./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound50.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/egcd2-ll_valuebound50.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 fc71ae13b1bed24e074eb2de07c8f2064aa903343708c3aabf1b928078c9e7f6 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:10:47,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:10:47,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:10:47,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:10:47,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:10:47,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:10:47,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:10:47,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:10:47,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:10:47,197 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:10:47,197 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:10:47,197 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:10:47,198 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:10:47,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:10:47,198 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:10:47,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:10:47,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:10:47,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:10:47,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:10:47,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:10:47,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:10:47,201 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 -> fc71ae13b1bed24e074eb2de07c8f2064aa903343708c3aabf1b928078c9e7f6 [2025-03-09 02:10:47,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:10:47,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:10:47,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:10:47,413 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:10:47,413 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:10:47,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound50.c [2025-03-09 02:10:48,570 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f324a51/b4bc57c72bbb435581ee8dd28f9bb85d/FLAGb7e5c954f [2025-03-09 02:10:48,821 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:10:48,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_valuebound50.c [2025-03-09 02:10:48,830 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f324a51/b4bc57c72bbb435581ee8dd28f9bb85d/FLAGb7e5c954f [2025-03-09 02:10:48,846 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f324a51/b4bc57c72bbb435581ee8dd28f9bb85d [2025-03-09 02:10:48,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:10:48,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:10:48,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:10:48,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:10:48,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:10:48,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:10:48" (1/1) ... [2025-03-09 02:10:48,858 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e76790c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:48, skipping insertion in model container [2025-03-09 02:10:48,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:10:48" (1/1) ... [2025-03-09 02:10:48,870 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:10:48,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:10:48,983 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:10:48,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:10:49,005 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:10:49,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49 WrapperNode [2025-03-09 02:10:49,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:10:49,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:10:49,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:10:49,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:10:49,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,025 INFO L138 Inliner]: procedures = 14, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 143 [2025-03-09 02:10:49,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:10:49,026 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:10:49,026 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:10:49,026 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:10:49,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,040 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 02:10:49,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:10:49,048 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:10:49,048 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:10:49,048 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:10:49,049 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (1/1) ... [2025-03-09 02:10:49,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:10:49,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:49,071 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 02:10:49,073 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 02:10:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:10:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 02:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 02:10:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:10:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:10:49,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:10:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:10:49,131 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:10:49,132 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:10:49,623 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2025-03-09 02:10:49,623 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:10:49,633 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:10:49,633 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:10:49,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:10:49 BoogieIcfgContainer [2025-03-09 02:10:49,634 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:10:49,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:10:49,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:10:49,638 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:10:49,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:10:48" (1/3) ... [2025-03-09 02:10:49,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5966f645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:10:49, skipping insertion in model container [2025-03-09 02:10:49,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:10:49" (2/3) ... [2025-03-09 02:10:49,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5966f645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:10:49, skipping insertion in model container [2025-03-09 02:10:49,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:10:49" (3/3) ... [2025-03-09 02:10:49,641 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd2-ll_valuebound50.c [2025-03-09 02:10:49,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:10:49,654 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd2-ll_valuebound50.c that has 3 procedures, 161 locations, 1 initial locations, 2 loop locations, and 64 error locations. [2025-03-09 02:10:49,701 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:10:49,709 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;@4a4609da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:10:49,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2025-03-09 02:10:49,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 161 states, 82 states have (on average 1.853658536585366) internal successors, (152), 147 states have internal predecessors, (152), 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 02:10:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:10:49,717 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:49,717 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:10:49,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:49,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash 763227409, now seen corresponding path program 1 times [2025-03-09 02:10:49,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:49,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441240290] [2025-03-09 02:10:49,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:49,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:49,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:10:49,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:10:49,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:49,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:49,821 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:10:49,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:49,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441240290] [2025-03-09 02:10:49,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441240290] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:49,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025432837] [2025-03-09 02:10:49,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:49,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:49,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:49,825 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 02:10:49,829 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 02:10:49,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:10:49,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:10:49,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:49,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:49,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 02:10:49,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:49,883 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-09 02:10:49,883 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:49,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025432837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:49,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:49,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-09 02:10:49,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78916703] [2025-03-09 02:10:49,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:49,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:10:49,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:49,901 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:10:49,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:10:49,903 INFO L87 Difference]: Start difference. First operand has 161 states, 82 states have (on average 1.853658536585366) internal successors, (152), 147 states have internal predecessors, (152), 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) 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:10:49,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:49,925 INFO L93 Difference]: Finished difference Result 317 states and 359 transitions. [2025-03-09 02:10:49,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:10:49,928 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2025-03-09 02:10:49,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:49,933 INFO L225 Difference]: With dead ends: 317 [2025-03-09 02:10:49,933 INFO L226 Difference]: Without dead ends: 153 [2025-03-09 02:10:49,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 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 02:10:49,937 INFO L435 NwaCegarLoop]: 170 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, 170 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 02:10:49,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:10:49,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2025-03-09 02:10:49,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2025-03-09 02:10:49,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 77 states have (on average 1.8311688311688312) internal successors, (141), 140 states have internal predecessors, (141), 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 02:10:49,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 163 transitions. [2025-03-09 02:10:49,968 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 163 transitions. Word has length 25 [2025-03-09 02:10:49,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:49,968 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 163 transitions. [2025-03-09 02:10:49,968 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 02:10:49,969 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 163 transitions. [2025-03-09 02:10:49,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 02:10:49,969 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:49,970 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:10:49,975 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 02:10:50,170 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 02:10:50,170 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:50,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:50,171 INFO L85 PathProgramCache]: Analyzing trace with hash -2008427149, now seen corresponding path program 1 times [2025-03-09 02:10:50,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:50,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271068169] [2025-03-09 02:10:50,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:50,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:50,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:10:50,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:10:50,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:50,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:50,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928419310] [2025-03-09 02:10:50,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:50,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:50,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:50,203 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 02:10:50,204 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 02:10:50,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 02:10:50,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 02:10:50,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:50,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:50,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:10:50,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:50,368 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 02:10:50,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:50,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:50,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271068169] [2025-03-09 02:10:50,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:50,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928419310] [2025-03-09 02:10:50,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928419310] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:50,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:50,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 02:10:50,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933070896] [2025-03-09 02:10:50,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:50,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:10:50,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:50,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:10:50,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:10:50,370 INFO L87 Difference]: Start difference. First operand 153 states and 163 transitions. Second operand has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:10:50,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:50,626 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2025-03-09 02:10:50,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:10:50,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 25 [2025-03-09 02:10:50,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:50,627 INFO L225 Difference]: With dead ends: 153 [2025-03-09 02:10:50,627 INFO L226 Difference]: Without dead ends: 151 [2025-03-09 02:10:50,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-09 02:10:50,628 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:50,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 238 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:50,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2025-03-09 02:10:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2025-03-09 02:10:50,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 77 states have (on average 1.8051948051948052) internal successors, (139), 138 states have internal predecessors, (139), 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 02:10:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2025-03-09 02:10:50,641 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 25 [2025-03-09 02:10:50,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:50,642 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2025-03-09 02:10:50,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-09 02:10:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2025-03-09 02:10:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-09 02:10:50,642 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:50,642 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:10:50,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 02:10:50,843 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 02:10:50,843 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:50,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:50,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2131699361, now seen corresponding path program 1 times [2025-03-09 02:10:50,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:50,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662129241] [2025-03-09 02:10:50,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:50,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:50,850 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 02:10:50,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:10:50,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:50,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:50,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [512410838] [2025-03-09 02:10:50,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:50,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:50,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:50,868 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 02:10:50,870 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 02:10:50,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-09 02:10:50,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-09 02:10:50,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:50,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:50,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:10:50,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-03-09 02:10:51,012 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:10:51,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:51,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662129241] [2025-03-09 02:10:51,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:51,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512410838] [2025-03-09 02:10:51,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512410838] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:51,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:51,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:10:51,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196079710] [2025-03-09 02:10:51,221 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:10:51,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:10:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:51,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:10:51,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:10:51,222 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 02:10:51,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:51,467 INFO L93 Difference]: Finished difference Result 151 states and 161 transitions. [2025-03-09 02:10:51,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:10:51,468 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 26 [2025-03-09 02:10:51,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:51,469 INFO L225 Difference]: With dead ends: 151 [2025-03-09 02:10:51,470 INFO L226 Difference]: Without dead ends: 150 [2025-03-09 02:10:51,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:10:51,471 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 190 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:51,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 238 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:51,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2025-03-09 02:10:51,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2025-03-09 02:10:51,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 137 states have internal predecessors, (138), 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 02:10:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2025-03-09 02:10:51,486 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 26 [2025-03-09 02:10:51,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:51,486 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2025-03-09 02:10:51,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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 02:10:51,486 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2025-03-09 02:10:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:10:51,488 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:51,488 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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 02:10:51,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:51,688 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 02:10:51,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:51,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:51,689 INFO L85 PathProgramCache]: Analyzing trace with hash 459241006, now seen corresponding path program 1 times [2025-03-09 02:10:51,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:51,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720136698] [2025-03-09 02:10:51,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:51,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:51,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:10:51,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:10:51,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:51,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:51,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:51,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720136698] [2025-03-09 02:10:51,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720136698] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:51,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219740427] [2025-03-09 02:10:51,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:51,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:51,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:51,874 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 02:10:51,876 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 02:10:51,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:10:51,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:10:51,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:51,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:51,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:10:51,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:51,943 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:51,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219740427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:51,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:51,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2025-03-09 02:10:51,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289744323] [2025-03-09 02:10:51,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:51,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:10:51,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:51,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:10:51,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:51,944 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:52,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:52,116 INFO L93 Difference]: Finished difference Result 254 states and 286 transitions. [2025-03-09 02:10:52,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:10:52,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2025-03-09 02:10:52,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:52,118 INFO L225 Difference]: With dead ends: 254 [2025-03-09 02:10:52,118 INFO L226 Difference]: Without dead ends: 244 [2025-03-09 02:10:52,118 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:52,119 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:52,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 216 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:52,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-03-09 02:10:52,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 201. [2025-03-09 02:10:52,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 124 states have (on average 1.782258064516129) internal successors, (221), 183 states have internal predecessors, (221), 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 02:10:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 251 transitions. [2025-03-09 02:10:52,131 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 251 transitions. Word has length 40 [2025-03-09 02:10:52,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:52,131 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 251 transitions. [2025-03-09 02:10:52,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 251 transitions. [2025-03-09 02:10:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-03-09 02:10:52,132 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:52,132 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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 02:10:52,138 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 02:10:52,336 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 02:10:52,336 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:52,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:52,337 INFO L85 PathProgramCache]: Analyzing trace with hash 459241171, now seen corresponding path program 1 times [2025-03-09 02:10:52,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:52,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093660127] [2025-03-09 02:10:52,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:52,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:52,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:10:52,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:10:52,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:52,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [356651590] [2025-03-09 02:10:52,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:52,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:52,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:52,363 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 02:10:52,364 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 02:10:52,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-09 02:10:52,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-09 02:10:52,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:52,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:52,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:10:52,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:52,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:52,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:52,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093660127] [2025-03-09 02:10:52,399 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:52,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356651590] [2025-03-09 02:10:52,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356651590] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:52,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:52,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:10:52,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168504521] [2025-03-09 02:10:52,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:52,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:10:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:52,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:10:52,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:10:52,401 INFO L87 Difference]: Start difference. First operand 201 states and 251 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-09 02:10:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:52,485 INFO L93 Difference]: Finished difference Result 345 states and 445 transitions. [2025-03-09 02:10:52,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:10:52,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 40 [2025-03-09 02:10:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:52,487 INFO L225 Difference]: With dead ends: 345 [2025-03-09 02:10:52,487 INFO L226 Difference]: Without dead ends: 337 [2025-03-09 02:10:52,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:10:52,488 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 83 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:52,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 270 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:10:52,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-03-09 02:10:52,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 298. [2025-03-09 02:10:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 213 states have (on average 1.784037558685446) internal successors, (380), 272 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:52,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 426 transitions. [2025-03-09 02:10:52,511 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 426 transitions. Word has length 40 [2025-03-09 02:10:52,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:52,512 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 426 transitions. [2025-03-09 02:10:52,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2025-03-09 02:10:52,512 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 426 transitions. [2025-03-09 02:10:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:10:52,513 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:52,513 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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 02:10:52,519 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 02:10:52,717 