With dead ends: 902 [2025-03-04 10:56:44,491 INFO L226 Difference]: Without dead ends: 900 [2025-03-04 10:56:44,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2025-03-04 10:56:44,491 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 495 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:44,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 288 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:56:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2025-03-04 10:56:44,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 863. [2025-03-04 10:56:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 738 states have (on average 1.3075880758807588) internal successors, (965), 784 states have internal predecessors, (965), 81 states have call successors, (81), 6 states have call predecessors, (81), 6 states have return successors, (81), 72 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 10:56:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1127 transitions. [2025-03-04 10:56:44,527 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1127 transitions. Word has length 85 [2025-03-04 10:56:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:44,528 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1127 transitions. [2025-03-04 10:56:44,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-04 10:56:44,528 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1127 transitions. [2025-03-04 10:56:44,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-04 10:56:44,528 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:44,528 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:44,535 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 10:56:44,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:44,733 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:44,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:44,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1081899900, now seen corresponding path program 1 times [2025-03-04 10:56:44,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:44,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938465194] [2025-03-04 10:56:44,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:44,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:44,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-04 10:56:44,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-04 10:56:44,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:44,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:44,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757516113] [2025-03-04 10:56:44,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:44,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:44,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:44,744 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 10:56:44,747 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 10:56:44,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-03-04 10:56:44,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-03-04 10:56:44,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:44,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:44,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-04 10:56:44,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:45,214 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-04 10:56:45,214 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:45,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938465194] [2025-03-04 10:56:45,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:45,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757516113] [2025-03-04 10:56:45,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757516113] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:45,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:45,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-04 10:56:45,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573275214] [2025-03-04 10:56:45,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:45,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 10:56:45,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:45,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 10:56:45,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-03-04 10:56:45,257 INFO L87 Difference]: Start difference. First operand 863 states and 1127 transitions. Second operand has 13 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-03-04 10:56:45,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:45,941 INFO L93 Difference]: Finished difference Result 1115 states and 1497 transitions. [2025-03-04 10:56:45,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 10:56:45,941 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 89 [2025-03-04 10:56:45,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:45,944 INFO L225 Difference]: With dead ends: 1115 [2025-03-04 10:56:45,944 INFO L226 Difference]: Without dead ends: 1080 [2025-03-04 10:56:45,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2025-03-04 10:56:45,945 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 412 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:45,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 416 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 10:56:45,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2025-03-04 10:56:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 966. [2025-03-04 10:56:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 830 states have (on average 1.3385542168674698) internal successors, (1111), 877 states have internal predecessors, (1111), 92 states have call successors, (92), 6 states have call predecessors, (92), 6 states have return successors, (92), 82 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-04 10:56:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1295 transitions. [2025-03-04 10:56:45,985 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1295 transitions. Word has length 89 [2025-03-04 10:56:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:45,986 INFO L471 AbstractCegarLoop]: Abstraction has 966 states and 1295 transitions. [2025-03-04 10:56:45,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 12 states have internal predecessors, (66), 5 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2025-03-04 10:56:45,986 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1295 transitions. [2025-03-04 10:56:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-04 10:56:45,986 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:45,986 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:45,993 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 10:56:46,187 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,SelfDestructingSolverStorable35 [2025-03-04 10:56:46,187 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:46,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:46,187 INFO L85 PathProgramCache]: Analyzing trace with hash 820841526, now seen corresponding path program 1 times [2025-03-04 10:56:46,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:46,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892453367] [2025-03-04 10:56:46,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:46,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:46,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 10:56:46,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 10:56:46,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:46,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:46,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [944334722] [2025-03-04 10:56:46,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:46,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:46,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:46,198 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 10:56:46,199 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 10:56:46,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-04 10:56:46,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-04 10:56:46,231 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:46,231 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:46,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:56:46,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:46,436 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-04 10:56:46,436 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:46,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:46,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892453367] [2025-03-04 10:56:46,524 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:46,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [944334722] [2025-03-04 10:56:46,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [944334722] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:46,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:46,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:56:46,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444221954] [2025-03-04 10:56:46,524 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:46,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:46,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:46,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:46,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:46,525 INFO L87 Difference]: Start difference. First operand 966 states and 1295 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-04 10:56:47,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:47,059 INFO L93 Difference]: Finished difference Result 1031 states and 1381 transitions. [2025-03-04 10:56:47,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:56:47,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 90 [2025-03-04 10:56:47,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:47,062 INFO L225 Difference]: With dead ends: 1031 [2025-03-04 10:56:47,062 INFO L226 Difference]: Without dead ends: 1027 [2025-03-04 10:56:47,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:56:47,063 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 220 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:47,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 379 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 10:56:47,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2025-03-04 10:56:47,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 995. [2025-03-04 10:56:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 861 states have (on average 1.335656213704994) internal successors, (1150), 902 states have internal predecessors, (1150), 92 states have call successors, (92), 6 states have call predecessors, (92), 6 states have return successors, (92), 86 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-04 10:56:47,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1334 transitions. [2025-03-04 10:56:47,104 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1334 transitions. Word has length 90 [2025-03-04 10:56:47,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:47,104 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1334 transitions. [2025-03-04 10:56:47,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2025-03-04 10:56:47,104 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1334 transitions. [2025-03-04 10:56:47,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-04 10:56:47,105 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:47,105 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:47,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:47,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-04 10:56:47,305 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:47,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:47,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1636724305, now seen corresponding path program 1 times [2025-03-04 10:56:47,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:47,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670940949] [2025-03-04 10:56:47,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:47,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:47,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 10:56:47,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 10:56:47,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:47,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:47,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:47,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670940949] [2025-03-04 10:56:47,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670940949] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:47,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596130427] [2025-03-04 10:56:47,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:47,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:47,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:47,383 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 10:56:47,384 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 10:56:47,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 10:56:47,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 10:56:47,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:47,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:47,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:56:47,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:47,583 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:47,583 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:47,697 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:47,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596130427] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:47,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:47,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 10:56:47,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57154720] [2025-03-04 10:56:47,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:47,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 10:56:47,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:47,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 10:56:47,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:56:47,699 INFO L87 Difference]: Start difference. First operand 995 states and 1334 transitions. Second operand has 11 states, 10 states have (on average 18.1) internal successors, (181), 11 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-04 10:56:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:48,191 INFO L93 Difference]: Finished difference Result 1126 states and 1454 transitions. [2025-03-04 10:56:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 10:56:48,191 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 18.1) internal successors, (181), 11 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 99 [2025-03-04 10:56:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:48,195 INFO L225 Difference]: With dead ends: 1126 [2025-03-04 10:56:48,196 INFO L226 Difference]: Without dead ends: 1125 [2025-03-04 10:56:48,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2025-03-04 10:56:48,200 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 801 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:48,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 505 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:56:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2025-03-04 10:56:48,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1045. [2025-03-04 10:56:48,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 905 states have (on average 1.329281767955801) internal successors, (1203), 946 states have internal predecessors, (1203), 98 states have call successors, (98), 6 states have call predecessors, (98), 6 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-04 10:56:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1399 transitions. [2025-03-04 10:56:48,253 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1399 transitions. Word has length 99 [2025-03-04 10:56:48,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:48,253 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1399 transitions. [2025-03-04 10:56:48,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 18.1) internal successors, (181), 11 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-04 10:56:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1399 transitions. [2025-03-04 10:56:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-04 10:56:48,254 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:48,254 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:48,259 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 10:56:48,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 10:56:48,458 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:48,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:48,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1636722960, now seen corresponding path program 1 times [2025-03-04 10:56:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:48,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261652709] [2025-03-04 10:56:48,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:48,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 10:56:48,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 10:56:48,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:48,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:48,516 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261652709] [2025-03-04 10:56:48,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261652709] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389896038] [2025-03-04 10:56:48,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:48,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:48,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:48,519 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 10:56:48,520 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 10:56:48,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 10:56:48,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 10:56:48,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:48,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:48,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:56:48,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:48,667 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:48,766 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:48,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389896038] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:48,767 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:48,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2025-03-04 10:56:48,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234206568] [2025-03-04 10:56:48,767 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:48,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 10:56:48,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:48,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 10:56:48,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:56:48,768 INFO L87 Difference]: Start difference. First operand 1045 states and 1399 transitions. Second operand has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-04 10:56:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:49,463 INFO L93 Difference]: Finished difference Result 1555 states and 2025 transitions. [2025-03-04 10:56:49,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-04 10:56:49,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 99 [2025-03-04 10:56:49,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:49,467 INFO L225 Difference]: With dead ends: 1555 [2025-03-04 10:56:49,467 INFO L226 Difference]: Without dead ends: 1553 [2025-03-04 10:56:49,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=524, Invalid=1368, Unknown=0, NotChecked=0, Total=1892 [2025-03-04 10:56:49,468 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 1567 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:49,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 833 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:56:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2025-03-04 10:56:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1172. [2025-03-04 10:56:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1172 states, 1019 states have (on average 1.336604514229637) internal successors, (1362), 1060 states have internal predecessors, (1362), 111 states have call successors, (111), 6 states have call predecessors, (111), 6 states have return successors, (111), 105 states have call predecessors, (111), 111 states have call successors, (111) [2025-03-04 10:56:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1584 transitions. [2025-03-04 10:56:49,522 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1584 transitions. Word has length 99 [2025-03-04 10:56:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:49,522 INFO L471 AbstractCegarLoop]: Abstraction has 1172 states and 1584 