./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7004d2b01bb7d5c4b1956f589017b61646e33c2f2be997467596b458e0de6322 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:59:40,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:59:41,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 10:59:41,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:59:41,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:59:41,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:59:41,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:59:41,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:59:41,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:59:41,049 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:59:41,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:59:41,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:59:41,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:59:41,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:59:41,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:59:41,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:59:41,052 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:59:41,052 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:59:41,053 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:59:41,053 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:59:41,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:59:41,054 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 -> 7004d2b01bb7d5c4b1956f589017b61646e33c2f2be997467596b458e0de6322 [2025-03-04 10:59:41,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:59:41,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:59:41,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:59:41,284 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:59:41,285 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:59:41,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound20.c [2025-03-04 10:59:42,432 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5db35bee1/a5cba19115494b4dada552ad7bc46b47/FLAG3e269494f [2025-03-04 10:59:42,648 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:59:42,649 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound20.c [2025-03-04 10:59:42,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5db35bee1/a5cba19115494b4dada552ad7bc46b47/FLAG3e269494f [2025-03-04 10:59:42,990 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5db35bee1/a5cba19115494b4dada552ad7bc46b47 [2025-03-04 10:59:42,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:59:42,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:59:42,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:59:42,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:59:42,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:59:43,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:59:42" (1/1) ... [2025-03-04 10:59:43,002 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54316e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43, skipping insertion in model container [2025-03-04 10:59:43,002 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:59:42" (1/1) ... [2025-03-04 10:59:43,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:59:43,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:59:43,144 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:59:43,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:59:43,176 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:59:43,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43 WrapperNode [2025-03-04 10:59:43,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:59:43,178 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:59:43,178 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:59:43,178 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:59:43,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,204 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 153 [2025-03-04 10:59:43,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:59:43,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:59:43,207 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:59:43,207 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:59:43,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,214 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,217 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,231 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 10:59:43,231 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,238 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:59:43,246 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:59:43,246 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:59:43,246 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:59:43,247 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (1/1) ... [2025-03-04 10:59:43,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:59:43,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:43,275 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 10:59:43,282 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 10:59:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 10:59:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 10:59:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 10:59:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 10:59:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:59:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:59:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-04 10:59:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-04 10:59:43,336 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:59:43,337 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:59:43,694 INFO L? ?]: Removed 138 outVars from TransFormulas that were not future-live. [2025-03-04 10:59:43,695 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:59:43,706 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:59:43,707 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:59:43,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:59:43 BoogieIcfgContainer [2025-03-04 10:59:43,708 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:59:43,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:59:43,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:59:43,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:59:43,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:59:42" (1/3) ... [2025-03-04 10:59:43,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a9c7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:59:43, skipping insertion in model container [2025-03-04 10:59:43,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:59:43" (2/3) ... [2025-03-04 10:59:43,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a9c7b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:59:43, skipping insertion in model container [2025-03-04 10:59:43,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:59:43" (3/3) ... [2025-03-04 10:59:43,715 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound20.c [2025-03-04 10:59:43,726 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:59:43,727 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd3-ll_unwindbound20.c that has 3 procedures, 146 locations, 1 initial locations, 3 loop locations, and 56 error locations. [2025-03-04 10:59:43,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:59:43,773 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;@1a59137a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:59:43,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2025-03-04 10:59:43,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 80 states have (on average 1.8375) internal successors, (147), 136 states have internal predecessors, (147), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-04 10:59:43,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 10:59:43,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:43,780 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:43,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:43,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1198495666, now seen corresponding path program 1 times [2025-03-04 10:59:43,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:43,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638965227] [2025-03-04 10:59:43,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:43,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:43,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 10:59:43,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 10:59:43,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:43,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:43,891 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 10:59:43,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:43,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638965227] [2025-03-04 10:59:43,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638965227] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:43,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993690752] [2025-03-04 10:59:43,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:43,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:43,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:43,895 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 10:59:43,897 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 10:59:43,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 10:59:43,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 10:59:43,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:43,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:43,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 10:59:43,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:43,945 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 10:59:43,946 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:43,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993690752] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:43,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:43,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-04 10:59:43,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752939239] [2025-03-04 10:59:43,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:43,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 10:59:43,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:43,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 10:59:43,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 10:59:43,963 INFO L87 Difference]: Start difference. First operand has 146 states, 80 states have (on average 1.8375) internal successors, (147), 136 states have internal predecessors, (147), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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 10:59:43,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:43,987 INFO L93 Difference]: Finished difference Result 288 states and 324 transitions. [2025-03-04 10:59:43,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 10:59:43,988 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 10:59:43,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:43,994 INFO L225 Difference]: With dead ends: 288 [2025-03-04 10:59:43,994 INFO L226 Difference]: Without dead ends: 139 [2025-03-04 10:59:43,997 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 10:59:43,999 INFO L435 NwaCegarLoop]: 155 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, 155 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 10:59:44,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-03-04 10:59:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2025-03-04 10:59:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 75 states have (on average 1.8133333333333332) internal successors, (136), 130 states have internal predecessors, (136), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 10:59:44,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2025-03-04 10:59:44,038 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 15 [2025-03-04 10:59:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:44,038 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2025-03-04 10:59:44,038 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 10:59:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2025-03-04 10:59:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-04 10:59:44,039 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:44,039 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:44,046 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 10:59:44,242 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 10:59:44,243 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:44,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:44,243 INFO L85 PathProgramCache]: Analyzing trace with hash -569826542, now seen corresponding path program 1 times [2025-03-04 10:59:44,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:44,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927262804] [2025-03-04 10:59:44,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:44,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:44,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 10:59:44,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 10:59:44,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:44,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:44,312 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 10:59:44,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:44,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927262804] [2025-03-04 10:59:44,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927262804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:44,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:44,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:44,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013241936] [2025-03-04 10:59:44,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:44,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:44,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:44,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:44,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:44,314 INFO L87 Difference]: Start difference. First operand 139 states and 148 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 10:59:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:44,361 INFO L93 Difference]: Finished difference Result 179 states and 189 transitions. [2025-03-04 10:59:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:44,362 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 10:59:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:44,363 INFO L225 Difference]: With dead ends: 179 [2025-03-04 10:59:44,363 INFO L226 Difference]: Without dead ends: 178 [2025-03-04 10:59:44,364 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 10:59:44,364 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 45 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:44,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 412 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2025-03-04 10:59:44,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 141. [2025-03-04 10:59:44,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 132 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 10:59:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 150 transitions. [2025-03-04 10:59:44,373 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 150 transitions. Word has length 15 [2025-03-04 10:59:44,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:44,374 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 150 transitions. [2025-03-04 10:59:44,374 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 10:59:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 150 transitions. [2025-03-04 10:59:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-04 10:59:44,375 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:44,375 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:44,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 10:59:44,375 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:44,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:44,376 INFO L85 PathProgramCache]: Analyzing trace with hash -484753511, now seen corresponding path program 1 times [2025-03-04 10:59:44,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:44,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737059498] [2025-03-04 10:59:44,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:44,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:44,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 10:59:44,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 10:59:44,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:44,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:44,439 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 10:59:44,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:44,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737059498] [2025-03-04 10:59:44,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737059498] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:44,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:44,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:44,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931857593] [2025-03-04 10:59:44,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:44,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:44,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:44,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:44,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:44,441 INFO L87 Difference]: Start difference. First operand 141 states and 150 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:59:44,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:44,481 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2025-03-04 10:59:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:59:44,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2025-03-04 10:59:44,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:44,484 INFO L225 Difference]: With dead ends: 172 [2025-03-04 10:59:44,484 INFO L226 Difference]: Without dead ends: 143 [2025-03-04 10:59:44,485 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 10:59:44,485 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 8 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:44,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 415 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:44,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2025-03-04 10:59:44,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2025-03-04 10:59:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 134 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 10:59:44,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2025-03-04 10:59:44,499 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 16 [2025-03-04 10:59:44,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:44,499 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2025-03-04 10:59:44,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:59:44,500 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2025-03-04 10:59:44,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-03-04 10:59:44,500 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:44,500 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:44,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:59:44,501 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:44,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:44,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1611692982, now seen corresponding path program 1 times [2025-03-04 10:59:44,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708216421] [2025-03-04 10:59:44,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:44,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-04 10:59:44,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-04 10:59:44,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:44,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:44,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:44,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:44,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708216421] [2025-03-04 10:59:44,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708216421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:44,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:44,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-04 10:59:44,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305938245] [2025-03-04 10:59:44,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:44,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:59:44,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:44,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:59:44,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:59:44,619 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:59:44,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:44,840 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2025-03-04 10:59:44,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:59:44,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2025-03-04 10:59:44,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:44,842 INFO L225 Difference]: With dead ends: 241 [2025-03-04 10:59:44,842 INFO L226 Difference]: Without dead ends: 213 [2025-03-04 10:59:44,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-04 10:59:44,843 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 253 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:44,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 391 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:59:44,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2025-03-04 10:59:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 144. [2025-03-04 10:59:44,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 80 states have (on average 1.7625) internal successors, (141), 135 states have internal predecessors, (141), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 10:59:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 153 transitions. [2025-03-04 10:59:44,852 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 153 transitions. Word has length 19 [2025-03-04 10:59:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:44,852 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 153 transitions. [2025-03-04 10:59:44,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:59:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 153 transitions. [2025-03-04 10:59:44,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-04 10:59:44,852 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:44,853 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 10:59:44,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:59:44,853 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:44,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1577130198, now seen corresponding path program 1 times [2025-03-04 10:59:44,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:44,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028371242] [2025-03-04 10:59:44,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:44,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:44,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 10:59:44,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 10:59:44,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:44,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:44,924 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 10:59:44,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:44,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028371242] [2025-03-04 10:59:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028371242] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:44,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:44,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 