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 02:10:52,718 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:52,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:52,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1051024884, now seen corresponding path program 1 times [2025-03-09 02:10:52,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:52,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248741888] [2025-03-09 02:10:52,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:52,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:52,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:10:52,733 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:10:52,733 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:52,733 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:52,824 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:52,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248741888] [2025-03-09 02:10:52,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248741888] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:52,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464407772] [2025-03-09 02:10:52,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:52,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:52,827 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 02:10:52,829 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 02:10:52,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:10:52,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:10:52,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:52,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:52,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:10:52,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:52,911 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:52,912 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:52,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464407772] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:52,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:52,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:10:52,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62490533] [2025-03-09 02:10:52,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:52,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:52,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:52,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:52,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:52,913 INFO L87 Difference]: Start difference. First operand 298 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:53,163 INFO L93 Difference]: Finished difference Result 317 states and 448 transitions. [2025-03-09 02:10:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:53,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2025-03-09 02:10:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:53,165 INFO L225 Difference]: With dead ends: 317 [2025-03-09 02:10:53,165 INFO L226 Difference]: Without dead ends: 316 [2025-03-09 02:10:53,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:53,166 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 58 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:53,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 197 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:53,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2025-03-09 02:10:53,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2025-03-09 02:10:53,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.780373831775701) internal successors, (381), 273 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:53,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 427 transitions. [2025-03-09 02:10:53,176 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 427 transitions. Word has length 42 [2025-03-09 02:10:53,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:53,176 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 427 transitions. [2025-03-09 02:10:53,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:53,176 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 427 transitions. [2025-03-09 02:10:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-03-09 02:10:53,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:53,177 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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 02:10:53,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:53,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:53,385 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:53,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1050863023, now seen corresponding path program 1 times [2025-03-09 02:10:53,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:53,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263819050] [2025-03-09 02:10:53,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:53,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:53,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:10:53,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:10:53,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:53,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:53,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:53,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263819050] [2025-03-09 02:10:53,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263819050] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652213142] [2025-03-09 02:10:53,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:53,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:53,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:53,522 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 02:10:53,523 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 02:10:53,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-09 02:10:53,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-09 02:10:53,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:53,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:53,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:10:53,552 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:53,607 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:53,607 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:53,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652213142] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:53,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:53,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2025-03-09 02:10:53,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022188610] [2025-03-09 02:10:53,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:53,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:10:53,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:53,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:10:53,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:10:53,608 INFO L87 Difference]: Start difference. First operand 299 states and 427 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:54,060 INFO L93 Difference]: Finished difference Result 380 states and 447 transitions. [2025-03-09 02:10:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:10:54,060 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2025-03-09 02:10:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:54,062 INFO L225 Difference]: With dead ends: 380 [2025-03-09 02:10:54,062 INFO L226 Difference]: Without dead ends: 379 [2025-03-09 02:10:54,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-03-09 02:10:54,062 INFO L435 NwaCegarLoop]: 93 mSDtfsCounter, 424 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:54,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 308 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:10:54,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-03-09 02:10:54,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 299. [2025-03-09 02:10:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 214 states have (on average 1.7757009345794392) internal successors, (380), 273 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:54,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 426 transitions. [2025-03-09 02:10:54,081 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 426 transitions. Word has length 42 [2025-03-09 02:10:54,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:54,081 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 426 transitions. [2025-03-09 02:10:54,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:54,082 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 426 transitions. [2025-03-09 02:10:54,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-09 02:10:54,084 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:54,084 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 02:10:54,093 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 02:10:54,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:54,284 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:54,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:54,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1777966955, now seen corresponding path program 1 times [2025-03-09 02:10:54,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:54,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007549036] [2025-03-09 02:10:54,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:54,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:54,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:10:54,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:10:54,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:54,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:54,367 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:54,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:54,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007549036] [2025-03-09 02:10:54,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007549036] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:54,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170880157] [2025-03-09 02:10:54,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:54,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:54,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:54,370 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 02:10:54,372 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 02:10:54,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:10:54,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:10:54,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:54,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:54,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:10:54,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:54,451 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:54,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:54,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170880157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:54,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:54,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:10:54,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252174528] [2025-03-09 02:10:54,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:54,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:54,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:54,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:54,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:54,455 INFO L87 Difference]: Start difference. First operand 299 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:54,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:54,713 INFO L93 Difference]: Finished difference Result 317 states and 446 transitions. [2025-03-09 02:10:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:54,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2025-03-09 02:10:54,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:54,715 INFO L225 Difference]: With dead ends: 317 [2025-03-09 02:10:54,715 INFO L226 Difference]: Without dead ends: 316 [2025-03-09 02:10:54,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:54,716 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 57 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:54,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 198 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2025-03-09 02:10:54,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 300. [2025-03-09 02:10:54,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7720930232558139) internal successors, (381), 274 states have internal predecessors, (381), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:54,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 427 transitions. [2025-03-09 02:10:54,728 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 427 transitions. Word has length 43 [2025-03-09 02:10:54,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:54,728 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 427 transitions. [2025-03-09 02:10:54,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 427 transitions. [2025-03-09 02:10:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-03-09 02:10:54,733 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:54,733 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 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 02:10:54,739 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 02:10:54,937 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,SelfDestructingSolverStorable7 [2025-03-09 02:10:54,937 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:54,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:54,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1782984749, now seen corresponding path program 1 times [2025-03-09 02:10:54,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:54,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329699193] [2025-03-09 02:10:54,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:54,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:54,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:10:54,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:10:54,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:54,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:54,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875192268] [2025-03-09 02:10:54,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:54,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:54,953 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 02:10:54,954 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 02:10:54,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-09 02:10:54,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-09 02:10:54,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:54,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:54,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 02:10:54,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:55,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:55,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329699193] [2025-03-09 02:10:55,028 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:55,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875192268] [2025-03-09 02:10:55,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875192268] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:55,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:55,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:10:55,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706287711] [2025-03-09 02:10:55,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:55,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:10:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:55,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:10:55,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:10:55,029 INFO L87 Difference]: Start difference. First operand 300 states and 427 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:55,299 INFO L93 Difference]: Finished difference Result 379 states and 445 transitions. [2025-03-09 02:10:55,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:10:55,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2025-03-09 02:10:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:55,301 INFO L225 Difference]: With dead ends: 379 [2025-03-09 02:10:55,301 INFO L226 Difference]: Without dead ends: 378 [2025-03-09 02:10:55,301 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:55,302 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 447 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:55,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 290 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-03-09 02:10:55,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 300. [2025-03-09 02:10:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 215 states have (on average 1.7674418604651163) internal successors, (380), 274 states have internal predecessors, (380), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 426 transitions. [2025-03-09 02:10:55,311 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 426 transitions. Word has length 43 [2025-03-09 02:10:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:55,311 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 426 transitions. [2025-03-09 02:10:55,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:55,311 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 426 transitions. [2025-03-09 02:10:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-09 02:10:55,312 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:55,312 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 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 02:10:55,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:55,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:55,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:55,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash -717599254, now seen corresponding path program 1 times [2025-03-09 02:10:55,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:55,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902527642] [2025-03-09 02:10:55,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:55,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:10:55,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:10:55,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:55,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:55,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:55,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902527642] [2025-03-09 02:10:55,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902527642] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:55,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906234911] [2025-03-09 02:10:55,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:55,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:55,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:55,576 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 02:10:55,577 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 02:10:55,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-09 02:10:55,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-09 02:10:55,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:55,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:55,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:55,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:55,636 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906234911] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:55,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:55,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:10:55,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114191206] [2025-03-09 02:10:55,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:55,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:55,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:55,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:55,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:55,637 INFO L87 Difference]: Start difference. First operand 300 states and 426 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:55,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:55,938 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2025-03-09 02:10:55,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:55,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2025-03-09 02:10:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:55,940 INFO L225 Difference]: With dead ends: 349 [2025-03-09 02:10:55,940 INFO L226 Difference]: Without dead ends: 345 [2025-03-09 02:10:55,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:55,941 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 145 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:55,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 221 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:10:55,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2025-03-09 02:10:55,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 301. [2025-03-09 02:10:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 216 states have (on average 1.7407407407407407) internal successors, (376), 275 states have internal predecessors, (376), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:55,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 422 transitions. [2025-03-09 02:10:55,965 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 422 transitions. Word has length 44 [2025-03-09 02:10:55,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:55,966 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 422 transitions. [2025-03-09 02:10:55,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 422 transitions. [2025-03-09 02:10:55,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-03-09 02:10:55,966 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:55,966 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 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 02:10:55,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:56,167 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,SelfDestructingSolverStorable9 [2025-03-09 02:10:56,167 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:56,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:56,167 INFO L85 PathProgramCache]: Analyzing trace with hash -770740407, now seen corresponding path program 1 times [2025-03-09 02:10:56,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:56,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89304953] [2025-03-09 02:10:56,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:56,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:56,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:10:56,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:10:56,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:56,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:56,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:56,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89304953] [2025-03-09 02:10:56,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89304953] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:56,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125606838] [2025-03-09 02:10:56,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:56,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:56,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:56,233 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 02:10:56,235 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 02:10:56,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-09 02:10:56,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-09 02:10:56,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:56,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:56,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:56,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:56,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:56,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125606838] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:56,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:56,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:10:56,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295212719] [2025-03-09 02:10:56,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:56,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:56,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:56,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:56,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:56,322 INFO L87 Difference]: Start difference. First operand 301 states and 422 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:56,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:56,767 INFO L93 Difference]: Finished difference Result 348 states and 448 transitions. [2025-03-09 02:10:56,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2025-03-09 02:10:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:56,769 INFO L225 Difference]: With dead ends: 348 [2025-03-09 02:10:56,770 INFO L226 Difference]: Without dead ends: 344 [2025-03-09 02:10:56,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:56,770 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 142 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:56,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 227 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:10:56,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2025-03-09 02:10:56,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 302. [2025-03-09 02:10:56,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 217 states have (on average 1.7142857142857142) internal successors, (372), 276 states have internal predecessors, (372), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2025-03-09 02:10:56,781 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 45 [2025-03-09 02:10:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:56,782 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2025-03-09 02:10:56,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2025-03-09 02:10:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2025-03-09 02:10:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-09 02:10:56,784 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:56,784 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 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 02:10:56,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:56,984 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,SelfDestructingSolverStorable10 [2025-03-09 02:10:56,985 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:56,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:56,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1746903734, now seen corresponding path program 1 times [2025-03-09 02:10:56,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:56,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540521680] [2025-03-09 02:10:56,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:56,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:56,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 02:10:56,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 02:10:56,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:56,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:56,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568756394] [2025-03-09 02:10:56,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:56,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:56,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:56,999 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 02:10:57,001 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 02:10:57,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-09 02:10:57,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-09 02:10:57,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:57,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:57,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 02:10:57,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:57,051 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:57,051 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:57,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:57,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540521680] [2025-03-09 02:10:57,052 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:57,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568756394] [2025-03-09 02:10:57,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568756394] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:57,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:57,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:10:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134466417] [2025-03-09 02:10:57,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:57,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:10:57,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:57,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:10:57,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:10:57,053 INFO L87 Difference]: Start difference. First operand 302 states and 418 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:57,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:57,099 INFO L93 Difference]: Finished difference Result 350 states and 442 transitions. [2025-03-09 02:10:57,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:10:57,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 49 [2025-03-09 02:10:57,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:57,101 INFO L225 Difference]: With dead ends: 350 [2025-03-09 02:10:57,101 INFO L226 Difference]: Without dead ends: 346 [2025-03-09 02:10:57,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:10:57,102 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:57,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 284 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:10:57,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-03-09 02:10:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 307. [2025-03-09 02:10:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6923076923076923) internal successors, (374), 280 states have internal predecessors, (374), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-09 02:10:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 422 transitions. [2025-03-09 02:10:57,111 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 422 transitions. Word has length 49 [2025-03-09 02:10:57,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:57,111 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 