./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/termination-numeric/Parts.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 14:48:45,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 14:48:45,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 14:48:45,641 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 14:48:45,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 14:48:45,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 14:48:45,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 14:48:45,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 14:48:45,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 14:48:45,670 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 14:48:45,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 14:48:45,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 14:48:45,672 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 14:48:45,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 14:48:45,672 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 14:48:45,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 14:48:45,672 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 14:48:45,673 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 14:48:45,674 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 14:48:45,674 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 14:48:45,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 14:48:45,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 14:48:45,674 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:48:45,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 14:48:45,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 14:48:45,674 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 14:48:45,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 14:48:45,675 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2025-03-17 14:48:45,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 14:48:45,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 14:48:45,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 14:48:45,915 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 14:48:45,916 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 14:48:45,916 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Parts.c [2025-03-17 14:48:47,076 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150cb10bf/c5f45ff125ee4be6831e9bfebc920dd3/FLAG2d4e111c9 [2025-03-17 14:48:47,323 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 14:48:47,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Parts.c [2025-03-17 14:48:47,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150cb10bf/c5f45ff125ee4be6831e9bfebc920dd3/FLAG2d4e111c9 [2025-03-17 14:48:47,661 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/150cb10bf/c5f45ff125ee4be6831e9bfebc920dd3 [2025-03-17 14:48:47,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 14:48:47,664 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 14:48:47,665 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 14:48:47,665 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 14:48:47,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 14:48:47,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25a682fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47, skipping insertion in model container [2025-03-17 14:48:47,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,682 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 14:48:47,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:48:47,776 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 14:48:47,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 14:48:47,795 INFO L204 MainTranslator]: Completed translation [2025-03-17 14:48:47,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47 WrapperNode [2025-03-17 14:48:47,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 14:48:47,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 14:48:47,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 14:48:47,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 14:48:47,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,804 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,813 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2025-03-17 14:48:47,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 14:48:47,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 14:48:47,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 14:48:47,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 14:48:47,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,824 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,827 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-17 14:48:47,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,829 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 14:48:47,835 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 14:48:47,835 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 14:48:47,835 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 14:48:47,835 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (1/1) ... [2025-03-17 14:48:47,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 14:48:47,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:47,865 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) [2025-03-17 14:48:47,871 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 [2025-03-17 14:48:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2025-03-17 14:48:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2025-03-17 14:48:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 14:48:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 14:48:47,925 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 14:48:47,926 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 14:48:48,055 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-03-17 14:48:48,055 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 14:48:48,064 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 14:48:48,064 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 14:48:48,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:48 BoogieIcfgContainer [2025-03-17 14:48:48,065 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 14:48:48,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 14:48:48,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 14:48:48,070 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 14:48:48,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 02:48:47" (1/3) ... [2025-03-17 14:48:48,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef2119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:48:48, skipping insertion in model container [2025-03-17 14:48:48,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 02:48:47" (2/3) ... [2025-03-17 14:48:48,071 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef2119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 02:48:48, skipping insertion in model container [2025-03-17 14:48:48,071 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 02:48:48" (3/3) ... [2025-03-17 14:48:48,072 INFO L128 eAbstractionObserver]: Analyzing ICFG Parts.c [2025-03-17 14:48:48,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 14:48:48,084 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Parts.c that has 2 procedures, 42 locations, 1 initial locations, 2 loop locations, and 10 error locations. [2025-03-17 14:48:48,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 14:48:48,137 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;@4b570e27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 14:48:48,137 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2025-03-17 14:48:48,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 36 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 14:48:48,145 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,145 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,146 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1899820806, now seen corresponding path program 1 times [2025-03-17 14:48:48,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257852155] [2025-03-17 14:48:48,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 14:48:48,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 14:48:48,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:48,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257852155] [2025-03-17 14:48:48,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257852155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:48:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383034437] [2025-03-17 14:48:48,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:48,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:48,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,283 INFO L87 Difference]: Start difference. First operand has 42 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 36 states have internal predecessors, (43), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:48,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,354 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2025-03-17 14:48:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:48,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-03-17 14:48:48,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,360 INFO L225 Difference]: With dead ends: 83 [2025-03-17 14:48:48,360 INFO L226 Difference]: Without dead ends: 40 [2025-03-17 14:48:48,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:48,364 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 15 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 118 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2025-03-17 14:48:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2025-03-17 14:48:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 25 states have (on average 1.56) internal successors, (39), 34 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2025-03-17 14:48:48,393 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 6 [2025-03-17 14:48:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,393 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2025-03-17 14:48:48,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:48,394 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2025-03-17 14:48:48,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 14:48:48,396 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,396 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 14:48:48,396 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash 669897030, now seen corresponding path program 1 times [2025-03-17 14:48:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792555101] [2025-03-17 14:48:48,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 14:48:48,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 14:48:48,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792555101] [2025-03-17 14:48:48,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792555101] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:48:48,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895980438] [2025-03-17 14:48:48,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:48:48,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:48:48,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:48:48,449 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:48,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,470 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2025-03-17 14:48:48,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:48:48,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-03-17 14:48:48,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,472 INFO L225 Difference]: With dead ends: 42 [2025-03-17 14:48:48,472 INFO L226 Difference]: Without dead ends: 41 [2025-03-17 14:48:48,472 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 [2025-03-17 14:48:48,473 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 68 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2025-03-17 14:48:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2025-03-17 14:48:48,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.52) internal successors, (38), 33 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:48,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2025-03-17 14:48:48,483 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 11 [2025-03-17 14:48:48,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,483 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2025-03-17 14:48:48,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2025-03-17 14:48:48,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 14:48:48,484 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,484 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 14:48:48,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,485 INFO L85 PathProgramCache]: Analyzing trace with hash -729142087, now seen corresponding path program 1 times [2025-03-17 14:48:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666979428] [2025-03-17 14:48:48,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:48:48,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:48:48,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:48,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666979428] [2025-03-17 14:48:48,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666979428] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:48,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777262499] [2025-03-17 14:48:48,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:48,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:48,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,530 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,550 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2025-03-17 14:48:48,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:48,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-03-17 14:48:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,552 INFO L225 Difference]: With dead ends: 39 [2025-03-17 14:48:48,552 INFO L226 Difference]: Without dead ends: 38 [2025-03-17 14:48:48,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,553 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 110 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-03-17 14:48:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-03-17 14:48:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:48,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2025-03-17 14:48:48,559 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 12 [2025-03-17 14:48:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,560 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2025-03-17 14:48:48,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,560 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2025-03-17 14:48:48,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 14:48:48,561 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,561 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 14:48:48,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,562 INFO L85 PathProgramCache]: Analyzing trace with hash -708028564, now seen corresponding path program 1 times [2025-03-17 14:48:48,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315447472] [2025-03-17 14:48:48,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 14:48:48,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 14:48:48,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:48,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315447472] [2025-03-17 14:48:48,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315447472] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:48,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64095349] [2025-03-17 14:48:48,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:48:48,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:48:48,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:48,620 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:48,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,683 INFO L93 Difference]: Finished difference Result 82 states and 99 transitions. [2025-03-17 14:48:48,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:48,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-17 14:48:48,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,686 INFO L225 Difference]: With dead ends: 82 [2025-03-17 14:48:48,686 INFO L226 Difference]: Without dead ends: 47 [2025-03-17 14:48:48,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:48,688 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 140 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-17 14:48:48,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2025-03-17 14:48:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 37 states have internal predecessors, (42), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 14:48:48,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2025-03-17 14:48:48,693 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 12 [2025-03-17 14:48:48,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,693 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2025-03-17 14:48:48,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 14:48:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2025-03-17 14:48:48,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 14:48:48,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,694 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 14:48:48,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1128568214, now seen corresponding path program 1 times [2025-03-17 14:48:48,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089766623] [2025-03-17 14:48:48,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 14:48:48,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 14:48:48,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 14:48:48,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089766623] [2025-03-17 14:48:48,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089766623] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:48,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3842520] [2025-03-17 14:48:48,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:48,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:48,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,739 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,763 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2025-03-17 14:48:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:48,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2025-03-17 14:48:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,764 INFO L225 Difference]: With dead ends: 48 [2025-03-17 14:48:48,764 INFO L226 Difference]: Without dead ends: 47 [2025-03-17 14:48:48,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,764 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2025-03-17 14:48:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2025-03-17 14:48:48,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.40625) internal successors, (45), 39 states have internal predecessors, (45), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 14:48:48,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2025-03-17 14:48:48,769 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 13 [2025-03-17 14:48:48,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,769 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2025-03-17 14:48:48,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,769 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2025-03-17 14:48:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-17 14:48:48,770 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,770 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 14:48:48,770 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2072672296, now seen corresponding path program 1 times [2025-03-17 14:48:48,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219374219] [2025-03-17 14:48:48,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 14:48:48,781 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 14:48:48,781 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,781 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 14:48:48,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219374219] [2025-03-17 14:48:48,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219374219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:48,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932013284] [2025-03-17 14:48:48,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:48,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:48,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,824 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,840 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2025-03-17 14:48:48,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:48,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-03-17 14:48:48,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,841 INFO L225 Difference]: With dead ends: 47 [2025-03-17 14:48:48,841 INFO L226 Difference]: Without dead ends: 46 [2025-03-17 14:48:48,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,842 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 105 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-03-17 14:48:48,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-03-17 14:48:48,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 32 states have (on average 1.375) internal successors, (44), 38 states have internal predecessors, (44), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 14:48:48,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2025-03-17 14:48:48,846 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 15 [2025-03-17 14:48:48,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,847 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2025-03-17 14:48:48,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2025-03-17 14:48:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-17 14:48:48,847 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,847 