./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/prod4br-ll_valuebound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1a58ad3e10b615d95cc8c02ce2afb54c727e6977a5f6eabd49347a082a7a12 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:28:55,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:28:55,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:28:55,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:28:55,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:28:55,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:28:55,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:28:55,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:28:55,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:28:55,594 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:28:55,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:28:55,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:28:55,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:28:55,595 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:28:55,595 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:28:55,596 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:28:55,596 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:28:55,597 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:28:55,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:28:55,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:28:55,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:28:55,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:28:55,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:28:55,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:28:55,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:28:55,598 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 -> 2b1a58ad3e10b615d95cc8c02ce2afb54c727e6977a5f6eabd49347a082a7a12 [2025-03-09 02:28:55,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:28:55,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:28:55,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:28:55,812 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:28:55,812 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:28:55,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.c [2025-03-09 02:28:56,950 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5487a7f/a17b1c4cbf0f4f26993355db4514ce62/FLAG3fc4b526f [2025-03-09 02:28:57,187 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:28:57,188 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound100.c [2025-03-09 02:28:57,195 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5487a7f/a17b1c4cbf0f4f26993355db4514ce62/FLAG3fc4b526f [2025-03-09 02:28:57,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5487a7f/a17b1c4cbf0f4f26993355db4514ce62 [2025-03-09 02:28:57,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:28:57,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:28:57,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:28:57,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:28:57,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:28:57,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534b0224 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57, skipping insertion in model container [2025-03-09 02:28:57,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:28:57,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:28:57,360 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:28:57,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:28:57,390 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:28:57,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57 WrapperNode [2025-03-09 02:28:57,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:28:57,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:28:57,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:28:57,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:28:57,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,421 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2025-03-09 02:28:57,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:28:57,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:28:57,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:28:57,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:28:57,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,446 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]. [2025-03-09 02:28:57,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,450 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,456 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:28:57,458 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:28:57,461 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:28:57,461 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:28:57,462 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (1/1) ... [2025-03-09 02:28:57,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:28:57,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:28:57,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 02:28:57,501 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 [2025-03-09 02:28:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:28:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:28:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:28:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:28:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:28:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:28:57,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:28:57,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:28:57,561 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:28:57,562 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:28:57,857 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-03-09 02:28:57,858 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:28:57,870 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:28:57,872 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:28:57,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:28:57 BoogieIcfgContainer [2025-03-09 02:28:57,872 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:28:57,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:28:57,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:28:57,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:28:57,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:28:57" (1/3) ... [2025-03-09 02:28:57,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66954256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:28:57, skipping insertion in model container [2025-03-09 02:28:57,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:28:57" (2/3) ... [2025-03-09 02:28:57,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66954256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:28:57, skipping insertion in model container [2025-03-09 02:28:57,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:28:57" (3/3) ... [2025-03-09 02:28:57,880 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound100.c [2025-03-09 02:28:57,890 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:28:57,891 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound100.c that has 3 procedures, 112 locations, 1 initial locations, 1 loop locations, and 42 error locations. [2025-03-09 02:28:57,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:28:57,947 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;@1a2f717a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:28:57,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2025-03-09 02:28:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 61 states have (on average 1.8032786885245902) internal successors, (110), 103 states have internal predecessors, (110), 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) [2025-03-09 02:28:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-09 02:28:57,955 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:28:57,956 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:28:57,956 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:28:57,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:28:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1778423567, now seen corresponding path program 1 times [2025-03-09 02:28:57,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:28:57,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038092530] [2025-03-09 02:28:57,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:57,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:28:58,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:28:58,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:28:58,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:58,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:28:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:28:58,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:28:58,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038092530] [2025-03-09 02:28:58,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038092530] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:28:58,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661667694] [2025-03-09 02:28:58,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:58,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:28:58,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:28:58,080 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) [2025-03-09 02:28:58,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:28:58,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:28:58,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:28:58,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:58,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:28:58,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 02:28:58,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:28:58,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 02:28:58,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:28:58,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661667694] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:28:58,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:28:58,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-09 02:28:58,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439535752] [2025-03-09 02:28:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:28:58,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:28:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:28:58,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:28:58,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:28:58,152 INFO L87 Difference]: Start difference. First operand has 112 states, 61 states have (on average 1.8032786885245902) internal successors, (110), 103 states have internal predecessors, (110), 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) 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:28:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:28:58,171 INFO L93 Difference]: Finished difference Result 220 states and 245 transitions. [2025-03-09 02:28:58,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:28:58,173 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2025-03-09 02:28:58,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:28:58,178 INFO L225 Difference]: With dead ends: 220 [2025-03-09 02:28:58,178 INFO L226 Difference]: Without dead ends: 105 [2025-03-09 02:28:58,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:28:58,184 INFO L435 NwaCegarLoop]: 118 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, 118 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 [2025-03-09 02:28:58,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:28:58,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2025-03-09 02:28:58,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2025-03-09 02:28:58,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-09 02:28:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2025-03-09 02:28:58,224 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2025-03-09 02:28:58,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:28:58,225 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2025-03-09 02:28:58,225 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, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:28:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2025-03-09 02:28:58,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-09 02:28:58,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:28:58,227 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:28:58,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 02:28:58,428 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 [2025-03-09 02:28:58,432 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:28:58,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:28:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1810419568, now seen corresponding path program 1 times [2025-03-09 02:28:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:28:58,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698565165] [2025-03-09 02:28:58,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:58,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:28:58,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:28:58,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:28:58,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:58,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:28:58,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103234069] [2025-03-09 02:28:58,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:58,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:28:58,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:28:58,481 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) [2025-03-09 02:28:58,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:28:58,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:28:58,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:28:58,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:58,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:28:58,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 02:28:58,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:28:58,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:28:58,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:28:58,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:28:58,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698565165] [2025-03-09 02:28:58,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:28:58,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103234069] [2025-03-09 02:28:58,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103234069] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:28:58,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:28:58,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:28:58,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683925128] [2025-03-09 02:28:58,779 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:28:58,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:28:58,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:28:58,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:28:58,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:28:58,781 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:28:59,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:28:59,093 INFO L93 Difference]: Finished difference Result 142 states and 166 transitions. [2025-03-09 02:28:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:28:59,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2025-03-09 02:28:59,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:28:59,095 INFO L225 Difference]: With dead ends: 142 [2025-03-09 02:28:59,095 INFO L226 Difference]: Without dead ends: 133 [2025-03-09 02:28:59,095 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:28:59,096 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 282 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:28:59,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 206 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:28:59,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-03-09 02:28:59,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 126. [2025-03-09 02:28:59,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 77 states have (on average 1.7142857142857142) internal successors, (132), 116 states have internal predecessors, (132), 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) [2025-03-09 02:28:59,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2025-03-09 02:28:59,109 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 20 [2025-03-09 02:28:59,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:28:59,110 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2025-03-09 02:28:59,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:28:59,110 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2025-03-09 02:28:59,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-09 02:28:59,110 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:28:59,110 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:28:59,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 02:28:59,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-09 02:28:59,311 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:28:59,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:28:59,311 INFO L85 PathProgramCache]: Analyzing trace with hash 288431824, now seen corresponding path program 1 times [2025-03-09 02:28:59,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:28:59,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461664682] [2025-03-09 02:28:59,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:59,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:28:59,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:28:59,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:28:59,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:59,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:28:59,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1812585154] [2025-03-09 02:28:59,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:59,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:28:59,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:28:59,328 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) [2025-03-09 02:28:59,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:28:59,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:28:59,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:28:59,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:59,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:28:59,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-09 02:28:59,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:28:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:28:59,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:28:59,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:28:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461664682] [2025-03-09 02:28:59,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:28:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812585154] [2025-03-09 02:28:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812585154] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:28:59,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:28:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:28:59,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662774058] [2025-03-09 02:28:59,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:28:59,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:28:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:28:59,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:28:59,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:28:59,458 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:28:59,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:28:59,692 INFO L93 Difference]: Finished difference Result 171 states and 211 transitions. [2025-03-09 02:28:59,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:28:59,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2025-03-09 02:28:59,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:28:59,694 INFO L225 Difference]: With dead ends: 171 [2025-03-09 02:28:59,694 INFO L226 Difference]: Without dead ends: 153 [2025-03-09 02:28:59,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:28:59,695 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 430 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:28:59,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 188 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:28:59,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-09 02:28:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2025-03-09 02:28:59,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.6274509803921569) internal successors, (166), 139 states have internal predecessors, (166), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:28:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2025-03-09 02:28:59,708 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 21 [2025-03-09 02:28:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:28:59,709 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2025-03-09 02:28:59,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:28:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2025-03-09 02:28:59,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 02:28:59,709 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:28:59,709 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:28:59,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 02:28:59,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:28:59,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:28:59,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:28:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 351452014, now seen corresponding path program 1 times [2025-03-09 02:28:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:28:59,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88143592] [2025-03-09 