422 transitions. [2025-03-09 02:10:57,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:57,111 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 422 transitions. [2025-03-09 02:10:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-03-09 02:10:57,112 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:57,112 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:57,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:57,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-09 02:10:57,313 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:57,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1459220213, now seen corresponding path program 1 times [2025-03-09 02:10:57,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:57,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978577278] [2025-03-09 02:10:57,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:57,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:57,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-09 02:10:57,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 02:10:57,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:57,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:57,386 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978577278] [2025-03-09 02:10:57,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978577278] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96580446] [2025-03-09 02:10:57,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:57,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:57,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:57,388 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 02:10:57,390 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 02:10:57,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-09 02:10:57,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-09 02:10:57,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:57,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:57,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:57,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:57,474 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:57,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96580446] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:57,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:57,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:10:57,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833040514] [2025-03-09 02:10:57,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:57,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:57,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:57,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:57,475 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:57,475 INFO L87 Difference]: Start difference. First operand 307 states and 422 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:57,624 INFO L93 Difference]: Finished difference Result 328 states and 426 transitions. [2025-03-09 02:10:57,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:57,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 51 [2025-03-09 02:10:57,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:57,626 INFO L225 Difference]: With dead ends: 328 [2025-03-09 02:10:57,626 INFO L226 Difference]: Without dead ends: 326 [2025-03-09 02:10:57,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:57,627 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 163 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:57,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 214 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:10:57,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-03-09 02:10:57,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2025-03-09 02:10:57,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.6787330316742082) internal successors, (371), 280 states have internal predecessors, (371), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-09 02:10:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 419 transitions. [2025-03-09 02:10:57,636 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 419 transitions. Word has length 51 [2025-03-09 02:10:57,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:57,636 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 419 transitions. [2025-03-09 02:10:57,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 419 transitions. [2025-03-09 02:10:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-03-09 02:10:57,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:57,637 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:57,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:57,837 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,SelfDestructingSolverStorable12 [2025-03-09 02:10:57,838 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:57,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:57,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2008813635, now seen corresponding path program 1 times [2025-03-09 02:10:57,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:57,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366622602] [2025-03-09 02:10:57,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:57,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:57,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 02:10:57,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 02:10:57,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:57,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-03-09 02:10:57,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366622602] [2025-03-09 02:10:57,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366622602] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:10:57,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446833232] [2025-03-09 02:10:57,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:57,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:57,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:57,897 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 02:10:57,899 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 02:10:57,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-09 02:10:57,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-09 02:10:57,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:57,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:57,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:57,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:57,983 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:57,983 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:57,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446833232] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:57,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:10:57,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2025-03-09 02:10:57,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267841998] [2025-03-09 02:10:57,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:57,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:57,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:57,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:57,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:57,986 INFO L87 Difference]: Start difference. First operand 307 states and 419 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:58,152 INFO L93 Difference]: Finished difference Result 328 states and 423 transitions. [2025-03-09 02:10:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:58,152 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2025-03-09 02:10:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:58,154 INFO L225 Difference]: With dead ends: 328 [2025-03-09 02:10:58,155 INFO L226 Difference]: Without dead ends: 326 [2025-03-09 02:10:58,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:10:58,155 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 225 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:58,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 196 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2025-03-09 02:10:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 307. [2025-03-09 02:10:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 221 states have (on average 1.665158371040724) internal successors, (368), 280 states have internal predecessors, (368), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-09 02:10:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 416 transitions. [2025-03-09 02:10:58,176 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 416 transitions. Word has length 52 [2025-03-09 02:10:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:58,176 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 416 transitions. [2025-03-09 02:10:58,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 416 transitions. [2025-03-09 02:10:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-03-09 02:10:58,177 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:58,177 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:58,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-09 02:10:58,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:58,378 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:58,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:58,379 INFO L85 PathProgramCache]: Analyzing trace with hash -895062394, now seen corresponding path program 1 times [2025-03-09 02:10:58,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:58,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103184797] [2025-03-09 02:10:58,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:58,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:58,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 02:10:58,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 02:10:58,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:58,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:58,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [700111121] [2025-03-09 02:10:58,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:58,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:58,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:58,394 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 02:10:58,396 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 02:10:58,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-09 02:10:58,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-09 02:10:58,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:58,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:58,429 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:58,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:58,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:58,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:58,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103184797] [2025-03-09 02:10:58,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:58,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700111121] [2025-03-09 02:10:58,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700111121] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:58,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:58,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:10:58,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001413505] [2025-03-09 02:10:58,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:58,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:58,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:58,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:58,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:10:58,457 INFO L87 Difference]: Start difference. First operand 307 states and 416 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:58,577 INFO L93 Difference]: Finished difference Result 344 states and 430 transitions. [2025-03-09 02:10:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2025-03-09 02:10:58,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:58,579 INFO L225 Difference]: With dead ends: 344 [2025-03-09 02:10:58,579 INFO L226 Difference]: Without dead ends: 342 [2025-03-09 02:10:58,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 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 02:10:58,580 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 136 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:58,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 283 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:10:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2025-03-09 02:10:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 308. [2025-03-09 02:10:58,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 222 states have (on average 1.6531531531531531) internal successors, (367), 281 states have internal predecessors, (367), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2025-03-09 02:10:58,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 415 transitions. [2025-03-09 02:10:58,591 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 415 transitions. Word has length 53 [2025-03-09 02:10:58,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:58,591 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 415 transitions. [2025-03-09 02:10:58,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 415 transitions. [2025-03-09 02:10:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-03-09 02:10:58,591 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:58,591 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:10:58,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-09 02:10:58,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-09 02:10:58,792 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:58,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:58,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1977130357, now seen corresponding path program 1 times [2025-03-09 02:10:58,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:58,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000069995] [2025-03-09 02:10:58,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:58,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:58,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-09 02:10:58,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-09 02:10:58,805 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:58,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:58,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292245851] [2025-03-09 02:10:58,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:58,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:58,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:58,808 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 02:10:58,809 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 02:10:58,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-09 02:10:58,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-09 02:10:58,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:58,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:58,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:58,842 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:58,909 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:10:58,910 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:58,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:58,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000069995] [2025-03-09 02:10:58,910 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:58,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292245851] [2025-03-09 02:10:58,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292245851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:58,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:58,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:10:58,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101780352] [2025-03-09 02:10:58,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:58,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:58,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:58,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:58,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:10:58,911 INFO L87 Difference]: Start difference. First operand 308 states and 415 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:59,112 INFO L93 Difference]: Finished difference Result 344 states and 427 transitions. [2025-03-09 02:10:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:59,113 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 54 [2025-03-09 02:10:59,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:59,115 INFO L225 Difference]: With dead ends: 344 [2025-03-09 02:10:59,115 INFO L226 Difference]: Without dead ends: 329 [2025-03-09 02:10:59,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 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 02:10:59,116 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 134 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:59,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 287 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:59,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2025-03-09 02:10:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 296. [2025-03-09 02:10:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6729857819905214) internal successors, (353), 270 states have internal predecessors, (353), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 399 transitions. [2025-03-09 02:10:59,126 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 399 transitions. Word has length 54 [2025-03-09 02:10:59,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:59,126 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 399 transitions. [2025-03-09 02:10:59,126 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, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-03-09 02:10:59,126 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 399 transitions. [2025-03-09 02:10:59,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-03-09 02:10:59,127 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:59,127 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:10:59,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:59,327 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,SelfDestructingSolverStorable15 [2025-03-09 02:10:59,327 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:59,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash -819282595, now seen corresponding path program 1 times [2025-03-09 02:10:59,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:59,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648615193] [2025-03-09 02:10:59,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:59,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:59,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 02:10:59,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 02:10:59,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:59,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:59,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85217561] [2025-03-09 02:10:59,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:59,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:59,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:59,343 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 02:10:59,345 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 02:10:59,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-03-09 02:10:59,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-03-09 02:10:59,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:59,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:59,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:59,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-09 02:10:59,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:59,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:59,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648615193] [2025-03-09 02:10:59,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:59,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85217561] [2025-03-09 02:10:59,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85217561] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:59,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:59,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:10:59,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950756697] [2025-03-09 02:10:59,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:59,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:59,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:59,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:59,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:10:59,442 INFO L87 Difference]: Start difference. First operand 296 states and 399 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:10:59,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:10:59,645 INFO L93 Difference]: Finished difference Result 320 states and 420 transitions. [2025-03-09 02:10:59,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:10:59,646 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2025-03-09 02:10:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:10:59,647 INFO L225 Difference]: With dead ends: 320 [2025-03-09 02:10:59,647 INFO L226 Difference]: Without dead ends: 319 [2025-03-09 02:10:59,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 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 02:10:59,647 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 157 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:10:59,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:10:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2025-03-09 02:10:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2025-03-09 02:10:59,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6682464454976302) internal successors, (352), 270 states have internal predecessors, (352), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:10:59,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 398 transitions. [2025-03-09 02:10:59,657 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 398 transitions. Word has length 62 [2025-03-09 02:10:59,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:10:59,658 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 398 transitions. [2025-03-09 02:10:59,658 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), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:10:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 398 transitions. [2025-03-09 02:10:59,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-09 02:10:59,659 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:10:59,659 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:10:59,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-09 02:10:59,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-09 02:10:59,859 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:10:59,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:10:59,860 INFO L85 PathProgramCache]: Analyzing trace with hash 372043403, now seen corresponding path program 1 times [2025-03-09 02:10:59,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:10:59,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697784436] [2025-03-09 02:10:59,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:59,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:10:59,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-09 02:10:59,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-09 02:10:59,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:59,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:10:59,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998908667] [2025-03-09 02:10:59,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:10:59,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:10:59,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:10:59,872 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 02:10:59,874 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 02:10:59,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-09 02:10:59,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-09 02:10:59,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:10:59,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:10:59,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:10:59,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:10:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-03-09 02:10:59,974 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:10:59,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:10:59,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697784436] [2025-03-09 02:10:59,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:10:59,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998908667] [2025-03-09 02:10:59,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998908667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:10:59,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:10:59,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:10:59,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110521844] [2025-03-09 02:10:59,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:10:59,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:10:59,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:10:59,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:10:59,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:10:59,975 INFO L87 Difference]: Start difference. First operand 296 states and 398 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:11:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:00,147 INFO L93 Difference]: Finished difference Result 320 states and 419 transitions. [2025-03-09 02:11:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:11:00,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2025-03-09 02:11:00,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:00,149 INFO L225 Difference]: With dead ends: 320 [2025-03-09 02:11:00,149 INFO L226 Difference]: Without dead ends: 319 [2025-03-09 02:11:00,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 02:11:00,149 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 156 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:00,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 173 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:11:00,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2025-03-09 02:11:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 296. [2025-03-09 02:11:00,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6635071090047393) internal successors, (351), 270 states have internal predecessors, (351), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 397 transitions. [2025-03-09 02:11:00,158 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 397 transitions. Word has length 63 [2025-03-09 02:11:00,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:00,158 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 397 transitions. [2025-03-09 02:11:00,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-09 02:11:00,158 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 397 transitions. [2025-03-09 02:11:00,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-09 02:11:00,158 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:00,158 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:00,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:00,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-09 02:11:00,359 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:00,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:00,359 INFO L85 PathProgramCache]: Analyzing trace with hash -865826702, now seen corresponding path program 1 times [2025-03-09 02:11:00,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:00,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723639110] [2025-03-09 02:11:00,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:00,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:00,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-09 02:11:00,369 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-09 02:11:00,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:00,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:00,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756354410] [2025-03-09 02:11:00,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:00,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:00,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:00,372 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 02:11:00,373 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 02:11:00,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-09 02:11:00,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-09 02:11:00,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:00,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:00,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:11:00,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:00,519 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-09 02:11:00,519 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:00,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723639110] [2025-03-09 02:11:00,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:00,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756354410] [2025-03-09 02:11:00,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756354410] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:00,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:00,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:11:00,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375299508] [2025-03-09 02:11:00,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:00,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:11:00,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:00,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:11:00,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:11:00,520 INFO L87 Difference]: Start difference. First operand 296 states and 397 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:00,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:00,643 INFO L93 Difference]: Finished difference Result 322 states and 418 transitions. [2025-03-09 02:11:00,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:11:00,643 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2025-03-09 02:11:00,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:00,644 INFO L225 Difference]: With dead ends: 322 [2025-03-09 02:11:00,644 INFO L226 Difference]: Without dead ends: 321 [2025-03-09 