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 14:48:48,847 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash -171668266, now seen corresponding path program 1 times [2025-03-17 14:48:48,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676438090] [2025-03-17 14:48:48,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 14:48:48,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 14:48:48,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 14:48:48,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676438090] [2025-03-17 14:48:48,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676438090] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 14:48:48,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618988901] [2025-03-17 14:48:48,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 14:48:48,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 14:48:48,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,887 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:48,903 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2025-03-17 14:48:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 14:48:48,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2025-03-17 14:48:48,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:48,904 INFO L225 Difference]: With dead ends: 61 [2025-03-17 14:48:48,904 INFO L226 Difference]: Without dead ends: 60 [2025-03-17 14:48:48,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 14:48:48,905 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:48,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 113 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2025-03-17 14:48:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59. [2025-03-17 14:48:48,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.3255813953488371) internal successors, (57), 49 states have internal predecessors, (57), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 14:48:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2025-03-17 14:48:48,910 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 16 [2025-03-17 14:48:48,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:48,910 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2025-03-17 14:48:48,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:48,910 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2025-03-17 14:48:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 14:48:48,911 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:48,911 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:48,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 14:48:48,911 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:48,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:48,911 INFO L85 PathProgramCache]: Analyzing trace with hash 644033562, now seen corresponding path program 1 times [2025-03-17 14:48:48,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:48,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243795065] [2025-03-17 14:48:48,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:48,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 14:48:48,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 14:48:48,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:48,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:48,976 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 14:48:48,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:48,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243795065] [2025-03-17 14:48:48,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243795065] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:48,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:48,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:48,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568003854] [2025-03-17 14:48:48,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:48,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:48:48,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:48,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:48:48,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:48,978 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:49,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:49,012 INFO L93 Difference]: Finished difference Result 121 states and 145 transitions. [2025-03-17 14:48:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2025-03-17 14:48:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:49,013 INFO L225 Difference]: With dead ends: 121 [2025-03-17 14:48:49,013 INFO L226 Difference]: Without dead ends: 68 [2025-03-17 14:48:49,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:49,014 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:49,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 141 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:49,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2025-03-17 14:48:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2025-03-17 14:48:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 55 states have internal predecessors, (63), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 14:48:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2025-03-17 14:48:49,021 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 21 [2025-03-17 14:48:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:49,021 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2025-03-17 14:48:49,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 14:48:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2025-03-17 14:48:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-17 14:48:49,021 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:49,021 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:49,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 14:48:49,021 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:49,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2130652028, now seen corresponding path program 1 times [2025-03-17 14:48:49,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:49,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132732154] [2025-03-17 14:48:49,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:49,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:48:49,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:48:49,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:49,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:49,079 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:48:49,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:49,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132732154] [2025-03-17 14:48:49,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132732154] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:49,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308527821] [2025-03-17 14:48:49,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:49,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:49,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:49,081 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) [2025-03-17 14:48:49,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 14:48:49,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 14:48:49,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 14:48:49,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:49,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:49,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:48:49,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:48:49,158 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 14:48:49,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308527821] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:49,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:49,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 14:48:49,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69527875] [2025-03-17 14:48:49,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:49,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:48:49,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:49,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:48:49,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:48:49,224 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:49,274 INFO L93 Difference]: Finished difference Result 98 states and 125 transitions. [2025-03-17 14:48:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 14:48:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 22 [2025-03-17 14:48:49,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:49,275 INFO L225 Difference]: With dead ends: 98 [2025-03-17 14:48:49,275 INFO L226 Difference]: Without dead ends: 97 [2025-03-17 14:48:49,276 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:48:49,276 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:49,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:49,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2025-03-17 14:48:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2025-03-17 14:48:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 73 states have (on average 1.273972602739726) internal successors, (93), 79 states have internal predecessors, (93), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 14:48:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 119 transitions. [2025-03-17 14:48:49,291 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 119 transitions. Word has length 22 [2025-03-17 14:48:49,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:49,291 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 119 transitions. [2025-03-17 14:48:49,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 119 transitions. [2025-03-17 14:48:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 14:48:49,296 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:49,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 14:48:49,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:49,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:49,497 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:49,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash 884735758, now seen corresponding path program 1 times [2025-03-17 14:48:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:49,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661562557] [2025-03-17 14:48:49,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:49,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:49,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 14:48:49,507 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 14:48:49,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:49,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:49,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 14:48:49,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:49,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661562557] [2025-03-17 14:48:49,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661562557] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:49,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189022290] [2025-03-17 14:48:49,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:49,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:49,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:49,584 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) [2025-03-17 14:48:49,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 14:48:49,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 14:48:49,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 14:48:49,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:49,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:49,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:49,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:49,738 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 14:48:49,738 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 14:48:49,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189022290] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:49,805 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:49,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2025-03-17 14:48:49,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645220037] [2025-03-17 14:48:49,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:49,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:48:49,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:49,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:48:49,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:48:49,806 INFO L87 Difference]: Start difference. First operand 97 states and 119 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 14:48:49,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:49,878 INFO L93 Difference]: Finished difference Result 159 states and 194 transitions. [2025-03-17 14:48:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:48:49,879 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 3 states have call successors, (4), 2 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 29 [2025-03-17 14:48:49,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:49,880 INFO L225 Difference]: With dead ends: 159 [2025-03-17 14:48:49,880 INFO L226 Difference]: Without dead ends: 98 [2025-03-17 14:48:49,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 6 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:48:49,880 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 9 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:49,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 261 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:49,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-03-17 14:48:49,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2025-03-17 14:48:49,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 79 states have internal predecessors, (92), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-03-17 14:48:49,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 118 transitions. [2025-03-17 14:48:49,890 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 118 transitions. Word has length 29 [2025-03-17 14:48:49,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:49,892 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 118 transitions. [2025-03-17 14:48:49,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 14:48:49,892 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 118 transitions. [2025-03-17 14:48:49,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-17 14:48:49,892 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:49,892 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 14:48:49,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:50,093 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,SelfDestructingSolverStorable9 [2025-03-17 14:48:50,093 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:50,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash -850437088, now seen corresponding path program 2 times [2025-03-17 14:48:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545465078] [2025-03-17 14:48:50,093 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:50,101 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 2 equivalence classes. [2025-03-17 14:48:50,105 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 14:48:50,106 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:50,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-17 14:48:50,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:50,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545465078] [2025-03-17 14:48:50,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545465078] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:50,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:50,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:50,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993309051] [2025-03-17 14:48:50,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:50,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:50,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:50,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:50,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:50,182 INFO L87 Difference]: Start difference. First operand 97 states and 118 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 14:48:50,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:50,271 INFO L93 Difference]: Finished difference Result 195 states and 256 transitions. [2025-03-17 14:48:50,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:50,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2025-03-17 14:48:50,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:50,272 INFO L225 Difference]: With dead ends: 195 [2025-03-17 14:48:50,273 INFO L226 Difference]: Without dead ends: 137 [2025-03-17 14:48:50,274 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:50,274 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 35 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:50,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 110 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:50,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2025-03-17 14:48:50,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 132. [2025-03-17 14:48:50,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 101 states have (on average 1.2574257425742574) internal successors, (127), 106 states have internal predecessors, (127), 17 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (32), 20 states have call predecessors, (32), 17 states have call successors, (32) [2025-03-17 14:48:50,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 176 transitions. [2025-03-17 14:48:50,285 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 176 transitions. Word has length 38 [2025-03-17 14:48:50,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:50,285 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 176 transitions. [2025-03-17 14:48:50,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 14:48:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 176 transitions. [2025-03-17 14:48:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-17 14:48:50,286 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:50,286 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:50,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 14:48:50,286 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:50,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:50,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2033677896, now seen corresponding path program 1 times [2025-03-17 14:48:50,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:50,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723884129] [2025-03-17 14:48:50,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:50,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:50,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 14:48:50,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 14:48:50,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:50,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 14:48:50,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:50,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723884129] [2025-03-17 14:48:50,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723884129] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:50,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16761081] [2025-03-17 14:48:50,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:50,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:50,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:50,368 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) [2025-03-17 14:48:50,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 14:48:50,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 14:48:50,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 14:48:50,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:50,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:50,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:48:50,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:50,474 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-17 14:48:50,474 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-17 14:48:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16761081] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:50,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:50,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 17 [2025-03-17 14:48:50,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622451294] [2025-03-17 14:48:50,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:50,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:48:50,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:50,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:48:50,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2025-03-17 14:48:50,599 INFO L87 Difference]: Start difference. First operand 132 states and 176 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 14:48:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:51,132 INFO L93 Difference]: Finished difference Result 392 states and 556 transitions. [2025-03-17 14:48:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2025-03-17 14:48:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 39 [2025-03-17 14:48:51,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:51,135 INFO L225 Difference]: With dead ends: 392 [2025-03-17 14:48:51,135 INFO L226 Difference]: Without dead ends: 297 [2025-03-17 14:48:51,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=409, Invalid=2243, Unknown=0, NotChecked=0, Total=2652 [2025-03-17 14:48:51,138 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 35 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:51,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 383 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2025-03-17 14:48:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 262. [2025-03-17 14:48:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 208 states have (on average 1.2115384615384615) internal