transitions. [2025-03-04 10:56:49,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 13.923076923076923) internal successors, (181), 14 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-04 10:56:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1584 transitions. [2025-03-04 10:56:49,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-04 10:56:49,522 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:49,522 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:49,529 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 10:56:49,723 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,SelfDestructingSolverStorable38 [2025-03-04 10:56:49,723 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:49,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:49,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2046925745, now seen corresponding path program 1 times [2025-03-04 10:56:49,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:49,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425519262] [2025-03-04 10:56:49,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:49,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 10:56:49,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 10:56:49,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:49,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:49,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:49,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425519262] [2025-03-04 10:56:49,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425519262] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:49,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894159070] [2025-03-04 10:56:49,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:49,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:49,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:49,780 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 10:56:49,781 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 10:56:49,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-04 10:56:49,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-04 10:56:49,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:49,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:49,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:56:49,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:49,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:50,066 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:50,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894159070] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:50,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:50,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 10:56:50,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204801300] [2025-03-04 10:56:50,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:50,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 10:56:50,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:50,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 10:56:50,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:56:50,067 INFO L87 Difference]: Start difference. First operand 1172 states and 1584 transitions. Second operand has 11 states, 10 states have (on average 18.1) internal successors, (181), 11 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-04 10:56:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:50,451 INFO L93 Difference]: Finished difference Result 1306 states and 1706 transitions. [2025-03-04 10:56:50,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-04 10:56:50,451 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 18.1) internal successors, (181), 11 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 99 [2025-03-04 10:56:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:50,455 INFO L225 Difference]: With dead ends: 1306 [2025-03-04 10:56:50,455 INFO L226 Difference]: Without dead ends: 1305 [2025-03-04 10:56:50,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2025-03-04 10:56:50,455 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 1183 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:50,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 483 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:50,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2025-03-04 10:56:50,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1197. [2025-03-04 10:56:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 1041 states have (on average 1.33045148895293) internal successors, (1385), 1082 states have internal predecessors, (1385), 114 states have call successors, (114), 6 states have call predecessors, (114), 6 states have return successors, (114), 108 states have call predecessors, (114), 114 states have call successors, (114) [2025-03-04 10:56:50,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1613 transitions. [2025-03-04 10:56:50,510 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1613 transitions. Word has length 99 [2025-03-04 10:56:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:50,511 INFO L471 AbstractCegarLoop]: Abstraction has 1197 states and 1613 transitions. [2025-03-04 10:56:50,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 18.1) internal successors, (181), 11 states have internal predecessors, (181), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2025-03-04 10:56:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1613 transitions. [2025-03-04 10:56:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-04 10:56:50,511 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:50,512 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:50,517 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 10:56:50,712 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,SelfDestructingSolverStorable39 [2025-03-04 10:56:50,712 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:50,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:50,713 INFO L85 PathProgramCache]: Analyzing trace with hash 969811392, now seen corresponding path program 1 times [2025-03-04 10:56:50,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:50,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174534525] [2025-03-04 10:56:50,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:50,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:50,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-04 10:56:50,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-04 10:56:50,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:50,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:50,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:50,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174534525] [2025-03-04 10:56:50,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174534525] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:50,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158076266] [2025-03-04 10:56:50,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:50,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:50,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:50,769 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 10:56:50,771 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 10:56:50,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-04 10:56:50,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-04 10:56:50,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:50,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:50,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:50,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:50,940 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:50,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:51,036 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:51,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158076266] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:51,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:51,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-03-04 10:56:51,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575281126] [2025-03-04 10:56:51,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:51,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:51,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:51,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:51,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:56:51,037 INFO L87 Difference]: Start difference. First operand 1197 states and 1613 transitions. Second operand has 8 states, 7 states have (on average 26.0) internal successors, (182), 8 states have internal predecessors, (182), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:56:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:51,398 INFO L93 Difference]: Finished difference Result 1615 states and 2202 transitions. [2025-03-04 10:56:51,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:56:51,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.0) internal successors, (182), 8 states have internal predecessors, (182), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 100 [2025-03-04 10:56:51,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:51,403 INFO L225 Difference]: With dead ends: 1615 [2025-03-04 10:56:51,403 INFO L226 Difference]: Without dead ends: 1613 [2025-03-04 10:56:51,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:56:51,404 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 261 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:51,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 361 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:51,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2025-03-04 10:56:51,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1336. [2025-03-04 10:56:51,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1168 states have (on average 1.3356164383561644) internal successors, (1560), 1209 states have internal predecessors, (1560), 126 states have call successors, (126), 6 states have call predecessors, (126), 6 states have return successors, (126), 120 states have call predecessors, (126), 126 states have call successors, (126) [2025-03-04 10:56:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1812 transitions. [2025-03-04 10:56:51,468 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1812 transitions. Word has length 100 [2025-03-04 10:56:51,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:51,468 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1812 transitions. [2025-03-04 10:56:51,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.0) internal successors, (182), 8 states have internal predecessors, (182), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:56:51,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1812 transitions. [2025-03-04 10:56:51,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-04 10:56:51,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:51,469 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:51,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:51,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:51,670 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:51,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1109975922, now seen corresponding path program 1 times [2025-03-04 10:56:51,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:51,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128480676] [2025-03-04 10:56:51,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:51,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:51,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 10:56:51,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 10:56:51,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:51,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:51,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128480676] [2025-03-04 10:56:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128480676] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:51,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121535280] [2025-03-04 10:56:51,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:51,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:51,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:51,735 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 10:56:51,736 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 10:56:51,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-04 10:56:51,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-04 10:56:51,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:51,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:51,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:56:51,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:51,906 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:51,906 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:52,005 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:56:52,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121535280] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:52,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:52,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-03-04 10:56:52,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388965030] [2025-03-04 10:56:52,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:52,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:56:52,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:52,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:56:52,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:56:52,007 INFO L87 Difference]: Start difference. First operand 1336 states and 1812 transitions. Second operand has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 8 states have internal predecessors, (188), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:56:52,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:52,421 INFO L93 Difference]: Finished difference Result 1877 states and 2596 transitions. [2025-03-04 10:56:52,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:56:52,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 8 states have internal predecessors, (188), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 102 [2025-03-04 10:56:52,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:52,427 INFO L225 Difference]: With dead ends: 1877 [2025-03-04 10:56:52,427 INFO L226 Difference]: Without dead ends: 1875 [2025-03-04 10:56:52,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:56:52,428 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 282 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:52,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 367 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:56:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1875 states. [2025-03-04 10:56:52,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1875 to 1507. [2025-03-04 10:56:52,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1324 states have (on average 1.3444108761329305) internal successors, (1780), 1365 states have internal predecessors, (1780), 141 states have call successors, (141), 6 states have call predecessors, (141), 6 states have return successors, (141), 135 states have call predecessors, (141), 141 states have call successors, (141) [2025-03-04 10:56:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2062 transitions. [2025-03-04 10:56:52,511 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2062 transitions. Word has length 102 [2025-03-04 10:56:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:52,511 INFO L471 AbstractCegarLoop]: Abstraction has 1507 states and 2062 transitions. [2025-03-04 10:56:52,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 26.857142857142858) internal successors, (188), 8 states have internal predecessors, (188), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:56:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2062 transitions. [2025-03-04 10:56:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-04 10:56:52,512 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:52,512 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:56:52,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:52,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:52,716 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:52,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:52,716 INFO L85 PathProgramCache]: Analyzing trace with hash -949653706, now seen corresponding path program 1 times [2025-03-04 10:56:52,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:52,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781849493] [2025-03-04 10:56:52,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:52,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:52,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-04 10:56:52,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 10:56:52,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:52,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:52,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1660711123] [2025-03-04 10:56:52,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:52,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:52,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:52,727 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 10:56:52,736 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 10:56:52,754 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-04 10:56:52,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 10:56:52,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:52,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:52,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-04 10:56:52,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:53,137 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-04 10:56:53,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:53,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781849493] [2025-03-04 10:56:53,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:53,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660711123] [2025-03-04 10:56:53,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660711123] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:53,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:53,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-04 10:56:53,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853702759] [2025-03-04 10:56:53,238 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:53,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 10:56:53,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:53,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 10:56:53,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2025-03-04 10:56:53,239 INFO L87 Difference]: Start difference. First operand 1507 states and 2062 transitions. Second operand has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-04 10:56:54,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:54,247 INFO L93 Difference]: Finished difference Result 1730 states and 2378 transitions. [2025-03-04 10:56:54,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 10:56:54,247 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 108 [2025-03-04 10:56:54,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:54,251 INFO L225 Difference]: With dead ends: 1730 [2025-03-04 10:56:54,251 INFO L226 Difference]: Without dead ends: 1728 [2025-03-04 10:56:54,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2025-03-04 10:56:54,252 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 433 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 2123 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 2123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:54,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 517 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 2123 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 10:56:54,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2025-03-04 10:56:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1655. [2025-03-04 10:56:54,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1457 states have (on average 1.3445435827041867) internal successors, (1959), 1498 states have internal predecessors, (1959), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-04 10:56:54,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2271 transitions. [2025-03-04 10:56:54,335 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2271 transitions. Word has length 108 [2025-03-04 10:56:54,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:54,335 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2271 transitions. [2025-03-04 10:56:54,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-04 10:56:54,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2271 transitions. [2025-03-04 10:56:54,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-04 10:56:54,336 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:54,336 