02:28:59,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:59,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:28:59,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:28:59,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:28:59,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:59,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:28:59,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1499573132] [2025-03-09 02:28:59,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:28:59,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:28:59,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:28:59,924 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) [2025-03-09 02:28:59,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 02:28:59,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 02:28:59,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 02:28:59,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:28:59,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:28:59,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-09 02:28:59,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:00,051 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:00,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:00,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88143592] [2025-03-09 02:29:00,161 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:00,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499573132] [2025-03-09 02:29:00,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499573132] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:00,161 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:00,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:29:00,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318579554] [2025-03-09 02:29:00,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:00,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:00,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:00,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:00,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:29:00,162 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:00,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:00,397 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2025-03-09 02:29:00,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:00,397 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2025-03-09 02:29:00,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:00,398 INFO L225 Difference]: With dead ends: 158 [2025-03-09 02:29:00,400 INFO L226 Difference]: Without dead ends: 157 [2025-03-09 02:29:00,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:00,400 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 134 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:00,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 243 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-09 02:29:00,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2025-03-09 02:29:00,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.6176470588235294) internal successors, (165), 139 states have internal predecessors, (165), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:29:00,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 181 transitions. [2025-03-09 02:29:00,413 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 181 transitions. Word has length 22 [2025-03-09 02:29:00,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:00,414 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 181 transitions. [2025-03-09 02:29:00,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 02:29:00,415 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 181 transitions. [2025-03-09 02:29:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-03-09 02:29:00,416 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:00,416 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:00,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:00,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:00,616 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:00,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:00,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1989889394, now seen corresponding path program 1 times [2025-03-09 02:29:00,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:00,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110958048] [2025-03-09 02:29:00,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:00,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:00,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:29:00,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:29:00,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:00,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:00,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2117099385] [2025-03-09 02:29:00,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:00,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:00,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:00,629 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) [2025-03-09 02:29:00,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 02:29:00,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-09 02:29:00,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-09 02:29:00,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:00,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:00,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:29:00,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:00,777 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:00,777 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:00,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:00,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110958048] [2025-03-09 02:29:00,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:00,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117099385] [2025-03-09 02:29:00,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117099385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:00,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:00,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:29:00,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899985482] [2025-03-09 02:29:00,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:00,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:00,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:00,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:00,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:29:00,779 INFO L87 Difference]: Start difference. First operand 150 states and 181 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:29:00,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:00,973 INFO L93 Difference]: Finished difference Result 158 states and 188 transitions. [2025-03-09 02:29:00,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:00,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2025-03-09 02:29:00,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:00,974 INFO L225 Difference]: With dead ends: 158 [2025-03-09 02:29:00,974 INFO L226 Difference]: Without dead ends: 157 [2025-03-09 02:29:00,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:29:00,975 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 132 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:00,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 246 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:00,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2025-03-09 02:29:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2025-03-09 02:29:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.607843137254902) internal successors, (164), 139 states have internal predecessors, (164), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-09 02:29:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 180 transitions. [2025-03-09 02:29:00,984 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 180 transitions. Word has length 23 [2025-03-09 02:29:00,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:00,984 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 180 transitions. [2025-03-09 02:29:00,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 02:29:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 180 transitions. [2025-03-09 02:29:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-03-09 02:29:00,985 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:00,985 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:00,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:01,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:01,189 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:01,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:01,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1557029012, now seen corresponding path program 1 times [2025-03-09 02:29:01,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:01,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930737697] [2025-03-09 02:29:01,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:01,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:01,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-09 02:29:01,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-09 02:29:01,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:01,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:01,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:01,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930737697] [2025-03-09 02:29:01,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930737697] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:01,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:01,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:01,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421112050] [2025-03-09 02:29:01,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:01,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:01,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:01,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:01,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:01,282 INFO L87 Difference]: Start difference. First operand 150 states and 180 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:29:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:01,503 INFO L93 Difference]: Finished difference Result 242 states and 288 transitions. [2025-03-09 02:29:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:01,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2025-03-09 02:29:01,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:01,505 INFO L225 Difference]: With dead ends: 242 [2025-03-09 02:29:01,505 INFO L226 Difference]: Without dead ends: 241 [2025-03-09 02:29:01,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:01,506 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 93 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:01,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 165 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:01,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-09 02:29:01,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 170. [2025-03-09 02:29:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.6115702479338843) internal successors, (195), 158 states have internal predecessors, (195), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:29:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 213 transitions. [2025-03-09 02:29:01,523 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 213 transitions. Word has length 24 [2025-03-09 02:29:01,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:01,523 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 213 transitions. [2025-03-09 02:29:01,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:29:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 213 transitions. [2025-03-09 02:29:01,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:29:01,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:01,524 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:01,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 02:29:01,524 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:01,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:01,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1023259060, now seen corresponding path program 1 times [2025-03-09 02:29:01,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:01,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118107077] [2025-03-09 02:29:01,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:01,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:01,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:29:01,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:29:01,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:01,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:01,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:01,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118107077] [2025-03-09 02:29:01,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118107077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:01,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:01,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:01,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762815586] [2025-03-09 02:29:01,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:01,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:01,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:01,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:01,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:01,587 INFO L87 Difference]: Start difference. First operand 170 states and 213 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:29:01,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:01,861 INFO L93 Difference]: Finished difference Result 242 states and 286 transitions. [2025-03-09 02:29:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:01,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2025-03-09 02:29:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:01,862 INFO L225 Difference]: With dead ends: 242 [2025-03-09 02:29:01,862 INFO L226 Difference]: Without dead ends: 241 [2025-03-09 02:29:01,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:01,863 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 91 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:01,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 151 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2025-03-09 02:29:01,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 170. [2025-03-09 02:29:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.5950413223140496) internal successors, (193), 158 states have internal predecessors, (193), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:29:01,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 211 transitions. [2025-03-09 02:29:01,870 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 211 transitions. Word has length 25 [2025-03-09 02:29:01,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:01,870 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 211 transitions. [2025-03-09 02:29:01,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:29:01,870 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 211 transitions. [2025-03-09 02:29:01,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 02:29:01,871 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:01,871 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:01,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 02:29:01,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:01,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:01,871 INFO L85 PathProgramCache]: Analyzing trace with hash 567109450, now seen corresponding path program 1 times [2025-03-09 02:29:01,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:01,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819974024] [2025-03-09 02:29:01,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:01,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:01,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:29:01,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:29:01,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:01,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:01,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314572490] [2025-03-09 02:29:01,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:01,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:01,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:01,905 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) [2025-03-09 02:29:01,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 02:29:01,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 02:29:01,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 02:29:01,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:01,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:01,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:01,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:02,016 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:02,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:02,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819974024] [2025-03-09 02:29:02,016 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:02,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314572490] [2025-03-09 02:29:02,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314572490] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:02,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:02,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:02,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899897940] [2025-03-09 02:29:02,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:02,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:02,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:02,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:02,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:02,018 INFO L87 Difference]: Start difference. First operand 170 states and 211 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:02,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:02,144 INFO L93 Difference]: Finished difference Result 180 states and 219 transitions. [2025-03-09 02:29:02,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:02,145 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2025-03-09 02:29:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:02,146 INFO L225 Difference]: With dead ends: 180 [2025-03-09 02:29:02,146 INFO L226 Difference]: Without dead ends: 177 [2025-03-09 02:29:02,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:02,146 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 155 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:02,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 113 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:02,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2025-03-09 02:29:02,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2025-03-09 02:29:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 125 states have (on average 1.568) internal successors, (196), 162 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:29:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2025-03-09 02:29:02,152 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 38 [2025-03-09 02:29:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:02,153 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2025-03-09 02:29:02,153 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:02,153 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2025-03-09 02:29:02,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 02:29:02,154 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:02,154 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:02,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 02:29:02,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:02,355 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:02,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash 400523765, now seen corresponding path program 1 times [2025-03-09 02:29:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:02,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392252237] [2025-03-09 02:29:02,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:02,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:02,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:02,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:02,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:02,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:02,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029427607] [2025-03-09 02:29:02,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:02,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:02,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:02,381 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) [2025-03-09 02:29:02,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 02:29:02,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:02,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:02,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:02,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:02,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:02,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:02,475 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:02,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:02,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:02,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392252237] [2025-03-09 02:29:02,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:02,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029427607] [2025-03-09 02:29:02,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029427607] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:02,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:02,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:02,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573197692] [2025-03-09 