successors, (252), 211 states have internal predecessors, (252), 40 states have call successors, (40), 5 states have call predecessors, (40), 7 states have return successors, (82), 45 states have call predecessors, (82), 40 states have call successors, (82) [2025-03-17 14:48:51,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 374 transitions. [2025-03-17 14:48:51,172 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 374 transitions. Word has length 39 [2025-03-17 14:48:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:51,173 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 374 transitions. [2025-03-17 14:48:51,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 14:48:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 374 transitions. [2025-03-17 14:48:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-03-17 14:48:51,176 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:51,176 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:51,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:51,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:51,378 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:51,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:51,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1440897512, now seen corresponding path program 1 times [2025-03-17 14:48:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:51,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183824911] [2025-03-17 14:48:51,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:51,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 14:48:51,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 14:48:51,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:51,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:51,487 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 14:48:51,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:51,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183824911] [2025-03-17 14:48:51,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183824911] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:51,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69262966] [2025-03-17 14:48:51,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:51,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:51,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:51,490 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) [2025-03-17 14:48:51,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 14:48:51,513 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 14:48:51,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 14:48:51,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:51,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:51,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 14:48:51,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:51,571 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 14:48:51,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-17 14:48:51,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69262966] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:51,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:51,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-03-17 14:48:51,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974009565] [2025-03-17 14:48:51,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:51,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-17 14:48:51,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:51,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-17 14:48:51,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:48:51,668 INFO L87 Difference]: Start difference. First operand 262 states and 374 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:51,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:51,891 INFO L93 Difference]: Finished difference Result 311 states and 472 transitions. [2025-03-17 14:48:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 14:48:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2025-03-17 14:48:51,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:51,895 INFO L225 Difference]: With dead ends: 311 [2025-03-17 14:48:51,896 INFO L226 Difference]: Without dead ends: 309 [2025-03-17 14:48:51,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2025-03-17 14:48:51,896 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 104 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:51,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 182 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:51,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2025-03-17 14:48:51,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 296. [2025-03-17 14:48:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 235 states have (on average 1.221276595744681) internal successors, (287), 237 states have internal predecessors, (287), 43 states have call successors, (43), 8 states have call predecessors, (43), 12 states have return successors, (91), 50 states have call predecessors, (91), 43 states have call successors, (91) [2025-03-17 14:48:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 421 transitions. [2025-03-17 14:48:51,929 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 421 transitions. Word has length 44 [2025-03-17 14:48:51,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:51,930 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 421 transitions. [2025-03-17 14:48:51,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 13 states have internal predecessors, (51), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 14:48:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 421 transitions. [2025-03-17 14:48:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-03-17 14:48:51,931 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:51,932 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1] [2025-03-17 14:48:51,942 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 14:48:52,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:52,132 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:52,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:52,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1440547562, now seen corresponding path program 2 times [2025-03-17 14:48:52,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:52,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500965784] [2025-03-17 14:48:52,133 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:52,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:52,137 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-03-17 14:48:52,146 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 14:48:52,146 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:52,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:52,260 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 14:48:52,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:52,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500965784] [2025-03-17 14:48:52,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500965784] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:52,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436766831] [2025-03-17 14:48:52,261 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:52,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:52,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:52,263 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) [2025-03-17 14:48:52,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 14:48:52,300 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 49 statements into 2 equivalence classes. [2025-03-17 14:48:52,312 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 14:48:52,312 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:52,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:52,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 14:48:52,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 14:48:52,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-17 14:48:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436766831] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:52,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:52,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2025-03-17 14:48:52,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321460997] [2025-03-17 14:48:52,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:52,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 14:48:52,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:52,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 14:48:52,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:48:52,487 INFO L87 Difference]: Start difference. First operand 296 states and 421 transitions. Second operand has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 14:48:52,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:52,591 INFO L93 Difference]: Finished difference Result 537 states and 853 transitions. [2025-03-17 14:48:52,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 14:48:52,592 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 49 [2025-03-17 14:48:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:52,595 INFO L225 Difference]: With dead ends: 537 [2025-03-17 14:48:52,595 INFO L226 Difference]: Without dead ends: 536 [2025-03-17 14:48:52,596 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:48:52,596 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:52,596 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:52,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2025-03-17 14:48:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2025-03-17 14:48:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 427 states have (on average 1.234192037470726) internal successors, (527), 429 states have internal predecessors, (527), 91 states have call successors, (91), 8 states have call predecessors, (91), 12 states have return successors, (187), 98 states have call predecessors, (187), 91 states have call successors, (187) [2025-03-17 14:48:52,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 805 transitions. [2025-03-17 14:48:52,640 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 805 transitions. Word has length 49 [2025-03-17 14:48:52,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:52,640 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 805 transitions. [2025-03-17 14:48:52,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.2857142857142856) internal successors, (48), 22 states have internal predecessors, (48), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2025-03-17 14:48:52,640 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 805 transitions. [2025-03-17 14:48:52,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-03-17 14:48:52,642 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:52,642 INFO L218 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:52,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:52,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-03-17 14:48:52,843 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:52,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:52,843 INFO L85 PathProgramCache]: Analyzing trace with hash 23326772, now seen corresponding path program 1 times [2025-03-17 14:48:52,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:52,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899609986] [2025-03-17 14:48:52,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:52,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:52,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-17 14:48:52,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-17 14:48:52,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:52,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:52,927 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 14 proven. 21 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-03-17 14:48:52,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:52,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899609986] [2025-03-17 14:48:52,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899609986] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:52,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743892078] [2025-03-17 14:48:52,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:52,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:52,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:52,930 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) [2025-03-17 14:48:52,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 14:48:52,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-03-17 14:48:52,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-03-17 14:48:52,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:52,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:52,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 14:48:52,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 14:48:53,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-17 14:48:53,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743892078] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:53,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:53,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 14 [2025-03-17 14:48:53,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493012698] [2025-03-17 14:48:53,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:53,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 14:48:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:53,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 14:48:53,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:48:53,114 INFO L87 Difference]: Start difference. First operand 536 states and 805 transitions. Second operand has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 12 states have internal predecessors, (64), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-17 14:48:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:53,532 INFO L93 Difference]: Finished difference Result 1083 states and 1749 transitions. [2025-03-17 14:48:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-03-17 14:48:53,533 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 12 states have internal predecessors, (64), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 57 [2025-03-17 14:48:53,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:53,537 INFO L225 Difference]: With dead ends: 1083 [2025-03-17 14:48:53,537 INFO L226 Difference]: Without dead ends: 636 [2025-03-17 14:48:53,541 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 109 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2025-03-17 14:48:53,542 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 196 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:53,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 199 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2025-03-17 14:48:53,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 606. [2025-03-17 14:48:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 483 states have (on average 1.2401656314699794) internal successors, (599), 485 states have internal predecessors, (599), 97 states have call successors, (97), 14 states have call predecessors, (97), 20 states have return successors, (197), 106 states have call predecessors, (197), 97 states have call successors, (197) [2025-03-17 14:48:53,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 893 transitions. [2025-03-17 14:48:53,608 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 893 transitions. Word has length 57 [2025-03-17 14:48:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:53,608 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 893 transitions. [2025-03-17 14:48:53,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.571428571428571) internal successors, (64), 12 states have internal predecessors, (64), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2025-03-17 14:48:53,608 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 893 transitions. [2025-03-17 14:48:53,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-03-17 14:48:53,609 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:53,609 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:53,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 14:48:53,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-17 14:48:53,813 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:53,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1175761044, now seen corresponding path program 1 times [2025-03-17 14:48:53,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:53,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111635050] [2025-03-17 14:48:53,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:53,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:53,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 14:48:53,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 14:48:53,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:53,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-03-17 14:48:53,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:53,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111635050] [2025-03-17 14:48:53,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111635050] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:53,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:53,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013414521] [2025-03-17 14:48:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:53,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:48:53,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:53,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:48:53,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:48:53,869 INFO L87 Difference]: Start difference. First operand 606 states and 893 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 14:48:53,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:53,919 INFO L93 Difference]: Finished difference Result 1097 states and 1699 transitions. [2025-03-17 14:48:53,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:53,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2025-03-17 14:48:53,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:53,923 INFO L225 Difference]: With dead ends: 1097 [2025-03-17 14:48:53,923 INFO L226 Difference]: Without dead ends: 586 [2025-03-17 14:48:53,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:53,926 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 30 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:53,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:53,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2025-03-17 14:48:53,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2025-03-17 14:48:53,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 466 states have (on average 1.2317596566523605) internal successors, (574), 471 states have internal predecessors, (574), 97 states have call successors, (97), 14 states have call predecessors, (97), 17 states have return successors, (146), 100 states have call predecessors, (146), 97 states have call successors, (146) [2025-03-17 14:48:53,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 817 transitions. [2025-03-17 14:48:53,953 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 817 transitions. Word has length 59 [2025-03-17 14:48:53,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:53,953 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 817 transitions. [2025-03-17 14:48:53,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 14:48:53,954 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 817 transitions. [2025-03-17 14:48:53,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-03-17 14:48:53,954 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:53,954 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:53,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 14:48:53,955 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:53,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:53,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1453425382, now seen corresponding path program 2 times [2025-03-17 14:48:53,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674820048] [2025-03-17 14:48:53,955 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:53,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:53,958 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-17 14:48:53,962 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 14:48:53,962 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:53,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:53,992 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-03-17 14:48:53,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:53,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674820048] [2025-03-17 14:48:53,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674820048] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:53,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071502173] [2025-03-17 14:48:53,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:53,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:53,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:53,994 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) [2025-03-17 14:48:53,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 14:48:54,017 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 60 statements into 2 equivalence classes. [2025-03-17 14:48:54,032 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 60 of 60 statements. [2025-03-17 14:48:54,032 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:54,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:54,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 14:48:54,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:54,072 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2025-03-17 14:48:54,072 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:54,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071502173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:54,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:54,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-03-17 