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:56:54,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-04 10:56:54,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:54,536 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:54,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:54,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1028434904, now seen corresponding path program 2 times [2025-03-04 10:56:54,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:54,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170955799] [2025-03-04 10:56:54,537 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:56:54,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:54,540 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-04 10:56:54,547 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 10:56:54,547 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:56:54,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:54,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [972888128] [2025-03-04 10:56:54,548 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:56:54,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:54,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:54,550 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:56:54,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-04 10:56:54,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-03-04 10:56:54,588 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 108 of 108 statements. [2025-03-04 10:56:54,588 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:56:54,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:54,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-04 10:56:54,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:54,988 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-03-04 10:56:54,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:55,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:55,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170955799] [2025-03-04 10:56:55,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:55,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972888128] [2025-03-04 10:56:55,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972888128] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:55,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:55,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2025-03-04 10:56:55,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556055024] [2025-03-04 10:56:55,085 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:55,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 10:56:55,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:55,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 10:56:55,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2025-03-04 10:56:55,086 INFO L87 Difference]: Start difference. First operand 1655 states and 2271 transitions. Second operand has 15 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-04 10:56:55,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:55,980 INFO L93 Difference]: Finished difference Result 1735 states and 2370 transitions. [2025-03-04 10:56:55,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 10:56:55,980 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) Word has length 108 [2025-03-04 10:56:55,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:55,983 INFO L225 Difference]: With dead ends: 1735 [2025-03-04 10:56:55,984 INFO L226 Difference]: Without dead ends: 1731 [2025-03-04 10:56:55,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=630, Unknown=0, NotChecked=0, Total=812 [2025-03-04 10:56:55,984 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 439 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:55,985 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 663 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 10:56:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2025-03-04 10:56:56,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1654. [2025-03-04 10:56:56,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1456 states have (on average 1.3440934065934067) internal successors, (1957), 1497 states have internal predecessors, (1957), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-04 10:56:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2269 transitions. [2025-03-04 10:56:56,066 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2269 transitions. Word has length 108 [2025-03-04 10:56:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:56,067 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2269 transitions. [2025-03-04 10:56:56,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-04 10:56:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2269 transitions. [2025-03-04 10:56:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 10:56:56,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:56,067 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:56:56,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2025-03-04 10:56:56,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-03-04 10:56:56,268 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:56,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1135555788, now seen corresponding path program 1 times [2025-03-04 10:56:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112621687] [2025-03-04 10:56:56,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:56,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 10:56:56,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:56:56,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:56,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 10:56:56,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112621687] [2025-03-04 10:56:56,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112621687] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836930058] [2025-03-04 10:56:56,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:56,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:56,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:56,328 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:56:56,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-03-04 10:56:56,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 10:56:56,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:56:56,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:56,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:56,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:56:56,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 10:56:56,400 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 10:56:56,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836930058] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:56:56,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:56:56,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-04 10:56:56,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724210849] [2025-03-04 10:56:56,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:56,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 10:56:56,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:56,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 10:56:56,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:56:56,480 INFO L87 Difference]: Start difference. First operand 1654 states and 2269 transitions. Second operand has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-04 10:56:57,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:56:57,359 INFO L93 Difference]: Finished difference Result 1677 states and 2294 transitions. [2025-03-04 10:56:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 10:56:57,360 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 110 [2025-03-04 10:56:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:56:57,363 INFO L225 Difference]: With dead ends: 1677 [2025-03-04 10:56:57,363 INFO L226 Difference]: Without dead ends: 1676 [2025-03-04 10:56:57,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:56:57,363 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 147 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 10:56:57,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 157 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 10:56:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2025-03-04 10:56:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1654. [2025-03-04 10:56:57,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1456 states have (on average 1.3337912087912087) internal successors, (1942), 1497 states have internal predecessors, (1942), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-04 10:56:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2254 transitions. [2025-03-04 10:56:57,445 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2254 transitions. Word has length 110 [2025-03-04 10:56:57,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:56:57,445 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2254 transitions. [2025-03-04 10:56:57,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 6 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2025-03-04 10:56:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2254 transitions. [2025-03-04 10:56:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-04 10:56:57,446 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:56:57,446 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:56:57,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2025-03-04 10:56:57,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-03-04 10:56:57,646 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:56:57,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:56:57,647 INFO L85 PathProgramCache]: Analyzing trace with hash 625506278, now seen corresponding path program 1 times [2025-03-04 10:56:57,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:56:57,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812844810] [2025-03-04 10:56:57,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:57,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:56:57,651 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-04 10:56:57,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-04 10:56:57,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:57,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:56:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068347633] [2025-03-04 10:56:57,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:56:57,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:56:57,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:56:57,658 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:56:57,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-03-04 10:56:57,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-04 10:56:57,706 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-04 10:56:57,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:56:57,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:56:57,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-04 10:56:57,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:56:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-03-04 10:56:58,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:56:59,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:56:59,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812844810] [2025-03-04 10:56:59,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:56:59,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068347633] [2025-03-04 10:56:59,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068347633] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:56:59,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:56:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-04 10:56:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795485747] [2025-03-04 10:56:59,560 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:56:59,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 10:56:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:56:59,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 10:56:59,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=189, Unknown=1, NotChecked=0, Total=272 [2025-03-04 10:56:59,561 INFO L87 Difference]: Start difference. First operand 1654 states and 2254 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-04 10:57:00,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:00,117 INFO L93 Difference]: Finished difference Result 1691 states and 2290 transitions. [2025-03-04 10:57:00,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-04 10:57:00,117 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 109 [2025-03-04 10:57:00,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:00,120 INFO L225 Difference]: With dead ends: 1691 [2025-03-04 10:57:00,120 INFO L226 Difference]: Without dead ends: 1689 [2025-03-04 10:57:00,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=196, Invalid=403, Unknown=1, NotChecked=0, Total=600 [2025-03-04 10:57:00,121 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 410 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:00,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 319 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:57:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2025-03-04 10:57:00,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1654. [2025-03-04 10:57:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1456 states have (on average 1.3324175824175823) internal successors, (1940), 1497 states have internal predecessors, (1940), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-04 10:57:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2252 transitions. [2025-03-04 10:57:00,211 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2252 transitions. Word has length 109 [2025-03-04 10:57:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:00,211 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2252 transitions. [2025-03-04 10:57:00,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-04 10:57:00,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2252 transitions. [2025-03-04 10:57:00,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-04 10:57:00,212 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:00,212 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:00,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:00,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-03-04 10:57:00,412 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:00,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1816711044, now seen corresponding path program 2 times [2025-03-04 10:57:00,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:00,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417669762] [2025-03-04 10:57:00,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:00,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:00,416 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-03-04 10:57:00,424 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 109 of 109 statements. [2025-03-04 10:57:00,424 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:00,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:00,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486697276] [2025-03-04 10:57:00,425 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:00,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:00,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:00,427 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:00,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-03-04 10:57:00,449 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-03-04 10:57:00,467 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 109 of 109 statements. [2025-03-04 10:57:00,467 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:00,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:00,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-04 10:57:00,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 9 proven. 45 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-03-04 10:57:00,664 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:00,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:00,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417669762] [2025-03-04 10:57:00,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:00,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486697276] [2025-03-04 10:57:00,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486697276] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:00,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:00,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:57:00,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928502769] [2025-03-04 10:57:00,807 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:00,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:57:00,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:00,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:57:00,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:57:00,807 INFO L87 Difference]: Start difference. First operand 1654 states and 2252 transitions. Second operand has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-04 10:57:01,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:01,297 INFO L93 Difference]: Finished difference Result 1691 states and 2288 transitions. [2025-03-04 10:57:01,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:57:01,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 109 [2025-03-04 10:57:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:01,300 INFO L225 Difference]: With dead ends: 1691 [2025-03-04 10:57:01,300 INFO L226 Difference]: Without dead ends: 1689 [2025-03-04 10:57:01,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:57:01,300 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 166 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:01,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 342 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:57:01,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2025-03-04 10:57:01,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1654. [2025-03-04 10:57:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1654 states, 1456 states have (on average 1.331043956043956) internal successors, (1938), 1497 states have internal predecessors, (1938), 156 states have call successors, (156), 6 states have call predecessors, (156), 6 states have return successors, (156), 150 states have call predecessors, (156), 156 states have call successors, (156) [2025-03-04 10:57:01,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2250 transitions. [2025-03-04 10:57:01,385 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2250 transitions. Word has length 109 [2025-03-04 10:57:01,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:01,385 INFO L471 AbstractCegarLoop]: Abstraction has 1654 states and 2250 transitions. [2025-03-04 10:57:01,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.142857142857142) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2025-03-04 10:57:01,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2250 transitions. [2025-03-04 10:57:01,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-04 10:57:01,386 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:01,386 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:01,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:01,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2025-03-04 10:57:01,587 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:01,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash 842491068, now seen corresponding path program 1 times [2025-03-04 10:57:01,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:01,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113613087] [2025-03-04 10:57:01,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:01,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:01,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-04 10:57:01,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 10:57:01,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:01,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:01,642 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 10:57:01,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113613087] [2025-03-04 10:57:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113613087] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:57:01,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:57:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 10:57:01,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176984641] [2025-03-04 10:57:01,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:57:01,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:57:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:01,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:57:01,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:57:01,643 INFO L87 Difference]: Start