02:11:00,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 02:11:00,645 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 88 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:00,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 224 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:11:00,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-09 02:11:00,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2025-03-09 02:11:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6540284360189574) internal successors, (349), 270 states have internal predecessors, (349), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 395 transitions. [2025-03-09 02:11:00,657 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 395 transitions. Word has length 73 [2025-03-09 02:11:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:00,657 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 395 transitions. [2025-03-09 02:11:00,657 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 395 transitions. [2025-03-09 02:11:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-09 02:11:00,658 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:00,658 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:00,668 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 02:11:00,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:00,863 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:00,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1070823927, now seen corresponding path program 1 times [2025-03-09 02:11:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:00,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626846737] [2025-03-09 02:11:00,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:00,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-09 02:11:00,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-09 02:11:00,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:00,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:00,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [371448153] [2025-03-09 02:11:00,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:00,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:00,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:00,881 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 02:11:00,883 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 02:11:00,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-09 02:11:00,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-09 02:11:00,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:00,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:00,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:11:00,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-09 02:11:01,977 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:01,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:01,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626846737] [2025-03-09 02:11:01,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:01,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371448153] [2025-03-09 02:11:01,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371448153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:01,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:01,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:11:01,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717750637] [2025-03-09 02:11:01,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:01,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:11:01,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:01,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:11:01,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2025-03-09 02:11:01,979 INFO L87 Difference]: Start difference. First operand 296 states and 395 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:05,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-03-09 02:11:08,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:08,000 INFO L93 Difference]: Finished difference Result 322 states and 416 transitions. [2025-03-09 02:11:08,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:11:08,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2025-03-09 02:11:08,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:08,001 INFO L225 Difference]: With dead ends: 322 [2025-03-09 02:11:08,001 INFO L226 Difference]: Without dead ends: 321 [2025-03-09 02:11:08,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2025-03-09 02:11:08,002 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 43 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:08,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 321 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 3 Unknown, 0 Unchecked, 6.0s Time] [2025-03-09 02:11:08,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-09 02:11:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 296. [2025-03-09 02:11:08,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6445497630331753) internal successors, (347), 270 states have internal predecessors, (347), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 393 transitions. [2025-03-09 02:11:08,011 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 393 transitions. Word has length 74 [2025-03-09 02:11:08,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:08,011 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 393 transitions. [2025-03-09 02:11:08,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:08,011 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 393 transitions. [2025-03-09 02:11:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-09 02:11:08,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:08,011 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:08,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:08,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:08,217 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:08,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:08,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1164196688, now seen corresponding path program 1 times [2025-03-09 02:11:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:08,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561271069] [2025-03-09 02:11:08,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:08,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:08,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-09 02:11:08,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-09 02:11:08,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:08,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:08,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773717899] [2025-03-09 02:11:08,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:08,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:08,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:08,234 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 02:11:08,236 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 02:11:08,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-09 02:11:08,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-09 02:11:08,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:08,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:08,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:11:08,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-09 02:11:08,318 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:08,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561271069] [2025-03-09 02:11:08,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773717899] [2025-03-09 02:11:08,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773717899] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:08,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:08,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:11:08,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096981904] [2025-03-09 02:11:08,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:08,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:11:08,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:08,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:11:08,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:11:08,319 INFO L87 Difference]: Start difference. First operand 296 states and 393 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:08,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:08,455 INFO L93 Difference]: Finished difference Result 315 states and 404 transitions. [2025-03-09 02:11:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:11:08,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 75 [2025-03-09 02:11:08,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:08,457 INFO L225 Difference]: With dead ends: 315 [2025-03-09 02:11:08,457 INFO L226 Difference]: Without dead ends: 313 [2025-03-09 02:11:08,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 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 02:11:08,457 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 90 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:08,457 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 256 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:11:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-03-09 02:11:08,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2025-03-09 02:11:08,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6255924170616114) internal successors, (343), 270 states have internal predecessors, (343), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 389 transitions. [2025-03-09 02:11:08,468 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 389 transitions. Word has length 75 [2025-03-09 02:11:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:08,468 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 389 transitions. [2025-03-09 02:11:08,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 389 transitions. [2025-03-09 02:11:08,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-03-09 02:11:08,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:08,469 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:08,476 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 02:11:08,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:08,673 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:08,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1730359015, now seen corresponding path program 1 times [2025-03-09 02:11:08,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:08,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969639114] [2025-03-09 02:11:08,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:08,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:08,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-09 02:11:08,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-09 02:11:08,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:08,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:08,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391316483] [2025-03-09 02:11:08,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:08,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:08,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:08,689 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 02:11:08,690 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 02:11:08,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-03-09 02:11:08,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-03-09 02:11:08,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:08,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:08,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 02:11:08,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-09 02:11:08,802 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:08,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:08,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969639114] [2025-03-09 02:11:08,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:08,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391316483] [2025-03-09 02:11:08,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391316483] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:08,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:08,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:11:08,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875330879] [2025-03-09 02:11:08,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:08,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:11:08,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:08,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:11:08,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:11:08,803 INFO L87 Difference]: Start difference. First operand 296 states and 389 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:09,196 INFO L93 Difference]: Finished difference Result 315 states and 400 transitions. [2025-03-09 02:11:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:11:09,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 76 [2025-03-09 02:11:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:09,202 INFO L225 Difference]: With dead ends: 315 [2025-03-09 02:11:09,202 INFO L226 Difference]: Without dead ends: 313 [2025-03-09 02:11:09,202 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 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 02:11:09,203 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 54 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:09,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 323 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:11:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-03-09 02:11:09,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2025-03-09 02:11:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.6066350710900474) internal successors, (339), 270 states have internal predecessors, (339), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 385 transitions. [2025-03-09 02:11:09,226 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 385 transitions. Word has length 76 [2025-03-09 02:11:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:09,227 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 385 transitions. [2025-03-09 02:11:09,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 385 transitions. [2025-03-09 02:11:09,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-09 02:11:09,227 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:09,227 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:09,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-09 02:11:09,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:09,428 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:09,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:09,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1562651670, now seen corresponding path program 1 times [2025-03-09 02:11:09,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:09,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434297073] [2025-03-09 02:11:09,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:09,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:09,431 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 02:11:09,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 02:11:09,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:09,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:09,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480172216] [2025-03-09 02:11:09,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:09,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:09,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:09,441 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 02:11:09,443 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 02:11:09,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-09 02:11:09,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-09 02:11:09,483 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:09,483 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:09,483 INFO L256 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-09 02:11:09,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:09,584 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-03-09 02:11:09,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-03-09 02:11:09,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:09,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434297073] [2025-03-09 02:11:09,725 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:09,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480172216] [2025-03-09 02:11:09,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480172216] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:11:09,725 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:11:09,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-09 02:11:09,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644482469] [2025-03-09 02:11:09,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:09,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:11:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:09,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:11:09,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:11:09,726 INFO L87 Difference]: Start difference. First operand 296 states and 385 transitions. Second operand has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-09 02:11:10,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:10,148 INFO L93 Difference]: Finished difference Result 314 states and 386 transitions. [2025-03-09 02:11:10,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:11:10,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 81 [2025-03-09 02:11:10,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:10,150 INFO L225 Difference]: With dead ends: 314 [2025-03-09 02:11:10,150 INFO L226 Difference]: Without dead ends: 313 [2025-03-09 02:11:10,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:10,150 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 295 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:10,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 353 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:11:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2025-03-09 02:11:10,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 296. [2025-03-09 02:11:10,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5924170616113744) internal successors, (336), 270 states have internal predecessors, (336), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 382 transitions. [2025-03-09 02:11:10,159 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 382 transitions. Word has length 81 [2025-03-09 02:11:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:10,159 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 382 transitions. [2025-03-09 02:11:10,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.0) internal successors, (80), 7 states have internal predecessors, (80), 3 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-09 02:11:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 382 transitions. [2025-03-09 02:11:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-09 02:11:10,160 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:10,160 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:10,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:10,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:10,362 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:10,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:10,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1197561471, now seen corresponding path program 1 times [2025-03-09 02:11:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:10,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562401806] [2025-03-09 02:11:10,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:10,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:10,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 02:11:10,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 02:11:10,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:10,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:10,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [603666649] [2025-03-09 02:11:10,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:10,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:10,386 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 02:11:10,388 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 02:11:10,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-09 02:11:10,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-09 02:11:10,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:10,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:10,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:11:10,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-09 02:11:10,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:10,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:10,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562401806] [2025-03-09 02:11:10,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:10,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603666649] [2025-03-09 02:11:10,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603666649] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:10,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:10,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2025-03-09 02:11:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730005312] [2025-03-09 02:11:10,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:10,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 02:11:10,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:10,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 02:11:10,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:10,947 INFO L87 Difference]: Start difference. First operand 296 states and 382 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-09 02:11:11,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:11,146 INFO L93 Difference]: Finished difference Result 300 states and 383 transitions. [2025-03-09 02:11:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:11:11,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 82 [2025-03-09 02:11:11,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:11,148 INFO L225 Difference]: With dead ends: 300 [2025-03-09 02:11:11,148 INFO L226 Difference]: Without dead ends: 299 [2025-03-09 02:11:11,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:11,148 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 261 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:11,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 301 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:11:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2025-03-09 02:11:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 296. [2025-03-09 02:11:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5829383886255923) internal successors, (334), 270 states have internal predecessors, (334), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 380 transitions. [2025-03-09 02:11:11,158 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 380 transitions. Word has length 82 [2025-03-09 02:11:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:11,160 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 380 transitions. [2025-03-09 02:11:11,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-09 02:11:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 380 transitions. [2025-03-09 02:11:11,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-09 02:11:11,161 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:11,161 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:11,167 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 02:11:11,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:11,362 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:11,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:11,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1530300104, now seen corresponding path program 1 times [2025-03-09 02:11:11,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:11,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572298585] [2025-03-09 02:11:11,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:11,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:11,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-09 02:11:11,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-09 02:11:11,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:11,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:11,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852646469] [2025-03-09 02:11:11,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:11,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:11,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:11,372 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 02:11:11,374 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 02:11:11,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-09 02:11:11,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-09 02:11:11,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:11,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:11,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-09 02:11:11,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:11,673 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-03-09 02:11:11,673 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:11,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:11,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572298585] [2025-03-09 02:11:11,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:11,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852646469] [2025-03-09 02:11:11,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852646469] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:11,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:11,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:11:11,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137533605] [2025-03-09 02:11:11,944 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:11,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:11,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:11,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:11,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:11,944 INFO L87 Difference]: Start difference. First operand 296 states and 380 transitions. Second operand has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:12,387 INFO L93 Difference]: Finished difference Result 314 states and 391 transitions. [2025-03-09 02:11:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:11:12,388 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2025-03-09 02:11:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:12,389 INFO L225 Difference]: With dead ends: 314 [2025-03-09 02:11:12,389 INFO L226 Difference]: Without dead ends: 311 [2025-03-09 02:11:12,389 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:12,389 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 190 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:12,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 273 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:11:12,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2025-03-09 02:11:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 296. [2025-03-09 02:11:12,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5545023696682465) internal successors, (328), 270 states have internal predecessors, (328), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:12,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 374 transitions. [2025-03-09 02:11:12,400 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 374 transitions. Word has length 83 [2025-03-09 02:11:12,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:12,400 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 374 transitions. [2025-03-09 02:11:12,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2025-03-09 02:11:12,400 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 374 transitions. [2025-03-09 02:11:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-03-09 02:11:12,401 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:12,401 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:12,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-09 02:11:12,601 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,SelfDestructingSolverStorable24 [2025-03-09 02:11:12,601 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:12,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 194663007, now seen corresponding path program 1 times [2025-03-09 02:11:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3152087] [2025-03-09 02:11:12,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:12,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-09 02:11:12,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 02:11:12,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:12,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:12,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359551068] [2025-03-09 02:11:12,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:12,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:12,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:12,613 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 02:11:12,615 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 02:11:12,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-03-09 02:11:12,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-03-09 02:11:12,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:12,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:12,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-09 02:11:12,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-03-09 02:11:13,012 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:13,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:13,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3152087] [2025-03-09 02:11:13,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:13,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359551068] [2025-03-09 02:11:13,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359551068] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:13,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:13,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:11:13,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466238367] [2025-03-09 02:11:13,111 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:13,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:13,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:13,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:13,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:11:13,112 