14:48:54,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136184660] [2025-03-17 14:48:54,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:54,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:48:54,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:54,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:48:54,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:48:54,073 INFO L87 Difference]: Start difference. First operand 586 states and 817 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 14:48:54,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:54,134 INFO L93 Difference]: Finished difference Result 617 states and 904 transitions. [2025-03-17 14:48:54,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:48:54,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2025-03-17 14:48:54,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:54,138 INFO L225 Difference]: With dead ends: 617 [2025-03-17 14:48:54,138 INFO L226 Difference]: Without dead ends: 616 [2025-03-17 14:48:54,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:48:54,139 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:54,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 134 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:54,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2025-03-17 14:48:54,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 604. [2025-03-17 14:48:54,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 480 states have (on average 1.225) internal successors, (588), 484 states have internal predecessors, (588), 97 states have call successors, (97), 14 states have call predecessors, (97), 21 states have return successors, (189), 105 states have call predecessors, (189), 97 states have call successors, (189) [2025-03-17 14:48:54,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 874 transitions. [2025-03-17 14:48:54,180 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 874 transitions. Word has length 60 [2025-03-17 14:48:54,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:54,180 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 874 transitions. [2025-03-17 14:48:54,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 14:48:54,180 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 874 transitions. [2025-03-17 14:48:54,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-03-17 14:48:54,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:54,181 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:54,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 14:48:54,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:54,382 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:54,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2106513908, now seen corresponding path program 1 times [2025-03-17 14:48:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:54,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036027831] [2025-03-17 14:48:54,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:54,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:54,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-03-17 14:48:54,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-03-17 14:48:54,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:54,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-17 14:48:54,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:54,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036027831] [2025-03-17 14:48:54,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036027831] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:54,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:54,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 14:48:54,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653066574] [2025-03-17 14:48:54,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:54,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:48:54,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:54,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:48:54,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:48:54,426 INFO L87 Difference]: Start difference. First operand 604 states and 874 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 14:48:54,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:54,483 INFO L93 Difference]: Finished difference Result 669 states and 1024 transitions. [2025-03-17 14:48:54,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:48:54,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 61 [2025-03-17 14:48:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:54,487 INFO L225 Difference]: With dead ends: 669 [2025-03-17 14:48:54,488 INFO L226 Difference]: Without dead ends: 668 [2025-03-17 14:48:54,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:54,489 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:54,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 152 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:54,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2025-03-17 14:48:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 645. [2025-03-17 14:48:54,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 513 states have (on average 1.2163742690058479) internal successors, (624), 515 states have internal predecessors, (624), 102 states have call successors, (102), 14 states have call predecessors, (102), 24 states have return successors, (241), 115 states have call predecessors, (241), 102 states have call successors, (241) [2025-03-17 14:48:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 967 transitions. [2025-03-17 14:48:54,544 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 967 transitions. Word has length 61 [2025-03-17 14:48:54,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:54,544 INFO L471 AbstractCegarLoop]: Abstraction has 645 states and 967 transitions. [2025-03-17 14:48:54,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 14:48:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 967 transitions. [2025-03-17 14:48:54,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-03-17 14:48:54,545 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:54,546 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:54,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 14:48:54,546 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:54,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1803285234, now seen corresponding path program 1 times [2025-03-17 14:48:54,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:54,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551705527] [2025-03-17 14:48:54,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:54,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:54,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 14:48:54,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 14:48:54,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:54,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:54,671 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 42 proven. 23 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-17 14:48:54,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:54,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551705527] [2025-03-17 14:48:54,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551705527] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:54,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655725839] [2025-03-17 14:48:54,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:54,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:54,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:54,684 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) [2025-03-17 14:48:54,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 14:48:54,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-03-17 14:48:54,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-03-17 14:48:54,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:54,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:54,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:48:54,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:54,785 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 42 proven. 23 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-17 14:48:54,785 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 42 proven. 23 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-03-17 14:48:54,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655725839] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:54,902 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:54,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 10 [2025-03-17 14:48:54,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484001521] [2025-03-17 14:48:54,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:54,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:48:54,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:54,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:48:54,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:48:54,903 INFO L87 Difference]: Start difference. First operand 645 states and 967 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 14:48:55,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:55,089 INFO L93 Difference]: Finished difference Result 1226 states and 1898 transitions. [2025-03-17 14:48:55,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:48:55,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 80 [2025-03-17 14:48:55,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:55,093 INFO L225 Difference]: With dead ends: 1226 [2025-03-17 14:48:55,094 INFO L226 Difference]: Without dead ends: 679 [2025-03-17 14:48:55,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 155 SyntacticMatches, 6 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:48:55,097 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 59 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:55,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 136 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2025-03-17 14:48:55,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 670. [2025-03-17 14:48:55,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 532 states have (on average 1.2086466165413534) internal successors, (643), 537 states have internal predecessors, (643), 105 states have call successors, (105), 16 states have call predecessors, (105), 27 states have return successors, (238), 116 states have call predecessors, (238), 105 states have call successors, (238) [2025-03-17 14:48:55,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 986 transitions. [2025-03-17 14:48:55,146 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 986 transitions. Word has length 80 [2025-03-17 14:48:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:55,147 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 986 transitions. [2025-03-17 14:48:55,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 9 states have internal predecessors, (49), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 14:48:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 986 transitions. [2025-03-17 14:48:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-17 14:48:55,148 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:55,148 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:55,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:55,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:55,349 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting partsErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:55,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:55,349 INFO L85 PathProgramCache]: Analyzing trace with hash -2114201136, now seen corresponding path program 1 times [2025-03-17 14:48:55,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:55,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735316692] [2025-03-17 14:48:55,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:55,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:55,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-17 14:48:55,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-17 14:48:55,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:55,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2025-03-17 14:48:55,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:55,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735316692] [2025-03-17 14:48:55,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735316692] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:55,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:48:55,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 14:48:55,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562772883] [2025-03-17 14:48:55,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:55,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 14:48:55,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:55,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 14:48:55,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 14:48:55,381 INFO L87 Difference]: Start difference. First operand 670 states and 986 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 14:48:55,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:55,416 INFO L93 Difference]: Finished difference Result 676 states and 1031 transitions. [2025-03-17 14:48:55,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 14:48:55,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2025-03-17 14:48:55,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:55,420 INFO L225 Difference]: With dead ends: 676 [2025-03-17 14:48:55,420 INFO L226 Difference]: Without dead ends: 675 [2025-03-17 14:48:55,421 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 [2025-03-17 14:48:55,422 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:55,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 64 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:48:55,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2025-03-17 14:48:55,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 669. [2025-03-17 14:48:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 532 states have (on average 1.2030075187969924) internal successors, (640), 536 states have internal predecessors, (640), 105 states have call successors, (105), 16 states have call predecessors, (105), 27 states have return successors, (238), 116 states have call predecessors, (238), 105 states have call successors, (238) [2025-03-17 14:48:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 983 transitions. [2025-03-17 14:48:55,460 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 983 transitions. Word has length 73 [2025-03-17 14:48:55,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:55,460 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 983 transitions. [2025-03-17 14:48:55,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 14:48:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 983 transitions. [2025-03-17 14:48:55,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 14:48:55,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:55,464 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 7, 7, 7, 6, 6, 6, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:55,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 14:48:55,464 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:55,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:55,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1437691300, now seen corresponding path program 2 times [2025-03-17 14:48:55,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:55,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951293105] [2025-03-17 14:48:55,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:55,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:55,469 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-17 14:48:55,476 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 14:48:55,476 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:55,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2025-03-17 14:48:55,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:55,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951293105] [2025-03-17 14:48:55,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951293105] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:55,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448625212] [2025-03-17 14:48:55,535 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:55,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:55,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:55,537 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) [2025-03-17 14:48:55,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 14:48:55,565 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 110 statements into 2 equivalence classes. [2025-03-17 14:48:55,586 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 110 of 110 statements. [2025-03-17 14:48:55,587 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:55,587 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:55,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:48:55,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2025-03-17 14:48:55,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:55,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448625212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:55,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:55,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 10 [2025-03-17 14:48:55,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052873087] [2025-03-17 14:48:55,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:55,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:55,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:55,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:55,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:48:55,627 INFO L87 Difference]: Start difference. First operand 669 states and 983 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 14:48:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:55,743 INFO L93 Difference]: Finished difference Result 1312 states and 2084 transitions. [2025-03-17 14:48:55,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:48:55,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 110 [2025-03-17 14:48:55,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:55,748 INFO L225 Difference]: With dead ends: 1312 [2025-03-17 14:48:55,748 INFO L226 Difference]: Without dead ends: 747 [2025-03-17 14:48:55,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-03-17 14:48:55,751 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 27 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:55,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 101 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:55,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2025-03-17 14:48:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 722. [2025-03-17 14:48:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 575 states have (on average 1.1982608695652175) internal successors, (689), 575 states have internal predecessors, (689), 111 states have call successors, (111), 16 states have call predecessors, (111), 31 states have return successors, (245), 130 states have call predecessors, (245), 111 states have call successors, (245) [2025-03-17 14:48:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1045 transitions. [2025-03-17 14:48:55,788 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1045 transitions. Word has length 110 [2025-03-17 14:48:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:55,788 INFO L471 AbstractCegarLoop]: Abstraction has 722 states and 1045 transitions. [2025-03-17 14:48:55,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2025-03-17 14:48:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1045 transitions. [2025-03-17 14:48:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-17 14:48:55,790 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:55,790 INFO L218 NwaCegarLoop]: trace histogram [11, 10, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:55,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:55,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:55,991 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:55,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1105177548, now seen corresponding path program 3 times [2025-03-17 14:48:55,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:55,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351213810] [2025-03-17 14:48:55,992 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:48:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:55,996 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 110 statements into 5 equivalence classes. [2025-03-17 14:48:56,005 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 102 of 110 statements. [2025-03-17 14:48:56,005 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 14:48:56,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 38 proven. 84 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2025-03-17 14:48:56,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:56,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351213810] [2025-03-17 14:48:56,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351213810] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:56,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533068864] [2025-03-17 14:48:56,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:48:56,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:56,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:56,176 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) [2025-03-17 14:48:56,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 14:48:56,201 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 110 statements into 5 equivalence classes. [2025-03-17 14:48:56,221 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) and asserted 102 of 110 statements. [2025-03-17 14:48:56,221 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2025-03-17 14:48:56,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:56,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 14:48:56,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:56,361 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 158 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-03-17 14:48:56,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:56,490 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 36 proven. 