02:29:02,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:02,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:02,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:02,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:02,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:02,476 INFO L87 Difference]: Start difference. First operand 174 states and 214 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:02,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:02,657 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2025-03-09 02:29:02,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:02,657 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2025-03-09 02:29:02,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:02,658 INFO L225 Difference]: With dead ends: 234 [2025-03-09 02:29:02,658 INFO L226 Difference]: Without dead ends: 228 [2025-03-09 02:29:02,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:02,659 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 187 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:02,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 100 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:02,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2025-03-09 02:29:02,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 212. [2025-03-09 02:29:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 162 states have (on average 1.6419753086419753) internal successors, (266), 199 states have internal predecessors, (266), 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) [2025-03-09 02:29:02,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 286 transitions. [2025-03-09 02:29:02,666 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 286 transitions. Word has length 39 [2025-03-09 02:29:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:02,666 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 286 transitions. [2025-03-09 02:29:02,666 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 286 transitions. [2025-03-09 02:29:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 02:29:02,667 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:02,667 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:02,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:02,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:02,868 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:02,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:02,868 INFO L85 PathProgramCache]: Analyzing trace with hash 402593246, now seen corresponding path program 1 times [2025-03-09 02:29:02,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:02,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405160788] [2025-03-09 02:29:02,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:02,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:02,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:02,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:02,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:02,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:02,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261725902] [2025-03-09 02:29:02,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:02,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:02,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:02,893 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) [2025-03-09 02:29:02,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 02:29:02,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 02:29:02,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 02:29:02,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:02,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:02,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:02,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:02,970 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:02,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:02,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405160788] [2025-03-09 02:29:02,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:02,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261725902] [2025-03-09 02:29:02,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261725902] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:02,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:02,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:02,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641095215] [2025-03-09 02:29:02,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:02,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:02,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:02,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:02,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:02,971 INFO L87 Difference]: Start difference. First operand 212 states and 286 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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) [2025-03-09 02:29:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:03,097 INFO L93 Difference]: Finished difference Result 255 states and 348 transitions. [2025-03-09 02:29:03,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:03,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 39 [2025-03-09 02:29:03,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:03,100 INFO L225 Difference]: With dead ends: 255 [2025-03-09 02:29:03,100 INFO L226 Difference]: Without dead ends: 251 [2025-03-09 02:29:03,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:03,100 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 144 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:03,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 118 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:03,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2025-03-09 02:29:03,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 235. [2025-03-09 02:29:03,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 184 states have (on average 1.641304347826087) internal successors, (302), 221 states have internal predecessors, (302), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 324 transitions. [2025-03-09 02:29:03,107 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 324 transitions. Word has length 39 [2025-03-09 02:29:03,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:03,108 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 324 transitions. [2025-03-09 02:29:03,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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) [2025-03-09 02:29:03,108 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 324 transitions. [2025-03-09 02:29:03,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:29:03,108 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:03,108 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:03,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:03,309 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,SelfDestructingSolverStorable9 [2025-03-09 02:29:03,309 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:03,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:03,310 INFO L85 PathProgramCache]: Analyzing trace with hash -468665176, now seen corresponding path program 1 times [2025-03-09 02:29:03,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:03,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682782617] [2025-03-09 02:29:03,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:03,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:03,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:29:03,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:29:03,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:03,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:03,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:03,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:03,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682782617] [2025-03-09 02:29:03,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682782617] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:03,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:03,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:03,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016111185] [2025-03-09 02:29:03,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:03,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:03,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:03,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:03,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:03,403 INFO L87 Difference]: Start difference. First operand 235 states and 324 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-09 02:29:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:03,541 INFO L93 Difference]: Finished difference Result 318 states and 417 transitions. [2025-03-09 02:29:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:03,542 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), 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 40 [2025-03-09 02:29:03,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:03,543 INFO L225 Difference]: With dead ends: 318 [2025-03-09 02:29:03,543 INFO L226 Difference]: Without dead ends: 317 [2025-03-09 02:29:03,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:03,543 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 62 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:03,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 197 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2025-03-09 02:29:03,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 245. [2025-03-09 02:29:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.634020618556701) internal successors, (317), 231 states have internal predecessors, (317), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:03,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 339 transitions. [2025-03-09 02:29:03,554 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 339 transitions. Word has length 40 [2025-03-09 02:29:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:03,554 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 339 transitions. [2025-03-09 02:29:03,554 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), 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) [2025-03-09 02:29:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 339 transitions. [2025-03-09 02:29:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:29:03,554 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:03,555 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:03,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 02:29:03,555 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:03,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:03,555 INFO L85 PathProgramCache]: Analyzing trace with hash -404511251, now seen corresponding path program 1 times [2025-03-09 02:29:03,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:03,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435150263] [2025-03-09 02:29:03,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:03,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:03,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:29:03,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:29:03,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:03,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:03,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1615942013] [2025-03-09 02:29:03,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:03,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:03,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:03,579 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) [2025-03-09 02:29:03,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 02:29:03,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:29:03,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:29:03,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:03,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:03,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:29:03,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:03,672 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:03,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:03,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435150263] [2025-03-09 02:29:03,672 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:03,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615942013] [2025-03-09 02:29:03,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615942013] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:03,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:03,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:03,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003940106] [2025-03-09 02:29:03,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:03,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:03,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:03,673 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:03,673 INFO L87 Difference]: Start difference. First operand 245 states and 339 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2025-03-09 02:29:03,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:03,811 INFO L93 Difference]: Finished difference Result 257 states and 346 transitions. [2025-03-09 02:29:03,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:03,811 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), 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 40 [2025-03-09 02:29:03,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:03,812 INFO L225 Difference]: With dead ends: 257 [2025-03-09 02:29:03,812 INFO L226 Difference]: Without dead ends: 253 [2025-03-09 02:29:03,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:29:03,813 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 194 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:03,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 84 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:03,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-03-09 02:29:03,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 245. [2025-03-09 02:29:03,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.6082474226804124) internal successors, (312), 231 states have internal predecessors, (312), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:03,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2025-03-09 02:29:03,820 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 40 [2025-03-09 02:29:03,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:03,820 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2025-03-09 02:29:03,820 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), 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) [2025-03-09 02:29:03,821 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2025-03-09 02:29:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:03,821 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:03,821 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:03,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 02:29:04,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:04,022 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:04,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:04,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1588718933, now seen corresponding path program 1 times [2025-03-09 02:29:04,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:04,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552931216] [2025-03-09 02:29:04,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:04,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:04,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:04,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:04,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:04,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:04,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473275333] [2025-03-09 02:29:04,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:04,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:04,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:04,055 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) [2025-03-09 02:29:04,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-09 02:29:04,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:04,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:04,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:04,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:04,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-09 02:29:04,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-09 02:29:04,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:09,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:09,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552931216] [2025-03-09 02:29:09,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:09,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473275333] [2025-03-09 02:29:09,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473275333] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:09,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:09,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:09,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813411630] [2025-03-09 02:29:09,281 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:09,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:09,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:09,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:09,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=115, Unknown=1, NotChecked=0, Total=156 [2025-03-09 02:29:09,281 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 9 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:09,532 INFO L93 Difference]: Finished difference Result 266 states and 353 transitions. [2025-03-09 02:29:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:09,532 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2025-03-09 02:29:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:09,533 INFO L225 Difference]: With dead ends: 266 [2025-03-09 02:29:09,533 INFO L226 Difference]: Without dead ends: 259 [2025-03-09 02:29:09,534 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=73, Invalid=166, Unknown=1, NotChecked=0, Total=240 [2025-03-09 02:29:09,535 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 263 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:09,535 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 247 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:09,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2025-03-09 02:29:09,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 252. [2025-03-09 02:29:09,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 200 states have (on average 1.575) internal successors, (315), 237 states have internal predecessors, (315), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 339 transitions. [2025-03-09 02:29:09,544 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 339 transitions. Word has length 41 [2025-03-09 02:29:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:09,544 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 339 transitions. [2025-03-09 02:29:09,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 339 transitions. [2025-03-09 02:29:09,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:09,545 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:09,545 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:09,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-09 02:29:09,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 02:29:09,746 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:09,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:09,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1643718573, now seen corresponding path program 1 times [2025-03-09 02:29:09,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:09,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831439240] [2025-03-09 02:29:09,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:09,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:09,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:09,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:09,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:09,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:09,825 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:09,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:09,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831439240] [2025-03-09 02:29:09,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831439240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:09,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:09,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:09,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969146602] [2025-03-09 02:29:09,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:09,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:09,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:09,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:09,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:09,826 INFO L87 Difference]: Start difference. First operand 252 states and 339 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-09 02:29:10,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:10,129 INFO L93 Difference]: Finished difference Result 311 states and 402 transitions. [2025-03-09 02:29:10,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:10,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 41 [2025-03-09 02:29:10,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:10,131 INFO L225 Difference]: With dead ends: 311 [2025-03-09 02:29:10,131 INFO L226 Difference]: Without dead ends: 310 [2025-03-09 02:29:10,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:10,132 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 53 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:10,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 231 