INFO L87 Difference]: Start difference. First operand 296 states and 374 transitions. Second operand has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-09 02:11:13,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:13,478 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2025-03-09 02:11:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:13,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 84 [2025-03-09 02:11:13,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:13,480 INFO L225 Difference]: With dead ends: 304 [2025-03-09 02:11:13,480 INFO L226 Difference]: Without dead ends: 301 [2025-03-09 02:11:13,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:13,480 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 136 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:13,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 255 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:13,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2025-03-09 02:11:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 296. [2025-03-09 02:11:13,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 211 states have (on average 1.5260663507109005) internal successors, (322), 270 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:13,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 368 transitions. [2025-03-09 02:11:13,491 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 368 transitions. Word has length 84 [2025-03-09 02:11:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:13,491 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 368 transitions. [2025-03-09 02:11:13,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2025-03-09 02:11:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 368 transitions. [2025-03-09 02:11:13,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-09 02:11:13,492 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:13,492 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:13,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-09 02:11:13,692 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,SelfDestructingSolverStorable25 [2025-03-09 02:11:13,693 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:13,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 409956278, now seen corresponding path program 1 times [2025-03-09 02:11:13,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016692475] [2025-03-09 02:11:13,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:13,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-09 02:11:13,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-09 02:11:13,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:13,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:13,722 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:13,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:13,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016692475] [2025-03-09 02:11:13,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016692475] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:13,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:13,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:11:13,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218398966] [2025-03-09 02:11:13,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:13,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 02:11:13,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:13,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 02:11:13,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:11:13,723 INFO L87 Difference]: Start difference. First operand 296 states and 368 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-09 02:11:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:13,784 INFO L93 Difference]: Finished difference Result 296 states and 368 transitions. [2025-03-09 02:11:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 02:11:13,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 97 [2025-03-09 02:11:13,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:13,786 INFO L225 Difference]: With dead ends: 296 [2025-03-09 02:11:13,786 INFO L226 Difference]: Without dead ends: 295 [2025-03-09 02:11:13,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 02:11:13,786 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:13,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 281 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:11:13,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2025-03-09 02:11:13,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2025-03-09 02:11:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.5071090047393365) internal successors, (318), 269 states have internal predecessors, (318), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:13,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 364 transitions. [2025-03-09 02:11:13,794 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 364 transitions. Word has length 97 [2025-03-09 02:11:13,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:13,795 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 364 transitions. [2025-03-09 02:11:13,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-09 02:11:13,795 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 364 transitions. [2025-03-09 02:11:13,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-09 02:11:13,795 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:13,795 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:13,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-09 02:11:13,795 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:13,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash -176257250, now seen corresponding path program 1 times [2025-03-09 02:11:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:13,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721319649] [2025-03-09 02:11:13,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:13,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-09 02:11:13,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-09 02:11:13,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:13,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:13,867 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:13,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:13,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721319649] [2025-03-09 02:11:13,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721319649] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:13,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:13,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 02:11:13,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116182193] [2025-03-09 02:11:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:13,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 02:11:13,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:13,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 02:11:13,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 02:11:13,868 INFO L87 Difference]: Start difference. First operand 295 states and 364 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 02:11:14,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:14,361 INFO L93 Difference]: Finished difference Result 299 states and 365 transitions. [2025-03-09 02:11:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:11:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 98 [2025-03-09 02:11:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:14,362 INFO L225 Difference]: With dead ends: 299 [2025-03-09 02:11:14,362 INFO L226 Difference]: Without dead ends: 298 [2025-03-09 02:11:14,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:14,363 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 449 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:14,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 217 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 02:11:14,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2025-03-09 02:11:14,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2025-03-09 02:11:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 211 states have (on average 1.5023696682464456) internal successors, (317), 269 states have internal predecessors, (317), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:14,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 363 transitions. [2025-03-09 02:11:14,371 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 363 transitions. Word has length 98 [2025-03-09 02:11:14,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:14,372 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 363 transitions. [2025-03-09 02:11:14,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 02:11:14,372 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 363 transitions. [2025-03-09 02:11:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-09 02:11:14,372 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:14,372 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:14,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-09 02:11:14,372 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:14,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1880631141, now seen corresponding path program 1 times [2025-03-09 02:11:14,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:14,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549860923] [2025-03-09 02:11:14,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:14,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:14,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-09 02:11:14,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-09 02:11:14,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:14,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:14,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:14,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549860923] [2025-03-09 02:11:14,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549860923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:14,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:14,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:11:14,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502235414] [2025-03-09 02:11:14,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:14,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:11:14,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:14,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:11:14,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:14,437 INFO L87 Difference]: Start difference. First operand 295 states and 363 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-09 02:11:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:14,774 INFO L93 Difference]: Finished difference Result 310 states and 374 transitions. [2025-03-09 02:11:14,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:11:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2025-03-09 02:11:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:14,776 INFO L225 Difference]: With dead ends: 310 [2025-03-09 02:11:14,776 INFO L226 Difference]: Without dead ends: 309 [2025-03-09 02:11:14,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:14,776 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 13 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:14,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 507 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2025-03-09 02:11:14,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 300. [2025-03-09 02:11:14,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 216 states have (on average 1.4907407407407407) internal successors, (322), 274 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 368 transitions. [2025-03-09 02:11:14,799 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 368 transitions. Word has length 100 [2025-03-09 02:11:14,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:14,800 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 368 transitions. [2025-03-09 02:11:14,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-09 02:11:14,800 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 368 transitions. [2025-03-09 02:11:14,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-09 02:11:14,800 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:14,800 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:14,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-09 02:11:14,800 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:14,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1829976780, now seen corresponding path program 1 times [2025-03-09 02:11:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:14,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466117693] [2025-03-09 02:11:14,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:14,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-09 02:11:14,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-09 02:11:14,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:14,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:14,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774728862] [2025-03-09 02:11:14,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:14,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:14,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:14,812 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 02:11:14,813 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 02:11:14,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-09 02:11:14,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-09 02:11:14,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:14,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:14,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:11:14,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:14,966 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:14,966 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:14,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:14,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466117693] [2025-03-09 02:11:14,966 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:14,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774728862] [2025-03-09 02:11:14,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774728862] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:14,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:14,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 02:11:14,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933101515] [2025-03-09 02:11:14,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:14,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 02:11:14,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:14,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 02:11:14,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 02:11:14,967 INFO L87 Difference]: Start difference. First operand 300 states and 368 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-09 02:11:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:15,167 INFO L93 Difference]: Finished difference Result 310 states and 372 transitions. [2025-03-09 02:11:15,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 02:11:15,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2025-03-09 02:11:15,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:15,168 INFO L225 Difference]: With dead ends: 310 [2025-03-09 02:11:15,168 INFO L226 Difference]: Without dead ends: 309 [2025-03-09 02:11:15,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 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 02:11:15,169 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 15 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:15,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 307 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:11:15,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2025-03-09 02:11:15,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 302. [2025-03-09 02:11:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.4862385321100917) internal successors, (324), 276 states have internal predecessors, (324), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 370 transitions. [2025-03-09 02:11:15,178 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 370 transitions. Word has length 101 [2025-03-09 02:11:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:15,178 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 370 transitions. [2025-03-09 02:11:15,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-09 02:11:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 370 transitions. [2025-03-09 02:11:15,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-09 02:11:15,178 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:15,179 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:15,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-09 02:11:15,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:15,379 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:15,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:15,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1865286152, now seen corresponding path program 1 times [2025-03-09 02:11:15,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:15,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214733263] [2025-03-09 02:11:15,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:15,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:15,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-09 02:11:15,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-09 02:11:15,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:15,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:15,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546911668] [2025-03-09 02:11:15,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:15,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:15,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:15,394 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 02:11:15,395 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 02:11:15,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-09 02:11:15,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-09 02:11:15,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:15,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:15,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:11:15,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-09 02:11:15,564 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:15,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:15,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214733263] [2025-03-09 02:11:15,608 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:15,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546911668] [2025-03-09 02:11:15,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546911668] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:15,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:15,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:11:15,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267562035] [2025-03-09 02:11:15,608 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:15,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:15,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:15,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:15,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:15,609 INFO L87 Difference]: Start difference. First operand 302 states and 370 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-09 02:11:15,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:15,922 INFO L93 Difference]: Finished difference Result 305 states and 370 transitions. [2025-03-09 02:11:15,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:11:15,922 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2025-03-09 02:11:15,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:15,924 INFO L225 Difference]: With dead ends: 305 [2025-03-09 02:11:15,924 INFO L226 Difference]: Without dead ends: 303 [2025-03-09 02:11:15,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2025-03-09 02:11:15,924 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 195 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:15,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 451 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:15,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2025-03-09 02:11:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2025-03-09 02:11:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 218 states have (on average 1.4770642201834863) internal successors, (322), 276 states have internal predecessors, (322), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2025-03-09 02:11:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 368 transitions. [2025-03-09 02:11:15,933 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 368 transitions. Word has length 101 [2025-03-09 02:11:15,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:15,933 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 368 transitions. [2025-03-09 02:11:15,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 3 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-09 02:11:15,934 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 368 transitions. [2025-03-09 02:11:15,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-09 02:11:15,934 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:15,934 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:15,940 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 02:11:16,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:16,135 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:16,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1989295962, now seen corresponding path program 1 times [2025-03-09 02:11:16,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:16,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162308584] [2025-03-09 02:11:16,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:16,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:16,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-09 02:11:16,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-09 02:11:16,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:16,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:16,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1927844158] [2025-03-09 02:11:16,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:16,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:16,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:16,149 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 02:11:16,151 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 02:11:16,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-09 02:11:16,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-09 02:11:16,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:16,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:16,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-09 02:11:16,198 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-03-09 02:11:16,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:16,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:16,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162308584] [2025-03-09 02:11:16,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:16,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927844158] [2025-03-09 02:11:16,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927844158] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:16,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:16,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:11:16,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760485467] [2025-03-09 02:11:16,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:16,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:11:16,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:16,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:11:16,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:11:16,505 INFO L87 Difference]: Start difference. First operand 302 states and 368 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 02:11:16,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:16,816 INFO L93 Difference]: Finished difference Result 351 states and 424 transitions. [2025-03-09 02:11:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:16,817 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 102 [2025-03-09 02:11:16,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:16,818 INFO L225 Difference]: With dead ends: 351 [2025-03-09 02:11:16,818 INFO L226 Difference]: Without dead ends: 349 [2025-03-09 02:11:16,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:11:16,818 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 462 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:16,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 408 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2025-03-09 02:11:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 347. [2025-03-09 02:11:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.416988416988417) internal successors, (367), 317 states have internal predecessors, (367), 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 02:11:16,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 421 transitions. [2025-03-09 02:11:16,831 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 421 transitions. Word has length 102 [2025-03-09 02:11:16,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:16,832 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 421 transitions. [2025-03-09 02:11:16,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-09 02:11:16,832 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 421 transitions. [2025-03-09 02:11:16,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-09 02:11:16,832 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:16,832 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:16,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:17,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:17,033 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:17,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:17,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1538632774, now seen corresponding path program 1 times [2025-03-09 02:11:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113965579] [2025-03-09 02:11:17,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:17,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-09 02:11:17,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-09 02:11:17,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:17,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:17,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:17,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113965579] [2025-03-09 02:11:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113965579] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:17,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:17,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:11:17,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250786942] [2025-03-09 02:11:17,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:17,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:11:17,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:17,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:11:17,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:17,082 INFO L87 Difference]: Start difference. First operand 347 states and 421 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-09 02:11:17,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:17,292 INFO L93 Difference]: Finished difference Result 379 states and 421 transitions. [2025-03-09 02:11:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 02:11:17,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 103 [2025-03-09 02:11:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:17,293 INFO L225 Difference]: With dead ends: 379 [2025-03-09 02:11:17,293 INFO L226 Difference]: Without dead ends: 378 [2025-03-09 02:11:17,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:11:17,294 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 134 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:17,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 546 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:11:17,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-03-09 02:11:17,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 347. [2025-03-09 02:11:17,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 259 states have (on average 1.4054054054054055) internal successors, (364), 317 states have internal predecessors, (364), 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 02:11:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 418 transitions. [2025-03-09 02:11:17,306 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 418 transitions. Word has length 103 [2025-03-09 02:11:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:17,306 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 418 transitions. [2025-03-09 02:11:17,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-09 02:11:17,306 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 418 transitions. [2025-03-09 02:11:17,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-09 02:11:17,307 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:17,307 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:17,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-09 02:11:17,307 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:17,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:17,307 INFO L85 PathProgramCache]: Analyzing trace with hash 818369751, now seen corresponding path program 1 times [2025-03-09 02:11:17,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:17,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778938211] [2025-03-09 02:11:17,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:17,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:17,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-09 02:11:17,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-09 02:11:17,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:17,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:17,359 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:17,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:17,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778938211] [2025-03-09 