10:59:44,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238217749] [2025-03-04 10:59:44,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:44,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:59:44,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:44,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:59:44,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:59:44,926 INFO L87 Difference]: Start difference. First operand 144 states and 153 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 10:59:44,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:44,998 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2025-03-04 10:59:44,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 10:59:44,999 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 10:59:44,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:45,000 INFO L225 Difference]: With dead ends: 208 [2025-03-04 10:59:45,000 INFO L226 Difference]: Without dead ends: 206 [2025-03-04 10:59:45,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:59:45,002 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 128 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:45,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 538 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:45,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-03-04 10:59:45,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 163. [2025-03-04 10:59:45,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7575757575757576) internal successors, (174), 154 states have internal predecessors, (174), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 10:59:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 186 transitions. [2025-03-04 10:59:45,015 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 186 transitions. Word has length 20 [2025-03-04 10:59:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:45,016 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 186 transitions. [2025-03-04 10:59:45,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 10:59:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 186 transitions. [2025-03-04 10:59:45,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-04 10:59:45,016 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:45,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:45,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 10:59:45,016 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:45,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:45,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1646395977, now seen corresponding path program 1 times [2025-03-04 10:59:45,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:45,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201240105] [2025-03-04 10:59:45,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:45,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:45,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-04 10:59:45,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-04 10:59:45,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:45,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:45,069 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 10:59:45,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:45,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201240105] [2025-03-04 10:59:45,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201240105] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:45,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:45,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 10:59:45,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85144450] [2025-03-04 10:59:45,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:45,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:59:45,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:45,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:59:45,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:59:45,071 INFO L87 Difference]: Start difference. First operand 163 states and 186 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 10:59:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:45,125 INFO L93 Difference]: Finished difference Result 316 states and 363 transitions. [2025-03-04 10:59:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:59:45,125 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 21 [2025-03-04 10:59:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:45,126 INFO L225 Difference]: With dead ends: 316 [2025-03-04 10:59:45,126 INFO L226 Difference]: Without dead ends: 167 [2025-03-04 10:59:45,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:59:45,128 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 11 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:45,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 672 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:45,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2025-03-04 10:59:45,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2025-03-04 10:59:45,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 158 states have internal predecessors, (178), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-04 10:59:45,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 190 transitions. [2025-03-04 10:59:45,134 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 190 transitions. Word has length 21 [2025-03-04 10:59:45,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:45,135 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 190 transitions. [2025-03-04 10:59:45,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 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 10:59:45,135 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 190 transitions. [2025-03-04 10:59:45,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 10:59:45,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:45,135 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] [2025-03-04 10:59:45,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 10:59:45,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:45,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:45,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1585360796, now seen corresponding path program 1 times [2025-03-04 10:59:45,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:45,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577807366] [2025-03-04 10:59:45,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:45,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:45,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 10:59:45,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 10:59:45,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:45,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:45,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149055953] [2025-03-04 10:59:45,148 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:45,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:45,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:45,150 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 10:59:45,152 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 10:59:45,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 10:59:45,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 10:59:45,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:45,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:45,186 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:59:45,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:45,204 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 10:59:45,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:45,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:45,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577807366] [2025-03-04 10:59:45,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:45,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149055953] [2025-03-04 10:59:45,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149055953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:45,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:45,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:59:45,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409519401] [2025-03-04 10:59:45,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:45,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:59:45,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:45,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:59:45,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:59:45,206 INFO L87 Difference]: Start difference. First operand 167 states and 190 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 10:59:45,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:45,263 INFO L93 Difference]: Finished difference Result 252 states and 292 transitions. [2025-03-04 10:59:45,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:59:45,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 25 [2025-03-04 10:59:45,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:45,265 INFO L225 Difference]: With dead ends: 252 [2025-03-04 10:59:45,265 INFO L226 Difference]: Without dead ends: 248 [2025-03-04 10:59:45,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 10:59:45,265 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 68 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:45,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 249 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:45,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2025-03-04 10:59:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 216. [2025-03-04 10:59:45,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 148 states have (on average 1.7432432432432432) internal successors, (258), 203 states have internal predecessors, (258), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:59:45,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 278 transitions. [2025-03-04 10:59:45,273 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 278 transitions. Word has length 25 [2025-03-04 10:59:45,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:45,273 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 278 transitions. [2025-03-04 10:59:45,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 10:59:45,273 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 278 transitions. [2025-03-04 10:59:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-04 10:59:45,273 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:45,273 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] [2025-03-04 10:59:45,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 10:59:45,474 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,SelfDestructingSolverStorable6 [2025-03-04 10:59:45,474 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:45,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:45,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1585356666, now seen corresponding path program 1 times [2025-03-04 10:59:45,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:45,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345726574] [2025-03-04 10:59:45,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:45,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:45,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 10:59:45,481 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 10:59:45,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:45,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:45,557 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 10:59:45,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:45,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345726574] [2025-03-04 10:59:45,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345726574] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:45,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:45,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 10:59:45,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372693806] [2025-03-04 10:59:45,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:45,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:59:45,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:45,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:59:45,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:59:45,559 INFO L87 Difference]: Start difference. First operand 216 states and 278 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 10:59:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:45,660 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2025-03-04 10:59:45,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 10:59:45,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 25 [2025-03-04 10:59:45,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:45,662 INFO L225 Difference]: With dead ends: 220 [2025-03-04 10:59:45,662 INFO L226 Difference]: Without dead ends: 217 [2025-03-04 10:59:45,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:59:45,662 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 350 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:45,663 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 539 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:45,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2025-03-04 10:59:45,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 190. [2025-03-04 10:59:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 125 states have (on average 1.72) internal successors, (215), 177 states have internal predecessors, (215), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:59:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 235 transitions. [2025-03-04 10:59:45,669 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 235 transitions. Word has length 25 [2025-03-04 10:59:45,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:45,669 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 235 transitions. [2025-03-04 10:59:45,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 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 10:59:45,669 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 235 transitions. [2025-03-04 10:59:45,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-04 10:59:45,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:45,669 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] [2025-03-04 10:59:45,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 10:59:45,670 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:45,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:45,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1901416307, now seen corresponding path program 1 times [2025-03-04 10:59:45,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:45,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778938912] [2025-03-04 10:59:45,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:45,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:45,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-04 10:59:45,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-04 10:59:45,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:45,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:45,727 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 10:59:45,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:45,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778938912] [2025-03-04 10:59:45,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778938912] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:45,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:45,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 10:59:45,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290590936] [2025-03-04 10:59:45,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:45,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:59:45,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:45,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:59:45,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:59:45,729 INFO L87 Difference]: Start difference. First operand 190 states and 235 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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 10:59:45,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:45,809 INFO L93 Difference]: Finished difference Result 386 states and 478 transitions. [2025-03-04 10:59:45,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 10:59:45,810 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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 26 [2025-03-04 10:59:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:45,811 INFO L225 Difference]: With dead ends: 386 [2025-03-04 10:59:45,811 INFO L226 Difference]: Without dead ends: 214 [2025-03-04 10:59:45,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:59:45,812 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 38 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:45,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 778 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:45,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2025-03-04 10:59:45,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2025-03-04 10:59:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.7) internal successors, (221), 182 states have internal predecessors, (221), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:59:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2025-03-04 10:59:45,819 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 26 [2025-03-04 10:59:45,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:45,819 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2025-03-04 10:59:45,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 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 10:59:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2025-03-04 10:59:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 10:59:45,819 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:45,819 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] [2025-03-04 10:59:45,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 10:59:45,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:45,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1181665570, now seen corresponding path program 1 times [2025-03-04 10:59:45,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:45,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360184336] [2025-03-04 10:59:45,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:45,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:45,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 10:59:45,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 10:59:45,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:45,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:45,883 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 10:59:45,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:45,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360184336] [2025-03-04 10:59:45,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360184336] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:45,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:45,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:59:45,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401651239] [2025-03-04 10:59:45,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:45,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:59:45,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:45,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:59:45,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:59:45,884 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 10:59:46,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:46,273 INFO L93 Difference]: Finished difference Result 222 states and 245 transitions. [2025-03-04 10:59:46,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:59:46,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 27 [2025-03-04 10:59:46,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:46,274 INFO L225 Difference]: With dead ends: 222 [2025-03-04 10:59:46,274 INFO L226 Difference]: Without dead ends: 221 [2025-03-04 10:59:46,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:59:46,275 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 62 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:46,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 490 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:59:46,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2025-03-04 10:59:46,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 196. [2025-03-04 10:59:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 183 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:59:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 242 transitions. [2025-03-04 10:59:46,291 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 242 transitions. Word has length 27 [2025-03-04 10:59:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:46,291 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 242 transitions. [2025-03-04 10:59:46,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 10:59:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 242 transitions. [2025-03-04 10:59:46,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 10:59:46,292 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:46,292 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] [2025-03-04 10:59:46,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 10:59:46,292 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:46,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:46,293 INFO L85 PathProgramCache]: Analyzing trace with hash -2023072984, now seen corresponding path program 1 times [2025-03-04 10:59:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:46,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598432248] [2025-03-04 10:59:46,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:46,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:46,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:59:46,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:59:46,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:46,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:46,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543003346] [2025-03-04 10:59:46,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:46,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:46,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:46,303 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 10:59:46,304 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 10:59:46,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:59:46,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:59:46,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:46,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:46,333 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:59:46,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:46,401 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 10:59:46,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:46,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:46,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598432248] [2025-03-04 10:59:46,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:46,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543003346] [2025-03-04 10:59:46,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543003346] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:46,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:46,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492843723] [2025-03-04 10:59:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:46,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:46,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:46,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:46,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:46,402 