difference. First operand 1654 states and 2250 transitions. Second operand has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-04 10:57:02,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:02,304 INFO L93 Difference]: Finished difference Result 1720 states and 2320 transitions. [2025-03-04 10:57:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:57:02,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 111 [2025-03-04 10:57:02,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:02,307 INFO L225 Difference]: With dead ends: 1720 [2025-03-04 10:57:02,307 INFO L226 Difference]: Without dead ends: 1719 [2025-03-04 10:57:02,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:57:02,308 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 244 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:02,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 231 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 10:57:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2025-03-04 10:57:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1621. [2025-03-04 10:57:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1621 states, 1426 states have (on average 1.3302945301542777) internal successors, (1897), 1467 states have internal predecessors, (1897), 153 states have call successors, (153), 6 states have call predecessors, (153), 6 states have return successors, (153), 147 states have call predecessors, (153), 153 states have call successors, (153) [2025-03-04 10:57:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1621 states to 1621 states and 2203 transitions. [2025-03-04 10:57:02,405 INFO L78 Accepts]: Start accepts. Automaton has 1621 states and 2203 transitions. Word has length 111 [2025-03-04 10:57:02,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:02,406 INFO L471 AbstractCegarLoop]: Abstraction has 1621 states and 2203 transitions. [2025-03-04 10:57:02,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.4) internal successors, (72), 6 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-04 10:57:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1621 states and 2203 transitions. [2025-03-04 10:57:02,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-04 10:57:02,406 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:02,406 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:02,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2025-03-04 10:57:02,406 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:02,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:02,407 INFO L85 PathProgramCache]: Analyzing trace with hash -2084141772, now seen corresponding path program 1 times [2025-03-04 10:57:02,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:02,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709600657] [2025-03-04 10:57:02,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:02,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:02,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 10:57:02,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:57:02,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:02,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:02,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1674403077] [2025-03-04 10:57:02,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:02,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:02,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:02,416 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:02,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-03-04 10:57:02,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-04 10:57:02,451 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-04 10:57:02,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:02,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:02,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 10:57:02,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:57:02,683 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:02,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:02,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709600657] [2025-03-04 10:57:02,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:02,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674403077] [2025-03-04 10:57:02,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674403077] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:02,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:02,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2025-03-04 10:57:02,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53472611] [2025-03-04 10:57:02,725 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:02,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:57:02,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:02,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:57:02,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:57:02,725 INFO L87 Difference]: Start difference. First operand 1621 states and 2203 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 10:57:03,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:03,342 INFO L93 Difference]: Finished difference Result 1753 states and 2357 transitions. [2025-03-04 10:57:03,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:57:03,342 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 110 [2025-03-04 10:57:03,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:03,345 INFO L225 Difference]: With dead ends: 1753 [2025-03-04 10:57:03,345 INFO L226 Difference]: Without dead ends: 1749 [2025-03-04 10:57:03,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:57:03,346 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 204 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:03,346 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 367 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 10:57:03,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2025-03-04 10:57:03,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1445. [2025-03-04 10:57:03,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1272 states have (on average 1.2869496855345912) internal successors, (1637), 1309 states have internal predecessors, (1637), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:03,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1907 transitions. [2025-03-04 10:57:03,428 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1907 transitions. Word has length 110 [2025-03-04 10:57:03,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:03,428 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1907 transitions. [2025-03-04 10:57:03,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 10:57:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1907 transitions. [2025-03-04 10:57:03,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-04 10:57:03,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:03,429 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:03,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:03,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:03,630 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:03,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:03,630 INFO L85 PathProgramCache]: Analyzing trace with hash -183885404, now seen corresponding path program 1 times [2025-03-04 10:57:03,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:03,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920743201] [2025-03-04 10:57:03,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:03,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:03,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-04 10:57:03,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 10:57:03,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:03,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:03,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381121505] [2025-03-04 10:57:03,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:03,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:03,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:03,642 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:03,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2025-03-04 10:57:03,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-04 10:57:03,682 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 10:57:03,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:03,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:03,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 10:57:03,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:57:03,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:04,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:04,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920743201] [2025-03-04 10:57:04,033 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:04,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381121505] [2025-03-04 10:57:04,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381121505] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:04,033 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:04,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2025-03-04 10:57:04,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026187770] [2025-03-04 10:57:04,033 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:04,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:57:04,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:04,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:57:04,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:57:04,034 INFO L87 Difference]: Start difference. First operand 1445 states and 1907 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 10:57:04,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:04,346 INFO L93 Difference]: Finished difference Result 1485 states and 1950 transitions. [2025-03-04 10:57:04,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:57:04,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 111 [2025-03-04 10:57:04,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:04,349 INFO L225 Difference]: With dead ends: 1485 [2025-03-04 10:57:04,349 INFO L226 Difference]: Without dead ends: 1483 [2025-03-04 10:57:04,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:57:04,349 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 88 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:04,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 243 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:57:04,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2025-03-04 10:57:04,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1445. [2025-03-04 10:57:04,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1272 states have (on average 1.2853773584905661) internal successors, (1635), 1309 states have internal predecessors, (1635), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:04,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1905 transitions. [2025-03-04 10:57:04,426 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1905 transitions. Word has length 111 [2025-03-04 10:57:04,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:04,427 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1905 transitions. [2025-03-04 10:57:04,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-04 10:57:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1905 transitions. [2025-03-04 10:57:04,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-04 10:57:04,427 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:04,427 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:04,434 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2025-03-04 10:57:04,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-03-04 10:57:04,628 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:04,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:04,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2102593986, now seen corresponding path program 2 times [2025-03-04 10:57:04,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:04,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510179420] [2025-03-04 10:57:04,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:04,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:04,632 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-03-04 10:57:04,640 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 10:57:04,640 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:04,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:04,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003716536] [2025-03-04 10:57:04,641 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:04,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:04,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:04,643 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:04,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2025-03-04 10:57:04,666 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 111 statements into 2 equivalence classes. [2025-03-04 10:57:04,683 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-03-04 10:57:04,683 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:04,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:04,684 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-04 10:57:04,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:04,936 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:57:04,937 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:57:05,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:05,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510179420] [2025-03-04 10:57:05,321 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:05,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003716536] [2025-03-04 10:57:05,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003716536] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:05,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:57:05,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2025-03-04 10:57:05,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268425347] [2025-03-04 10:57:05,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:05,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 10:57:05,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:05,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 10:57:05,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:57:05,322 INFO L87 Difference]: Start difference. First operand 1445 states and 1905 transitions. Second operand has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2025-03-04 10:57:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:07,590 INFO L93 Difference]: Finished difference Result 1540 states and 2009 transitions. [2025-03-04 10:57:07,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:57:07,591 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 111 [2025-03-04 10:57:07,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:07,593 INFO L225 Difference]: With dead ends: 1540 [2025-03-04 10:57:07,593 INFO L226 Difference]: Without dead ends: 1538 [2025-03-04 10:57:07,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:57:07,595 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 469 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:07,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 466 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-04 10:57:07,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2025-03-04 10:57:07,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1453. [2025-03-04 10:57:07,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 1280 states have (on average 1.28046875) internal successors, (1639), 1317 states have internal predecessors, (1639), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1909 transitions. [2025-03-04 10:57:07,677 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1909 transitions. Word has length 111 [2025-03-04 10:57:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:07,677 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 1909 transitions. [2025-03-04 10:57:07,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.25) internal successors, (146), 9 states have internal predecessors, (146), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2025-03-04 10:57:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1909 transitions. [2025-03-04 10:57:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-04 10:57:07,678 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:07,678 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:07,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:07,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:07,878 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:07,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1405480142, now seen corresponding path program 1 times [2025-03-04 10:57:07,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:07,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104882012] [2025-03-04 10:57:07,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:07,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 10:57:07,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 10:57:07,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:07,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:07,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065421784] [2025-03-04 10:57:07,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:07,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:07,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:07,890 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:07,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2025-03-04 10:57:07,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-04 10:57:07,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-04 10:57:07,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:07,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:07,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 10:57:07,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:57:08,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-04 10:57:08,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104882012] [2025-03-04 10:57:08,350 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:08,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065421784] [2025-03-04 10:57:08,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065421784] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:08,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:08,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-04 10:57:08,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478090463] [2025-03-04 10:57:08,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:57:08,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:57:08,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:08,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:57:08,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:57:08,351 INFO L87 Difference]: Start difference. First operand 1453 states and 1909 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:57:08,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:08,866 INFO L93 Difference]: Finished difference Result 1453 states and 1909 transitions. [2025-03-04 10:57:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:57:08,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2025-03-04 10:57:08,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:08,869 INFO L225 Difference]: With dead ends: 1453 [2025-03-04 10:57:08,869 INFO L226 Difference]: Without dead ends: 1452 [2025-03-04 10:57:08,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:57:08,869 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 93 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:08,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 133 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:57:08,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1452 states. [2025-03-04 10:57:08,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1452 to 1452. [2025-03-04 10:57:08,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1452 states, 1280 states have (on average 1.2640625) internal successors, (1618), 1316 states have internal predecessors, (1618), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:08,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1888 transitions. [2025-03-04 10:57:08,954 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1888 transitions. Word has length 112 [2025-03-04 10:57:08,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:08,954 INFO L471 AbstractCegarLoop]: Abstraction has 1452 states and 1888 transitions. [2025-03-04 10:57:08,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:57:08,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1888 transitions. [2025-03-04 10:57:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-04 10:57:08,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:08,955 