02:11:17,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778938211] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:17,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:17,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:11:17,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575714439] [2025-03-09 02:11:17,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:17,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:11:17,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:17,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:11:17,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:17,361 INFO L87 Difference]: Start difference. First operand 347 states and 418 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-09 02:11:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:17,709 INFO L93 Difference]: Finished difference Result 360 states and 428 transitions. [2025-03-09 02:11:17,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:11:17,710 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2025-03-09 02:11:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:17,711 INFO L225 Difference]: With dead ends: 360 [2025-03-09 02:11:17,711 INFO L226 Difference]: Without dead ends: 359 [2025-03-09 02:11:17,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:17,711 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 12 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:17,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 514 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2025-03-09 02:11:17,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 352. [2025-03-09 02:11:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.4053030303030303) internal successors, (371), 322 states have internal predecessors, (371), 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 02:11:17,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 425 transitions. [2025-03-09 02:11:17,723 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 425 transitions. Word has length 104 [2025-03-09 02:11:17,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:17,723 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 425 transitions. [2025-03-09 02:11:17,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-03-09 02:11:17,723 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 425 transitions. [2025-03-09 02:11:17,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-09 02:11:17,723 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:17,724 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:17,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-09 02:11:17,724 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:17,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash 452975832, now seen corresponding path program 1 times [2025-03-09 02:11:17,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:17,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608458548] [2025-03-09 02:11:17,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:17,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:17,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-09 02:11:17,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-09 02:11:17,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:17,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:17,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284698897] [2025-03-09 02:11:17,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:17,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:17,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:17,738 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 02:11:17,745 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 02:11:17,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-09 02:11:17,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-09 02:11:17,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:17,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:17,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-03-09 02:11:17,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-09 02:11:17,988 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-03-09 02:11:18,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:18,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608458548] [2025-03-09 02:11:18,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:18,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284698897] [2025-03-09 02:11:18,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284698897] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:11:18,138 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:11:18,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2025-03-09 02:11:18,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184818790] [2025-03-09 02:11:18,138 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:18,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-09 02:11:18,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:18,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-09 02:11:18,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:11:18,139 INFO L87 Difference]: Start difference. First operand 352 states and 425 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-09 02:11:19,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:19,001 INFO L93 Difference]: Finished difference Result 357 states and 426 transitions. [2025-03-09 02:11:19,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-09 02:11:19,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) Word has length 104 [2025-03-09 02:11:19,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:19,002 INFO L225 Difference]: With dead ends: 357 [2025-03-09 02:11:19,002 INFO L226 Difference]: Without dead ends: 356 [2025-03-09 02:11:19,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2025-03-09 02:11:19,003 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 355 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1070 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1070 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:19,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 772 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1070 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 02:11:19,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-03-09 02:11:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2025-03-09 02:11:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 264 states have (on average 1.393939393939394) internal successors, (368), 322 states have internal predecessors, (368), 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 02:11:19,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 422 transitions. [2025-03-09 02:11:19,016 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 422 transitions. Word has length 104 [2025-03-09 02:11:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:19,016 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 422 transitions. [2025-03-09 02:11:19,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 14 states have internal predecessors, (114), 7 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (20), 6 states have call predecessors, (20), 7 states have call successors, (20) [2025-03-09 02:11:19,016 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 422 transitions. [2025-03-09 02:11:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-09 02:11:19,017 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:19,017 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:19,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-09 02:11:19,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-03-09 02:11:19,217 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:19,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:19,218 INFO L85 PathProgramCache]: Analyzing trace with hash -400341496, now seen corresponding path program 1 times [2025-03-09 02:11:19,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:19,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520366933] [2025-03-09 02:11:19,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:19,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:19,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-09 02:11:19,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-09 02:11:19,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:19,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:19,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60190522] [2025-03-09 02:11:19,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:19,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:19,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:19,230 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:19,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-09 02:11:19,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-09 02:11:19,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-09 02:11:19,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:19,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:19,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 02:11:19,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:19,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:19,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520366933] [2025-03-09 02:11:19,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60190522] [2025-03-09 02:11:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60190522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:19,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:11:19,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 02:11:19,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733993234] [2025-03-09 02:11:19,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:19,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 02:11:19,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:19,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 02:11:19,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:19,372 INFO L87 Difference]: Start difference. First operand 352 states and 422 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-09 02:11:19,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:19,486 INFO L93 Difference]: Finished difference Result 358 states and 425 transitions. [2025-03-09 02:11:19,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 02:11:19,487 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 105 [2025-03-09 02:11:19,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:19,488 INFO L225 Difference]: With dead ends: 358 [2025-03-09 02:11:19,488 INFO L226 Difference]: Without dead ends: 357 [2025-03-09 02:11:19,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 02:11:19,488 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 58 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:19,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 430 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:11:19,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-03-09 02:11:19,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 354. [2025-03-09 02:11:19,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 266 states have (on average 1.3909774436090225) internal successors, (370), 324 states have internal predecessors, (370), 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 02:11:19,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 424 transitions. [2025-03-09 02:11:19,501 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 424 transitions. Word has length 105 [2025-03-09 02:11:19,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:19,501 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 424 transitions. [2025-03-09 02:11:19,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-09 02:11:19,501 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 424 transitions. [2025-03-09 02:11:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-09 02:11:19,502 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:19,502 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:19,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-09 02:11:19,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-09 02:11:19,703 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:19,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1818882205, now seen corresponding path program 1 times [2025-03-09 02:11:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:19,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802791405] [2025-03-09 02:11:19,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:19,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:19,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-09 02:11:19,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-09 02:11:19,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:19,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-09 02:11:19,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:19,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802791405] [2025-03-09 02:11:19,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802791405] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:19,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917306424] [2025-03-09 02:11:19,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:19,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:19,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:19,815 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:19,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-09 02:11:19,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-09 02:11:19,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-09 02:11:19,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:19,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:19,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 02:11:19,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-09 02:11:20,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-09 02:11:20,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917306424] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:11:20,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 02:11:20,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2025-03-09 02:11:20,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101128927] [2025-03-09 02:11:20,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:20,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-09 02:11:20,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:20,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-09 02:11:20,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:11:20,338 INFO L87 Difference]: Start difference. First operand 354 states and 424 transitions. Second operand has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2025-03-09 02:11:21,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:21,093 INFO L93 Difference]: Finished difference Result 741 states and 854 transitions. [2025-03-09 02:11:21,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:11:21,093 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 107 [2025-03-09 02:11:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:21,095 INFO L225 Difference]: With dead ends: 741 [2025-03-09 02:11:21,095 INFO L226 Difference]: Without dead ends: 712 [2025-03-09 02:11:21,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=509, Unknown=0, NotChecked=0, Total=650 [2025-03-09 02:11:21,096 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 1090 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:21,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 914 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-09 02:11:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2025-03-09 02:11:21,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 505. [2025-03-09 02:11:21,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 405 states have (on average 1.5555555555555556) internal successors, (630), 463 states have internal predecessors, (630), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2025-03-09 02:11:21,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 708 transitions. [2025-03-09 02:11:21,114 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 708 transitions. Word has length 107 [2025-03-09 02:11:21,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:21,114 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 708 transitions. [2025-03-09 02:11:21,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.833333333333334) internal successors, (177), 17 states have internal predecessors, (177), 10 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2025-03-09 02:11:21,115 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 708 transitions. [2025-03-09 02:11:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-09 02:11:21,115 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:21,115 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:21,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:21,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:21,316 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:21,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:21,316 INFO L85 PathProgramCache]: Analyzing trace with hash -105728768, now seen corresponding path program 1 times [2025-03-09 02:11:21,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:21,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39429655] [2025-03-09 02:11:21,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:21,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:21,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-09 02:11:21,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-09 02:11:21,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:21,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-03-09 02:11:21,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39429655] [2025-03-09 02:11:21,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39429655] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689232181] [2025-03-09 02:11:21,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:21,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:21,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:21,472 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:21,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-09 02:11:21,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-09 02:11:21,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-09 02:11:21,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:21,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:21,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-09 02:11:21,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:21,621 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:21,621 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:11:21,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689232181] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:11:21,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:21,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2025-03-09 02:11:21,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381031684] [2025-03-09 02:11:21,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:11:21,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:21,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:21,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:21,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:11:21,622 INFO L87 Difference]: Start difference. First operand 505 states and 708 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-09 02:11:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:22,530 INFO L93 Difference]: Finished difference Result 958 states and 1282 transitions. [2025-03-09 02:11:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-03-09 02:11:22,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2025-03-09 02:11:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:22,533 INFO L225 Difference]: With dead ends: 958 [2025-03-09 02:11:22,533 INFO L226 Difference]: Without dead ends: 957 [2025-03-09 02:11:22,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2025-03-09 02:11:22,534 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 820 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:22,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 793 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 02:11:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2025-03-09 02:11:22,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 698. [2025-03-09 02:11:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 582 states have (on average 1.6494845360824741) internal successors, (960), 640 states have internal predecessors, (960), 55 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2025-03-09 02:11:22,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1070 transitions. [2025-03-09 02:11:22,558 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1070 transitions. Word has length 109 [2025-03-09 02:11:22,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:22,558 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1070 transitions. [2025-03-09 02:11:22,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-09 02:11:22,558 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1070 transitions. [2025-03-09 02:11:22,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-09 02:11:22,559 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:22,559 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:22,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:22,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-09 02:11:22,760 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:22,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:22,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1017375582, now seen corresponding path program 1 times [2025-03-09 02:11:22,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:22,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259208777] [2025-03-09 02:11:22,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:22,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:22,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-09 02:11:22,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-09 02:11:22,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:22,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:22,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902683918] [2025-03-09 02:11:22,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:22,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:22,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:22,779 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:22,780 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-09 02:11:22,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-09 02:11:22,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-09 02:11:22,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:22,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:22,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-09 02:11:22,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:22,891 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:22,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:22,994 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-03-09 02:11:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259208777] [2025-03-09 02:11:22,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902683918] [2025-03-09 02:11:22,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902683918] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 02:11:22,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-09 02:11:22,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2025-03-09 02:11:22,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909300083] [2025-03-09 02:11:22,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:22,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-09 02:11:22,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:22,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-09 02:11:22,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:22,996 INFO L87 Difference]: Start difference. First operand 698 states and 1070 transitions. Second operand has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2025-03-09 02:11:25,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-03-09 02:11:26,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:26,278 INFO L93 Difference]: Finished difference Result 1100 states and 1653 transitions. [2025-03-09 02:11:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:11:26,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 110 [2025-03-09 02:11:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:26,281 INFO L225 Difference]: With dead ends: 1100 [2025-03-09 02:11:26,281 INFO L226 Difference]: Without dead ends: 1099 [2025-03-09 02:11:26,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:11:26,282 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 686 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 36 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:26,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 700 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 811 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2025-03-09 02:11:26,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1099 states. [2025-03-09 02:11:26,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1099 to 851. [2025-03-09 02:11:26,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 723 states have (on average 1.6763485477178424) internal successors, (1212), 781 states have internal predecessors, (1212), 67 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2025-03-09 02:11:26,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1346 transitions. [2025-03-09 02:11:26,312 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1346 transitions. Word has length 110 [2025-03-09 02:11:26,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:26,312 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1346 transitions. [2025-03-09 02:11:26,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.777777777777779) internal successors, (124), 10 states have internal predecessors, (124), 5 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2025-03-09 02:11:26,313 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1346 transitions. [2025-03-09 02:11:26,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-09 02:11:26,313 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:26,313 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:11:26,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:26,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-03-09 02:11:26,514 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:26,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:26,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1109971013, now seen corresponding path program 1 times [2025-03-09 02:11:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:26,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541777626] [2025-03-09 02:11:26,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:26,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:26,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-09 02:11:26,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-09 02:11:26,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:26,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:26,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [317678182] [2025-03-09 02:11:26,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:26,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:26,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:26,527 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:26,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-09 02:11:26,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-09 02:11:26,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-09 02:11:26,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:26,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:26,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 02:11:26,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-09 02:11:27,011 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:27,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:27,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541777626] [2025-03-09 02:11:27,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:27,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317678182] [2025-03-09 02:11:27,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317678182] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:27,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:27,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:11:27,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749237852] [2025-03-09 02:11:27,138 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:27,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:11:27,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:27,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:11:27,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:11:27,138 INFO L87 Difference]: Start difference. First operand 851 states and 1346 transitions. Second operand has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2025-03-09 02:11:27,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:27,855 INFO L93 Difference]: Finished difference Result 937 states and 1453 transitions. [2025-03-09 02:11:27,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:11:27,856 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 116 [2025-03-09 02:11:27,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:27,859 INFO L225 Difference]: With dead ends: 937 [2025-03-09 02:11:27,859 INFO L226 Difference]: Without dead ends: 934 [2025-03-09 02:11:27,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:11:27,860 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 614 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:27,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 386 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-09 02:11:27,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2025-03-09 02:11:27,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2025-03-09 02:11:27,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.6796875) internal successors, (1290), 826 states have internal predecessors, (1290), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-09 02:11:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1432 transitions. [2025-03-09 02:11:27,901 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1432 transitions. Word has