INFO L87 Difference]: Start difference. First operand 196 states and 242 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 10:59:46,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:46,537 INFO L93 Difference]: Finished difference Result 220 states and 244 transitions. [2025-03-04 10:59:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 28 [2025-03-04 10:59:46,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:46,538 INFO L225 Difference]: With dead ends: 220 [2025-03-04 10:59:46,538 INFO L226 Difference]: Without dead ends: 219 [2025-03-04 10:59:46,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 10:59:46,539 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 62 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:46,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 344 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2025-03-04 10:59:46,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 197. [2025-03-04 10:59:46,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.6893939393939394) internal successors, (223), 184 states have internal predecessors, (223), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:59:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 243 transitions. [2025-03-04 10:59:46,546 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 243 transitions. Word has length 28 [2025-03-04 10:59:46,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:46,546 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 243 transitions. [2025-03-04 10:59:46,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 10:59:46,546 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 243 transitions. [2025-03-04 10:59:46,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 10:59:46,546 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:46,546 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] [2025-03-04 10:59:46,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-04 10:59:46,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:46,747 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:46,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:46,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1899967637, now seen corresponding path program 1 times [2025-03-04 10:59:46,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:46,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186676321] [2025-03-04 10:59:46,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:46,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:46,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:59:46,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:59:46,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:46,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:46,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297117220] [2025-03-04 10:59:46,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:46,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:46,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:46,760 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 10:59:46,760 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 10:59:46,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:59:46,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:59:46,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:46,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:46,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:59:46,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:46,803 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 10:59:46,804 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:46,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186676321] [2025-03-04 10:59:46,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:46,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297117220] [2025-03-04 10:59:46,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297117220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:46,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:46,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:59:46,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184331714] [2025-03-04 10:59:46,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:46,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:59:46,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:46,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:59:46,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:59:46,805 INFO L87 Difference]: Start difference. First operand 197 states and 243 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 10:59:46,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:46,862 INFO L93 Difference]: Finished difference Result 223 states and 243 transitions. [2025-03-04 10:59:46,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:59:46,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 28 [2025-03-04 10:59:46,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:46,864 INFO L225 Difference]: With dead ends: 223 [2025-03-04 10:59:46,864 INFO L226 Difference]: Without dead ends: 221 [2025-03-04 10:59:46,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 10:59:46,864 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 61 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:46,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 273 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2025-03-04 10:59:46,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 197. [2025-03-04 10:59:46,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 184 states have internal predecessors, (221), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-04 10:59:46,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2025-03-04 10:59:46,870 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 28 [2025-03-04 10:59:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:46,871 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2025-03-04 10:59:46,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 10:59:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2025-03-04 10:59:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-04 10:59:46,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:46,871 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 10:59:46,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-04 10:59:47,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:47,073 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:47,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1709246944, now seen corresponding path program 1 times [2025-03-04 10:59:47,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:47,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222538971] [2025-03-04 10:59:47,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:47,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:47,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:59:47,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:59:47,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:47,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:47,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117107339] [2025-03-04 10:59:47,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:47,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:47,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:47,088 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 10:59:47,090 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 10:59:47,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-04 10:59:47,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-04 10:59:47,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:47,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:47,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 10:59:47,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:47,138 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 10:59:47,139 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:47,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:47,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222538971] [2025-03-04 10:59:47,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:47,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117107339] [2025-03-04 10:59:47,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117107339] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:47,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:47,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:59:47,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333912777] [2025-03-04 10:59:47,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:47,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:59:47,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:47,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:59:47,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:59:47,140 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 10:59:47,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:47,198 INFO L93 Difference]: Finished difference Result 320 states and 411 transitions. [2025-03-04 10:59:47,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:59:47,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 29 [2025-03-04 10:59:47,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:47,200 INFO L225 Difference]: With dead ends: 320 [2025-03-04 10:59:47,200 INFO L226 Difference]: Without dead ends: 314 [2025-03-04 10:59:47,200 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 10:59:47,201 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 63 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:47,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 238 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:47,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2025-03-04 10:59:47,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 280. [2025-03-04 10:59:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 259 states have internal predecessors, (347), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:47,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 383 transitions. [2025-03-04 10:59:47,209 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 383 transitions. Word has length 29 [2025-03-04 10:59:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:47,209 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 383 transitions. [2025-03-04 10:59:47,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 10:59:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 383 transitions. [2025-03-04 10:59:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-04 10:59:47,209 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:47,209 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] [2025-03-04 10:59:47,215 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 10:59:47,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-04 10:59:47,410 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:47,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:47,410 INFO L85 PathProgramCache]: Analyzing trace with hash -507795895, now seen corresponding path program 1 times [2025-03-04 10:59:47,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:47,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098007732] [2025-03-04 10:59:47,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:47,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:47,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 10:59:47,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 10:59:47,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:47,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:47,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35317083] [2025-03-04 10:59:47,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:47,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:47,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:47,421 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 10:59:47,423 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 10:59:47,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-04 10:59:47,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-04 10:59:47,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:47,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:47,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:47,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:47,515 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 10:59:47,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:47,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:47,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098007732] [2025-03-04 10:59:47,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:47,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35317083] [2025-03-04 10:59:47,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35317083] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:47,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:47,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:47,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236025372] [2025-03-04 10:59:47,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:47,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:47,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:47,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:47,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:47,517 INFO L87 Difference]: Start difference. First operand 280 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), 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 10:59:47,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:47,642 INFO L93 Difference]: Finished difference Result 301 states and 383 transitions. [2025-03-04 10:59:47,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:47,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (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 30 [2025-03-04 10:59:47,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:47,643 INFO L225 Difference]: With dead ends: 301 [2025-03-04 10:59:47,643 INFO L226 Difference]: Without dead ends: 300 [2025-03-04 10:59:47,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 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 10:59:47,644 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 195 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:47,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 223 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:47,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2025-03-04 10:59:47,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2025-03-04 10:59:47,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.6666666666666667) internal successors, (345), 259 states have internal predecessors, (345), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:47,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 381 transitions. [2025-03-04 10:59:47,653 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 381 transitions. Word has length 30 [2025-03-04 10:59:47,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:47,653 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 381 transitions. [2025-03-04 10:59:47,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (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 10:59:47,653 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 381 transitions. [2025-03-04 10:59:47,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 10:59:47,654 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:47,654 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 10:59:47,660 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 10:59:47,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:47,854 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:47,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:47,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1908806302, now seen corresponding path program 1 times [2025-03-04 10:59:47,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:47,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123713581] [2025-03-04 10:59:47,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:47,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:59:47,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:59:47,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:47,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:47,937 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 10:59:47,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:47,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123713581] [2025-03-04 10:59:47,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123713581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:47,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:47,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:59:47,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501259744] [2025-03-04 10:59:47,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:47,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:59:47,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:47,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:59:47,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:59:47,939 INFO L87 Difference]: Start difference. First operand 280 states and 381 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 10:59:48,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:48,207 INFO L93 Difference]: Finished difference Result 312 states and 391 transitions. [2025-03-04 10:59:48,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:59:48,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 31 [2025-03-04 10:59:48,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:48,215 INFO L225 Difference]: With dead ends: 312 [2025-03-04 10:59:48,215 INFO L226 Difference]: Without dead ends: 311 [2025-03-04 10:59:48,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:59:48,217 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 63 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:48,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 516 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-04 10:59:48,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2025-03-04 10:59:48,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 285. [2025-03-04 10:59:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.6603773584905661) internal successors, (352), 264 states have internal predecessors, (352), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2025-03-04 10:59:48,226 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 31 [2025-03-04 10:59:48,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:48,226 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2025-03-04 10:59:48,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 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 10:59:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2025-03-04 10:59:48,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-03-04 10:59:48,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:48,227 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 10:59:48,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-04 10:59:48,227 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:48,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:48,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1438196512, now seen corresponding path program 1 times [2025-03-04 10:59:48,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557993796] [2025-03-04 10:59:48,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:48,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:59:48,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:59:48,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:48,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [794082472] [2025-03-04 10:59:48,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:48,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:48,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:48,237 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 10:59:48,239 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 10:59:48,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-03-04 10:59:48,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-03-04 10:59:48,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:48,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:48,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:48,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:48,315 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 10:59:48,316 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:48,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557993796] [2025-03-04 10:59:48,316 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [794082472] [2025-03-04 10:59:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [794082472] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:48,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:48,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:48,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268623227] [2025-03-04 10:59:48,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:48,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:48,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:48,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:48,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:48,317 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (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 10:59:48,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:48,416 INFO L93 Difference]: Finished difference Result 306 states and 388 transitions. [2025-03-04 10:59:48,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:48,416 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (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 31 [2025-03-04 10:59:48,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:48,417 INFO L225 Difference]: With dead ends: 306 [2025-03-04 10:59:48,417 INFO L226 Difference]: Without dead ends: 305 [2025-03-04 10:59:48,418 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 10:59:48,418 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 157 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:48,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 236 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:48,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-03-04 10:59:48,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2025-03-04 10:59:48,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.650943396226415) internal successors, (350), 264 states have internal predecessors, (350), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 386 transitions. [2025-03-04 10:59:48,426 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 386 transitions. Word has length 31 [2025-03-04 10:59:48,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:48,426 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 386 transitions. [2025-03-04 10:59:48,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (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 10:59:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 386 transitions. [2025-03-04 10:59:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 10:59:48,426 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:48,427 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 10:59:48,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 10:59:48,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:48,631 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:48,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash -956546780, now seen corresponding path program 1 times [2025-03-04 10:59:48,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:48,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73800233] [2025-03-04 10:59:48,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:48,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:48,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 