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:08,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:09,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2025-03-04 10:57:09,156 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:09,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash -620211358, now seen corresponding path program 1 times [2025-03-04 10:57:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:09,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61303902] [2025-03-04 10:57:09,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:09,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-04 10:57:09,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-04 10:57:09,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:09,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:09,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931446715] [2025-03-04 10:57:09,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:09,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:09,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:09,169 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:09,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2025-03-04 10:57:09,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-04 10:57:09,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-04 10:57:09,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:09,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:09,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 10:57:09,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-04 10:57:09,532 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:09,816 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2025-03-04 10:57:09,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:09,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61303902] [2025-03-04 10:57:09,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:09,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931446715] [2025-03-04 10:57:09,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931446715] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:09,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:09,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-04 10:57:09,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570067989] [2025-03-04 10:57:09,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:57:09,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:57:09,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:09,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:57:09,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:57:09,817 INFO L87 Difference]: Start difference. First operand 1452 states and 1888 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:57:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:10,901 INFO L93 Difference]: Finished difference Result 1452 states and 1888 transitions. [2025-03-04 10:57:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:57:10,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 113 [2025-03-04 10:57:10,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:10,903 INFO L225 Difference]: With dead ends: 1452 [2025-03-04 10:57:10,903 INFO L226 Difference]: Without dead ends: 1449 [2025-03-04 10:57:10,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 215 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-04 10:57:10,904 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 93 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:10,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 133 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-03-04 10:57:10,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2025-03-04 10:57:10,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1449. [2025-03-04 10:57:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1280 states have (on average 1.23203125) internal successors, (1577), 1313 states have internal predecessors, (1577), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1847 transitions. [2025-03-04 10:57:10,990 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1847 transitions. Word has length 113 [2025-03-04 10:57:10,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:10,991 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1847 transitions. [2025-03-04 10:57:10,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-04 10:57:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1847 transitions. [2025-03-04 10:57:10,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-04 10:57:10,991 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:10,991 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:10,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:11,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:11,193 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:11,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:11,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1806382559, now seen corresponding path program 2 times [2025-03-04 10:57:11,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:11,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779432841] [2025-03-04 10:57:11,193 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:11,197 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-04 10:57:11,208 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 119 of 119 statements. [2025-03-04 10:57:11,208 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:11,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:11,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654013720] [2025-03-04 10:57:11,208 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:11,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:11,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:11,211 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:11,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2025-03-04 10:57:11,237 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 119 statements into 2 equivalence classes. [2025-03-04 10:57:11,257 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 119 of 119 statements. [2025-03-04 10:57:11,257 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:11,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:11,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 10:57:11,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:11,550 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-03-04 10:57:11,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:11,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:11,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779432841] [2025-03-04 10:57:11,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:11,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654013720] [2025-03-04 10:57:11,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654013720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:11,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:11,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 10:57:11,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243500904] [2025-03-04 10:57:11,610 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:11,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 10:57:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:11,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 10:57:11,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:57:11,611 INFO L87 Difference]: Start difference. First operand 1449 states and 1847 transitions. Second operand has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-04 10:57:11,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:11,989 INFO L93 Difference]: Finished difference Result 1925 states and 2446 transitions. [2025-03-04 10:57:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 10:57:11,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) Word has length 119 [2025-03-04 10:57:11,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:11,992 INFO L225 Difference]: With dead ends: 1925 [2025-03-04 10:57:11,992 INFO L226 Difference]: Without dead ends: 1923 [2025-03-04 10:57:11,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:57:11,992 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 309 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:11,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 463 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:57:11,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2025-03-04 10:57:12,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1449. [2025-03-04 10:57:12,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1280 states have (on average 1.23046875) internal successors, (1575), 1313 states have internal predecessors, (1575), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1845 transitions. [2025-03-04 10:57:12,082 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1845 transitions. Word has length 119 [2025-03-04 10:57:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:12,082 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1845 transitions. [2025-03-04 10:57:12,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 11.857142857142858) internal successors, (83), 8 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 5 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-04 10:57:12,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1845 transitions. [2025-03-04 10:57:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-04 10:57:12,083 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:12,083 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:12,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:12,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:12,284 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:12,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:12,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1778401235, now seen corresponding path program 1 times [2025-03-04 10:57:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:12,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464821925] [2025-03-04 10:57:12,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:12,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:12,287 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-04 10:57:12,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-04 10:57:12,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:12,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:12,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32667845] [2025-03-04 10:57:12,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:12,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:12,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:12,295 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:12,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2025-03-04 10:57:12,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-04 10:57:12,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-04 10:57:12,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:12,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:12,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:57:12,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:12,762 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-04 10:57:12,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:12,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:12,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464821925] [2025-03-04 10:57:12,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:12,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32667845] [2025-03-04 10:57:12,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32667845] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:12,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:12,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 10:57:12,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396173359] [2025-03-04 10:57:12,950 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:12,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 10:57:12,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:12,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 10:57:12,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:57:12,951 INFO L87 Difference]: Start difference. First operand 1449 states and 1845 transitions. Second operand has 9 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-04 10:57:13,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:13,487 INFO L93 Difference]: Finished difference Result 1590 states and 2020 transitions. [2025-03-04 10:57:13,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:57:13,488 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 122 [2025-03-04 10:57:13,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:13,493 INFO L225 Difference]: With dead ends: 1590 [2025-03-04 10:57:13,494 INFO L226 Difference]: Without dead ends: 1589 [2025-03-04 10:57:13,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:57:13,494 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 172 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:13,494 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 477 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:57:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2025-03-04 10:57:13,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1449. [2025-03-04 10:57:13,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1280 states have (on average 1.2296875) internal successors, (1574), 1313 states have internal predecessors, (1574), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 129 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:13,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 1844 transitions. [2025-03-04 10:57:13,585 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 1844 transitions. Word has length 122 [2025-03-04 10:57:13,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:13,585 INFO L471 AbstractCegarLoop]: Abstraction has 1449 states and 1844 transitions. [2025-03-04 10:57:13,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.375) internal successors, (83), 9 states have internal predecessors, (83), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2025-03-04 10:57:13,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 1844 transitions. [2025-03-04 10:57:13,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-04 10:57:13,586 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:13,586 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:13,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2025-03-04 10:57:13,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2025-03-04 10:57:13,787 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:13,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:13,787 INFO L85 PathProgramCache]: Analyzing trace with hash 2079285729, now seen corresponding path program 2 times [2025-03-04 10:57:13,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:13,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880714431] [2025-03-04 10:57:13,787 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:13,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:13,791 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 130 statements into 2 equivalence classes. [2025-03-04 10:57:13,797 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-03-04 10:57:13,797 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:13,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:13,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1524042289] [2025-03-04 10:57:13,798 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:57:13,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:13,800 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:13,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2025-03-04 10:57:13,821 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 130 statements into 2 equivalence classes. [2025-03-04 10:57:13,837 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 130 of 130 statements. [2025-03-04 10:57:13,837 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:57:13,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:13,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 10:57:13,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2025-03-04 10:57:14,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:14,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:14,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880714431] [2025-03-04 10:57:14,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:14,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524042289] [2025-03-04 10:57:14,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524042289] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:14,202 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:14,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 10:57:14,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646356101] [2025-03-04 10:57:14,202 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:14,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 10:57:14,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:14,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 10:57:14,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:57:14,203 INFO L87 Difference]: Start difference. First operand 1449 states and 1844 transitions. Second operand has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-04 10:57:14,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:14,536 INFO L93 Difference]: Finished difference Result 1913 states and 2433 transitions. [2025-03-04 10:57:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 10:57:14,537 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 130 [2025-03-04 10:57:14,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:14,540 INFO L225 Difference]: With dead ends: 1913 [2025-03-04 10:57:14,540 INFO L226 Difference]: Without dead ends: 1911 [2025-03-04 10:57:14,540 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:57:14,540 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 397 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:14,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 403 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:57:14,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1911 states. [2025-03-04 10:57:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1911 to 1482. [2025-03-04 10:57:14,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1310 states have (on average 1.2305343511450382) internal successors, (1612), 1343 states have internal predecessors, (1612), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 132 states have call predecessors, (138), 138 states have call successors, (138) [2025-03-04 10:57:14,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1888 transitions. [2025-03-04 10:57:14,634 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1888 transitions. Word has length 130 [2025-03-04 10:57:14,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:14,635 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1888 transitions. [2025-03-04 10:57:14,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.714285714285714) internal successors, (89), 8 states have internal predecessors, (89), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2025-03-04 10:57:14,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1888 transitions. [2025-03-04 10:57:14,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-04 10:57:14,635 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:14,635 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:14,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:14,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2025-03-04 10:57:14,836 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:14,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1247309664, now seen corresponding path program 1 times [2025-03-04 10:57:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:14,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937905925] [2025-03-04 10:57:14,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:14,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:14,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 10:57:14,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 10:57:14,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:14,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:14,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9948541] [2025-03-04 10:57:14,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:14,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:14,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:14,850 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:14,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2025-03-04 10:57:14,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-04 10:57:14,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-04 10:57:14,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:14,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:14,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 