46 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2025-03-17 14:48:56,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533068864] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:56,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:56,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 22 [2025-03-17 14:48:56,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669830089] [2025-03-17 14:48:56,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:56,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 14:48:56,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:56,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 14:48:56,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:48:56,492 INFO L87 Difference]: Start difference. First operand 722 states and 1045 transitions. Second operand has 22 states, 22 states have (on average 4.0) internal successors, (88), 20 states have internal predecessors, (88), 11 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 10 states have call predecessors, (15), 9 states have call successors, (15) [2025-03-17 14:48:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:56,863 INFO L93 Difference]: Finished difference Result 1257 states and 1911 transitions. [2025-03-17 14:48:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 14:48:56,864 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.0) internal successors, (88), 20 states have internal predecessors, (88), 11 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 10 states have call predecessors, (15), 9 states have call successors, (15) Word has length 110 [2025-03-17 14:48:56,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:56,867 INFO L225 Difference]: With dead ends: 1257 [2025-03-17 14:48:56,868 INFO L226 Difference]: Without dead ends: 673 [2025-03-17 14:48:56,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 203 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=835, Unknown=0, NotChecked=0, Total=992 [2025-03-17 14:48:56,873 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 38 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:56,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 291 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:48:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673 states. [2025-03-17 14:48:56,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673 to 669. [2025-03-17 14:48:56,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 533 states have (on average 1.198874296435272) internal successors, (639), 536 states have internal predecessors, (639), 102 states have call successors, (102), 21 states have call predecessors, (102), 29 states have return successors, (193), 111 states have call predecessors, (193), 102 states have call successors, (193) [2025-03-17 14:48:56,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 934 transitions. [2025-03-17 14:48:56,908 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 934 transitions. Word has length 110 [2025-03-17 14:48:56,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:56,908 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 934 transitions. [2025-03-17 14:48:56,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.0) internal successors, (88), 20 states have internal predecessors, (88), 11 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 10 states have call predecessors, (15), 9 states have call successors, (15) [2025-03-17 14:48:56,908 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 934 transitions. [2025-03-17 14:48:56,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-17 14:48:56,910 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:56,910 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1] [2025-03-17 14:48:56,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:57,113 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,SelfDestructingSolverStorable21 [2025-03-17 14:48:57,113 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:57,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:57,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1462423638, now seen corresponding path program 3 times [2025-03-17 14:48:57,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:57,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271724206] [2025-03-17 14:48:57,113 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:48:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:57,117 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 103 statements into 11 equivalence classes. [2025-03-17 14:48:57,127 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 14:48:57,127 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:48:57,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 14:48:57,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:57,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271724206] [2025-03-17 14:48:57,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271724206] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:57,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452357097] [2025-03-17 14:48:57,454 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:48:57,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:57,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:57,456 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) [2025-03-17 14:48:57,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 14:48:57,482 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 103 statements into 11 equivalence classes. [2025-03-17 14:48:57,507 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 103 of 103 statements. [2025-03-17 14:48:57,508 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-17 14:48:57,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:57,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 14:48:57,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 14:48:57,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:57,972 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2025-03-17 14:48:57,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452357097] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:57,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:57,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2025-03-17 14:48:57,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775164517] [2025-03-17 14:48:57,973 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:57,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-17 14:48:57,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:57,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-17 14:48:57,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-17 14:48:57,975 INFO L87 Difference]: Start difference. First operand 669 states and 934 transitions. Second operand has 46 states, 45 states have (on average 2.1333333333333333) internal successors, (96), 46 states have internal predecessors, (96), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 14:48:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:58,167 INFO L93 Difference]: Finished difference Result 1150 states and 1786 transitions. [2025-03-17 14:48:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-17 14:48:58,168 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.1333333333333333) internal successors, (96), 46 states have internal predecessors, (96), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 103 [2025-03-17 14:48:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:58,173 INFO L225 Difference]: With dead ends: 1150 [2025-03-17 14:48:58,174 INFO L226 Difference]: Without dead ends: 1149 [2025-03-17 14:48:58,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-17 14:48:58,175 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:58,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 273 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:58,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2025-03-17 14:48:58,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1149. [2025-03-17 14:48:58,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 917 states have (on average 1.2202835332606325) internal successors, (1119), 920 states have internal predecessors, (1119), 198 states have call successors, (198), 21 states have call predecessors, (198), 29 states have return successors, (373), 207 states have call predecessors, (373), 198 states have call successors, (373) [2025-03-17 14:48:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1690 transitions. [2025-03-17 14:48:58,248 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1690 transitions. Word has length 103 [2025-03-17 14:48:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:58,248 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1690 transitions. [2025-03-17 14:48:58,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.1333333333333333) internal successors, (96), 46 states have internal predecessors, (96), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-03-17 14:48:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1690 transitions. [2025-03-17 14:48:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-17 14:48:58,250 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:58,250 INFO L218 NwaCegarLoop]: trace histogram [10, 9, 7, 7, 6, 6, 6, 6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:58,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 14:48:58,454 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,SelfDestructingSolverStorable22 [2025-03-17 14:48:58,454 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:58,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:58,454 INFO L85 PathProgramCache]: Analyzing trace with hash 554060378, now seen corresponding path program 1 times [2025-03-17 14:48:58,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:58,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418186512] [2025-03-17 14:48:58,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:58,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 14:48:58,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 14:48:58,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:58,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:58,516 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 98 proven. 20 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-03-17 14:48:58,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:58,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418186512] [2025-03-17 14:48:58,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418186512] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:58,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774836132] [2025-03-17 14:48:58,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:58,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:58,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:58,518 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) [2025-03-17 14:48:58,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 14:48:58,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-17 14:48:58,570 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-17 14:48:58,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:58,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:58,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 14:48:58,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 150 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2025-03-17 14:48:58,595 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 14:48:58,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774836132] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:48:58,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 14:48:58,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-03-17 14:48:58,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772697615] [2025-03-17 14:48:58,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:48:58,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 14:48:58,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:58,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 14:48:58,597 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:58,597 INFO L87 Difference]: Start difference. First operand 1149 states and 1690 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 14:48:58,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:58,701 INFO L93 Difference]: Finished difference Result 1587 states and 2405 transitions. [2025-03-17 14:48:58,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 14:48:58,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 104 [2025-03-17 14:48:58,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:58,706 INFO L225 Difference]: With dead ends: 1587 [2025-03-17 14:48:58,707 INFO L226 Difference]: Without dead ends: 793 [2025-03-17 14:48:58,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-17 14:48:58,710 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 23 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:58,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 143 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:58,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2025-03-17 14:48:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 790. [2025-03-17 14:48:58,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 630 states have (on average 1.2063492063492063) internal successors, (760), 634 states have internal predecessors, (760), 132 states have call successors, (132), 17 states have call predecessors, (132), 23 states have return successors, (215), 138 states have call predecessors, (215), 132 states have call successors, (215) [2025-03-17 14:48:58,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1107 transitions. [2025-03-17 14:48:58,744 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1107 transitions. Word has length 104 [2025-03-17 14:48:58,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:58,744 INFO L471 AbstractCegarLoop]: Abstraction has 790 states and 1107 transitions. [2025-03-17 14:48:58,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 14:48:58,745 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1107 transitions. [2025-03-17 14:48:58,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-17 14:48:58,746 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:58,746 INFO L218 NwaCegarLoop]: trace histogram [14, 11, 8, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:58,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 14:48:58,951 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,SelfDestructingSolverStorable23 [2025-03-17 14:48:58,951 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:58,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:58,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1561532037, now seen corresponding path program 1 times [2025-03-17 14:48:58,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:58,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729303266] [2025-03-17 14:48:58,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:58,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:58,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 14:48:58,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 14:48:58,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:58,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 80 proven. 83 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2025-03-17 14:48:59,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:59,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729303266] [2025-03-17 14:48:59,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729303266] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:59,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004646712] [2025-03-17 14:48:59,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:48:59,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:59,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:59,096 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) [2025-03-17 14:48:59,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 14:48:59,124 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-17 14:48:59,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-17 14:48:59,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:48:59,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:59,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:48:59,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:59,254 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 213 proven. 32 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2025-03-17 14:48:59,255 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:48:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 80 proven. 83 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2025-03-17 14:48:59,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004646712] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:48:59,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:48:59,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 18 [2025-03-17 14:48:59,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824041191] [2025-03-17 14:48:59,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:48:59,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 14:48:59,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:48:59,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 14:48:59,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2025-03-17 14:48:59,371 INFO L87 Difference]: Start difference. First operand 790 states and 1107 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 8 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-03-17 14:48:59,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:48:59,500 INFO L93 Difference]: Finished difference Result 1447 states and 2046 transitions. [2025-03-17 14:48:59,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 14:48:59,500 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 8 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 130 [2025-03-17 14:48:59,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:48:59,504 INFO L225 Difference]: With dead ends: 1447 [2025-03-17 14:48:59,504 INFO L226 Difference]: Without dead ends: 849 [2025-03-17 14:48:59,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 244 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2025-03-17 14:48:59,508 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 2 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:48:59,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 355 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:48:59,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2025-03-17 14:48:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 848. [2025-03-17 14:48:59,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 680 states have (on average 1.1926470588235294) internal successors, (811), 684 states have internal predecessors, (811), 140 states have call successors, (140), 17 states have call predecessors, (140), 23 states have return successors, (223), 146 states have call predecessors, (223), 140 states have call successors, (223) [2025-03-17 14:48:59,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1174 transitions. [2025-03-17 14:48:59,548 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1174 transitions. Word has length 130 [2025-03-17 14:48:59,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:48:59,548 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1174 transitions. [2025-03-17 14:48:59,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 18 states have internal predecessors, (67), 8 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-03-17 14:48:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1174 transitions. [2025-03-17 14:48:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 14:48:59,550 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:48:59,550 INFO L218 NwaCegarLoop]: trace histogram [15, 12, 8, 7, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:48:59,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 14:48:59,755 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,SelfDestructingSolverStorable24 [2025-03-17 14:48:59,755 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:48:59,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:48:59,755 INFO L85 PathProgramCache]: Analyzing trace with hash 374107315, now seen corresponding path program 2 times [2025-03-17 14:48:59,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:48:59,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885968268] [2025-03-17 14:48:59,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:59,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:48:59,759 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 139 statements into 2 equivalence classes. [2025-03-17 14:48:59,764 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 14:48:59,764 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:59,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2025-03-17 14:48:59,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:48:59,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885968268] [2025-03-17 14:48:59,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885968268] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:48:59,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311111201] [2025-03-17 14:48:59,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:48:59,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:48:59,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:48:59,809 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) [2025-03-17 14:48:59,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 14:48:59,834 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 139 statements into 2 equivalence classes. [2025-03-17 14:48:59,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 14:48:59,859 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:48:59,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:48:59,860 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 14:48:59,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:48:59,957 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 268 proven. 