10:59:48,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 10:59:48,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:48,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:48,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754477518] [2025-03-04 10:59:48,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:48,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:48,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:48,648 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 10:59:48,650 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 10:59:48,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 10:59:48,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 10:59:48,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:48,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:48,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:59:48,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:48,738 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 10:59:48,738 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:48,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73800233] [2025-03-04 10:59:48,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:48,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754477518] [2025-03-04 10:59:48,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754477518] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:48,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:48,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 10:59:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066402650] [2025-03-04 10:59:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:48,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:59:48,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:48,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:59:48,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:59:48,740 INFO L87 Difference]: Start difference. First operand 285 states and 386 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 10:59:48,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:48,896 INFO L93 Difference]: Finished difference Result 329 states and 397 transitions. [2025-03-04 10:59:48,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 10:59:48,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 32 [2025-03-04 10:59:48,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:48,901 INFO L225 Difference]: With dead ends: 329 [2025-03-04 10:59:48,901 INFO L226 Difference]: Without dead ends: 328 [2025-03-04 10:59:48,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 10:59:48,901 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 173 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:48,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 419 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2025-03-04 10:59:48,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 287. [2025-03-04 10:59:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.644859813084112) internal successors, (352), 266 states have internal predecessors, (352), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 388 transitions. [2025-03-04 10:59:48,910 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 388 transitions. Word has length 32 [2025-03-04 10:59:48,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:48,910 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 388 transitions. [2025-03-04 10:59:48,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 10:59:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 388 transitions. [2025-03-04 10:59:48,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-03-04 10:59:48,910 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:48,911 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 10:59:48,916 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 10:59:49,111 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,SelfDestructingSolverStorable16 [2025-03-04 10:59:49,111 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:49,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1634418983, now seen corresponding path program 1 times [2025-03-04 10:59:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:49,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398514791] [2025-03-04 10:59:49,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:49,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:49,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 10:59:49,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 10:59:49,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:49,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:49,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077864944] [2025-03-04 10:59:49,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:49,121 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 10:59:49,122 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 10:59:49,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-04 10:59:49,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-04 10:59:49,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:49,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:49,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:49,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:49,183 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 10:59:49,183 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:49,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:49,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398514791] [2025-03-04 10:59:49,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:49,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077864944] [2025-03-04 10:59:49,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077864944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:49,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:49,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674016888] [2025-03-04 10:59:49,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:49,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:49,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:49,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:49,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:49,184 INFO L87 Difference]: Start difference. First operand 287 states and 388 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 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 10:59:49,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:49,262 INFO L93 Difference]: Finished difference Result 313 states and 391 transitions. [2025-03-04 10:59:49,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:49,262 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), 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 32 [2025-03-04 10:59:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:49,263 INFO L225 Difference]: With dead ends: 313 [2025-03-04 10:59:49,263 INFO L226 Difference]: Without dead ends: 312 [2025-03-04 10:59:49,263 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 10:59:49,264 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 115 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:49,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 297 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2025-03-04 10:59:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 287. [2025-03-04 10:59:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.6355140186915889) internal successors, (350), 266 states have internal predecessors, (350), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 386 transitions. [2025-03-04 10:59:49,272 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 386 transitions. Word has length 32 [2025-03-04 10:59:49,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:49,272 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 386 transitions. [2025-03-04 10:59:49,272 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), 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 10:59:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 386 transitions. [2025-03-04 10:59:49,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-03-04 10:59:49,272 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:49,273 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 10:59:49,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-04 10:59:49,477 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,SelfDestructingSolverStorable17 [2025-03-04 10:59:49,477 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:49,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash -872619010, now seen corresponding path program 1 times [2025-03-04 10:59:49,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:49,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907732200] [2025-03-04 10:59:49,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:49,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:49,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 10:59:49,483 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 10:59:49,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:49,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:49,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015607041] [2025-03-04 10:59:49,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:49,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:49,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:49,486 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 10:59:49,487 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 10:59:49,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 10:59:49,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 10:59:49,518 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:49,518 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:49,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:49,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:49,589 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 10:59:49,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:49,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:49,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907732200] [2025-03-04 10:59:49,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:49,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015607041] [2025-03-04 10:59:49,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015607041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:49,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:49,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:49,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729268514] [2025-03-04 10:59:49,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:49,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:49,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:49,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:49,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:49,592 INFO L87 Difference]: Start difference. First operand 287 states and 386 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 10:59:49,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:49,783 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2025-03-04 10:59:49,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:49,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 33 [2025-03-04 10:59:49,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:49,784 INFO L225 Difference]: With dead ends: 314 [2025-03-04 10:59:49,785 INFO L226 Difference]: Without dead ends: 313 [2025-03-04 10:59:49,785 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 10:59:49,785 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 67 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:49,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 379 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:59:49,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-03-04 10:59:49,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2025-03-04 10:59:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.6261682242990654) internal successors, (348), 266 states have internal predecessors, (348), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 384 transitions. [2025-03-04 10:59:49,806 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 384 transitions. Word has length 33 [2025-03-04 10:59:49,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:49,807 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 384 transitions. [2025-03-04 10:59:49,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 10:59:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 384 transitions. [2025-03-04 10:59:49,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-03-04 10:59:49,807 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:49,807 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:49,813 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 10:59:50,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:50,011 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:50,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:50,012 INFO L85 PathProgramCache]: Analyzing trace with hash 622996137, now seen corresponding path program 1 times [2025-03-04 10:59:50,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:50,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059727970] [2025-03-04 10:59:50,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:50,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:50,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 10:59:50,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 10:59:50,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:50,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:50,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:50,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059727970] [2025-03-04 10:59:50,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059727970] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:50,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728237726] [2025-03-04 10:59:50,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:50,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:50,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:50,077 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 10:59:50,079 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 10:59:50,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 10:59:50,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 10:59:50,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:50,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:50,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:59:50,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:50,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:50,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:50,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728237726] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:50,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:50,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2025-03-04 10:59:50,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279784828] [2025-03-04 10:59:50,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:50,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-04 10:59:50,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:50,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-04 10:59:50,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:59:50,173 INFO L87 Difference]: Start difference. First operand 287 states and 384 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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 10:59:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:50,259 INFO L93 Difference]: Finished difference Result 331 states and 425 transitions. [2025-03-04 10:59:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 10:59:50,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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 35 [2025-03-04 10:59:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:50,261 INFO L225 Difference]: With dead ends: 331 [2025-03-04 10:59:50,261 INFO L226 Difference]: Without dead ends: 329 [2025-03-04 10:59:50,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2025-03-04 10:59:50,261 INFO L435 NwaCegarLoop]: 160 mSDtfsCounter, 95 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:50,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 770 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:59:50,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-04 10:59:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 292. [2025-03-04 10:59:50,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 219 states have (on average 1.6164383561643836) internal successors, (354), 271 states have internal predecessors, (354), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 390 transitions. [2025-03-04 10:59:50,271 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 390 transitions. Word has length 35 [2025-03-04 10:59:50,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:50,271 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 390 transitions. [2025-03-04 10:59:50,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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 10:59:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 390 transitions. [2025-03-04 10:59:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-03-04 10:59:50,271 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:50,271 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] [2025-03-04 10:59:50,277 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 10:59:50,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:50,472 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:50,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:50,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1698836799, now seen corresponding path program 1 times [2025-03-04 10:59:50,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:50,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702459397] [2025-03-04 10:59:50,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:50,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 10:59:50,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 10:59:50,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:50,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:50,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702459397] [2025-03-04 10:59:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702459397] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403276362] [2025-03-04 10:59:50,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:50,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:50,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:50,539 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 10:59:50,540 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 10:59:50,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-03-04 10:59:50,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-03-04 10:59:50,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:50,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:50,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-04 10:59:50,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:50,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:50,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403276362] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:59:50,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:59:50,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2025-03-04 10:59:50,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288907089] [2025-03-04 10:59:50,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:50,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 10:59:50,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:50,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 10:59:50,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2025-03-04 10:59:50,700 INFO L87 Difference]: Start difference. First operand 292 states and 390 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 10:59:50,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:50,827 INFO L93 Difference]: Finished difference Result 528 states and 673 transitions. [2025-03-04 10:59:50,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-04 10:59:50,827 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2025-03-04 10:59:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:50,829 INFO L225 Difference]: With dead ends: 528 [2025-03-04 10:59:50,829 INFO L226 Difference]: Without dead ends: 351 [2025-03-04 10:59:50,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2025-03-04 10:59:50,831 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 96 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:50,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 944 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-03-04 10:59:50,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 315. [2025-03-04 10:59:50,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 242 states have (on average 1.5826446280991735) internal successors, (383), 294 states have internal predecessors, (383), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2025-03-04 10:59:50,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2025-03-04 10:59:50,846 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 37 [2025-03-04 10:59:50,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:50,846 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2025-03-04 10:59:50,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-04 10:59:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2025-03-04 10:59:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-04 10:59:50,847 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:50,847 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:50,853 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 10:59:51,048 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,SelfDestructingSolverStorable20 [2025-03-04 10:59:51,048 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:51,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:51,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1124335418, now seen corresponding path program 1 times [2025-03-04 10:59:51,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:51,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554311505] [2025-03-04 10:59:51,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:51,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:51,051 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 10:59:51,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 10:59:51,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:51,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:51,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554311505] [2025-03-04 10:59:51,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554311505] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:51,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833667457] [2025-03-04 10:59:51,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:51,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:51,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:51,147 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 10:59:51,149 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 10:59:51,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-04 10:59:51,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-04 10:59:51,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:51,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:51,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:59:51,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:51,215 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833667457] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:59:51,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:59:51,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2025-03-04 