10:57:14,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-03-04 10:57:15,307 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:16,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:16,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937905925] [2025-03-04 10:57:16,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:16,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9948541] [2025-03-04 10:57:16,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9948541] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:16,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:16,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2025-03-04 10:57:16,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30823213] [2025-03-04 10:57:16,356 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:16,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 10:57:16,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:16,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 10:57:16,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:57:16,357 INFO L87 Difference]: Start difference. First operand 1482 states and 1888 transitions. Second operand has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-04 10:57:16,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:16,836 INFO L93 Difference]: Finished difference Result 1615 states and 2053 transitions. [2025-03-04 10:57:16,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 10:57:16,836 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 133 [2025-03-04 10:57:16,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:16,838 INFO L225 Difference]: With dead ends: 1615 [2025-03-04 10:57:16,839 INFO L226 Difference]: Without dead ends: 1614 [2025-03-04 10:57:16,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:57:16,839 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 189 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:16,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 419 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:57:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2025-03-04 10:57:16,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1482. [2025-03-04 10:57:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1310 states have (on average 1.2297709923664122) internal successors, (1611), 1343 states have internal predecessors, (1611), 138 states have call successors, (138), 6 states have call predecessors, (138), 6 states have return successors, (138), 132 states have call predecessors, (138), 138 states have call successors, (138) [2025-03-04 10:57:16,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1887 transitions. [2025-03-04 10:57:16,937 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1887 transitions. Word has length 133 [2025-03-04 10:57:16,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:16,937 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1887 transitions. [2025-03-04 10:57:16,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.88888888888889) internal successors, (89), 10 states have internal predecessors, (89), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-04 10:57:16,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1887 transitions. [2025-03-04 10:57:16,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-04 10:57:16,939 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:16,939 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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 10:57:16,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2025-03-04 10:57:17,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2025-03-04 10:57:17,140 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:17,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:17,140 INFO L85 PathProgramCache]: Analyzing trace with hash -11893860, now seen corresponding path program 1 times [2025-03-04 10:57:17,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:17,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840047796] [2025-03-04 10:57:17,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:17,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-04 10:57:17,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 10:57:17,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:17,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:17,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [583260006] [2025-03-04 10:57:17,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:17,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:17,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:17,154 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:17,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2025-03-04 10:57:17,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-04 10:57:17,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-04 10:57:17,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:17,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:17,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-04 10:57:17,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 21 proven. 73 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2025-03-04 10:57:17,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:17,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840047796] [2025-03-04 10:57:17,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:17,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583260006] [2025-03-04 10:57:17,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583260006] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:17,782 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:17,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-04 10:57:17,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089939576] [2025-03-04 10:57:17,782 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:17,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:57:17,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:17,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:57:17,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:57:17,783 INFO L87 Difference]: Start difference. First operand 1482 states and 1887 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-04 10:57:18,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:18,661 INFO L93 Difference]: Finished difference Result 1622 states and 2062 transitions. [2025-03-04 10:57:18,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 10:57:18,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 134 [2025-03-04 10:57:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:18,664 INFO L225 Difference]: With dead ends: 1622 [2025-03-04 10:57:18,664 INFO L226 Difference]: Without dead ends: 1618 [2025-03-04 10:57:18,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2025-03-04 10:57:18,664 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 173 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:18,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 539 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-04 10:57:18,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2025-03-04 10:57:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 1458. [2025-03-04 10:57:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1289 states have (on average 1.229635376260667) internal successors, (1585), 1321 states have internal predecessors, (1585), 135 states have call successors, (135), 6 states have call predecessors, (135), 6 states have return successors, (135), 130 states have call predecessors, (135), 135 states have call successors, (135) [2025-03-04 10:57:18,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1855 transitions. [2025-03-04 10:57:18,767 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1855 transitions. Word has length 134 [2025-03-04 10:57:18,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:18,767 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1855 transitions. [2025-03-04 10:57:18,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 12 states have internal predecessors, (93), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-04 10:57:18,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1855 transitions. [2025-03-04 10:57:18,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-04 10:57:18,768 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:18,768 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:18,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:18,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2025-03-04 10:57:18,969 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:18,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1848810802, now seen corresponding path program 1 times [2025-03-04 10:57:18,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:18,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907526844] [2025-03-04 10:57:18,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:18,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:18,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-04 10:57:18,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-04 10:57:18,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:18,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:19,047 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 31 proven. 18 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2025-03-04 10:57:19,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:19,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907526844] [2025-03-04 10:57:19,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907526844] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:19,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403121470] [2025-03-04 10:57:19,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:19,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:19,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:19,049 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:19,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2025-03-04 10:57:19,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-04 10:57:19,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-04 10:57:19,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:19,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:19,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:57:19,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:19,368 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2025-03-04 10:57:19,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:57:19,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403121470] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:57:19,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:19,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-04 10:57:19,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770438829] [2025-03-04 10:57:19,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:57:19,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:57:19,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:19,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:57:19,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:57:19,369 INFO L87 Difference]: Start difference. First operand 1458 states and 1855 transitions. Second operand has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-04 10:57:19,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:19,599 INFO L93 Difference]: Finished difference Result 1531 states and 1938 transitions. [2025-03-04 10:57:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:57:19,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 136 [2025-03-04 10:57:19,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:19,603 INFO L225 Difference]: With dead ends: 1531 [2025-03-04 10:57:19,603 INFO L226 Difference]: Without dead ends: 1530 [2025-03-04 10:57:19,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:57:19,604 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:19,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 124 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:57:19,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2025-03-04 10:57:19,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1529. [2025-03-04 10:57:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 1350 states have (on average 1.2192592592592593) internal successors, (1646), 1385 states have internal predecessors, (1646), 145 states have call successors, (145), 6 states have call predecessors, (145), 6 states have return successors, (145), 137 states have call predecessors, (145), 145 states have call successors, (145) [2025-03-04 10:57:19,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 1936 transitions. [2025-03-04 10:57:19,720 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 1936 transitions. Word has length 136 [2025-03-04 10:57:19,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:19,721 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 1936 transitions. [2025-03-04 10:57:19,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.5) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-04 10:57:19,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 1936 transitions. [2025-03-04 10:57:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-04 10:57:19,721 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:19,722 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:19,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:19,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2025-03-04 10:57:19,922 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:19,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:19,923 INFO L85 PathProgramCache]: Analyzing trace with hash -153824049, now seen corresponding path program 1 times [2025-03-04 10:57:19,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:19,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665341617] [2025-03-04 10:57:19,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:19,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:19,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-04 10:57:19,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-04 10:57:19,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:19,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-04 10:57:19,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:19,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665341617] [2025-03-04 10:57:19,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665341617] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:19,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793566222] [2025-03-04 10:57:19,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:19,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:19,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:19,987 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:19,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2025-03-04 10:57:20,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-04 10:57:20,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-04 10:57:20,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:20,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:20,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:57:20,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-04 10:57:20,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:20,128 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2025-03-04 10:57:20,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793566222] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:20,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:57:20,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2025-03-04 10:57:20,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865279915] [2025-03-04 10:57:20,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:20,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:57:20,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:20,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:57:20,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:57:20,129 INFO L87 Difference]: Start difference. First operand 1529 states and 1936 transitions. Second operand has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-04 10:57:20,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:20,464 INFO L93 Difference]: Finished difference Result 1547 states and 1954 transitions. [2025-03-04 10:57:20,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:57:20,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 136 [2025-03-04 10:57:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:20,467 INFO L225 Difference]: With dead ends: 1547 [2025-03-04 10:57:20,467 INFO L226 Difference]: Without dead ends: 1393 [2025-03-04 10:57:20,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:57:20,468 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 69 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:20,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 100 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:57:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2025-03-04 10:57:20,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1375. [2025-03-04 10:57:20,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1217 states have (on average 1.2300739523418243) internal successors, (1497), 1246 states have internal predecessors, (1497), 124 states have call successors, (124), 6 states have call predecessors, (124), 6 states have return successors, (124), 122 states have call predecessors, (124), 124 states have call successors, (124) [2025-03-04 10:57:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1745 transitions. [2025-03-04 10:57:20,562 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1745 transitions. Word has length 136 [2025-03-04 10:57:20,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:20,563 INFO L471 AbstractCegarLoop]: Abstraction has 1375 states and 1745 transitions. [2025-03-04 10:57:20,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.0) internal successors, (96), 7 states have internal predecessors, (96), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-03-04 10:57:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1745 transitions. [2025-03-04 10:57:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-03-04 10:57:20,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:20,564 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:20,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:20,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2025-03-04 10:57:20,764 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:20,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:20,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2055388889, now seen corresponding path program 1 times [2025-03-04 10:57:20,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:20,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053608328] [2025-03-04 10:57:20,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:20,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:20,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-04 10:57:20,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-04 10:57:20,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:20,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:20,832 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:20,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:20,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053608328] [2025-03-04 10:57:20,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053608328] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:20,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817637919] [2025-03-04 10:57:20,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:20,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:20,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:20,835 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:20,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2025-03-04 10:57:20,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-03-04 10:57:20,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-03-04 10:57:20,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:20,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:20,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:57:20,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:21,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:21,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817637919] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:21,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:57:21,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2025-03-04 10:57:21,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146371855] [2025-03-04 10:57:21,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:21,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 