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:10,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-03-09 02:29:10,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 254. [2025-03-09 02:29:10,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 202 states have (on average 1.5693069306930694) internal successors, (317), 239 states have internal predecessors, (317), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:10,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 341 transitions. [2025-03-09 02:29:10,139 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 341 transitions. Word has length 41 [2025-03-09 02:29:10,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:10,139 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 341 transitions. [2025-03-09 02:29:10,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-09 02:29:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 341 transitions. [2025-03-09 02:29:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:10,139 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:10,139 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:10,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-09 02:29:10,140 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:10,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:10,140 INFO L85 PathProgramCache]: Analyzing trace with hash 345053116, now seen corresponding path program 1 times [2025-03-09 02:29:10,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:10,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822635305] [2025-03-09 02:29:10,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:10,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:10,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:10,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:10,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:10,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:10,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:10,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:10,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822635305] [2025-03-09 02:29:10,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822635305] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:10,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447909612] [2025-03-09 02:29:10,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:10,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:10,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:10,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:10,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:10,199 INFO L87 Difference]: Start difference. First operand 254 states and 341 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-09 02:29:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:10,314 INFO L93 Difference]: Finished difference Result 311 states and 400 transitions. [2025-03-09 02:29:10,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:10,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 41 [2025-03-09 02:29:10,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:10,316 INFO L225 Difference]: With dead ends: 311 [2025-03-09 02:29:10,316 INFO L226 Difference]: Without dead ends: 310 [2025-03-09 02:29:10,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:10,317 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 54 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:10,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 205 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-03-09 02:29:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 262. [2025-03-09 02:29:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 210 states have (on average 1.561904761904762) internal successors, (328), 247 states have internal predecessors, (328), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 352 transitions. [2025-03-09 02:29:10,327 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 352 transitions. Word has length 41 [2025-03-09 02:29:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:10,327 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 352 transitions. [2025-03-09 02:29:10,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2025-03-09 02:29:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 352 transitions. [2025-03-09 02:29:10,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-03-09 02:29:10,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:10,328 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:10,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-09 02:29:10,328 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:10,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 396585587, now seen corresponding path program 1 times [2025-03-09 02:29:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785440120] [2025-03-09 02:29:10,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:10,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-09 02:29:10,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-09 02:29:10,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:10,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:10,414 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:10,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:10,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785440120] [2025-03-09 02:29:10,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785440120] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:10,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:10,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:10,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201944428] [2025-03-09 02:29:10,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:10,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:10,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:10,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:10,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:10,416 INFO L87 Difference]: Start difference. First operand 262 states and 352 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:10,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:10,762 INFO L93 Difference]: Finished difference Result 356 states and 503 transitions. [2025-03-09 02:29:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:10,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2025-03-09 02:29:10,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:10,764 INFO L225 Difference]: With dead ends: 356 [2025-03-09 02:29:10,764 INFO L226 Difference]: Without dead ends: 354 [2025-03-09 02:29:10,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:10,765 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 490 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:10,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 110 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:10,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2025-03-09 02:29:10,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 268. [2025-03-09 02:29:10,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 216 states have (on average 1.5509259259259258) internal successors, (335), 253 states have internal predecessors, (335), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:10,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 359 transitions. [2025-03-09 02:29:10,773 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 359 transitions. Word has length 41 [2025-03-09 02:29:10,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:10,774 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 359 transitions. [2025-03-09 02:29:10,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:10,774 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 359 transitions. [2025-03-09 02:29:10,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:29:10,774 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:10,774 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:10,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-09 02:29:10,775 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:10,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2005646731, now seen corresponding path program 1 times [2025-03-09 02:29:10,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:10,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577470064] [2025-03-09 02:29:10,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:10,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:10,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:10,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:10,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:10,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:10,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277858189] [2025-03-09 02:29:10,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:10,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:10,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:10,789 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) [2025-03-09 02:29:10,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-09 02:29:10,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:10,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:10,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:10,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:10,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-09 02:29:10,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:11,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:16,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577470064] [2025-03-09 02:29:16,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:16,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277858189] [2025-03-09 02:29:16,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277858189] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:16,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:16,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:29:16,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772603641] [2025-03-09 02:29:16,124 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:16,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:29:16,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:16,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:29:16,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:29:16,125 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:17,994 INFO L93 Difference]: Finished difference Result 425 states and 573 transitions. [2025-03-09 02:29:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-09 02:29:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2025-03-09 02:29:17,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:17,996 INFO L225 Difference]: With dead ends: 425 [2025-03-09 02:29:17,997 INFO L226 Difference]: Without dead ends: 322 [2025-03-09 02:29:17,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2025-03-09 02:29:17,999 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 410 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:17,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 292 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-09 02:29:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2025-03-09 02:29:18,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 318. [2025-03-09 02:29:18,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 266 states have (on average 1.4586466165413534) internal successors, (388), 303 states have internal predecessors, (388), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:18,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 412 transitions. [2025-03-09 02:29:18,012 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 412 transitions. Word has length 42 [2025-03-09 02:29:18,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:18,013 INFO L471 AbstractCegarLoop]: Abstraction has 318 states and 412 transitions. [2025-03-09 02:29:18,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 412 transitions. [2025-03-09 02:29:18,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:29:18,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:18,014 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:18,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-09 02:29:18,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-09 02:29:18,222 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:18,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash 2106712011, now seen corresponding path program 1 times [2025-03-09 02:29:18,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:18,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539970308] [2025-03-09 02:29:18,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:18,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:18,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:18,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:18,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:18,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:18,309 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:18,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:18,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539970308] [2025-03-09 02:29:18,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539970308] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:18,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:18,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:18,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903472514] [2025-03-09 02:29:18,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:18,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:18,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:18,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:18,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:18,310 INFO L87 Difference]: Start difference. First operand 318 states and 412 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:18,639 INFO L93 Difference]: Finished difference Result 349 states and 446 transitions. [2025-03-09 02:29:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:18,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2025-03-09 02:29:18,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:18,641 INFO L225 Difference]: With dead ends: 349 [2025-03-09 02:29:18,641 INFO L226 Difference]: Without dead ends: 348 [2025-03-09 02:29:18,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:18,641 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 36 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:18,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 219 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:18,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-03-09 02:29:18,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 320. [2025-03-09 02:29:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 268 states have (on average 1.455223880597015) internal successors, (390), 305 states have internal predecessors, (390), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 414 transitions. [2025-03-09 02:29:18,657 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 414 transitions. Word has length 42 [2025-03-09 02:29:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:18,657 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 414 transitions. [2025-03-09 02:29:18,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 414 transitions. [2025-03-09 02:29:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:29:18,658 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:18,658 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:18,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-09 02:29:18,659 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:18,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash -590748660, now seen corresponding path program 1 times [2025-03-09 02:29:18,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:18,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406342631] [2025-03-09 02:29:18,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:18,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:18,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:29:18,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:29:18,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:18,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:18,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:18,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406342631] [2025-03-09 02:29:18,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406342631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:18,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:18,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:18,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54637877] [2025-03-09 02:29:18,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:18,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:18,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:18,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:18,745 INFO L87 Difference]: Start difference. First operand 320 states and 414 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:18,936 INFO L93 Difference]: Finished difference Result 327 states and 421 transitions. [2025-03-09 02:29:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:18,937 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2025-03-09 02:29:18,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:18,938 INFO L225 Difference]: With dead ends: 327 [2025-03-09 02:29:18,938 INFO L226 Difference]: Without dead ends: 325 [2025-03-09 02:29:18,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:18,938 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 381 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:18,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 88 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2025-03-09 02:29:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 320. [2025-03-09 02:29:18,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 268 states have (on average 1.4440298507462686) internal successors, (387), 305 states have internal predecessors, (387), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:18,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 411 transitions. [2025-03-09 02:29:18,947 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 411 transitions. Word has length 42 [2025-03-09 02:29:18,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:18,947 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 411 transitions. [2025-03-09 02:29:18,947 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:18,947 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 411 transitions. [2025-03-09 02:29:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-09 02:29:18,947 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:18,947 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:18,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-09 02:29:18,948 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:18,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:18,948 INFO L85 PathProgramCache]: Analyzing trace with hash 883562967, now seen corresponding path program 1 times [2025-03-09 02:29:18,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:18,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904199363] [2025-03-09 02:29:18,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:18,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:18,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:29:18,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:29:18,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:18,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:18,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383616754] [2025-03-09 02:29:18,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:18,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:18,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:18,958 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) [2025-03-09 02:29:18,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-09 02:29:18,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:29:18,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:29:18,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:18,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:18,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:29:18,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:19,105 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:19,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904199363] [2025-03-09 02:29:19,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383616754] [2025-03-09 02:29:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383616754] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:19,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:19,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:19,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128605674] [2025-03-09 02:29:19,179 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:19,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:19,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:19,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:19,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:29:19,180 INFO L87 Difference]: Start difference. First operand 320 states and 411 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:19,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:19,520 INFO L93 Difference]: Finished difference Result 381 states and 499 transitions. [2025-03-09 02:29:19,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:19,521 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2025-03-09 02:29:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:19,522 INFO L225 Difference]: With dead ends: 381 [2025-03-09 02:29:19,522 INFO L226 Difference]: Without dead ends: 373 [2025-03-09 02:29:19,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:29:19,523 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 299 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:19,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 