length 116 [2025-03-09 02:11:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:27,902 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1432 transitions. [2025-03-09 02:11:27,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2025-03-09 02:11:27,903 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1432 transitions. [2025-03-09 02:11:27,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-09 02:11:27,903 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:27,903 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:27,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:28,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-09 02:11:28,108 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:28,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:28,109 INFO L85 PathProgramCache]: Analyzing trace with hash -49362946, now seen corresponding path program 1 times [2025-03-09 02:11:28,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:28,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338047771] [2025-03-09 02:11:28,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:28,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:28,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-09 02:11:28,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-09 02:11:28,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:28,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:28,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1743335281] [2025-03-09 02:11:28,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:28,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:28,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:28,123 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:28,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-09 02:11:28,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-09 02:11:28,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-09 02:11:28,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:28,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:28,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-03-09 02:11:28,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:28,595 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 26 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-09 02:11:28,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:28,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:28,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338047771] [2025-03-09 02:11:28,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:28,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743335281] [2025-03-09 02:11:28,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743335281] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:28,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:28,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:11:28,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028087395] [2025-03-09 02:11:28,943 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:28,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:11:28,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:28,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:11:28,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2025-03-09 02:11:28,944 INFO L87 Difference]: Start difference. First operand 900 states and 1432 transitions. Second operand has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2025-03-09 02:11:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:29,606 INFO L93 Difference]: Finished difference Result 935 states and 1448 transitions. [2025-03-09 02:11:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 02:11:29,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 117 [2025-03-09 02:11:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:29,609 INFO L225 Difference]: With dead ends: 935 [2025-03-09 02:11:29,609 INFO L226 Difference]: Without dead ends: 934 [2025-03-09 02:11:29,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2025-03-09 02:11:29,610 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 483 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:29,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 423 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 02:11:29,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2025-03-09 02:11:29,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 900. [2025-03-09 02:11:29,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 768 states have (on average 1.6770833333333333) internal successors, (1288), 826 states have internal predecessors, (1288), 71 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2025-03-09 02:11:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1430 transitions. [2025-03-09 02:11:29,637 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1430 transitions. Word has length 117 [2025-03-09 02:11:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:29,637 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1430 transitions. [2025-03-09 02:11:29,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.1) internal successors, (71), 10 states have internal predecessors, (71), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2025-03-09 02:11:29,638 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1430 transitions. [2025-03-09 02:11:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-09 02:11:29,638 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:29,638 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:29,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-03-09 02:11:29,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:29,839 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:29,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1530251239, now seen corresponding path program 1 times [2025-03-09 02:11:29,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:29,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358093477] [2025-03-09 02:11:29,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:29,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:29,843 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-09 02:11:29,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 02:11:29,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:29,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:29,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415623679] [2025-03-09 02:11:29,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:29,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:29,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:29,853 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:29,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-09 02:11:29,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-09 02:11:29,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-09 02:11:29,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:29,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:29,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 02:11:29,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-09 02:11:30,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:30,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:30,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358093477] [2025-03-09 02:11:30,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:30,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415623679] [2025-03-09 02:11:30,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415623679] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:30,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:30,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:11:30,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772314502] [2025-03-09 02:11:30,161 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:30,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:30,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:30,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:30,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:30,161 INFO L87 Difference]: Start difference. First operand 900 states and 1430 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-09 02:11:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:30,461 INFO L93 Difference]: Finished difference Result 1041 states and 1633 transitions. [2025-03-09 02:11:30,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-09 02:11:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 118 [2025-03-09 02:11:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:30,463 INFO L225 Difference]: With dead ends: 1041 [2025-03-09 02:11:30,464 INFO L226 Difference]: Without dead ends: 1039 [2025-03-09 02:11:30,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:11:30,464 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 304 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:30,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 431 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:30,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2025-03-09 02:11:30,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1000. [2025-03-09 02:11:30,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 859 states have (on average 1.6938300349243307) internal successors, (1455), 917 states have internal predecessors, (1455), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-09 02:11:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1615 transitions. [2025-03-09 02:11:30,496 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1615 transitions. Word has length 118 [2025-03-09 02:11:30,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:30,496 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1615 transitions. [2025-03-09 02:11:30,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-09 02:11:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1615 transitions. [2025-03-09 02:11:30,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-09 02:11:30,497 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:30,497 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:30,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-09 02:11:30,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:30,698 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:30,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:30,698 INFO L85 PathProgramCache]: Analyzing trace with hash -193148068, now seen corresponding path program 1 times [2025-03-09 02:11:30,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:30,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790360853] [2025-03-09 02:11:30,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:30,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:30,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-09 02:11:30,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-09 02:11:30,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:30,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:30,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186116203] [2025-03-09 02:11:30,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:30,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:30,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:30,711 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:30,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-09 02:11:30,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-09 02:11:30,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-09 02:11:30,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:30,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:30,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-09 02:11:30,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-09 02:11:30,975 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:31,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790360853] [2025-03-09 02:11:31,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:31,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186116203] [2025-03-09 02:11:31,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186116203] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:31,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:31,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:11:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210882141] [2025-03-09 02:11:31,149 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:31,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:31,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:31,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:31,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-09 02:11:31,150 INFO L87 Difference]: Start difference. First operand 1000 states and 1615 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-09 02:11:31,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:31,429 INFO L93 Difference]: Finished difference Result 1041 states and 1628 transitions. [2025-03-09 02:11:31,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:31,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 119 [2025-03-09 02:11:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:31,432 INFO L225 Difference]: With dead ends: 1041 [2025-03-09 02:11:31,432 INFO L226 Difference]: Without dead ends: 1039 [2025-03-09 02:11:31,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:11:31,433 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 282 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:31,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 570 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:11:31,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2025-03-09 02:11:31,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1001. [2025-03-09 02:11:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 860 states have (on average 1.6883720930232557) internal successors, (1452), 918 states have internal predecessors, (1452), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-09 02:11:31,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1612 transitions. [2025-03-09 02:11:31,467 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1612 transitions. Word has length 119 [2025-03-09 02:11:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:31,468 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1612 transitions. [2025-03-09 02:11:31,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-09 02:11:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1612 transitions. [2025-03-09 02:11:31,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-09 02:11:31,469 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:31,469 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:31,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:31,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-03-09 02:11:31,670 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:31,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:31,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1692622729, now seen corresponding path program 1 times [2025-03-09 02:11:31,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:31,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473289751] [2025-03-09 02:11:31,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:31,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:31,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-09 02:11:31,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-09 02:11:31,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:31,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:31,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375362178] [2025-03-09 02:11:31,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:31,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:31,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:31,682 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:31,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-03-09 02:11:31,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-09 02:11:31,727 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-09 02:11:31,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:31,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:31,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 02:11:31,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 3 proven. 32 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-03-09 02:11:31,978 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:32,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473289751] [2025-03-09 02:11:32,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:32,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375362178] [2025-03-09 02:11:32,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375362178] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:32,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:32,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:11:32,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862516841] [2025-03-09 02:11:32,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:32,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:11:32,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:32,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:11:32,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:11:32,020 INFO L87 Difference]: Start difference. First operand 1001 states and 1612 transitions. Second operand has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-09 02:11:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:32,542 INFO L93 Difference]: Finished difference Result 1042 states and 1623 transitions. [2025-03-09 02:11:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:32,543 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 120 [2025-03-09 02:11:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:32,545 INFO L225 Difference]: With dead ends: 1042 [2025-03-09 02:11:32,546 INFO L226 Difference]: Without dead ends: 1039 [2025-03-09 02:11:32,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:11:32,546 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 429 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:32,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 393 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 02:11:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2025-03-09 02:11:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1004. [2025-03-09 02:11:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 863 states have (on average 1.6825028968713789) internal successors, (1452), 921 states have internal predecessors, (1452), 80 states have call successors, (80), 2 states have call predecessors, (80), 2 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2025-03-09 02:11:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1612 transitions. [2025-03-09 02:11:32,589 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1612 transitions. Word has length 120 [2025-03-09 02:11:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:32,589 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1612 transitions. [2025-03-09 02:11:32,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2025-03-09 02:11:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1612 transitions. [2025-03-09 02:11:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-09 02:11:32,590 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:32,590 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:32,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2025-03-09 02:11:32,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-03-09 02:11:32,790 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:32,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash -931696966, now seen corresponding path program 1 times [2025-03-09 02:11:32,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:32,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802355933] [2025-03-09 02:11:32,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:32,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:32,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-09 02:11:32,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-09 02:11:32,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:32,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:32,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747883328] [2025-03-09 02:11:32,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:32,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:32,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:32,804 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:32,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-03-09 02:11:32,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-09 02:11:32,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-09 02:11:32,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:32,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:32,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-09 02:11:32,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-03-09 02:11:33,122 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:33,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802355933] [2025-03-09 02:11:33,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747883328] [2025-03-09 02:11:33,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747883328] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:33,155 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:33,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2025-03-09 02:11:33,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364218770] [2025-03-09 02:11:33,155 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:33,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:11:33,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:33,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:11:33,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:11:33,156 INFO L87 Difference]: Start difference. First operand 1004 states and 1612 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-09 02:11:33,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:33,596 INFO L93 Difference]: Finished difference Result 1041 states and 1617 transitions. [2025-03-09 02:11:33,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:33,596 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 121 [2025-03-09 02:11:33,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:33,598 INFO L225 Difference]: With dead ends: 1041 [2025-03-09 02:11:33,598 INFO L226 Difference]: Without dead ends: 1028 [2025-03-09 02:11:33,599 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:11:33,599 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 257 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:33,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 447 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:11:33,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2025-03-09 02:11:33,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2025-03-09 02:11:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6748251748251748) internal successors, (1437), 916 states have internal predecessors, (1437), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:11:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1595 transitions. [2025-03-09 02:11:33,630 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1595 transitions. Word has length 121 [2025-03-09 02:11:33,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:33,630 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1595 transitions. [2025-03-09 02:11:33,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2025-03-09 02:11:33,630 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1595 transitions. [2025-03-09 02:11:33,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-09 02:11:33,630 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:33,630 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:33,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2025-03-09 02:11:33,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-03-09 02:11:33,831 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:33,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1357902706, now seen corresponding path program 1 times [2025-03-09 02:11:33,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:33,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255474850] [2025-03-09 02:11:33,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:33,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:33,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-09 02:11:33,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-09 02:11:33,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:33,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:33,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502596155] [2025-03-09 02:11:33,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:33,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:33,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:33,842 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:33,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-03-09 02:11:33,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-09 02:11:33,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-09 02:11:33,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:33,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:33,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:11:33,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-09 02:11:34,190 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:42,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:42,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255474850] [2025-03-09 02:11:42,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:42,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502596155] [2025-03-09 02:11:42,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502596155] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:42,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:42,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:11:42,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917233058] [2025-03-09 02:11:42,372 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:42,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:11:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:42,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:11:42,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=95, Unknown=2, NotChecked=0, Total=132 [2025-03-09 02:11:42,372 INFO L87 Difference]: Start difference. First operand 998 states and 1595 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-09 02:11:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:42,700 INFO L93 Difference]: Finished difference Result 1043 states and 1627 transitions. [2025-03-09 02:11:42,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:42,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 127 [2025-03-09 02:11:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:42,703 INFO L225 Difference]: With dead ends: 1043 [2025-03-09 02:11:42,703 INFO L226 Difference]: Without dead ends: 1040 [2025-03-09 02:11:42,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=35, Invalid=95, Unknown=2, NotChecked=0, Total=132 [2025-03-09 02:11:42,704 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 355 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:42,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 550 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-09 02:11:42,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2025-03-09 02:11:42,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 998. [2025-03-09 02:11:42,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6643356643356644) internal successors, (1428), 916 states have internal predecessors, (1428), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:11:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1586 transitions. [2025-03-09 02:11:42,736 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1586 transitions. Word has length 127 [2025-03-09 02:11:42,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:42,736 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1586 transitions. [2025-03-09 02:11:42,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-09 02:11:42,737 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1586 transitions. [2025-03-09 02:11:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-09 02:11:42,737 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:42,737 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:42,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2025-03-09 02:11:42,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-03-09 02:11:42,938 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:42,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:42,938 INFO L85 PathProgramCache]: Analyzing trace with hash 854689150, now seen corresponding path program 1 times [2025-03-09 02:11:42,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:42,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481391094] [2025-03-09 02:11:42,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:42,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:42,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-09 02:11:42,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-09 02:11:42,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:42,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:42,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40063520] [2025-03-09 02:11:42,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:42,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:42,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:42,950 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:42,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-03-09 02:11:42,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-09 02:11:43,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-09 02:11:43,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:43,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:43,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-09 02:11:43,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:43,283 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-09 02:11:43,283 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:11:55,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:11:55,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481391094] [2025-03-09 02:11:55,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:11:55,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40063520] [2025-03-09 02:11:55,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40063520] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:11:55,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:11:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2025-03-09 02:11:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111215085] [2025-03-09 02:11:55,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:11:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:11:55,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:11:55,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:11:55,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=94, Unknown=3, NotChecked=0, Total=132 [2025-03-09 02:11:55,928 INFO L87 Difference]: Start difference. First operand 998 states and 1586 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-09 02:11:56,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:11:56,365 INFO L93 Difference]: Finished difference Result 1043 states and 1618 transitions. [2025-03-09 02:11:56,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:11:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 128 [2025-03-09 02:11:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:11:56,368 INFO L225 Difference]: With dead ends: 1043 [2025-03-09 02:11:56,368 INFO L226 Difference]: Without dead ends: 1040 [2025-03-09 02:11:56,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=45, Invalid=108, Unknown=3, NotChecked=0, Total=156 [2025-03-09 02:11:56,369 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 234 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-09 02:11:56,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 484 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-09 02:11:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2025-03-09 02:11:56,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 998. [2025-03-09 02:11:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6538461538461537) internal successors, (1419), 916 states have internal predecessors, (1419), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:11:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1577 transitions. [2025-03-09 02:11:56,408 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1577 transitions. Word has length 128 [2025-03-09 02:11:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:11:56,408 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1577 transitions. [2025-03-09 02:11:56,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-09 02:11:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1577 transitions. [2025-03-09 02:11:56,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-03-09 02:11:56,408 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:11:56,408 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:11:56,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2025-03-09 02:11:56,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:56,609 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:11:56,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:11:56,609 INFO L85 PathProgramCache]: Analyzing trace with hash 725559948, now seen corresponding path program 1 times [2025-03-09 02:11:56,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:11:56,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757308548] [2025-03-09 02:11:56,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:56,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:11:56,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-09 02:11:56,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-09 02:11:56,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:56,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:11:56,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1408225017] [2025-03-09 02:11:56,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:11:56,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:11:56,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:11:56,623 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:11:56,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2025-03-09 02:11:56,655 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-03-09 02:11:56,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-03-09 02:11:56,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:11:56,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:11:56,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 02:11:56,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:11:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 6 proven. 