10:57:21,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:21,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 10:57:21,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2025-03-04 10:57:21,265 INFO L87 Difference]: Start difference. First operand 1375 states and 1745 transitions. Second operand has 15 states, 14 states have (on average 19.357142857142858) internal successors, (271), 15 states have internal predecessors, (271), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) [2025-03-04 10:57:22,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:22,282 INFO L93 Difference]: Finished difference Result 1943 states and 2433 transitions. [2025-03-04 10:57:22,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2025-03-04 10:57:22,282 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 19.357142857142858) internal successors, (271), 15 states have internal predecessors, (271), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) Word has length 144 [2025-03-04 10:57:22,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:22,284 INFO L225 Difference]: With dead ends: 1943 [2025-03-04 10:57:22,284 INFO L226 Difference]: Without dead ends: 1941 [2025-03-04 10:57:22,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=477, Invalid=1329, Unknown=0, NotChecked=0, Total=1806 [2025-03-04 10:57:22,285 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 1318 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:22,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 1006 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 10:57:22,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2025-03-04 10:57:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1619. [2025-03-04 10:57:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1440 states have (on average 1.2395833333333333) internal successors, (1785), 1469 states have internal predecessors, (1785), 145 states have call successors, (145), 6 states have call predecessors, (145), 6 states have return successors, (145), 143 states have call predecessors, (145), 145 states have call successors, (145) [2025-03-04 10:57:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2075 transitions. [2025-03-04 10:57:22,390 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2075 transitions. Word has length 144 [2025-03-04 10:57:22,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:22,390 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2075 transitions. [2025-03-04 10:57:22,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 19.357142857142858) internal successors, (271), 15 states have internal predecessors, (271), 12 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 12 states have call predecessors, (33), 12 states have call successors, (33) [2025-03-04 10:57:22,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2075 transitions. [2025-03-04 10:57:22,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-03-04 10:57:22,391 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:22,391 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:22,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:22,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:22,592 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:22,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash -475879898, now seen corresponding path program 1 times [2025-03-04 10:57:22,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:22,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535109538] [2025-03-04 10:57:22,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:22,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:22,596 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-04 10:57:22,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-04 10:57:22,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:22,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:22,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:22,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535109538] [2025-03-04 10:57:22,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535109538] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:22,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219981720] [2025-03-04 10:57:22,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:22,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:22,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:22,659 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:22,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2025-03-04 10:57:22,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-03-04 10:57:22,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-03-04 10:57:22,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:22,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:22,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:57:22,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:22,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:23,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219981720] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:23,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:57:23,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 10:57:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331053758] [2025-03-04 10:57:23,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:23,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 10:57:23,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:23,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 10:57:23,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:57:23,008 INFO L87 Difference]: Start difference. First operand 1619 states and 2075 transitions. Second operand has 11 states, 10 states have (on average 27.5) internal successors, (275), 11 states have internal predecessors, (275), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-04 10:57:23,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:23,614 INFO L93 Difference]: Finished difference Result 2607 states and 3373 transitions. [2025-03-04 10:57:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:57:23,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 27.5) internal successors, (275), 11 states have internal predecessors, (275), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 146 [2025-03-04 10:57:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:23,617 INFO L225 Difference]: With dead ends: 2607 [2025-03-04 10:57:23,617 INFO L226 Difference]: Without dead ends: 2605 [2025-03-04 10:57:23,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=103, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:57:23,618 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 404 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:23,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 544 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:57:23,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2025-03-04 10:57:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2064. [2025-03-04 10:57:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2064 states, 1846 states have (on average 1.248104008667389) internal successors, (2304), 1875 states have internal predecessors, (2304), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2025-03-04 10:57:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2672 transitions. [2025-03-04 10:57:23,758 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2672 transitions. Word has length 146 [2025-03-04 10:57:23,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:23,759 INFO L471 AbstractCegarLoop]: Abstraction has 2064 states and 2672 transitions. [2025-03-04 10:57:23,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 27.5) internal successors, (275), 11 states have internal predecessors, (275), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-04 10:57:23,759 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2672 transitions. [2025-03-04 10:57:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-03-04 10:57:23,759 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:23,760 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:23,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2025-03-04 10:57:23,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:23,960 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:23,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:23,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1974558660, now seen corresponding path program 1 times [2025-03-04 10:57:23,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:23,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445485181] [2025-03-04 10:57:23,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:23,964 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-04 10:57:23,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 10:57:23,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:23,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:24,034 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:24,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:24,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445485181] [2025-03-04 10:57:24,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445485181] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:24,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263183177] [2025-03-04 10:57:24,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:57:24,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:24,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:24,036 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:24,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2025-03-04 10:57:24,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-03-04 10:57:24,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-03-04 10:57:24,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:57:24,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:24,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:57:24,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:24,254 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:24,370 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:24,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263183177] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:24,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:57:24,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 10:57:24,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381036843] [2025-03-04 10:57:24,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:24,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-04 10:57:24,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:24,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-04 10:57:24,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:57:24,371 INFO L87 Difference]: Start difference. First operand 2064 states and 2672 transitions. Second operand has 11 states, 10 states have (on average 28.1) internal successors, (281), 11 states have internal predecessors, (281), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-04 10:57:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:25,012 INFO L93 Difference]: Finished difference Result 2999 states and 3884 transitions. [2025-03-04 10:57:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:57:25,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 28.1) internal successors, (281), 11 states have internal predecessors, (281), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) Word has length 148 [2025-03-04 10:57:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:25,016 INFO L225 Difference]: With dead ends: 2999 [2025-03-04 10:57:25,016 INFO L226 Difference]: Without dead ends: 2997 [2025-03-04 10:57:25,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:57:25,016 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 377 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:25,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 601 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:57:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2025-03-04 10:57:25,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2411. [2025-03-04 10:57:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2166 states have (on average 1.2442289935364728) internal successors, (2695), 2195 states have internal predecessors, (2695), 211 states have call successors, (211), 6 states have call predecessors, (211), 6 states have return successors, (211), 209 states have call predecessors, (211), 211 states have call successors, (211) [2025-03-04 10:57:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3117 transitions. [2025-03-04 10:57:25,177 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3117 transitions. Word has length 148 [2025-03-04 10:57:25,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:25,177 INFO L471 AbstractCegarLoop]: Abstraction has 2411 states and 3117 transitions. [2025-03-04 10:57:25,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 28.1) internal successors, (281), 11 states have internal predecessors, (281), 10 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 10 states have call predecessors, (29), 10 states have call successors, (29) [2025-03-04 10:57:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3117 transitions. [2025-03-04 10:57:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-04 10:57:25,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:25,181 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:25,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2025-03-04 10:57:25,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:25,381 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:25,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1357970174, now seen corresponding path program 3 times [2025-03-04 10:57:25,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:25,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245883830] [2025-03-04 10:57:25,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:57:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:25,386 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 154 statements into 6 equivalence classes. [2025-03-04 10:57:25,394 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:25,394 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-04 10:57:25,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:25,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [610567918] [2025-03-04 10:57:25,394 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:57:25,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:25,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:25,397 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:25,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2025-03-04 10:57:25,420 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 154 statements into 6 equivalence classes. [2025-03-04 10:57:25,442 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 121 of 154 statements. [2025-03-04 10:57:25,442 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-04 10:57:25,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:25,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-04 10:57:25,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:25,826 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:25,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:26,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245883830] [2025-03-04 10:57:26,420 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:26,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610567918] [2025-03-04 10:57:26,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610567918] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:26,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:57:26,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2025-03-04 10:57:26,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061553926] [2025-03-04 10:57:26,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:26,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 10:57:26,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:26,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 10:57:26,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:57:26,422 INFO L87 Difference]: Start difference. First operand 2411 states and 3117 transitions. Second operand has 13 states, 12 states have (on average 16.833333333333332) internal successors, (202), 13 states have internal predecessors, (202), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:57:30,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:30,313 INFO L93 Difference]: Finished difference Result 2545 states and 3275 transitions. [2025-03-04 10:57:30,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 10:57:30,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 16.833333333333332) internal successors, (202), 13 states have internal predecessors, (202), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 154 [2025-03-04 10:57:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:30,316 INFO L225 Difference]: With dead ends: 2545 [2025-03-04 10:57:30,316 INFO L226 Difference]: Without dead ends: 2543 [2025-03-04 10:57:30,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2025-03-04 10:57:30,316 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 379 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:30,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 749 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-03-04 10:57:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2025-03-04 10:57:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2471. [2025-03-04 10:57:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2222 states have (on average 1.2403240324032403) internal successors, (2756), 2252 states have internal predecessors, (2756), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-04 10:57:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3186 transitions. [2025-03-04 10:57:30,488 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3186 transitions. Word has length 154 [2025-03-04 10:57:30,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:30,489 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3186 transitions. [2025-03-04 10:57:30,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 16.833333333333332) internal successors, (202), 13 states have internal predecessors, (202), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:57:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3186 transitions. [2025-03-04 10:57:30,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-04 10:57:30,489 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:30,489 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:30,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:30,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:30,690 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:30,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:30,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1745792356, now seen corresponding path program 4 times [2025-03-04 10:57:30,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:30,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428927384] [2025-03-04 10:57:30,690 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:57:30,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:30,694 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 154 statements into 2 equivalence classes. [2025-03-04 10:57:30,701 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:30,701 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:57:30,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:30,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113591475] [2025-03-04 10:57:30,702 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:57:30,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:30,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:30,704 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:30,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2025-03-04 10:57:30,728 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 154 statements into 2 equivalence classes. [2025-03-04 10:57:30,770 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:30,770 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:57:30,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:30,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-03-04 10:57:30,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 24 proven. 