247 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:19,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-03-09 02:29:19,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 347. [2025-03-09 02:29:19,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 293 states have (on average 1.447098976109215) internal successors, (424), 330 states have internal predecessors, (424), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 452 transitions. [2025-03-09 02:29:19,533 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 452 transitions. Word has length 43 [2025-03-09 02:29:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:19,533 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 452 transitions. [2025-03-09 02:29:19,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 452 transitions. [2025-03-09 02:29:19,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:29:19,533 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:19,533 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] [2025-03-09 02:29:19,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-09 02:29:19,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:19,734 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:19,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:19,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1013805431, now seen corresponding path program 1 times [2025-03-09 02:29:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:19,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381574484] [2025-03-09 02:29:19,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:19,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:19,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:19,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:19,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:19,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202032776] [2025-03-09 02:29:19,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:19,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:19,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:19,748 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) [2025-03-09 02:29:19,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-09 02:29:19,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:19,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:19,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:19,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:19,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-09 02:29:19,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:20,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:20,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:20,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381574484] [2025-03-09 02:29:20,879 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:20,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202032776] [2025-03-09 02:29:20,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202032776] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:20,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:20,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:29:20,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347108594] [2025-03-09 02:29:20,880 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:20,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:29:20,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:20,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:29:20,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:29:20,881 INFO L87 Difference]: Start difference. First operand 347 states and 452 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:21,495 INFO L93 Difference]: Finished difference Result 395 states and 512 transitions. [2025-03-09 02:29:21,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:29:21,495 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2025-03-09 02:29:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:21,496 INFO L225 Difference]: With dead ends: 395 [2025-03-09 02:29:21,496 INFO L226 Difference]: Without dead ends: 394 [2025-03-09 02:29:21,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2025-03-09 02:29:21,497 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 331 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:21,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 260 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:29:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2025-03-09 02:29:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 355. [2025-03-09 02:29:21,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 301 states have (on average 1.4318936877076411) internal successors, (431), 338 states have internal predecessors, (431), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:21,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 459 transitions. [2025-03-09 02:29:21,514 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 459 transitions. Word has length 44 [2025-03-09 02:29:21,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:21,515 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 459 transitions. [2025-03-09 02:29:21,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:21,515 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 459 transitions. [2025-03-09 02:29:21,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:29:21,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:21,516 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:21,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-09 02:29:21,719 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,SelfDestructingSolverStorable20 [2025-03-09 02:29:21,720 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:21,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:21,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1620648265, now seen corresponding path program 1 times [2025-03-09 02:29:21,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:21,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792822790] [2025-03-09 02:29:21,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:21,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:21,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:21,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:21,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:21,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:21,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600309255] [2025-03-09 02:29:21,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:21,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:21,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:21,734 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) [2025-03-09 02:29:21,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-09 02:29:21,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:29:21,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:29:21,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:21,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:21,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:29:21,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:22,711 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:22,712 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:23,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792822790] [2025-03-09 02:29:23,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:23,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600309255] [2025-03-09 02:29:23,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600309255] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:23,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:23,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:29:23,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890611004] [2025-03-09 02:29:23,104 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:23,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:29:23,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:23,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:29:23,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:29:23,104 INFO L87 Difference]: Start difference. First operand 355 states and 459 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:27,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:29:27,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:27,989 INFO L93 Difference]: Finished difference Result 418 states and 548 transitions. [2025-03-09 02:29:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-03-09 02:29:27,992 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2025-03-09 02:29:27,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:27,994 INFO L225 Difference]: With dead ends: 418 [2025-03-09 02:29:27,994 INFO L226 Difference]: Without dead ends: 409 [2025-03-09 02:29:27,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:29:27,995 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 229 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:27,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 307 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2025-03-09 02:29:27,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2025-03-09 02:29:28,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 389. [2025-03-09 02:29:28,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 334 states have (on average 1.4281437125748504) internal successors, (477), 371 states have internal predecessors, (477), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:28,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 507 transitions. [2025-03-09 02:29:28,008 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 507 transitions. Word has length 44 [2025-03-09 02:29:28,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:28,008 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 507 transitions. [2025-03-09 02:29:28,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 507 transitions. [2025-03-09 02:29:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:29:28,008 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:28,009 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:28,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:28,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:28,213 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:28,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:28,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1299511275, now seen corresponding path program 1 times [2025-03-09 02:29:28,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:28,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095263225] [2025-03-09 02:29:28,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:28,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:28,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:28,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:28,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:28,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:28,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475218553] [2025-03-09 02:29:28,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:28,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:28,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:28,226 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) [2025-03-09 02:29:28,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-09 02:29:28,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:28,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:28,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:28,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:28,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:29:28,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:28,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:32,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:32,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095263225] [2025-03-09 02:29:32,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:32,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475218553] [2025-03-09 02:29:32,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475218553] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:32,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:32,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231169142] [2025-03-09 02:29:32,622 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:32,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:32,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:32,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:32,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2025-03-09 02:29:32,623 INFO L87 Difference]: Start difference. First operand 389 states and 507 transitions. Second operand has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:32,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:32,966 INFO L93 Difference]: Finished difference Result 410 states and 533 transitions. [2025-03-09 02:29:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:32,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2025-03-09 02:29:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:32,967 INFO L225 Difference]: With dead ends: 410 [2025-03-09 02:29:32,967 INFO L226 Difference]: Without dead ends: 407 [2025-03-09 02:29:32,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=73, Invalid=198, Unknown=1, NotChecked=0, Total=272 [2025-03-09 02:29:32,968 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 286 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:32,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 245 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:32,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-03-09 02:29:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 366. [2025-03-09 02:29:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 312 states have (on average 1.4070512820512822) internal successors, (439), 349 states have internal predecessors, (439), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:32,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 467 transitions. [2025-03-09 02:29:32,979 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 467 transitions. Word has length 45 [2025-03-09 02:29:32,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:32,980 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 467 transitions. [2025-03-09 02:29:32,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 467 transitions. [2025-03-09 02:29:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:29:32,980 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:32,980 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:32,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:33,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:33,182 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:33,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:33,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1782677679, now seen corresponding path program 1 times [2025-03-09 02:29:33,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:33,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306578448] [2025-03-09 02:29:33,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:33,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:33,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:33,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:33,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:33,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:33,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197573449] [2025-03-09 02:29:33,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:33,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:33,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:33,201 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) [2025-03-09 02:29:33,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-09 02:29:33,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:29:33,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:29:33,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:33,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:33,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:29:33,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:33,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:33,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306578448] [2025-03-09 02:29:33,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197573449] [2025-03-09 02:29:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197573449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:33,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:33,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:33,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653878358] [2025-03-09 02:29:33,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:33,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:33,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:33,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:33,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:33,338 INFO L87 Difference]: Start difference. First operand 366 states and 467 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:33,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:33,607 INFO L93 Difference]: Finished difference Result 456 states and 601 transitions. [2025-03-09 02:29:33,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:33,607 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2025-03-09 02:29:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:33,609 INFO L225 Difference]: With dead ends: 456 [2025-03-09 02:29:33,609 INFO L226 Difference]: Without dead ends: 448 [2025-03-09 02:29:33,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:29:33,609 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 219 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:33,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 107 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-03-09 02:29:33,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 397. [2025-03-09 02:29:33,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 342 states have (on average 1.4210526315789473) internal successors, (486), 379 states have internal predecessors, (486), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 516 transitions. [2025-03-09 02:29:33,630 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 516 transitions. Word has length 45 [2025-03-09 02:29:33,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:33,631 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 516 transitions. [2025-03-09 02:29:33,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:33,631 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 516 transitions. [2025-03-09 02:29:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:29:33,631 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:33,631 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:33,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-09 02:29:33,831 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,SelfDestructingSolverStorable23 [2025-03-09 02:29:33,832 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:33,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:33,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1575123659, now seen corresponding path program 1 times [2025-03-09 02:29:33,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:33,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974394063] [2025-03-09 02:29:33,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:33,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:33,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:33,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:33,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:33,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:33,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438473408] [2025-03-09 02:29:33,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:33,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:33,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:33,843 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) [2025-03-09 02:29:33,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-09 02:29:33,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:33,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:33,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:33,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:33,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:29:33,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:33,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:33,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:33,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974394063] [2025-03-09 02:29:33,985 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:33,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438473408] [2025-03-09 02:29:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438473408] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:33,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:33,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:29:33,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114499010] [2025-03-09 02:29:33,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:33,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:33,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:33,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:33,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:29:33,986 INFO L87 Difference]: Start difference. First operand 397 states and 516 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:34,178 INFO L93 Difference]: Finished difference Result 403 states and 520 transitions. [2025-03-09 02:29:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:34,178 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2025-03-09 02:29:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:34,179 INFO L225 Difference]: With dead ends: 403 [2025-03-09 02:29:34,179 INFO L226 Difference]: Without dead ends: 401 [2025-03-09 