10:59:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353353467] [2025-03-04 10:59:51,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:51,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 10:59:51,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:51,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 10:59:51,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:59:51,283 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:59:51,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:51,774 INFO L93 Difference]: Finished difference Result 849 states and 1065 transitions. [2025-03-04 10:59:51,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 10:59:51,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2025-03-04 10:59:51,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:51,777 INFO L225 Difference]: With dead ends: 849 [2025-03-04 10:59:51,777 INFO L226 Difference]: Without dead ends: 821 [2025-03-04 10:59:51,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2025-03-04 10:59:51,778 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 902 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:51,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [906 Valid, 951 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 10:59:51,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2025-03-04 10:59:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 459. [2025-03-04 10:59:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.6084656084656084) internal successors, (608), 430 states have internal predecessors, (608), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-04 10:59:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 660 transitions. [2025-03-04 10:59:51,795 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 660 transitions. Word has length 38 [2025-03-04 10:59:51,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:51,795 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 660 transitions. [2025-03-04 10:59:51,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:59:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 660 transitions. [2025-03-04 10:59:51,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-04 10:59:51,796 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:51,796 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:51,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-04 10:59:51,996 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,SelfDestructingSolverStorable21 [2025-03-04 10:59:51,997 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:51,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:51,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1906931636, now seen corresponding path program 1 times [2025-03-04 10:59:51,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:51,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667005339] [2025-03-04 10:59:51,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:51,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:52,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 10:59:52,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 10:59:52,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:52,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:52,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697014035] [2025-03-04 10:59:52,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:52,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:52,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:52,007 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 10:59:52,008 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 10:59:52,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-04 10:59:52,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-04 10:59:52,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:52,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:52,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:52,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:52,105 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 10:59:52,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:52,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:52,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667005339] [2025-03-04 10:59:52,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:52,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697014035] [2025-03-04 10:59:52,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697014035] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:52,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:52,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:52,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473887568] [2025-03-04 10:59:52,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:52,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:52,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:52,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:52,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:52,107 INFO L87 Difference]: Start difference. First operand 459 states and 660 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 10:59:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:52,222 INFO L93 Difference]: Finished difference Result 479 states and 662 transitions. [2025-03-04 10:59:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:52,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 41 [2025-03-04 10:59:52,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:52,226 INFO L225 Difference]: With dead ends: 479 [2025-03-04 10:59:52,226 INFO L226 Difference]: Without dead ends: 478 [2025-03-04 10:59:52,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 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 10:59:52,227 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 197 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:52,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 219 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:52,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2025-03-04 10:59:52,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 459. [2025-03-04 10:59:52,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.6031746031746033) internal successors, (606), 430 states have internal predecessors, (606), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-04 10:59:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 658 transitions. [2025-03-04 10:59:52,244 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 658 transitions. Word has length 41 [2025-03-04 10:59:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:52,244 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 658 transitions. [2025-03-04 10:59:52,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 10:59:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 658 transitions. [2025-03-04 10:59:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-04 10:59:52,245 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:52,245 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:52,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-04 10:59:52,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:52,446 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:52,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:52,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1014661488, now seen corresponding path program 1 times [2025-03-04 10:59:52,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:52,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579840897] [2025-03-04 10:59:52,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:52,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:52,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 10:59:52,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 10:59:52,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:52,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:52,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421340523] [2025-03-04 10:59:52,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:52,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:52,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:52,461 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 10:59:52,463 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 10:59:52,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 10:59:52,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 10:59:52,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:52,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:52,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:52,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:52,554 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 10:59:52,555 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:52,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579840897] [2025-03-04 10:59:52,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:52,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421340523] [2025-03-04 10:59:52,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421340523] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:52,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:52,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:52,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888408331] [2025-03-04 10:59:52,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:52,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:52,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:52,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:52,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:52,556 INFO L87 Difference]: Start difference. First operand 459 states and 658 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 10:59:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:52,681 INFO L93 Difference]: Finished difference Result 479 states and 660 transitions. [2025-03-04 10:59:52,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:52,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 42 [2025-03-04 10:59:52,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:52,685 INFO L225 Difference]: With dead ends: 479 [2025-03-04 10:59:52,685 INFO L226 Difference]: Without dead ends: 478 [2025-03-04 10:59:52,685 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 10:59:52,685 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 159 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:52,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 232 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:52,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2025-03-04 10:59:52,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 459. [2025-03-04 10:59:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.597883597883598) internal successors, (604), 430 states have internal predecessors, (604), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-04 10:59:52,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 656 transitions. [2025-03-04 10:59:52,699 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 656 transitions. Word has length 42 [2025-03-04 10:59:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:52,699 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 656 transitions. [2025-03-04 10:59:52,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 10:59:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 656 transitions. [2025-03-04 10:59:52,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-04 10:59:52,699 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:52,699 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:52,705 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 10:59:52,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:52,900 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:52,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:52,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1389735114, now seen corresponding path program 1 times [2025-03-04 10:59:52,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:52,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929043441] [2025-03-04 10:59:52,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:52,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:52,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 10:59:52,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 10:59:52,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:52,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:52,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234279422] [2025-03-04 10:59:52,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:52,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:52,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:52,910 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 10:59:52,911 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 10:59:52,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 10:59:52,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 10:59:52,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:52,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:52,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:52,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:52,973 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 10:59:52,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:52,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:52,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929043441] [2025-03-04 10:59:52,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:52,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234279422] [2025-03-04 10:59:52,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234279422] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:52,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:52,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:52,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911050417] [2025-03-04 10:59:52,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:52,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:52,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:52,975 INFO L87 Difference]: Start difference. First operand 459 states and 656 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 10:59:53,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:53,082 INFO L93 Difference]: Finished difference Result 488 states and 667 transitions. [2025-03-04 10:59:53,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:53,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 43 [2025-03-04 10:59:53,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:53,084 INFO L225 Difference]: With dead ends: 488 [2025-03-04 10:59:53,084 INFO L226 Difference]: Without dead ends: 487 [2025-03-04 10:59:53,084 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 10:59:53,084 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 107 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:53,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 291 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:53,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2025-03-04 10:59:53,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 459. [2025-03-04 10:59:53,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.5925925925925926) internal successors, (602), 430 states have internal predecessors, (602), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-04 10:59:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 654 transitions. [2025-03-04 10:59:53,104 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 654 transitions. Word has length 43 [2025-03-04 10:59:53,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:53,105 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 654 transitions. [2025-03-04 10:59:53,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 10:59:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 654 transitions. [2025-03-04 10:59:53,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-04 10:59:53,106 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:53,106 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:53,112 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 10:59:53,306 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,SelfDestructingSolverStorable24 [2025-03-04 10:59:53,307 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:53,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:53,307 INFO L85 PathProgramCache]: Analyzing trace with hash 132115630, now seen corresponding path program 1 times [2025-03-04 10:59:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:53,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570934695] [2025-03-04 10:59:53,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:53,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 10:59:53,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 10:59:53,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:53,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:53,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709523062] [2025-03-04 10:59:53,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:53,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:53,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:53,321 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 10:59:53,322 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 10:59:53,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 10:59:53,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 10:59:53,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:53,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:53,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 10:59:53,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:53,431 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 10:59:53,431 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:53,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:53,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570934695] [2025-03-04 10:59:53,431 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:53,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709523062] [2025-03-04 10:59:53,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709523062] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:53,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:59:53,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:59:53,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100110794] [2025-03-04 10:59:53,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:53,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:59:53,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:53,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:59:53,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:59:53,432 INFO L87 Difference]: Start difference. First operand 459 states and 654 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, (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 10:59:53,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:53,574 INFO L93 Difference]: Finished difference Result 489 states and 666 transitions. [2025-03-04 10:59:53,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:59:53,574 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, (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 44 [2025-03-04 10:59:53,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:53,576 INFO L225 Difference]: With dead ends: 489 [2025-03-04 10:59:53,576 INFO L226 Difference]: Without dead ends: 488 [2025-03-04 10:59:53,576 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 10:59:53,576 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 106 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:53,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 293 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:53,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2025-03-04 10:59:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 459. [2025-03-04 10:59:53,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.5873015873015872) internal successors, (600), 430 states have internal predecessors, (600), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2025-03-04 10:59:53,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 652 transitions. [2025-03-04 10:59:53,591 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 652 transitions. Word has length 44 [2025-03-04 10:59:53,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:53,591 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 652 transitions. [2025-03-04 10:59:53,591 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, (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 10:59:53,591 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 652 transitions. [2025-03-04 10:59:53,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-04 10:59:53,592 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:53,592 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:53,598 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 10:59:53,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-04 10:59:53,792 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:53,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:53,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1080883299, now seen corresponding path program 1 times [2025-03-04 10:59:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:53,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755914163] [2025-03-04 10:59:53,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:53,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 10:59:53,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 10:59:53,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:53,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:53,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:53,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755914163] [2025-03-04 10:59:53,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755914163] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:53,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550311345] [2025-03-04 10:59:53,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:53,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:53,877 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 10:59:53,879 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 10:59:53,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-04 10:59:53,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-04 10:59:53,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:53,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:53,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 10:59:53,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:54,002 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:54,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:54,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550311345] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:59:54,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:59:54,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2025-03-04 10:59:54,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583149351] [2025-03-04 10:59:54,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:54,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-03-04 10:59:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:54,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-03-04 10:59:54,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2025-03-04 10:59:54,132 INFO L87 Difference]: Start difference. First operand 459 states and 652 transitions. Second operand has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 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 10:59:54,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:54,561 INFO L93 Difference]: Finished difference Result 1305 states and 1810 transitions. [2025-03-04 10:59:54,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2025-03-04 