51 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2025-03-17 14:48:59,957 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 86 proven. 98 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2025-03-17 14:49:00,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311111201] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:00,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 11, 11] total 14 [2025-03-17 14:49:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716915831] [2025-03-17 14:49:00,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:00,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 14:49:00,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:00,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 14:49:00,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:49:00,087 INFO L87 Difference]: Start difference. First operand 848 states and 1174 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 11 states have internal predecessors, (80), 7 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-17 14:49:00,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:00,498 INFO L93 Difference]: Finished difference Result 1549 states and 2178 transitions. [2025-03-17 14:49:00,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-03-17 14:49:00,498 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 11 states have internal predecessors, (80), 7 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 139 [2025-03-17 14:49:00,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:00,503 INFO L225 Difference]: With dead ends: 1549 [2025-03-17 14:49:00,503 INFO L226 Difference]: Without dead ends: 883 [2025-03-17 14:49:00,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 261 SyntacticMatches, 8 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=187, Invalid=869, Unknown=0, NotChecked=0, Total=1056 [2025-03-17 14:49:00,507 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 106 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:00,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 268 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:00,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2025-03-17 14:49:00,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 833. [2025-03-17 14:49:00,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 668 states have (on average 1.187125748502994) internal successors, (793), 673 states have internal predecessors, (793), 139 states have call successors, (139), 18 states have call predecessors, (139), 21 states have return successors, (213), 141 states have call predecessors, (213), 139 states have call successors, (213) [2025-03-17 14:49:00,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1145 transitions. [2025-03-17 14:49:00,542 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1145 transitions. Word has length 139 [2025-03-17 14:49:00,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:00,542 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1145 transitions. [2025-03-17 14:49:00,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 11 states have internal predecessors, (80), 7 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2025-03-17 14:49:00,543 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1145 transitions. [2025-03-17 14:49:00,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-03-17 14:49:00,544 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:00,544 INFO L218 NwaCegarLoop]: trace histogram [15, 14, 9, 9, 9, 8, 8, 8, 8, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:00,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:00,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:00,745 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:00,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash 845254353, now seen corresponding path program 1 times [2025-03-17 14:49:00,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:00,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359823251] [2025-03-17 14:49:00,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:00,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 14:49:00,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 14:49:00,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:00,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 189 proven. 35 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2025-03-17 14:49:00,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:00,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359823251] [2025-03-17 14:49:00,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359823251] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:00,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357409142] [2025-03-17 14:49:00,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:00,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:00,803 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) [2025-03-17 14:49:00,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 14:49:00,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-03-17 14:49:00,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-03-17 14:49:00,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:00,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:00,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 14:49:00,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 368 proven. 1 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2025-03-17 14:49:00,884 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:00,965 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 189 proven. 35 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2025-03-17 14:49:00,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357409142] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:00,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:00,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2025-03-17 14:49:00,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128727211] [2025-03-17 14:49:00,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:00,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 14:49:00,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:00,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 14:49:00,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:49:00,966 INFO L87 Difference]: Start difference. First operand 833 states and 1145 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-17 14:49:01,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:01,039 INFO L93 Difference]: Finished difference Result 1453 states and 2185 transitions. [2025-03-17 14:49:01,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 14:49:01,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 153 [2025-03-17 14:49:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:01,044 INFO L225 Difference]: With dead ends: 1453 [2025-03-17 14:49:01,044 INFO L226 Difference]: Without dead ends: 839 [2025-03-17 14:49:01,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 303 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-03-17 14:49:01,049 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 31 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:01,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 86 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:49:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2025-03-17 14:49:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 833. [2025-03-17 14:49:01,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 668 states have (on average 1.18562874251497) internal successors, (792), 673 states have internal predecessors, (792), 139 states have call successors, (139), 18 states have call predecessors, (139), 21 states have return successors, (212), 141 states have call predecessors, (212), 139 states have call successors, (212) [2025-03-17 14:49:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1143 transitions. [2025-03-17 14:49:01,083 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1143 transitions. Word has length 153 [2025-03-17 14:49:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:01,083 INFO L471 AbstractCegarLoop]: Abstraction has 833 states and 1143 transitions. [2025-03-17 14:49:01,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-03-17 14:49:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1143 transitions. [2025-03-17 14:49:01,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-03-17 14:49:01,085 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:01,085 INFO L218 NwaCegarLoop]: trace histogram [17, 16, 10, 9, 9, 8, 8, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:01,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 14:49:01,289 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,SelfDestructingSolverStorable26 [2025-03-17 14:49:01,289 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:01,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:01,289 INFO L85 PathProgramCache]: Analyzing trace with hash -440030651, now seen corresponding path program 2 times [2025-03-17 14:49:01,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:01,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413968876] [2025-03-17 14:49:01,289 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:01,295 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 173 statements into 2 equivalence classes. [2025-03-17 14:49:01,310 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 173 of 173 statements. [2025-03-17 14:49:01,310 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:01,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:01,467 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 63 proven. 150 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2025-03-17 14:49:01,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:01,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413968876] [2025-03-17 14:49:01,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413968876] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:01,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813153048] [2025-03-17 14:49:01,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:01,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:01,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:01,470 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) [2025-03-17 14:49:01,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 14:49:01,502 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 173 statements into 2 equivalence classes. [2025-03-17 14:49:01,540 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 173 of 173 statements. [2025-03-17 14:49:01,540 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:01,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:01,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-17 14:49:01,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 367 proven. 10 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2025-03-17 14:49:01,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 261 proven. 64 refuted. 0 times theorem prover too weak. 470 trivial. 0 not checked. [2025-03-17 14:49:02,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813153048] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:02,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:02,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 31 [2025-03-17 14:49:02,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464837372] [2025-03-17 14:49:02,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:02,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-03-17 14:49:02,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:02,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-03-17 14:49:02,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2025-03-17 14:49:02,131 INFO L87 Difference]: Start difference. First operand 833 states and 1143 transitions. Second operand has 31 states, 31 states have (on average 4.0) internal successors, (124), 30 states have internal predecessors, (124), 17 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 13 states have call predecessors, (20), 17 states have call successors, (20) [2025-03-17 14:49:03,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:03,377 INFO L93 Difference]: Finished difference Result 2318 states and 3928 transitions. [2025-03-17 14:49:03,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2025-03-17 14:49:03,377 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.0) internal successors, (124), 30 states have internal predecessors, (124), 17 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 13 states have call predecessors, (20), 17 states have call successors, (20) Word has length 173 [2025-03-17 14:49:03,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:03,389 INFO L225 Difference]: With dead ends: 2318 [2025-03-17 14:49:03,389 INFO L226 Difference]: Without dead ends: 1852 [2025-03-17 14:49:03,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 326 SyntacticMatches, 7 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2010 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=803, Invalid=6337, Unknown=0, NotChecked=0, Total=7140 [2025-03-17 14:49:03,395 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 197 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:03,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 304 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 14:49:03,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2025-03-17 14:49:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1408. [2025-03-17 14:49:03,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1133 states have (on average 1.1853486319505737) internal successors, (1343), 1133 states have internal predecessors, (1343), 232 states have call successors, (232), 29 states have call predecessors, (232), 38 states have return successors, (538), 245 states have call predecessors, (538), 232 states have call successors, (538) [2025-03-17 14:49:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 2113 transitions. [2025-03-17 14:49:03,497 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 2113 transitions. Word has length 173 [2025-03-17 14:49:03,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:03,497 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 2113 transitions. [2025-03-17 14:49:03,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.0) internal successors, (124), 30 states have internal predecessors, (124), 17 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 13 states have call predecessors, (20), 17 states have call successors, (20) [2025-03-17 14:49:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 2113 transitions. [2025-03-17 14:49:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2025-03-17 14:49:03,500 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:03,500 INFO L218 NwaCegarLoop]: trace histogram [23, 20, 16, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:03,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:03,705 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,SelfDestructingSolverStorable27 [2025-03-17 14:49:03,705 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:03,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash -773917912, now seen corresponding path program 3 times [2025-03-17 14:49:03,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:03,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359535211] [2025-03-17 14:49:03,706 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:03,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:03,713 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 227 statements into 9 equivalence classes. [2025-03-17 14:49:03,719 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 75 of 227 statements. [2025-03-17 14:49:03,720 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-17 14:49:03,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2025-03-17 14:49:03,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359535211] [2025-03-17 14:49:03,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359535211] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:03,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613564761] [2025-03-17 14:49:03,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:03,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:03,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:03,762 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) [2025-03-17 14:49:03,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 14:49:03,795 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 227 statements into 9 equivalence classes. [2025-03-17 14:49:03,811 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 75 of 227 statements. [2025-03-17 14:49:03,811 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-03-17 14:49:03,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:03,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:49:03,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:03,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2025-03-17 14:49:03,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:03,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 102 proven. 3 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2025-03-17 14:49:03,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613564761] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:03,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:03,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-03-17 14:49:03,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498717757] [2025-03-17 14:49:03,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:03,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 14:49:03,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:03,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 14:49:03,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-17 14:49:03,951 INFO L87 Difference]: Start difference. First operand 1408 states and 2113 transitions. Second operand has 10 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 14:49:04,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:04,070 INFO L93 Difference]: Finished difference Result 1508 states and 2406 transitions. [2025-03-17 14:49:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:49:04,070 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 227 [2025-03-17 14:49:04,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:04,081 INFO L225 Difference]: With dead ends: 1508 [2025-03-17 14:49:04,081 INFO L226 Difference]: Without dead ends: 1498 [2025-03-17 14:49:04,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:49:04,084 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:04,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 179 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:04,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2025-03-17 14:49:04,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1475. [2025-03-17 14:49:04,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 1187 states have (on average 1.1836562763268745) internal successors, (1405), 1185 states have internal predecessors, (1405), 241 states have call successors, (241), 32 states have call predecessors, (241), 42 states have return successors, (437), 257 states have call predecessors, (437), 241 states have call successors, (437) [2025-03-17 14:49:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 2083 transitions. [2025-03-17 14:49:04,169 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 2083 transitions. Word has length 227 [2025-03-17 14:49:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:04,169 INFO L471 AbstractCegarLoop]: Abstraction has 1475 states and 2083 transitions. [2025-03-17 14:49:04,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 5 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-03-17 14:49:04,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 2083 transitions. [2025-03-17 14:49:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2025-03-17 14:49:04,172 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:04,172 INFO L218 NwaCegarLoop]: trace histogram [25, 23, 16, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:04,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:04,377 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,SelfDestructingSolverStorable28 [2025-03-17 14:49:04,377 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:04,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:04,378 INFO L85 PathProgramCache]: Analyzing trace with hash -306350325, now seen corresponding path program 1 times [2025-03-17 14:49:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:04,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098888852] [2025-03-17 14:49:04,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:04,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 246 statements into 1 equivalence classes. [2025-03-17 14:49:04,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 246 of 246 statements. [2025-03-17 14:49:04,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:04,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:04,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 295 proven. 