02:29:34,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:29:34,180 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:34,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 261 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2025-03-09 02:29:34,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 397. [2025-03-09 02:29:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 342 states have (on average 1.4152046783625731) internal successors, (484), 379 states have internal predecessors, (484), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 514 transitions. [2025-03-09 02:29:34,195 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 514 transitions. Word has length 46 [2025-03-09 02:29:34,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:34,195 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 514 transitions. [2025-03-09 02:29:34,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:29:34,195 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 514 transitions. [2025-03-09 02:29:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-09 02:29:34,195 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:34,195 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:34,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-09 02:29:34,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:34,396 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:34,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:34,396 INFO L85 PathProgramCache]: Analyzing trace with hash -571566776, now seen corresponding path program 1 times [2025-03-09 02:29:34,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227989019] [2025-03-09 02:29:34,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:34,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:34,398 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:34,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:34,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:34,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:34,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379044352] [2025-03-09 02:29:34,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:34,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:34,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:34,409 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) [2025-03-09 02:29:34,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-09 02:29:34,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-09 02:29:34,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-09 02:29:34,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:34,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:34,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:29:34,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:34,532 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:29:34,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:34,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227989019] [2025-03-09 02:29:34,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:34,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379044352] [2025-03-09 02:29:34,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379044352] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:34,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:34,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:29:34,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427916233] [2025-03-09 02:29:34,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:34,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:29:34,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:34,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:29:34,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:29:34,534 INFO L87 Difference]: Start difference. First operand 397 states and 514 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:34,802 INFO L93 Difference]: Finished difference Result 422 states and 545 transitions. [2025-03-09 02:29:34,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:29:34,802 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2025-03-09 02:29:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:34,803 INFO L225 Difference]: With dead ends: 422 [2025-03-09 02:29:34,804 INFO L226 Difference]: Without dead ends: 421 [2025-03-09 02:29:34,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:29:34,804 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 394 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:34,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 92 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2025-03-09 02:29:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 397. [2025-03-09 02:29:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 342 states have (on average 1.409356725146199) internal successors, (482), 379 states have internal predecessors, (482), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 512 transitions. [2025-03-09 02:29:34,819 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 512 transitions. Word has length 46 [2025-03-09 02:29:34,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:34,820 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 512 transitions. [2025-03-09 02:29:34,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 512 transitions. [2025-03-09 02:29:34,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:29:34,820 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:34,821 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:34,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-09 02:29:35,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:35,025 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:35,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:35,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1584193229, now seen corresponding path program 1 times [2025-03-09 02:29:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:35,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492286320] [2025-03-09 02:29:35,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:35,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:35,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:35,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:35,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:35,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:35,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306197250] [2025-03-09 02:29:35,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:35,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:35,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:35,047 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) [2025-03-09 02:29:35,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-09 02:29:35,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:35,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:35,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:35,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:35,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjuncts are in the unsatisfiable core [2025-03-09 02:29:35,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:35,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:35,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:35,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492286320] [2025-03-09 02:29:35,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:35,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306197250] [2025-03-09 02:29:35,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306197250] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:35,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:35,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-09 02:29:35,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16981897] [2025-03-09 02:29:35,584 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:35,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:29:35,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:35,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:29:35,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:29:35,585 INFO L87 Difference]: Start difference. First operand 397 states and 512 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:35,949 INFO L93 Difference]: Finished difference Result 675 states and 872 transitions. [2025-03-09 02:29:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:29:35,949 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 47 [2025-03-09 02:29:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:35,950 INFO L225 Difference]: With dead ends: 675 [2025-03-09 02:29:35,950 INFO L226 Difference]: Without dead ends: 393 [2025-03-09 02:29:35,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2025-03-09 02:29:35,951 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 150 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:35,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 251 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:35,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2025-03-09 02:29:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2025-03-09 02:29:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 336 states have (on average 1.4077380952380953) internal successors, (473), 373 states have internal predecessors, (473), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 503 transitions. [2025-03-09 02:29:35,965 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 503 transitions. Word has length 47 [2025-03-09 02:29:35,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:35,965 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 503 transitions. [2025-03-09 02:29:35,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:35,965 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 503 transitions. [2025-03-09 02:29:35,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:29:35,966 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:35,966 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:35,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-09 02:29:36,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:36,170 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:36,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:36,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1005149779, now seen corresponding path program 1 times [2025-03-09 02:29:36,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:36,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611341246] [2025-03-09 02:29:36,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:36,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:36,174 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:36,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:36,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:36,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:36,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473097933] [2025-03-09 02:29:36,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:36,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:36,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:36,192 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) [2025-03-09 02:29:36,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-09 02:29:36,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:36,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:36,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:36,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:36,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:29:36,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:36,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:40,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611341246] [2025-03-09 02:29:40,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:40,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473097933] [2025-03-09 02:29:40,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473097933] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:40,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:40,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:29:40,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680521783] [2025-03-09 02:29:40,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:40,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:29:40,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:40,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:29:40,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2025-03-09 02:29:40,474 INFO L87 Difference]: Start difference. First operand 391 states and 503 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:40,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:40,698 INFO L93 Difference]: Finished difference Result 426 states and 545 transitions. [2025-03-09 02:29:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:29:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2025-03-09 02:29:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:40,699 INFO L225 Difference]: With dead ends: 426 [2025-03-09 02:29:40,700 INFO L226 Difference]: Without dead ends: 424 [2025-03-09 02:29:40,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=54, Invalid=127, Unknown=1, NotChecked=0, Total=182 [2025-03-09 02:29:40,700 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 170 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:40,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 253 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:40,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2025-03-09 02:29:40,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 414. [2025-03-09 02:29:40,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 358 states have (on average 1.399441340782123) internal successors, (501), 395 states have internal predecessors, (501), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:29:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 533 transitions. [2025-03-09 02:29:40,715 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 533 transitions. Word has length 47 [2025-03-09 02:29:40,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:40,715 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 533 transitions. [2025-03-09 02:29:40,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 533 transitions. [2025-03-09 02:29:40,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-09 02:29:40,715 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:40,715 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:40,722 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-09 02:29:40,916 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,SelfDestructingSolverStorable27 [2025-03-09 02:29:40,916 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:40,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -538700851, now seen corresponding path program 1 times [2025-03-09 02:29:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767455120] [2025-03-09 02:29:40,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:40,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-09 02:29:40,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-09 02:29:40,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:40,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:40,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:40,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767455120] [2025-03-09 02:29:40,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767455120] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:40,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:40,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:40,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117447401] [2025-03-09 02:29:40,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:40,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:40,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:40,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:40,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:40,970 INFO L87 Difference]: Start difference. First operand 414 states and 533 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, (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) [2025-03-09 02:29:41,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:41,149 INFO L93 Difference]: Finished difference Result 438 states and 553 transitions. [2025-03-09 02:29:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:41,149 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, (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 47 [2025-03-09 02:29:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:41,150 INFO L225 Difference]: With dead ends: 438 [2025-03-09 02:29:41,151 INFO L226 Difference]: Without dead ends: 437 [2025-03-09 02:29:41,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:41,151 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 32 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:41,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 188 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:41,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-03-09 02:29:41,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 425. [2025-03-09 02:29:41,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 369 states have (on average 1.4010840108401084) internal successors, (517), 406 states have internal predecessors, (517), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:29:41,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 549 transitions. [2025-03-09 02:29:41,164 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 549 transitions. Word has length 47 [2025-03-09 02:29:41,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:41,164 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 549 transitions. [2025-03-09 02:29:41,165 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, (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) [2025-03-09 02:29:41,165 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 549 transitions. [2025-03-09 02:29:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-09 02:29:41,165 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:41,165 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:41,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-09 02:29:41,165 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:41,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:41,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1094872133, now seen corresponding path program 1 times [2025-03-09 02:29:41,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:41,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525197419] [2025-03-09 02:29:41,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:41,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:41,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:29:41,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:29:41,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:41,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:41,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835100417] [2025-03-09 02:29:41,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:41,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:41,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:41,175 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) [2025-03-09 02:29:41,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-09 02:29:41,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:29:41,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:29:41,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:41,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:41,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-03-09 02:29:41,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:41,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:41,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525197419] [2025-03-09 02:29:41,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:41,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835100417] [2025-03-09 02:29:41,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835100417] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:41,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:41,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525021450] [2025-03-09 02:29:41,711 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:41,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:41,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:41,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:41,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:29:41,712 INFO L87 Difference]: Start difference. First operand 425 states and 549 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:42,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:42,024 INFO L93 Difference]: Finished difference Result 443 states and 571 transitions. [2025-03-09 02:29:42,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:29:42,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2025-03-09 02:29:42,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:42,025 INFO L225 Difference]: With dead ends: 443 [2025-03-09 02:29:42,026 INFO L226 Difference]: Without dead ends: 442 [2025-03-09 02:29:42,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:29:42,026 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 262 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:42,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 259 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:42,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2025-03-09 02:29:42,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 427. [2025-03-09 02:29:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 371 states have (on average 1.398921832884097) internal successors, (519), 408 states have internal predecessors, (519), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:29:42,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 551 transitions. [2025-03-09 02:29:42,039 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 551 transitions. Word