10:59:54,562 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 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 10:59:54,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:54,565 INFO L225 Difference]: With dead ends: 1305 [2025-03-04 10:59:54,565 INFO L226 Difference]: Without dead ends: 984 [2025-03-04 10:59:54,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2025-03-04 10:59:54,566 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 876 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 2305 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:54,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 2305 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:59:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2025-03-04 10:59:54,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 779. [2025-03-04 10:59:54,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 668 states have (on average 1.598802395209581) internal successors, (1068), 720 states have internal predecessors, (1068), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-04 10:59:54,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1176 transitions. [2025-03-04 10:59:54,591 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1176 transitions. Word has length 45 [2025-03-04 10:59:54,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:54,592 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 1176 transitions. [2025-03-04 10:59:54,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 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 10:59:54,592 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1176 transitions. [2025-03-04 10:59:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-04 10:59:54,592 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:54,592 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:54,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-04 10:59:54,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-04 10:59:54,793 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:54,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash 848385042, now seen corresponding path program 1 times [2025-03-04 10:59:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:54,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333382554] [2025-03-04 10:59:54,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:54,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 10:59:54,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 10:59:54,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:54,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:54,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:54,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333382554] [2025-03-04 10:59:54,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333382554] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:54,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544065019] [2025-03-04 10:59:54,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:54,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:54,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:54,864 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 10:59:54,865 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 10:59:54,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 10:59:54,895 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 10:59:54,895 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:54,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:54,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:59:54,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 10:59:54,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:54,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544065019] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:54,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:54,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2025-03-04 10:59:54,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113999754] [2025-03-04 10:59:54,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:54,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 10:59:54,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:54,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 10:59:54,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-04 10:59:54,932 INFO L87 Difference]: Start difference. First operand 779 states and 1176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 10:59:55,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:55,142 INFO L93 Difference]: Finished difference Result 1668 states and 2497 transitions. [2025-03-04 10:59:55,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:59:55,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 46 [2025-03-04 10:59:55,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:55,145 INFO L225 Difference]: With dead ends: 1668 [2025-03-04 10:59:55,145 INFO L226 Difference]: Without dead ends: 1220 [2025-03-04 10:59:55,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:59:55,147 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 216 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:55,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 785 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:59:55,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2025-03-04 10:59:55,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 876. [2025-03-04 10:59:55,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 765 states have (on average 1.5869281045751633) internal successors, (1214), 817 states have internal predecessors, (1214), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2025-03-04 10:59:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1322 transitions. [2025-03-04 10:59:55,177 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1322 transitions. Word has length 46 [2025-03-04 10:59:55,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:55,177 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1322 transitions. [2025-03-04 10:59:55,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 10:59:55,178 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1322 transitions. [2025-03-04 10:59:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-04 10:59:55,178 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:55,178 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:55,184 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-04 10:59:55,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:55,379 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:55,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:55,379 INFO L85 PathProgramCache]: Analyzing trace with hash 653237883, now seen corresponding path program 1 times [2025-03-04 10:59:55,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:55,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93581675] [2025-03-04 10:59:55,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:55,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:55,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-04 10:59:55,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-04 10:59:55,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:55,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:55,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954051599] [2025-03-04 10:59:55,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:55,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:55,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:55,390 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 10:59:55,392 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 10:59:55,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-04 10:59:55,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-04 10:59:55,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:55,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:55,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:59:55,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:55,560 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:55,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:55,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:55,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93581675] [2025-03-04 10:59:55,787 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:55,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954051599] [2025-03-04 10:59:55,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954051599] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:59:55,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 10:59:55,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2025-03-04 10:59:55,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870974726] [2025-03-04 10:59:55,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:55,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:59:55,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:55,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:59:55,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:59:55,788 INFO L87 Difference]: Start difference. First operand 876 states and 1322 transitions. Second operand has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 10:59:56,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:56,355 INFO L93 Difference]: Finished difference Result 1648 states and 2474 transitions. [2025-03-04 10:59:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 10:59:56,355 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2025-03-04 10:59:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:56,359 INFO L225 Difference]: With dead ends: 1648 [2025-03-04 10:59:56,360 INFO L226 Difference]: Without dead ends: 1645 [2025-03-04 10:59:56,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2025-03-04 10:59:56,360 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 859 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:56,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1258 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 10:59:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2025-03-04 10:59:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1121. [2025-03-04 10:59:56,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1007 states have (on average 1.5938430983118173) internal successors, (1605), 1059 states have internal predecessors, (1605), 57 states have call successors, (57), 4 states have call predecessors, (57), 4 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2025-03-04 10:59:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1719 transitions. [2025-03-04 10:59:56,423 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1719 transitions. Word has length 47 [2025-03-04 10:59:56,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:56,423 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1719 transitions. [2025-03-04 10:59:56,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 10:59:56,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1719 transitions. [2025-03-04 10:59:56,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-04 10:59:56,424 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:56,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:56,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-04 10:59:56,624 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,SelfDestructingSolverStorable28 [2025-03-04 10:59:56,625 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:56,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1224462030, now seen corresponding path program 1 times [2025-03-04 10:59:56,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:56,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529222078] [2025-03-04 10:59:56,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:56,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:56,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 10:59:56,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 10:59:56,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:56,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:56,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [705560489] [2025-03-04 10:59:56,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:56,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:56,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:56,635 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 10:59:56,636 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 10:59:56,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 10:59:56,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 10:59:56,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:56,666 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:56,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:59:56,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:56,802 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:57,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:57,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529222078] [2025-03-04 10:59:57,177 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:57,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705560489] [2025-03-04 10:59:57,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705560489] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:57,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:57,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:59:57,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32121493] [2025-03-04 10:59:57,178 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:57,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:59:57,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:57,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:59:57,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:59:57,179 INFO L87 Difference]: Start difference. First operand 1121 states and 1719 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:59:57,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:57,388 INFO L93 Difference]: Finished difference Result 1558 states and 2383 transitions. [2025-03-04 10:59:57,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:59:57,389 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2025-03-04 10:59:57,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:57,393 INFO L225 Difference]: With dead ends: 1558 [2025-03-04 10:59:57,393 INFO L226 Difference]: Without dead ends: 1556 [2025-03-04 10:59:57,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:59:57,394 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 552 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:57,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 489 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:57,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2025-03-04 10:59:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1426. [2025-03-04 10:59:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.6133540372670807) internal successors, (2078), 1340 states have internal predecessors, (2078), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 10:59:57,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2240 transitions. [2025-03-04 10:59:57,445 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2240 transitions. Word has length 48 [2025-03-04 10:59:57,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:57,445 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2240 transitions. [2025-03-04 10:59:57,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:59:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2240 transitions. [2025-03-04 10:59:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-04 10:59:57,446 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:57,446 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:57,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-04 10:59:57,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:57,647 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:57,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:57,648 INFO L85 PathProgramCache]: Analyzing trace with hash 696382809, now seen corresponding path program 1 times [2025-03-04 10:59:57,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:57,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460994613] [2025-03-04 10:59:57,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:57,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:57,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-04 10:59:57,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-04 10:59:57,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:57,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:57,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59107383] [2025-03-04 10:59:57,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:57,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:57,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:57,659 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 10:59:57,661 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 10:59:57,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-04 10:59:57,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-04 10:59:57,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:57,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:57,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:59:57,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:57,874 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:57,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:58,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:58,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460994613] [2025-03-04 10:59:58,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:58,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59107383] [2025-03-04 10:59:58,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59107383] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:58,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:58,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:59:58,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270875695] [2025-03-04 10:59:58,005 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:58,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:59:58,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:58,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:59:58,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:59:58,006 INFO L87 Difference]: Start difference. First operand 1426 states and 2240 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:59:58,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:58,231 INFO L93 Difference]: Finished difference Result 1492 states and 2265 transitions. [2025-03-04 10:59:58,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 10:59:58,231 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2025-03-04 10:59:58,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:58,235 INFO L225 Difference]: With dead ends: 1492 [2025-03-04 10:59:58,235 INFO L226 Difference]: Without dead ends: 1490 [2025-03-04 10:59:58,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:59:58,236 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 407 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:58,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 488 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:59:58,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2025-03-04 10:59:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1426. [2025-03-04 10:59:58,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.6055900621118013) internal successors, (2068), 1340 states have internal predecessors, (2068), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 10:59:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2025-03-04 10:59:58,325 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 49 [2025-03-04 10:59:58,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:58,325 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2025-03-04 10:59:58,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:59:58,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2025-03-04 10:59:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-04 10:59:58,325 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:58,325 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:58,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-04 10:59:58,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:58,530 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:58,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:58,530 INFO L85 PathProgramCache]: Analyzing trace with hash 113030672, now seen corresponding path program 1 times [2025-03-04 10:59:58,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:58,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010960259] [2025-03-04 10:59:58,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:58,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:58,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-04 10:59:58,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-04 10:59:58,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:58,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:59:58,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117388111] [2025-03-04 10:59:58,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:58,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:58,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:58,541 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 10:59:58,542 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 10:59:58,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-04 10:59:58,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-04 10:59:58,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:58,573 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:58,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:59:58,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:58,703 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 10:59:58,703 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:59:59,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010960259] [2025-03-04 10:59:59,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:59:59,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117388111] [2025-03-04 10:59:59,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117388111] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:59,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:59,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-04 10:59:59,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27550872] [2025-03-04 10:59:59,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 10:59:59,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 10:59:59,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:59,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 10:59:59,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-04 10:59:59,027 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:59:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:59,209 INFO L93 Difference]: Finished difference Result 1492 states and 2255 transitions. [2025-03-04 10:59:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 10:59:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2025-03-04 10:59:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:59,213 INFO L225 Difference]: With dead ends: 1492 [2025-03-04 10:59:59,213 INFO L226 Difference]: Without dead ends: 1490 [2025-03-04 10:59:59,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:59:59,214 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 361 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:59,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 693 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:59:59,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2025-03-04 10:59:59,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1426. [2025-03-04 