105 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-03-04 10:57:31,705 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:31,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428927384] [2025-03-04 10:57:31,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:31,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113591475] [2025-03-04 10:57:31,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113591475] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:31,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:31,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-03-04 10:57:31,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481282981] [2025-03-04 10:57:31,970 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:31,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 10:57:31,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:31,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 10:57:31,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2025-03-04 10:57:31,970 INFO L87 Difference]: Start difference. First operand 2471 states and 3186 transitions. Second operand has 14 states, 13 states have (on average 8.307692307692308) internal successors, (108), 14 states have internal predecessors, (108), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:57:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:33,347 INFO L93 Difference]: Finished difference Result 2497 states and 3213 transitions. [2025-03-04 10:57:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-04 10:57:33,348 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.307692307692308) internal successors, (108), 14 states have internal predecessors, (108), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 154 [2025-03-04 10:57:33,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:33,350 INFO L225 Difference]: With dead ends: 2497 [2025-03-04 10:57:33,350 INFO L226 Difference]: Without dead ends: 2496 [2025-03-04 10:57:33,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2025-03-04 10:57:33,351 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 62 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:33,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 721 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-04 10:57:33,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2025-03-04 10:57:33,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2471. [2025-03-04 10:57:33,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2222 states have (on average 1.2398739873987399) internal successors, (2755), 2252 states have internal predecessors, (2755), 215 states have call successors, (215), 6 states have call predecessors, (215), 6 states have return successors, (215), 212 states have call predecessors, (215), 215 states have call successors, (215) [2025-03-04 10:57:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 3185 transitions. [2025-03-04 10:57:33,517 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 3185 transitions. Word has length 154 [2025-03-04 10:57:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:33,517 INFO L471 AbstractCegarLoop]: Abstraction has 2471 states and 3185 transitions. [2025-03-04 10:57:33,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.307692307692308) internal successors, (108), 14 states have internal predecessors, (108), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:57:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 3185 transitions. [2025-03-04 10:57:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-04 10:57:33,517 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:33,517 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:33,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2025-03-04 10:57:33,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2025-03-04 10:57:33,718 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:33,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:33,718 INFO L85 PathProgramCache]: Analyzing trace with hash -908344386, now seen corresponding path program 5 times [2025-03-04 10:57:33,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:33,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833807625] [2025-03-04 10:57:33,718 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:57:33,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:33,722 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 154 statements into 6 equivalence classes. [2025-03-04 10:57:33,729 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:33,729 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-04 10:57:33,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:33,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [459854866] [2025-03-04 10:57:33,730 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:57:33,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:33,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:33,732 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:33,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2025-03-04 10:57:33,757 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 154 statements into 6 equivalence classes. [2025-03-04 10:57:33,792 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:33,793 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-04 10:57:33,793 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:33,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 10:57:33,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:34,106 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:34,566 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:34,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:34,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833807625] [2025-03-04 10:57:34,566 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:34,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459854866] [2025-03-04 10:57:34,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459854866] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:57:34,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:57:34,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2025-03-04 10:57:34,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545693727] [2025-03-04 10:57:34,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:34,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:57:34,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:34,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:57:34,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:57:34,567 INFO L87 Difference]: Start difference. First operand 2471 states and 3185 transitions. Second operand has 12 states, 11 states have (on average 18.363636363636363) internal successors, (202), 12 states have internal predecessors, (202), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:57:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:38,074 INFO L93 Difference]: Finished difference Result 2613 states and 3353 transitions. [2025-03-04 10:57:38,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-04 10:57:38,074 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 18.363636363636363) internal successors, (202), 12 states have internal predecessors, (202), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 154 [2025-03-04 10:57:38,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:38,077 INFO L225 Difference]: With dead ends: 2613 [2025-03-04 10:57:38,077 INFO L226 Difference]: Without dead ends: 2589 [2025-03-04 10:57:38,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2025-03-04 10:57:38,078 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 477 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:38,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 677 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-03-04 10:57:38,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2025-03-04 10:57:38,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2518. [2025-03-04 10:57:38,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2265 states have (on average 1.2388520971302428) internal successors, (2806), 2294 states have internal predecessors, (2806), 219 states have call successors, (219), 6 states have call predecessors, (219), 6 states have return successors, (219), 217 states have call predecessors, (219), 219 states have call successors, (219) [2025-03-04 10:57:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3244 transitions. [2025-03-04 10:57:38,284 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3244 transitions. Word has length 154 [2025-03-04 10:57:38,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:38,284 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 3244 transitions. [2025-03-04 10:57:38,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 18.363636363636363) internal successors, (202), 12 states have internal predecessors, (202), 7 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-04 10:57:38,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3244 transitions. [2025-03-04 10:57:38,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-03-04 10:57:38,284 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:38,285 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:38,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2025-03-04 10:57:38,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2025-03-04 10:57:38,485 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:38,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:38,486 INFO L85 PathProgramCache]: Analyzing trace with hash -815116609, now seen corresponding path program 6 times [2025-03-04 10:57:38,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:38,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115099116] [2025-03-04 10:57:38,486 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 10:57:38,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:38,490 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 154 statements into 6 equivalence classes. [2025-03-04 10:57:38,500 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:38,500 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-03-04 10:57:38,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:38,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693509975] [2025-03-04 10:57:38,501 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 10:57:38,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:38,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:38,503 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:38,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2025-03-04 10:57:38,524 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 154 statements into 6 equivalence classes. [2025-03-04 10:57:38,624 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) and asserted 154 of 154 statements. [2025-03-04 10:57:38,624 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2025-03-04 10:57:38,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:38,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-04 10:57:38,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:38,996 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:38,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:40,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115099116] [2025-03-04 10:57:40,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:40,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693509975] [2025-03-04 10:57:40,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693509975] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:40,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:40,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-04 10:57:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122251832] [2025-03-04 10:57:40,597 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:40,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:57:40,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:40,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:57:40,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2025-03-04 10:57:40,598 INFO L87 Difference]: Start difference. First operand 2518 states and 3244 transitions. Second operand has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:57:41,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:41,092 INFO L93 Difference]: Finished difference Result 2548 states and 3276 transitions. [2025-03-04 10:57:41,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:57:41,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 154 [2025-03-04 10:57:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:41,095 INFO L225 Difference]: With dead ends: 2548 [2025-03-04 10:57:41,095 INFO L226 Difference]: Without dead ends: 2547 [2025-03-04 10:57:41,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=26, Invalid=45, Unknown=1, NotChecked=0, Total=72 [2025-03-04 10:57:41,096 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 71 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:41,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 391 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:57:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2025-03-04 10:57:41,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2518. [2025-03-04 10:57:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2265 states have (on average 1.2384105960264902) internal successors, (2805), 2294 states have internal predecessors, (2805), 219 states have call successors, (219), 6 states have call predecessors, (219), 6 states have return successors, (219), 217 states have call predecessors, (219), 219 states have call successors, (219) [2025-03-04 10:57:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3243 transitions. [2025-03-04 10:57:41,307 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3243 transitions. Word has length 154 [2025-03-04 10:57:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:41,307 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 3243 transitions. [2025-03-04 10:57:41,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 7 states have internal predecessors, (105), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:57:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3243 transitions. [2025-03-04 10:57:41,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 10:57:41,308 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:41,308 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:41,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2025-03-04 10:57:41,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:41,508 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:41,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash -660717892, now seen corresponding path program 3 times [2025-03-04 10:57:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:41,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419615641] [2025-03-04 10:57:41,509 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:57:41,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:41,512 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 6 equivalence classes. [2025-03-04 10:57:41,519 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 10:57:41,519 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-04 10:57:41,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:41,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961982807] [2025-03-04 10:57:41,520 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:57:41,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:41,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:41,522 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:41,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2025-03-04 10:57:41,543 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 156 statements into 6 equivalence classes. [2025-03-04 10:57:41,568 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 123 of 156 statements. [2025-03-04 10:57:41,568 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-04 10:57:41,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:41,569 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:57:41,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:57:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 87 proven. 24 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2025-03-04 10:57:41,892 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:57:54,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:57:54,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419615641] [2025-03-04 10:57:54,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:57:54,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961982807] [2025-03-04 10:57:54,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961982807] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:57:54,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:57:54,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:57:54,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269357277] [2025-03-04 10:57:54,236 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:57:54,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:57:54,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:57:54,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:57:54,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=84, Unknown=3, NotChecked=0, Total=132 [2025-03-04 10:57:54,236 INFO L87 Difference]: Start difference. First operand 2518 states and 3243 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:57:55,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:57:55,066 INFO L93 Difference]: Finished difference Result 2596 states and 3336 transitions. [2025-03-04 10:57:55,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:57:55,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 156 [2025-03-04 10:57:55,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:57:55,069 INFO L225 Difference]: With dead ends: 2596 [2025-03-04 10:57:55,069 INFO L226 Difference]: Without dead ends: 2595 [2025-03-04 10:57:55,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=52, Invalid=101, Unknown=3, NotChecked=0, Total=156 [2025-03-04 10:57:55,069 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 167 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 10:57:55,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 567 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 10:57:55,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2025-03-04 10:57:55,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2518. [2025-03-04 10:57:55,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2518 states, 2265 states have (on average 1.2375275938189845) internal successors, (2803), 2294 states have internal predecessors, (2803), 219 states have call successors, (219), 6 states have call predecessors, (219), 6 states have return successors, (219), 217 states have call predecessors, (219), 219 states have call successors, (219) [2025-03-04 10:57:55,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3241 transitions. [2025-03-04 10:57:55,237 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3241 transitions. Word has length 156 [2025-03-04 10:57:55,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:57:55,237 INFO L471 AbstractCegarLoop]: Abstraction has 2518 states and 3241 transitions. [2025-03-04 10:57:55,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-04 10:57:55,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3241 transitions. [2025-03-04 10:57:55,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-04 10:57:55,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:57:55,238 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:57:55,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2025-03-04 10:57:55,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:55,439 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2025-03-04 10:57:55,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:57:55,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1023341979, now seen corresponding path program 4 times [2025-03-04 10:57:55,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:57:55,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549284521] [2025-03-04 10:57:55,439 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:57:55,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:57:55,443 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 156 statements into 2 equivalence classes. [2025-03-04 10:57:55,449 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 10:57:55,449 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:57:55,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:57:55,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347049531] [2025-03-04 10:57:55,450 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:57:55,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:57:55,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:57:55,452 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:57:55,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2025-03-04 10:57:55,479 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 156 statements into 2 equivalence classes. [2025-03-04 10:57:55,502 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 156 of 156 statements. [2025-03-04 10:57:55,502 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:57:55,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:57:55,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 10:57:55,505 INFO L279 TraceCheckSpWp]: Computing forward predicates...