145 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2025-03-17 14:49:04,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098888852] [2025-03-17 14:49:04,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098888852] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:04,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109313663] [2025-03-17 14:49:04,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:04,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:04,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:04,676 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) [2025-03-17 14:49:04,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 14:49:04,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 246 statements into 1 equivalence classes. [2025-03-17 14:49:04,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 246 of 246 statements. [2025-03-17 14:49:04,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:04,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:04,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 14:49:04,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:05,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 795 proven. 15 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2025-03-17 14:49:05,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1636 backedges. 295 proven. 145 refuted. 0 times theorem prover too weak. 1196 trivial. 0 not checked. [2025-03-17 14:49:05,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109313663] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:05,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:05,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 28 [2025-03-17 14:49:05,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320423404] [2025-03-17 14:49:05,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:05,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-17 14:49:05,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:05,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-17 14:49:05,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2025-03-17 14:49:05,291 INFO L87 Difference]: Start difference. First operand 1475 states and 2083 transitions. Second operand has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 24 states have internal predecessors, (109), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2025-03-17 14:49:05,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:05,890 INFO L93 Difference]: Finished difference Result 2777 states and 4473 transitions. [2025-03-17 14:49:05,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-17 14:49:05,891 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 24 states have internal predecessors, (109), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) Word has length 246 [2025-03-17 14:49:05,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:05,899 INFO L225 Difference]: With dead ends: 2777 [2025-03-17 14:49:05,899 INFO L226 Difference]: Without dead ends: 1784 [2025-03-17 14:49:05,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 473 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=228, Invalid=1494, Unknown=0, NotChecked=0, Total=1722 [2025-03-17 14:49:05,908 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 198 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:05,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 385 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 14:49:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2025-03-17 14:49:06,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1723. [2025-03-17 14:49:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1389 states have (on average 1.169906407487401) internal successors, (1625), 1376 states have internal predecessors, (1625), 275 states have call successors, (275), 40 states have call predecessors, (275), 54 states have return successors, (346), 306 states have call predecessors, (346), 275 states have call successors, (346) [2025-03-17 14:49:06,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2246 transitions. [2025-03-17 14:49:06,020 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2246 transitions. Word has length 246 [2025-03-17 14:49:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:06,021 INFO L471 AbstractCegarLoop]: Abstraction has 1723 states and 2246 transitions. [2025-03-17 14:49:06,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.892857142857143) internal successors, (109), 24 states have internal predecessors, (109), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2025-03-17 14:49:06,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2246 transitions. [2025-03-17 14:49:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2025-03-17 14:49:06,024 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:06,024 INFO L218 NwaCegarLoop]: trace histogram [26, 23, 18, 10, 10, 10, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:06,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:06,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:06,229 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:06,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:06,230 INFO L85 PathProgramCache]: Analyzing trace with hash -244794001, now seen corresponding path program 2 times [2025-03-17 14:49:06,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:06,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573232743] [2025-03-17 14:49:06,230 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:06,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:06,239 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 253 statements into 2 equivalence classes. [2025-03-17 14:49:06,251 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 253 of 253 statements. [2025-03-17 14:49:06,251 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:06,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1750 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 1676 trivial. 0 not checked. [2025-03-17 14:49:06,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:06,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573232743] [2025-03-17 14:49:06,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573232743] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 14:49:06,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 14:49:06,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 14:49:06,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738967460] [2025-03-17 14:49:06,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 14:49:06,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 14:49:06,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:06,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 14:49:06,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 14:49:06,308 INFO L87 Difference]: Start difference. First operand 1723 states and 2246 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 14:49:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:06,385 INFO L93 Difference]: Finished difference Result 1752 states and 2288 transitions. [2025-03-17 14:49:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 14:49:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 253 [2025-03-17 14:49:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:06,392 INFO L225 Difference]: With dead ends: 1752 [2025-03-17 14:49:06,392 INFO L226 Difference]: Without dead ends: 1751 [2025-03-17 14:49:06,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 14:49:06,393 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:06,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 141 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:49:06,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2025-03-17 14:49:06,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1647. [2025-03-17 14:49:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1330 states have (on average 1.175187969924812) internal successors, (1563), 1321 states have internal predecessors, (1563), 261 states have call successors, (261), 40 states have call predecessors, (261), 51 states have return successors, (301), 285 states have call predecessors, (301), 261 states have call successors, (301) [2025-03-17 14:49:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2125 transitions. [2025-03-17 14:49:06,460 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2125 transitions. Word has length 253 [2025-03-17 14:49:06,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:06,460 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2125 transitions. [2025-03-17 14:49:06,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-17 14:49:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2125 transitions. [2025-03-17 14:49:06,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2025-03-17 14:49:06,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:06,464 INFO L218 NwaCegarLoop]: trace histogram [33, 31, 23, 13, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:06,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-17 14:49:06,465 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:06,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:06,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1041588240, now seen corresponding path program 1 times [2025-03-17 14:49:06,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:06,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021386739] [2025-03-17 14:49:06,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:06,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:06,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-03-17 14:49:06,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-03-17 14:49:06,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:06,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 214 proven. 282 refuted. 0 times theorem prover too weak. 2479 trivial. 0 not checked. [2025-03-17 14:49:06,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:06,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021386739] [2025-03-17 14:49:06,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021386739] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:06,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724035088] [2025-03-17 14:49:06,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:06,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:06,764 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) [2025-03-17 14:49:06,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-17 14:49:06,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 326 statements into 1 equivalence classes. [2025-03-17 14:49:06,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 326 of 326 statements. [2025-03-17 14:49:06,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:06,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:06,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-17 14:49:06,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1332 proven. 198 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2025-03-17 14:49:07,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:07,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 214 proven. 282 refuted. 0 times theorem prover too weak. 2479 trivial. 0 not checked. [2025-03-17 14:49:07,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724035088] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:07,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:07,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 23 [2025-03-17 14:49:07,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120631039] [2025-03-17 14:49:07,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:07,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 14:49:07,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:07,330 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 14:49:07,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2025-03-17 14:49:07,331 INFO L87 Difference]: Start difference. First operand 1647 states and 2125 transitions. Second operand has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 20 states have internal predecessors, (88), 12 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2025-03-17 14:49:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:07,830 INFO L93 Difference]: Finished difference Result 2982 states and 4037 transitions. [2025-03-17 14:49:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-03-17 14:49:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 20 states have internal predecessors, (88), 12 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 326 [2025-03-17 14:49:07,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:07,836 INFO L225 Difference]: With dead ends: 2982 [2025-03-17 14:49:07,836 INFO L226 Difference]: Without dead ends: 1534 [2025-03-17 14:49:07,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 634 SyntacticMatches, 13 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=1336, Unknown=0, NotChecked=0, Total=1560 [2025-03-17 14:49:07,841 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 69 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:07,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 330 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2025-03-17 14:49:07,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1520. [2025-03-17 14:49:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1229 states have (on average 1.1700569568755086) internal successors, (1438), 1219 states have internal predecessors, (1438), 237 states have call successors, (237), 40 states have call predecessors, (237), 49 states have return successors, (268), 260 states have call predecessors, (268), 237 states have call successors, (268) [2025-03-17 14:49:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 1943 transitions. [2025-03-17 14:49:07,902 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 1943 transitions. Word has length 326 [2025-03-17 14:49:07,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:07,903 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 1943 transitions. [2025-03-17 14:49:07,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 20 states have internal predecessors, (88), 12 states have call successors, (18), 5 states have call predecessors, (18), 2 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2025-03-17 14:49:07,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 1943 transitions. [2025-03-17 14:49:07,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2025-03-17 14:49:07,906 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:07,906 INFO L218 NwaCegarLoop]: trace histogram [24, 23, 16, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:07,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-17 14:49:08,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:08,106 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:08,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash -342136681, now seen corresponding path program 3 times [2025-03-17 14:49:08,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:08,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368431886] [2025-03-17 14:49:08,107 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:08,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:08,119 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 244 statements into 9 equivalence classes. [2025-03-17 14:49:08,152 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 205 of 244 statements. [2025-03-17 14:49:08,152 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 14:49:08,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 298 proven. 12 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2025-03-17 14:49:08,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:08,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368431886] [2025-03-17 14:49:08,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368431886] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:08,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606012785] [2025-03-17 14:49:08,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:08,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:08,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:08,318 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) [2025-03-17 14:49:08,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-17 14:49:08,352 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 244 statements into 9 equivalence classes. [2025-03-17 14:49:08,390 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 205 of 244 statements. [2025-03-17 14:49:08,390 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 14:49:08,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:08,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 14:49:08,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 298 proven. 12 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2025-03-17 14:49:08,444 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:08,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 312 proven. 12 refuted. 0 times theorem prover too weak. 1272 trivial. 0 not checked. [2025-03-17 14:49:08,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606012785] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:08,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:08,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 11 [2025-03-17 14:49:08,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675736169] [2025-03-17 14:49:08,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:08,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 14:49:08,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:08,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 14:49:08,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:49:08,735 INFO L87 Difference]: Start difference. First operand 1520 states and 1943 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 14:49:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:08,841 INFO L93 Difference]: Finished difference Result 1976 states and 2874 transitions. [2025-03-17 14:49:08,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 14:49:08,841 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) Word has length 244 [2025-03-17 14:49:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:08,853 INFO L225 Difference]: With dead ends: 1976 [2025-03-17 14:49:08,853 INFO L226 Difference]: Without dead ends: 1975 [2025-03-17 14:49:08,854 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 480 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2025-03-17 14:49:08,855 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 11 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:08,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 181 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:49:08,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2025-03-17 14:49:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1704. [2025-03-17 14:49:08,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1377 states have (on average 1.167755991285403) internal successors, (1608), 1354 states have internal predecessors, (1608), 259 states have call successors, (259), 40 states have call predecessors, (259), 63 states have return successors, (424), 309 states have call predecessors, (424), 259 states have call successors, (424) [2025-03-17 14:49:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2291 transitions. [2025-03-17 14:49:08,988 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2291 transitions. Word has length 244 [2025-03-17 14:49:08,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:08,988 INFO L471 AbstractCegarLoop]: Abstraction has 1704 states and 2291 transitions. [2025-03-17 14:49:08,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-17 14:49:08,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2291 transitions. [2025-03-17 14:49:08,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2025-03-17 14:49:08,992 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:08,992 INFO L218 NwaCegarLoop]: trace histogram [24, 24, 18, 11, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 1, 1, 1, 1] [2025-03-17 14:49:08,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-17 14:49:09,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2025-03-17 14:49:09,195 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:09,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:09,195 INFO L85 PathProgramCache]: Analyzing trace with hash 509452814, now seen corresponding path program 1 times [2025-03-17 14:49:09,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:09,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987715170] [2025-03-17 14:49:09,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:09,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:09,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 264 statements into 1 equivalence classes. [2025-03-17 14:49:09,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 264 of 264 statements. [2025-03-17 14:49:09,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:09,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 171 proven. 34 refuted. 0 times theorem prover too weak. 1598 trivial. 0 not checked. [2025-03-17 14:49:09,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:09,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987715170] [2025-03-17 14:49:09,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987715170] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:09,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176083519] [2025-03-17 14:49:09,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 14:49:09,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:09,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:09,365 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) [2025-03-17 14:49:09,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-17 14:49:09,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 264 statements into 1 equivalence classes. [2025-03-17 14:49:09,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 264 of 264 statements. [2025-03-17 14:49:09,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:09,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:09,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:49:09,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:09,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 716 proven. 