has length 48 [2025-03-09 02:29:42,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:42,040 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 551 transitions. [2025-03-09 02:29:42,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:42,040 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 551 transitions. [2025-03-09 02:29:42,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-09 02:29:42,040 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:42,040 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:42,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:42,240 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 [2025-03-09 02:29:42,241 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:42,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash 480142822, now seen corresponding path program 1 times [2025-03-09 02:29:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:42,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510566410] [2025-03-09 02:29:42,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:42,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:42,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-09 02:29:42,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-09 02:29:42,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:42,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:42,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:42,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:42,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510566410] [2025-03-09 02:29:42,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510566410] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:29:42,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:29:42,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:29:42,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438417896] [2025-03-09 02:29:42,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:29:42,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:29:42,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:42,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:29:42,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:42,290 INFO L87 Difference]: Start difference. First operand 427 states and 551 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, (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) [2025-03-09 02:29:42,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:42,420 INFO L93 Difference]: Finished difference Result 440 states and 553 transitions. [2025-03-09 02:29:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:29:42,421 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, (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 48 [2025-03-09 02:29:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:42,422 INFO L225 Difference]: With dead ends: 440 [2025-03-09 02:29:42,422 INFO L226 Difference]: Without dead ends: 439 [2025-03-09 02:29:42,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:29:42,422 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 30 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:42,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 194 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:29:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2025-03-09 02:29:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2025-03-09 02:29:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 372 states have (on average 1.3951612903225807) internal successors, (519), 409 states have internal predecessors, (519), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:29:42,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 551 transitions. [2025-03-09 02:29:42,435 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 551 transitions. Word has length 48 [2025-03-09 02:29:42,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:42,435 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 551 transitions. [2025-03-09 02:29:42,435 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, (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) [2025-03-09 02:29:42,435 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 551 transitions. [2025-03-09 02:29:42,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-09 02:29:42,435 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:42,436 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:42,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-09 02:29:42,436 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:42,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1999525660, now seen corresponding path program 1 times [2025-03-09 02:29:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:42,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665332827] [2025-03-09 02:29:42,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:42,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:42,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 02:29:42,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 02:29:42,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:42,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:42,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137270901] [2025-03-09 02:29:42,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:42,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:42,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:42,457 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) [2025-03-09 02:29:42,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-09 02:29:42,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 02:29:42,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 02:29:42,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:42,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:42,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:29:42,487 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:42,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:42,751 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:42,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:42,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665332827] [2025-03-09 02:29:42,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:42,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137270901] [2025-03-09 02:29:42,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137270901] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:29:42,751 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:29:42,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2025-03-09 02:29:42,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417223640] [2025-03-09 02:29:42,751 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:42,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-09 02:29:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:42,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-09 02:29:42,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:29:42,752 INFO L87 Difference]: Start difference. First operand 428 states and 551 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:29:43,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:43,034 INFO L93 Difference]: Finished difference Result 522 states and 708 transitions. [2025-03-09 02:29:43,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:29:43,034 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 49 [2025-03-09 02:29:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:43,036 INFO L225 Difference]: With dead ends: 522 [2025-03-09 02:29:43,036 INFO L226 Difference]: Without dead ends: 512 [2025-03-09 02:29:43,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:29:43,036 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 302 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:43,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 96 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2025-03-09 02:29:43,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 407. [2025-03-09 02:29:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 362 states have (on average 1.3453038674033149) internal successors, (487), 389 states have internal predecessors, (487), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-03-09 02:29:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 517 transitions. [2025-03-09 02:29:43,052 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 517 transitions. Word has length 49 [2025-03-09 02:29:43,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:43,052 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 517 transitions. [2025-03-09 02:29:43,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:29:43,053 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 517 transitions. [2025-03-09 02:29:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-03-09 02:29:43,053 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:43,053 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:43,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:43,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:43,254 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:43,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:43,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1855753380, now seen corresponding path program 1 times [2025-03-09 02:29:43,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:43,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496264662] [2025-03-09 02:29:43,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:43,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:43,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-09 02:29:43,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-09 02:29:43,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:43,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:43,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [864914713] [2025-03-09 02:29:43,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:43,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:43,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:43,268 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) [2025-03-09 02:29:43,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-09 02:29:43,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-09 02:29:43,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-09 02:29:43,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:43,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:43,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-03-09 02:29:43,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:43,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:44,028 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:44,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:44,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496264662] [2025-03-09 02:29:44,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:44,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864914713] [2025-03-09 02:29:44,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864914713] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:29:44,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:29:44,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2025-03-09 02:29:44,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726331861] [2025-03-09 02:29:44,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:44,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 02:29:44,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:44,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 02:29:44,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2025-03-09 02:29:44,029 INFO L87 Difference]: Start difference. First operand 407 states and 517 transitions. Second operand has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:29:45,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:45,442 INFO L93 Difference]: Finished difference Result 456 states and 594 transitions. [2025-03-09 02:29:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:29:45,443 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) Word has length 50 [2025-03-09 02:29:45,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:45,444 INFO L225 Difference]: With dead ends: 456 [2025-03-09 02:29:45,444 INFO L226 Difference]: Without dead ends: 436 [2025-03-09 02:29:45,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:29:45,445 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 384 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:45,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 177 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-09 02:29:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2025-03-09 02:29:45,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 366. [2025-03-09 02:29:45,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 333 states have (on average 1.2942942942942943) internal successors, (431), 350 states have internal predecessors, (431), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-09 02:29:45,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 457 transitions. [2025-03-09 02:29:45,459 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 457 transitions. Word has length 50 [2025-03-09 02:29:45,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:45,459 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 457 transitions. [2025-03-09 02:29:45,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.0588235294117645) internal successors, (69), 16 states have internal predecessors, (69), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2025-03-09 02:29:45,459 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 457 transitions. [2025-03-09 02:29:45,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-09 02:29:45,460 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:45,460 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-03-09 02:29:45,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-09 02:29:45,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:45,660 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:45,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1693779994, now seen corresponding path program 1 times [2025-03-09 02:29:45,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:45,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121179192] [2025-03-09 02:29:45,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:45,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:45,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-09 02:29:45,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 02:29:45,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:45,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:45,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314652273] [2025-03-09 02:29:45,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:45,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:45,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:45,674 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) [2025-03-09 02:29:45,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-09 02:29:45,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-09 02:29:45,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 02:29:45,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:45,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:45,703 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:29:45,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:45,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:46,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121179192] [2025-03-09 02:29:46,145 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:46,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314652273] [2025-03-09 02:29:46,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314652273] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:46,145 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:46,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:29:46,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393674439] [2025-03-09 02:29:46,146 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:46,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:29:46,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:46,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:29:46,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:29:46,146 INFO L87 Difference]: Start difference. First operand 366 states and 457 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:46,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:46,360 INFO L93 Difference]: Finished difference Result 406 states and 516 transitions. [2025-03-09 02:29:46,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:29:46,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2025-03-09 02:29:46,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:46,361 INFO L225 Difference]: With dead ends: 406 [2025-03-09 02:29:46,361 INFO L226 Difference]: Without dead ends: 401 [2025-03-09 02:29:46,361 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:29:46,361 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 176 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:46,361 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 51 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:29:46,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2025-03-09 02:29:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 311. [2025-03-09 02:29:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 285 states have (on average 1.231578947368421) internal successors, (351), 297 states have internal predecessors, (351), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:29:46,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 373 transitions. [2025-03-09 02:29:46,374 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 373 transitions. Word has length 51 [2025-03-09 02:29:46,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:46,374 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 373 transitions. [2025-03-09 02:29:46,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:46,375 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 373 transitions. [2025-03-09 02:29:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-09 02:29:46,375 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:46,375 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:46,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-09 02:29:46,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:46,583 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:46,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:46,583 INFO L85 PathProgramCache]: Analyzing trace with hash 967572322, now seen corresponding path program 1 times [2025-03-09 02:29:46,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:46,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13985250] [2025-03-09 02:29:46,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:46,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:46,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 02:29:46,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 02:29:46,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:46,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:46,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [792437398] [2025-03-09 02:29:46,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:46,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:46,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:46,596 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) [2025-03-09 02:29:46,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-09 02:29:46,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 02:29:46,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 02:29:46,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:46,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:46,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-09 02:29:46,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:29:47,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:47,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:47,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13985250] [2025-03-09 02:29:47,339 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:47,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792437398] [2025-03-09 02:29:47,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792437398] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:47,339 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:47,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:29:47,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226896760] [2025-03-09 02:29:47,339 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:47,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:29:47,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:47,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:29:47,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:29:47,341 INFO L87 Difference]: Start difference. First operand 311 states and 373 transitions. Second operand has 12 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:47,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:47,793 INFO L93 Difference]: Finished difference Result 353 states and 425 transitions. [2025-03-09 02:29:47,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:29:47,793 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2025-03-09 02:29:47,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:47,794 INFO L225 Difference]: With dead ends: 353 [2025-03-09 02:29:47,794 INFO L226 Difference]: Without dead ends: 352 [2025-03-09 02:29:47,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2025-03-09 02:29:47,795 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 326 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:47,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 128 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:47,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2025-03-09 02:29:47,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 332. [2025-03-09 02:29:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 