10:59:59,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.5978260869565217) internal successors, (2058), 1340 states have internal predecessors, (2058), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 10:59:59,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2220 transitions. [2025-03-04 10:59:59,265 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2220 transitions. Word has length 50 [2025-03-04 10:59:59,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:59,265 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2220 transitions. [2025-03-04 10:59:59,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 10:59:59,266 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2220 transitions. [2025-03-04 10:59:59,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-04 10:59:59,266 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:59,266 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:59,272 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 10:59:59,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:59,467 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 10:59:59,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:59:59,467 INFO L85 PathProgramCache]: Analyzing trace with hash 2046454803, now seen corresponding path program 1 times [2025-03-04 10:59:59,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:59:59,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440289221] [2025-03-04 10:59:59,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:59,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:59:59,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 10:59:59,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 10:59:59,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:59,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-04 10:59:59,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:59:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440289221] [2025-03-04 10:59:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440289221] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:59:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1283308218] [2025-03-04 10:59:59,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:59:59,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:59:59,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:59:59,543 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 10:59:59,544 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 10:59:59,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 10:59:59,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 10:59:59,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:59:59,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:59:59,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:59:59,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:59:59,691 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 10:59:59,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:59:59,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1283308218] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:59:59,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 10:59:59,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2025-03-04 10:59:59,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198435174] [2025-03-04 10:59:59,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:59:59,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:59:59,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:59:59,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:59:59,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-03-04 10:59:59,693 INFO L87 Difference]: Start difference. First operand 1426 states and 2220 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 10:59:59,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:59:59,923 INFO L93 Difference]: Finished difference Result 1456 states and 2236 transitions. [2025-03-04 10:59:59,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:59:59,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 52 [2025-03-04 10:59:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:59:59,927 INFO L225 Difference]: With dead ends: 1456 [2025-03-04 10:59:59,927 INFO L226 Difference]: Without dead ends: 1455 [2025-03-04 10:59:59,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2025-03-04 10:59:59,928 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 289 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:59:59,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 302 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:59:59,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2025-03-04 10:59:59,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1426. [2025-03-04 10:59:59,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.595496894409938) internal successors, (2055), 1340 states have internal predecessors, (2055), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 10:59:59,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2217 transitions. [2025-03-04 10:59:59,975 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2217 transitions. Word has length 52 [2025-03-04 10:59:59,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:59:59,975 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2217 transitions. [2025-03-04 10:59:59,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 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 10:59:59,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2217 transitions. [2025-03-04 10:59:59,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-04 10:59:59,975 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:59:59,975 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:59:59,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-04 11:00:00,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:00,179 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:00,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:00,180 INFO L85 PathProgramCache]: Analyzing trace with hash -791016393, now seen corresponding path program 1 times [2025-03-04 11:00:00,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:00,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278942067] [2025-03-04 11:00:00,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:00,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:00,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-04 11:00:00,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-04 11:00:00,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:00,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:00,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780347961] [2025-03-04 11:00:00,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:00,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:00,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:00,190 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:00,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-04 11:00:00,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-04 11:00:00,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-04 11:00:00,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:00,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:00,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-04 11:00:00,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:00,388 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:00:00,570 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:00,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:00,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278942067] [2025-03-04 11:00:00,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:00,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780347961] [2025-03-04 11:00:00,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780347961] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:00:00,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:00:00,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-03-04 11:00:00,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918190446] [2025-03-04 11:00:00,571 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:00:00,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 11:00:00,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:00,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 11:00:00,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-03-04 11:00:00,571 INFO L87 Difference]: Start difference. First operand 1426 states and 2217 transitions. Second operand has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:00:01,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:01,248 INFO L93 Difference]: Finished difference Result 1499 states and 2242 transitions. [2025-03-04 11:00:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 11:00:01,249 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2025-03-04 11:00:01,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:01,252 INFO L225 Difference]: With dead ends: 1499 [2025-03-04 11:00:01,252 INFO L226 Difference]: Without dead ends: 1498 [2025-03-04 11:00:01,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2025-03-04 11:00:01,253 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 716 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:01,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 797 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-04 11:00:01,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2025-03-04 11:00:01,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1426. [2025-03-04 11:00:01,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.5885093167701863) internal successors, (2046), 1340 states have internal predecessors, (2046), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 11:00:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2208 transitions. [2025-03-04 11:00:01,308 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2208 transitions. Word has length 51 [2025-03-04 11:00:01,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:01,308 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2208 transitions. [2025-03-04 11:00:01,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-04 11:00:01,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2208 transitions. [2025-03-04 11:00:01,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-04 11:00:01,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:01,309 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:00:01,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-04 11:00:01,509 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,SelfDestructingSolverStorable33 [2025-03-04 11:00:01,510 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:01,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:01,510 INFO L85 PathProgramCache]: Analyzing trace with hash -984410500, now seen corresponding path program 1 times [2025-03-04 11:00:01,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:01,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800278638] [2025-03-04 11:00:01,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:01,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:01,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 11:00:01,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:00:01,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:01,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:01,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850371924] [2025-03-04 11:00:01,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:01,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:01,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:01,519 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:01,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-04 11:00:01,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 11:00:01,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 11:00:01,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:01,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:01,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 11:00:01,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:01,622 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 11:00:01,623 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:00:01,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:01,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800278638] [2025-03-04 11:00:01,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:01,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850371924] [2025-03-04 11:00:01,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850371924] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:00:01,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:00:01,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:00:01,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227144858] [2025-03-04 11:00:01,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:00:01,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:00:01,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:01,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:00:01,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:00:01,625 INFO L87 Difference]: Start difference. First operand 1426 states and 2208 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:00:01,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:01,851 INFO L93 Difference]: Finished difference Result 1458 states and 2216 transitions. [2025-03-04 11:00:01,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:00:01,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 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 53 [2025-03-04 11:00:01,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:01,855 INFO L225 Difference]: With dead ends: 1458 [2025-03-04 11:00:01,855 INFO L226 Difference]: Without dead ends: 1457 [2025-03-04 11:00:01,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:00:01,856 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 311 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:01,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 319 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:00:01,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2025-03-04 11:00:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1426. [2025-03-04 11:00:01,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.5861801242236024) internal successors, (2043), 1340 states have internal predecessors, (2043), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 11:00:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2205 transitions. [2025-03-04 11:00:01,906 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2205 transitions. Word has length 53 [2025-03-04 11:00:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:01,906 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2205 transitions. [2025-03-04 11:00:01,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:00:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2205 transitions. [2025-03-04 11:00:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-04 11:00:01,906 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:01,906 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:00:01,913 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 11:00:02,107 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,SelfDestructingSolverStorable34 [2025-03-04 11:00:02,108 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:02,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:02,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1248295662, now seen corresponding path program 1 times [2025-03-04 11:00:02,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:02,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055042796] [2025-03-04 11:00:02,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:02,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:02,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 11:00:02,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 11:00:02,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:02,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:02,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [532937293] [2025-03-04 11:00:02,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:02,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:02,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:02,117 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:02,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-04 11:00:02,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-04 11:00:02,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-04 11:00:02,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:02,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:02,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-04 11:00:02,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:00:02,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:00:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-04 11:00:06,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055042796] [2025-03-04 11:00:06,643 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:06,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532937293] [2025-03-04 11:00:06,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532937293] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:00:06,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:00:06,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-04 11:00:06,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801065114] [2025-03-04 11:00:06,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:00:06,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 11:00:06,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:06,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 11:00:06,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2025-03-04 11:00:06,644 INFO L87 Difference]: Start difference. First operand 1426 states and 2205 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:00:07,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:07,539 INFO L93 Difference]: Finished difference Result 1501 states and 2232 transitions. [2025-03-04 11:00:07,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 11:00:07,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 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 52 [2025-03-04 11:00:07,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:07,545 INFO L225 Difference]: With dead ends: 1501 [2025-03-04 11:00:07,545 INFO L226 Difference]: Without dead ends: 1499 [2025-03-04 11:00:07,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2025-03-04 11:00:07,546 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 486 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:07,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 754 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-04 11:00:07,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2025-03-04 11:00:07,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1427. [2025-03-04 11:00:07,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1289 states have (on average 1.5748642358417377) internal successors, (2030), 1341 states have internal predecessors, (2030), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2025-03-04 11:00:07,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2192 transitions. [2025-03-04 11:00:07,614 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2192 transitions. Word has length 52 [2025-03-04 11:00:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:07,614 INFO L471 AbstractCegarLoop]: Abstraction has 1427 states and 2192 transitions. [2025-03-04 11:00:07,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-04 11:00:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2192 transitions. [2025-03-04 11:00:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-03-04 11:00:07,616 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:07,616 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, 1, 1] [2025-03-04 11:00:07,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-04 11:00:07,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-04 11:00:07,817 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:07,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1914915650, now seen corresponding path program 1 times [2025-03-04 11:00:07,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:07,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273321330] [2025-03-04 11:00:07,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:07,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:07,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 11:00:07,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 11:00:07,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:07,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:07,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [109221970] [2025-03-04 11:00:07,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:07,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:07,831 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:07,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-04 11:00:07,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 11:00:07,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 11:00:07,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:07,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:07,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:00:07,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:07,928 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 11:00:07,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:00:07,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:07,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273321330] [2025-03-04 11:00:07,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:07,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109221970] [2025-03-04 11:00:07,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109221970] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:00:07,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:00:07,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:00:07,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884147951] [2025-03-04 11:00:07,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:00:07,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:00:07,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:07,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:00:07,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:00:07,929 INFO L87 Difference]: Start difference. First operand 1427 states and 2192 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 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 11:00:08,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:08,095 INFO L93 Difference]: Finished difference Result 1489 states and 2259 transitions. [2025-03-04 11:00:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:00:08,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 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 59 [2025-03-04 11:00:08,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:08,103 INFO L225 Difference]: With dead ends: 1489 [2025-03-04 11:00:08,103 INFO L226 Difference]: Without dead ends: 1486 [2025-03-04 11:00:08,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:00:08,106 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 262 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:08,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 239 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:00:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2025-03-04 11:00:08,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1461. [2025-03-04 11:00:08,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.5648218347232752) internal successors, (2064), 1371 states have internal predecessors, (2064), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 