34 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-09 02:11:57,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:12:01,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:12:01,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757308548] [2025-03-09 02:12:01,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:12:01,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408225017] [2025-03-09 02:12:01,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408225017] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:12:01,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:12:01,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:12:01,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669050348] [2025-03-09 02:12:01,284 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:12:01,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:12:01,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:12:01,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:12:01,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2025-03-09 02:12:01,284 INFO L87 Difference]: Start difference. First operand 998 states and 1577 transitions. Second operand has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-09 02:12:02,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:12:02,130 INFO L93 Difference]: Finished difference Result 1030 states and 1607 transitions. [2025-03-09 02:12:02,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:12:02,132 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 129 [2025-03-09 02:12:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:12:02,135 INFO L225 Difference]: With dead ends: 1030 [2025-03-09 02:12:02,135 INFO L226 Difference]: Without dead ends: 1028 [2025-03-09 02:12:02,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2025-03-09 02:12:02,135 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 443 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 1646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:12:02,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 421 Invalid, 1646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 02:12:02,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2025-03-09 02:12:02,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2025-03-09 02:12:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6491841491841492) internal successors, (1415), 916 states have internal predecessors, (1415), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:12:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1573 transitions. [2025-03-09 02:12:02,166 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1573 transitions. Word has length 129 [2025-03-09 02:12:02,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:12:02,167 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1573 transitions. [2025-03-09 02:12:02,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.090909090909091) internal successors, (78), 11 states have internal predecessors, (78), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-09 02:12:02,167 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1573 transitions. [2025-03-09 02:12:02,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-09 02:12:02,167 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:12:02,167 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:12:02,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2025-03-09 02:12:02,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2025-03-09 02:12:02,368 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:12:02,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:12:02,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1017521980, now seen corresponding path program 1 times [2025-03-09 02:12:02,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:12:02,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076950316] [2025-03-09 02:12:02,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:02,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:12:02,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 02:12:02,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 02:12:02,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:02,377 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:12:02,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469919720] [2025-03-09 02:12:02,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:02,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:02,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:12:02,380 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:12:02,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2025-03-09 02:12:02,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-09 02:12:02,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-09 02:12:02,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:02,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:12:02,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-09 02:12:02,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:12:02,884 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 35 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-09 02:12:02,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:12:07,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:12:07,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076950316] [2025-03-09 02:12:07,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:12:07,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469919720] [2025-03-09 02:12:07,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469919720] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:12:07,323 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:12:07,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-03-09 02:12:07,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062290206] [2025-03-09 02:12:07,323 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:12:07,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-09 02:12:07,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:12:07,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-09 02:12:07,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=281, Unknown=1, NotChecked=0, Total=342 [2025-03-09 02:12:07,324 INFO L87 Difference]: Start difference. First operand 998 states and 1573 transitions. Second operand has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-09 02:12:08,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:12:08,196 INFO L93 Difference]: Finished difference Result 1030 states and 1603 transitions. [2025-03-09 02:12:08,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-09 02:12:08,198 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 130 [2025-03-09 02:12:08,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:12:08,200 INFO L225 Difference]: With dead ends: 1030 [2025-03-09 02:12:08,200 INFO L226 Difference]: Without dead ends: 1028 [2025-03-09 02:12:08,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=117, Invalid=532, Unknown=1, NotChecked=0, Total=650 [2025-03-09 02:12:08,201 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 418 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 1705 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:12:08,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 425 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1705 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 02:12:08,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2025-03-09 02:12:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 998. [2025-03-09 02:12:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6445221445221445) internal successors, (1411), 916 states have internal predecessors, (1411), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:12:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1569 transitions. [2025-03-09 02:12:08,237 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1569 transitions. Word has length 130 [2025-03-09 02:12:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:12:08,238 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1569 transitions. [2025-03-09 02:12:08,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-09 02:12:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1569 transitions. [2025-03-09 02:12:08,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-09 02:12:08,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:12:08,238 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:12:08,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2025-03-09 02:12:08,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2025-03-09 02:12:08,439 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:12:08,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:12:08,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1478410378, now seen corresponding path program 1 times [2025-03-09 02:12:08,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:12:08,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569175844] [2025-03-09 02:12:08,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:08,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:12:08,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 02:12:08,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 02:12:08,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:08,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:12:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883296071] [2025-03-09 02:12:08,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:08,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:08,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:12:08,453 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:12:08,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2025-03-09 02:12:08,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-09 02:12:08,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-09 02:12:08,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:08,500 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:12:08,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-09 02:12:08,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:12:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-09 02:12:09,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:12:09,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:12:09,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569175844] [2025-03-09 02:12:09,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:12:09,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883296071] [2025-03-09 02:12:09,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883296071] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:12:09,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:12:09,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:12:09,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179716904] [2025-03-09 02:12:09,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:12:09,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:12:09,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:12:09,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:12:09,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:12:09,075 INFO L87 Difference]: Start difference. First operand 998 states and 1569 transitions. Second operand has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-09 02:12:09,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:12:09,937 INFO L93 Difference]: Finished difference Result 1017 states and 1585 transitions. [2025-03-09 02:12:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:12:09,937 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 131 [2025-03-09 02:12:09,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:12:09,940 INFO L225 Difference]: With dead ends: 1017 [2025-03-09 02:12:09,940 INFO L226 Difference]: Without dead ends: 1016 [2025-03-09 02:12:09,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2025-03-09 02:12:09,940 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 442 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-09 02:12:09,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 400 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-09 02:12:09,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states. [2025-03-09 02:12:09,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 998. [2025-03-09 02:12:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6421911421911422) internal successors, (1409), 916 states have internal predecessors, (1409), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:12:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1567 transitions. [2025-03-09 02:12:09,974 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1567 transitions. Word has length 131 [2025-03-09 02:12:09,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:12:09,975 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1567 transitions. [2025-03-09 02:12:09,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-09 02:12:09,975 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1567 transitions. [2025-03-09 02:12:09,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-09 02:12:09,975 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:12:09,975 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:12:09,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2025-03-09 02:12:10,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-03-09 02:12:10,176 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:12:10,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:12:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1413918470, now seen corresponding path program 1 times [2025-03-09 02:12:10,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:12:10,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055890895] [2025-03-09 02:12:10,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:10,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:12:10,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-09 02:12:10,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-09 02:12:10,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:10,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:12:10,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955712756] [2025-03-09 02:12:10,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:10,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:10,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:12:10,192 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:12:10,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2025-03-09 02:12:10,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-09 02:12:10,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-09 02:12:10,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:10,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:12:10,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-09 02:12:10,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:12:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-09 02:12:10,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:12:15,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:12:15,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055890895] [2025-03-09 02:12:15,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:12:15,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955712756] [2025-03-09 02:12:15,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955712756] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:12:15,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:12:15,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-03-09 02:12:15,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201550008] [2025-03-09 02:12:15,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:12:15,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:12:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:12:15,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:12:15,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=196, Unknown=1, NotChecked=0, Total=240 [2025-03-09 02:12:15,266 INFO L87 Difference]: Start difference. First operand 998 states and 1567 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-09 02:12:16,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:12:16,101 INFO L93 Difference]: Finished difference Result 1017 states and 1583 transitions. [2025-03-09 02:12:16,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-09 02:12:16,102 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 132 [2025-03-09 02:12:16,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:12:16,104 INFO L225 Difference]: With dead ends: 1017 [2025-03-09 02:12:16,104 INFO L226 Difference]: Without dead ends: 1014 [2025-03-09 02:12:16,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=58, Invalid=247, Unknown=1, NotChecked=0, Total=306 [2025-03-09 02:12:16,105 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 270 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 02:12:16,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 349 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 02:12:16,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2025-03-09 02:12:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2025-03-09 02:12:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.6351981351981353) internal successors, (1403), 916 states have internal predecessors, (1403), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:12:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1561 transitions. [2025-03-09 02:12:16,140 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1561 transitions. Word has length 132 [2025-03-09 02:12:16,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:12:16,141 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1561 transitions. [2025-03-09 02:12:16,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2025-03-09 02:12:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1561 transitions. [2025-03-09 02:12:16,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-03-09 02:12:16,141 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:12:16,141 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:16,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2025-03-09 02:12:16,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:16,342 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:12:16,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:12:16,342 INFO L85 PathProgramCache]: Analyzing trace with hash -737833659, now seen corresponding path program 1 times [2025-03-09 02:12:16,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:12:16,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036504691] [2025-03-09 02:12:16,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:16,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:12:16,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-03-09 02:12:16,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-03-09 02:12:16,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:16,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:12:16,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982463206] [2025-03-09 02:12:16,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:16,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:16,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:12:16,355 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:12:16,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2025-03-09 02:12:16,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-03-09 02:12:16,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-03-09 02:12:16,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:16,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:12:16,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-09 02:12:16,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:12:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2025-03-09 02:12:17,244 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:12:21,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:12:21,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036504691] [2025-03-09 02:12:21,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:12:21,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982463206] [2025-03-09 02:12:21,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982463206] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:12:21,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:12:21,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-03-09 02:12:21,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218898805] [2025-03-09 02:12:21,455 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:12:21,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 02:12:21,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:12:21,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 02:12:21,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=218, Unknown=1, NotChecked=0, Total=272 [2025-03-09 02:12:21,456 INFO L87 Difference]: Start difference. First operand 998 states and 1561 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2025-03-09 02:12:22,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:12:22,919 INFO L93 Difference]: Finished difference Result 1015 states and 1577 transitions. [2025-03-09 02:12:22,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:12:22,919 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 138 [2025-03-09 02:12:22,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:12:22,922 INFO L225 Difference]: With dead ends: 1015 [2025-03-09 02:12:22,922 INFO L226 Difference]: Without dead ends: 1014 [2025-03-09 02:12:22,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=104, Invalid=401, Unknown=1, NotChecked=0, Total=506 [2025-03-09 02:12:22,922 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 478 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-03-09 02:12:22,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 622 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-03-09 02:12:22,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2025-03-09 02:12:22,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 998. [2025-03-09 02:12:22,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 858 states have (on average 1.632867132867133) internal successors, (1401), 916 states have internal predecessors, (1401), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2025-03-09 02:12:22,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1559 transitions. [2025-03-09 02:12:22,955 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1559 transitions. Word has length 138 [2025-03-09 02:12:22,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:12:22,955 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1559 transitions. [2025-03-09 02:12:22,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2025-03-09 02:12:22,955 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1559 transitions. [2025-03-09 02:12:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-09 02:12:22,956 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:12:22,956 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:12:22,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2025-03-09 02:12:23,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:23,157 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2025-03-09 02:12:23,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:12:23,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1398006886, now seen corresponding path program 1 times [2025-03-09 02:12:23,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:12:23,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263912108] [2025-03-09 02:12:23,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:23,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:12:23,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-09 02:12:23,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-09 02:12:23,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:23,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:12:23,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115308799] [2025-03-09 02:12:23,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:12:23,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:12:23,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:12:23,170 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:12:23,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2025-03-09 02:12:23,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-09 02:12:23,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-09 02:12:23,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:12:23,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:12:23,228 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-09 02:12:23,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:12:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 18 proven. 46 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-09 02:12:24,269 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 02:12:24,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:12:24,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263912108] [2025-03-09 02:12:24,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:12:24,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115308799] [2025-03-09 02:12:24,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115308799] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 02:12:24,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-03-09 02:12:24,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2025-03-09 02:12:24,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523259076] [2025-03-09 02:12:24,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-03-09 02:12:24,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-09 02:12:24,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:12:24,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-09 02:12:24,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2025-03-09 02:12:24,418 INFO L87 Difference]: Start difference. First operand 998 states and 1559 transitions. Second operand has 16 states, 15 states have (on average 5.733333333333333) internal successors, (86), 15 states have internal predecessors, (86), 6 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13)