305 states have (on average 1.2360655737704918) internal successors, (377), 317 states have internal predecessors, (377), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2025-03-09 02:29:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 401 transitions. [2025-03-09 02:29:47,809 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 401 transitions. Word has length 52 [2025-03-09 02:29:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:47,809 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 401 transitions. [2025-03-09 02:29:47,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 02:29:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 401 transitions. [2025-03-09 02:29:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-09 02:29:47,810 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:47,810 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:47,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:48,010 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,SelfDestructingSolverStorable34 [2025-03-09 02:29:48,010 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:48,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:48,011 INFO L85 PathProgramCache]: Analyzing trace with hash -70029032, now seen corresponding path program 1 times [2025-03-09 02:29:48,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:48,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469580942] [2025-03-09 02:29:48,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:48,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 02:29:48,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 02:29:48,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:48,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:48,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1108026591] [2025-03-09 02:29:48,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:48,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:48,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:48,025 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) [2025-03-09 02:29:48,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-09 02:29:48,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 02:29:48,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 02:29:48,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:48,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:48,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:29:48,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:48,252 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:50,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:50,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469580942] [2025-03-09 02:29:50,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:50,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108026591] [2025-03-09 02:29:50,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108026591] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:50,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:50,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-09 02:29:50,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301889026] [2025-03-09 02:29:50,755 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:50,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:29:50,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:50,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:29:50,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:29:50,756 INFO L87 Difference]: Start difference. First operand 332 states and 401 transitions. Second operand has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:51,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:51,193 INFO L93 Difference]: Finished difference Result 393 states and 480 transitions. [2025-03-09 02:29:51,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:29:51,193 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2025-03-09 02:29:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:51,194 INFO L225 Difference]: With dead ends: 393 [2025-03-09 02:29:51,194 INFO L226 Difference]: Without dead ends: 390 [2025-03-09 02:29:51,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:29:51,195 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 172 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:51,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 143 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:29:51,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-03-09 02:29:51,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 374. [2025-03-09 02:29:51,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 345 states have (on average 1.23768115942029) internal successors, (427), 357 states have internal predecessors, (427), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:51,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 455 transitions. [2025-03-09 02:29:51,213 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 455 transitions. Word has length 53 [2025-03-09 02:29:51,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:51,213 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 455 transitions. [2025-03-09 02:29:51,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:51,214 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 455 transitions. [2025-03-09 02:29:51,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-09 02:29:51,214 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:51,214 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:51,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:51,414 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,SelfDestructingSolverStorable35 [2025-03-09 02:29:51,414 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:51,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2124067360, now seen corresponding path program 1 times [2025-03-09 02:29:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:51,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990175599] [2025-03-09 02:29:51,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:51,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-09 02:29:51,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-09 02:29:51,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:51,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:51,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765056510] [2025-03-09 02:29:51,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:51,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:51,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:51,430 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) [2025-03-09 02:29:51,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-09 02:29:51,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-09 02:29:51,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-09 02:29:51,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:51,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:51,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 02:29:51,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:51,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-09 02:29:51,861 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:29:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:29:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990175599] [2025-03-09 02:29:56,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:29:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765056510] [2025-03-09 02:29:56,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765056510] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:29:56,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:29:56,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:29:56,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482180001] [2025-03-09 02:29:56,072 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:29:56,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:29:56,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:29:56,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:29:56,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=214, Unknown=1, NotChecked=0, Total=272 [2025-03-09 02:29:56,073 INFO L87 Difference]: Start difference. First operand 374 states and 455 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:57,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:29:57,098 INFO L93 Difference]: Finished difference Result 383 states and 463 transitions. [2025-03-09 02:29:57,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:29:57,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2025-03-09 02:29:57,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:29:57,100 INFO L225 Difference]: With dead ends: 383 [2025-03-09 02:29:57,100 INFO L226 Difference]: Without dead ends: 382 [2025-03-09 02:29:57,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=117, Invalid=388, Unknown=1, NotChecked=0, Total=506 [2025-03-09 02:29:57,100 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 134 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-03-09 02:29:57,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 183 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-03-09 02:29:57,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-03-09 02:29:57,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 374. [2025-03-09 02:29:57,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 345 states have (on average 1.2347826086956522) internal successors, (426), 357 states have internal predecessors, (426), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2025-03-09 02:29:57,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 454 transitions. [2025-03-09 02:29:57,125 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 454 transitions. Word has length 54 [2025-03-09 02:29:57,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:29:57,126 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 454 transitions. [2025-03-09 02:29:57,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:29:57,126 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 454 transitions. [2025-03-09 02:29:57,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-09 02:29:57,126 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:29:57,126 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:29:57,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-09 02:29:57,327 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,SelfDestructingSolverStorable36 [2025-03-09 02:29:57,327 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:29:57,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:29:57,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1081866256, now seen corresponding path program 1 times [2025-03-09 02:29:57,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:29:57,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709945320] [2025-03-09 02:29:57,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:57,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:29:57,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-09 02:29:57,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-09 02:29:57,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:57,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:29:57,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213892450] [2025-03-09 02:29:57,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:29:57,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:29:57,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:29:57,351 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) [2025-03-09 02:29:57,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-09 02:29:57,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-09 02:29:57,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-09 02:29:57,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:29:57,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:29:57,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-03-09 02:29:57,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:29:59,159 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-09 02:29:59,159 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:12,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709945320] [2025-03-09 02:30:12,851 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:30:12,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213892450] [2025-03-09 02:30:12,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213892450] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:12,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:30:12,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2025-03-09 02:30:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776307687] [2025-03-09 02:30:12,851 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:12,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 02:30:12,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:12,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 02:30:12,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2025-03-09 02:30:12,852 INFO L87 Difference]: Start difference. First operand 374 states and 454 transitions. Second operand has 18 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-03-09 02:30:17,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:30:21,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:30:23,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:30:27,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:30:33,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:33,692 INFO L93 Difference]: Finished difference Result 428 states and 520 transitions. [2025-03-09 02:30:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-09 02:30:33,692 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2025-03-09 02:30:33,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:33,693 INFO L225 Difference]: With dead ends: 428 [2025-03-09 02:30:33,693 INFO L226 Difference]: Without dead ends: 426 [2025-03-09 02:30:33,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=187, Invalid=742, Unknown=1, NotChecked=0, Total=930 [2025-03-09 02:30:33,694 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 177 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:33,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 259 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1018 Invalid, 2 Unknown, 0 Unchecked, 13.9s Time] [2025-03-09 02:30:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2025-03-09 02:30:33,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 406. [2025-03-09 02:30:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 375 states have (on average 1.2373333333333334) internal successors, (464), 387 states have internal predecessors, (464), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2025-03-09 02:30:33,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 496 transitions. [2025-03-09 02:30:33,715 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 496 transitions. Word has length 60 [2025-03-09 02:30:33,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:33,716 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 496 transitions. [2025-03-09 02:30:33,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.75) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-03-09 02:30:33,716 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 496 transitions. [2025-03-09 02:30:33,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-09 02:30:33,716 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:33,716 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:33,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-09 02:30:33,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:33,921 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:33,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1567695374, now seen corresponding path program 1 times [2025-03-09 02:30:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258940390] [2025-03-09 02:30:33,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:33,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:33,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-09 02:30:33,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-09 02:30:33,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:33,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:30:33,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:30:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258940390] [2025-03-09 02:30:33,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258940390] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:30:33,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097281041] [2025-03-09 02:30:33,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:33,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:33,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:33,967 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) [2025-03-09 02:30:33,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-09 02:30:33,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-09 02:30:34,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-09 02:30:34,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:34,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:34,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:30:34,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:30:34,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:30:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-09 02:30:34,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097281041] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:30:34,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:30:34,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-03-09 02:30:34,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129881506] [2025-03-09 02:30:34,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:30:34,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:30:34,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:30:34,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:30:34,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:30:34,107 INFO L87 Difference]: Start difference. First operand 406 states and 496 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-09 02:30:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:30:34,282 INFO L93 Difference]: Finished difference Result 794 states and 1013 transitions. [2025-03-09 02:30:34,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 02:30:34,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 61 [2025-03-09 02:30:34,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:30:34,284 INFO L225 Difference]: With dead ends: 794 [2025-03-09 02:30:34,284 INFO L226 Difference]: Without dead ends: 793 [2025-03-09 02:30:34,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:30:34,285 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 174 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:30:34,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 212 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:30:34,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2025-03-09 02:30:34,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 793. [2025-03-09 02:30:34,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 751 states have (on average 1.2649800266311584) internal successors, (950), 763 states have internal predecessors, (950), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2025-03-09 02:30:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1004 transitions. [2025-03-09 02:30:34,320 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1004 transitions. Word has length 61 [2025-03-09 02:30:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:30:34,320 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1004 transitions. [2025-03-09 02:30:34,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-09 02:30:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1004 transitions. [2025-03-09 02:30:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-09 02:30:34,321 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:30:34,321 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:30:34,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-03-09 02:30:34,521 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,SelfDestructingSolverStorable38 [2025-03-09 02:30:34,521 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2025-03-09 02:30:34,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:30:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash 886038354, now seen corresponding path program 1 times [2025-03-09 02:30:34,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:30:34,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425841114] [2025-03-09 02:30:34,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:34,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:30:34,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-09 02:30:34,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-09 02:30:34,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:34,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:30:34,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666734280] [2025-03-09 02:30:34,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:30:34,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:30:34,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:30:34,538 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) [2025-03-09 02:30:34,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-09 02:30:34,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-09 02:30:34,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-09 02:30:34,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:30:34,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:30:34,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-03-09 02:30:34,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:30:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 14 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-09 02:30:35,474 INFO L312 TraceCheckSpWp]: Computing backward predicates...