11:00:08,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2234 transitions. [2025-03-04 11:00:08,168 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2234 transitions. Word has length 59 [2025-03-04 11:00:08,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:08,168 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2234 transitions. [2025-03-04 11:00:08,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 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 11:00:08,168 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2234 transitions. [2025-03-04 11:00:08,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-03-04 11:00:08,169 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:08,169 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:00:08,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-04 11:00:08,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:08,369 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:08,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:08,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2020597438, now seen corresponding path program 1 times [2025-03-04 11:00:08,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:08,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789189643] [2025-03-04 11:00:08,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:08,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:08,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 11:00:08,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 11:00:08,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:08,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:08,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757316437] [2025-03-04 11:00:08,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:08,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:08,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:08,378 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:08,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-04 11:00:08,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-03-04 11:00:08,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-03-04 11:00:08,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:08,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:08,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:00:08,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:08,572 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:08,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:00:16,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:16,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789189643] [2025-03-04 11:00:16,981 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:16,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757316437] [2025-03-04 11:00:16,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757316437] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:00:16,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:00:16,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:00:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334657315] [2025-03-04 11:00:16,982 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:00:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:00:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:16,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:00:16,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=113, Unknown=2, NotChecked=0, Total=156 [2025-03-04 11:00:16,982 INFO L87 Difference]: Start difference. First operand 1461 states and 2234 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:00:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:17,229 INFO L93 Difference]: Finished difference Result 1583 states and 2367 transitions. [2025-03-04 11:00:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:00:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2025-03-04 11:00:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:17,233 INFO L225 Difference]: With dead ends: 1583 [2025-03-04 11:00:17,233 INFO L226 Difference]: Without dead ends: 1581 [2025-03-04 11:00:17,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=41, Invalid=113, Unknown=2, NotChecked=0, Total=156 [2025-03-04 11:00:17,234 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 293 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:17,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 822 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:00:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2025-03-04 11:00:17,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1461. [2025-03-04 11:00:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.55724033358605) internal successors, (2054), 1371 states have internal predecessors, (2054), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 11:00:17,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2224 transitions. [2025-03-04 11:00:17,287 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2224 transitions. Word has length 58 [2025-03-04 11:00:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:17,287 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2224 transitions. [2025-03-04 11:00:17,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:00:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2224 transitions. [2025-03-04 11:00:17,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-04 11:00:17,290 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:17,290 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, 1, 1, 1] [2025-03-04 11:00:17,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-04 11:00:17,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-04 11:00:17,494 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:17,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:17,494 INFO L85 PathProgramCache]: Analyzing trace with hash 767157036, now seen corresponding path program 1 times [2025-03-04 11:00:17,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:17,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978583071] [2025-03-04 11:00:17,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:17,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 11:00:17,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:00:17,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:17,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:17,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431491402] [2025-03-04 11:00:17,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:17,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:17,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:17,504 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:17,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-04 11:00:17,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 11:00:17,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:00:17,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:17,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:17,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 11:00:17,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:17,605 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 11:00:17,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 11:00:17,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978583071] [2025-03-04 11:00:17,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431491402] [2025-03-04 11:00:17,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431491402] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 11:00:17,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 11:00:17,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 11:00:17,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744484138] [2025-03-04 11:00:17,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 11:00:17,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 11:00:17,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:17,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 11:00:17,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 11:00:17,607 INFO L87 Difference]: Start difference. First operand 1461 states and 2224 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), 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 11:00:17,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:17,776 INFO L93 Difference]: Finished difference Result 1487 states and 2240 transitions. [2025-03-04 11:00:17,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 11:00:17,778 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), 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 60 [2025-03-04 11:00:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:17,780 INFO L225 Difference]: With dead ends: 1487 [2025-03-04 11:00:17,780 INFO L226 Difference]: Without dead ends: 1486 [2025-03-04 11:00:17,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-03-04 11:00:17,781 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 259 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:17,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 240 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 11:00:17,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2025-03-04 11:00:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1461. [2025-03-04 11:00:17,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.5549658832448825) internal successors, (2051), 1371 states have internal predecessors, (2051), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 11:00:17,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2221 transitions. [2025-03-04 11:00:17,829 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2221 transitions. Word has length 60 [2025-03-04 11:00:17,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:17,829 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2221 transitions. [2025-03-04 11:00:17,829 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), 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 11:00:17,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2221 transitions. [2025-03-04 11:00:17,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-03-04 11:00:17,830 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:17,830 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:00:17,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-04 11:00:18,030 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,SelfDestructingSolverStorable38 [2025-03-04 11:00:18,030 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:18,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:18,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1785988798, now seen corresponding path program 1 times [2025-03-04 11:00:18,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:18,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085317672] [2025-03-04 11:00:18,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:18,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 11:00:18,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 11:00:18,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:18,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:18,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688281924] [2025-03-04 11:00:18,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:18,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:18,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:18,039 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:18,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-04 11:00:18,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-04 11:00:18,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-04 11:00:18,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:18,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:18,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:00:18,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:18,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:00:22,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:22,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085317672] [2025-03-04 11:00:22,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:22,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688281924] [2025-03-04 11:00:22,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688281924] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 11:00:22,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-04 11:00:22,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-04 11:00:22,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619380601] [2025-03-04 11:00:22,639 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-04 11:00:22,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 11:00:22,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:22,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 11:00:22,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=112, Unknown=1, NotChecked=0, Total=156 [2025-03-04 11:00:22,640 INFO L87 Difference]: Start difference. First operand 1461 states and 2221 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:00:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:22,880 INFO L93 Difference]: Finished difference Result 1583 states and 2354 transitions. [2025-03-04 11:00:22,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 11:00:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 59 [2025-03-04 11:00:22,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:22,883 INFO L225 Difference]: With dead ends: 1583 [2025-03-04 11:00:22,883 INFO L226 Difference]: Without dead ends: 1581 [2025-03-04 11:00:22,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=54, Invalid=127, Unknown=1, NotChecked=0, Total=182 [2025-03-04 11:00:22,884 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 600 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:22,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 551 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 11:00:22,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2025-03-04 11:00:22,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1461. [2025-03-04 11:00:22,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.5473843821076574) internal successors, (2041), 1371 states have internal predecessors, (2041), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2025-03-04 11:00:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2211 transitions. [2025-03-04 11:00:22,938 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2211 transitions. Word has length 59 [2025-03-04 11:00:22,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:22,938 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2211 transitions. [2025-03-04 11:00:22,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 11:00:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2211 transitions. [2025-03-04 11:00:22,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-04 11:00:22,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:22,938 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:00:22,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-04 11:00:23,139 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,SelfDestructingSolverStorable39 [2025-03-04 11:00:23,139 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:23,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:23,139 INFO L85 PathProgramCache]: Analyzing trace with hash 468922172, now seen corresponding path program 1 times [2025-03-04 11:00:23,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:23,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230375072] [2025-03-04 11:00:23,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:23,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:23,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 11:00:23,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:00:23,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:23,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:23,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724875091] [2025-03-04 11:00:23,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:23,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:23,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:23,149 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:23,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-04 11:00:23,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-04 11:00:23,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-04 11:00:23,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:23,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:23,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:00:23,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:23,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:23,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:00:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:23,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230375072] [2025-03-04 11:00:23,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:23,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724875091] [2025-03-04 11:00:23,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724875091] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:00:23,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:00:23,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2025-03-04 11:00:23,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098316685] [2025-03-04 11:00:23,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:00:23,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:00:23,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:23,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:00:23,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:00:23,541 INFO L87 Difference]: Start difference. First operand 1461 states and 2211 transitions. Second operand has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:00:33,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:33,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 11:00:33,636 INFO L93 Difference]: Finished difference Result 3564 states and 5372 transitions. [2025-03-04 11:00:33,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 11:00:33,637 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 60 [2025-03-04 11:00:33,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 11:00:33,643 INFO L225 Difference]: With dead ends: 3564 [2025-03-04 11:00:33,643 INFO L226 Difference]: Without dead ends: 3559 [2025-03-04 11:00:33,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=202, Invalid=553, Unknown=1, NotChecked=0, Total=756 [2025-03-04 11:00:33,644 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 1665 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 112 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-03-04 11:00:33,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 938 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 701 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2025-03-04 11:00:33,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2025-03-04 11:00:33,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 1744. [2025-03-04 11:00:33,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1600 states have (on average 1.53) internal successors, (2448), 1652 states have internal predecessors, (2448), 87 states have call successors, (87), 4 states have call predecessors, (87), 4 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-03-04 11:00:33,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2622 transitions. [2025-03-04 11:00:33,723 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2622 transitions. Word has length 60 [2025-03-04 11:00:33,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 11:00:33,723 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2622 transitions. [2025-03-04 11:00:33,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:00:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2622 transitions. [2025-03-04 11:00:33,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-04 11:00:33,723 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 11:00:33,724 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 11:00:33,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-04 11:00:33,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:33,924 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2025-03-04 11:00:33,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 11:00:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1651685504, now seen corresponding path program 1 times [2025-03-04 11:00:33,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 11:00:33,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560215854] [2025-03-04 11:00:33,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:33,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 11:00:33,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 11:00:33,931 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 11:00:33,931 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:33,931 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 11:00:33,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1147044121] [2025-03-04 11:00:33,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 11:00:33,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 11:00:33,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 11:00:33,934 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 11:00:33,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-04 11:00:33,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-04 11:00:33,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-04 11:00:33,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 11:00:33,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 11:00:33,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-04 11:00:33,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 11:00:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:34,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 11:00:34,529 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 11:00:34,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 11:00:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560215854] [2025-03-04 11:00:34,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 11:00:34,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147044121] [2025-03-04 11:00:34,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147044121] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 11:00:34,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-04 11:00:34,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2025-03-04 11:00:34,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198455323] [2025-03-04 11:00:34,529 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-04 11:00:34,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 11:00:34,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 11:00:34,529 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 11:00:34,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2025-03-04 11:00:34,530 INFO L87 Difference]: Start difference. First operand 1744 states and 2622 transitions. Second operand has 16 states, 14 states have (on average 7.285714285714286) internal successors, (102), 14 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-04 11:00:37,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:41,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:45,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:49,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:51,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:55,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:00:59,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:01:03,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:01:07,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:01:11,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:01:15,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:01:20,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-04 11:01:24,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1]