32 refuted. 0 times theorem prover too weak. 1055 trivial. 0 not checked. [2025-03-17 14:49:09,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:09,768 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 171 proven. 34 refuted. 0 times theorem prover too weak. 1598 trivial. 0 not checked. [2025-03-17 14:49:09,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176083519] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:09,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:09,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2025-03-17 14:49:09,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106112433] [2025-03-17 14:49:09,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:09,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-03-17 14:49:09,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:09,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-03-17 14:49:09,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2025-03-17 14:49:09,770 INFO L87 Difference]: Start difference. First operand 1704 states and 2291 transitions. Second operand has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-03-17 14:49:09,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:09,965 INFO L93 Difference]: Finished difference Result 1810 states and 2404 transitions. [2025-03-17 14:49:09,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 14:49:09,966 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 264 [2025-03-17 14:49:09,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:09,977 INFO L225 Difference]: With dead ends: 1810 [2025-03-17 14:49:09,977 INFO L226 Difference]: Without dead ends: 1691 [2025-03-17 14:49:09,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 509 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2025-03-17 14:49:09,978 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:09,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 346 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2025-03-17 14:49:10,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1690. [2025-03-17 14:49:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1365 states have (on average 1.1684981684981686) internal successors, (1595), 1342 states have internal predecessors, (1595), 257 states have call successors, (257), 40 states have call predecessors, (257), 63 states have return successors, (422), 307 states have call predecessors, (422), 257 states have call successors, (422) [2025-03-17 14:49:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2274 transitions. [2025-03-17 14:49:10,044 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2274 transitions. Word has length 264 [2025-03-17 14:49:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:10,044 INFO L471 AbstractCegarLoop]: Abstraction has 1690 states and 2274 transitions. [2025-03-17 14:49:10,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.0) internal successors, (84), 21 states have internal predecessors, (84), 8 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-03-17 14:49:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2274 transitions. [2025-03-17 14:49:10,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2025-03-17 14:49:10,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:10,046 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1] [2025-03-17 14:49:10,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:10,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-03-17 14:49:10,251 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:10,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1910921514, now seen corresponding path program 4 times [2025-03-17 14:49:10,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:10,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119817159] [2025-03-17 14:49:10,252 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:10,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:10,258 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 211 statements into 2 equivalence classes. [2025-03-17 14:49:10,271 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 14:49:10,271 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:49:10,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2025-03-17 14:49:11,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:11,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119817159] [2025-03-17 14:49:11,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119817159] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:11,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204768587] [2025-03-17 14:49:11,122 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:11,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:11,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:11,124 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) [2025-03-17 14:49:11,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-17 14:49:11,161 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 211 statements into 2 equivalence classes. [2025-03-17 14:49:11,206 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 211 of 211 statements. [2025-03-17 14:49:11,206 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-17 14:49:11,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:11,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-17 14:49:11,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:11,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2025-03-17 14:49:11,327 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:12,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2277 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2025-03-17 14:49:12,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204768587] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:12,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:12,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2025-03-17 14:49:12,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189335330] [2025-03-17 14:49:12,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:12,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2025-03-17 14:49:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:12,712 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2025-03-17 14:49:12,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2025-03-17 14:49:12,714 INFO L87 Difference]: Start difference. First operand 1690 states and 2274 transitions. Second operand has 94 states, 93 states have (on average 2.064516129032258) internal successors, (192), 94 states have internal predecessors, (192), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-17 14:49:13,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:13,237 INFO L93 Difference]: Finished difference Result 3404 states and 4836 transitions. [2025-03-17 14:49:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2025-03-17 14:49:13,237 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.064516129032258) internal successors, (192), 94 states have internal predecessors, (192), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 211 [2025-03-17 14:49:13,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:13,249 INFO L225 Difference]: With dead ends: 3404 [2025-03-17 14:49:13,249 INFO L226 Difference]: Without dead ends: 3403 [2025-03-17 14:49:13,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2509 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2025-03-17 14:49:13,252 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:13,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 303 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:13,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2025-03-17 14:49:13,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 2530. [2025-03-17 14:49:13,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2037 states have (on average 1.1953853706431026) internal successors, (2435), 2014 states have internal predecessors, (2435), 425 states have call successors, (425), 40 states have call predecessors, (425), 63 states have return successors, (590), 475 states have call predecessors, (590), 425 states have call successors, (590) [2025-03-17 14:49:13,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3450 transitions. [2025-03-17 14:49:13,373 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3450 transitions. Word has length 211 [2025-03-17 14:49:13,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:13,374 INFO L471 AbstractCegarLoop]: Abstraction has 2530 states and 3450 transitions. [2025-03-17 14:49:13,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.064516129032258) internal successors, (192), 94 states have internal predecessors, (192), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-03-17 14:49:13,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3450 transitions. [2025-03-17 14:49:13,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2025-03-17 14:49:13,381 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:13,381 INFO L218 NwaCegarLoop]: trace histogram [25, 25, 18, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 4, 1, 1, 1, 1] [2025-03-17 14:49:13,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-17 14:49:13,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:13,597 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:13,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:13,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1154204228, now seen corresponding path program 2 times [2025-03-17 14:49:13,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:13,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208199153] [2025-03-17 14:49:13,597 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:13,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:13,607 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 273 statements into 2 equivalence classes. [2025-03-17 14:49:13,619 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 273 of 273 statements. [2025-03-17 14:49:13,619 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:13,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 158 proven. 138 refuted. 0 times theorem prover too weak. 1658 trivial. 0 not checked. [2025-03-17 14:49:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208199153] [2025-03-17 14:49:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208199153] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411709053] [2025-03-17 14:49:13,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:13,787 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) [2025-03-17 14:49:13,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-17 14:49:13,833 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 273 statements into 2 equivalence classes. [2025-03-17 14:49:13,885 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 273 of 273 statements. [2025-03-17 14:49:13,885 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:13,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:13,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-17 14:49:13,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 4 proven. 245 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2025-03-17 14:49:13,987 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1954 backedges. 4 proven. 245 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2025-03-17 14:49:14,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411709053] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:14,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:14,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2025-03-17 14:49:14,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911914911] [2025-03-17 14:49:14,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:14,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-03-17 14:49:14,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:14,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-03-17 14:49:14,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2025-03-17 14:49:14,218 INFO L87 Difference]: Start difference. First operand 2530 states and 3450 transitions. Second operand has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 13 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2025-03-17 14:49:14,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:14,994 INFO L93 Difference]: Finished difference Result 2555 states and 3477 transitions. [2025-03-17 14:49:14,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2025-03-17 14:49:14,995 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 13 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) Word has length 273 [2025-03-17 14:49:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:15,001 INFO L225 Difference]: With dead ends: 2555 [2025-03-17 14:49:15,001 INFO L226 Difference]: Without dead ends: 2493 [2025-03-17 14:49:15,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 619 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2554 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1163, Invalid=7027, Unknown=0, NotChecked=0, Total=8190 [2025-03-17 14:49:15,004 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 13 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:15,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 400 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2025-03-17 14:49:15,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1144. [2025-03-17 14:49:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 925 states have (on average 1.134054054054054) internal successors, (1049), 901 states have internal predecessors, (1049), 152 states have call successors, (152), 40 states have call predecessors, (152), 63 states have return successors, (316), 202 states have call predecessors, (316), 152 states have call successors, (316) [2025-03-17 14:49:15,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1517 transitions. [2025-03-17 14:49:15,082 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1517 transitions. Word has length 273 [2025-03-17 14:49:15,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:15,082 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1517 transitions. [2025-03-17 14:49:15,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.291666666666667) internal successors, (103), 25 states have internal predecessors, (103), 13 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15) [2025-03-17 14:49:15,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1517 transitions. [2025-03-17 14:49:15,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2025-03-17 14:49:15,085 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:15,085 INFO L218 NwaCegarLoop]: trace histogram [29, 27, 19, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 14:49:15,091 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-17 14:49:15,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:15,286 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:15,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:15,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1318817242, now seen corresponding path program 2 times [2025-03-17 14:49:15,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:15,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596554340] [2025-03-17 14:49:15,287 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:15,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:15,295 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 288 statements into 2 equivalence classes. [2025-03-17 14:49:15,308 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 288 of 288 statements. [2025-03-17 14:49:15,308 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:15,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 293 proven. 192 refuted. 0 times theorem prover too weak. 1798 trivial. 0 not checked. [2025-03-17 14:49:15,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:15,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596554340] [2025-03-17 14:49:15,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596554340] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:15,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870062146] [2025-03-17 14:49:15,531 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:15,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:15,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:15,533 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) [2025-03-17 14:49:15,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-17 14:49:15,574 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 288 statements into 2 equivalence classes. [2025-03-17 14:49:15,622 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 288 of 288 statements. [2025-03-17 14:49:15,623 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:15,623 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:15,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 14:49:15,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:15,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 1128 proven. 86 refuted. 0 times theorem prover too weak. 1069 trivial. 0 not checked. [2025-03-17 14:49:15,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:15,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2283 backedges. 293 proven. 192 refuted. 0 times theorem prover too weak. 1798 trivial. 0 not checked. [2025-03-17 14:49:15,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870062146] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:15,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:15,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 24 [2025-03-17 14:49:15,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914677847] [2025-03-17 14:49:15,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:15,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-17 14:49:15,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:15,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-17 14:49:15,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2025-03-17 14:49:15,924 INFO L87 Difference]: Start difference. First operand 1144 states and 1517 transitions. Second operand has 24 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 24 states have internal predecessors, (91), 12 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 12 states have call predecessors, (19), 12 states have call successors, (19) [2025-03-17 14:49:16,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:16,165 INFO L93 Difference]: Finished difference Result 1688 states and 2247 transitions. [2025-03-17 14:49:16,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-17 14:49:16,165 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 24 states have internal predecessors, (91), 12 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 12 states have call predecessors, (19), 12 states have call successors, (19) Word has length 288 [2025-03-17 14:49:16,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:16,169 INFO L225 Difference]: With dead ends: 1688 [2025-03-17 14:49:16,169 INFO L226 Difference]: Without dead ends: 1207 [2025-03-17 14:49:16,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 604 GetRequests, 555 SyntacticMatches, 14 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=219, Invalid=1113, Unknown=0, NotChecked=0, Total=1332 [2025-03-17 14:49:16,171 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:16,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 460 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:16,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2025-03-17 14:49:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1195. [2025-03-17 14:49:16,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 969 states have (on average 1.1269349845201238) internal successors, (1092), 943 states have internal predecessors, (1092), 159 states have call successors, (159), 40 states have call predecessors, (159), 63 states have return successors, (323), 211 states have call predecessors, (323), 159 states have call successors, (323) [2025-03-17 14:49:16,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1574 transitions. [2025-03-17 14:49:16,228 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1574 transitions. Word has length 288 [2025-03-17 14:49:16,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:16,229 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1574 transitions. [2025-03-17 14:49:16,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 24 states have internal predecessors, (91), 12 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 12 states have call predecessors, (19), 12 states have call successors, (19) [2025-03-17 14:49:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1574 transitions. [2025-03-17 14:49:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2025-03-17 14:49:16,231 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:16,231 INFO L218 NwaCegarLoop]: trace histogram [36, 33, 25, 14, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:16,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:16,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-17 14:49:16,432 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:16,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:16,433 INFO L85 PathProgramCache]: Analyzing trace with hash -642129146, now seen corresponding path program 3 times [2025-03-17 14:49:16,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:16,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405800865] [2025-03-17 14:49:16,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:16,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:16,441 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 353 statements into 11 equivalence classes. [2025-03-17 14:49:16,459 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 215 of 353 statements. [2025-03-17 14:49:16,459 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 14:49:16,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:16,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3521 backedges. 449 proven. 10 refuted. 0 times theorem prover too weak. 3062 trivial. 0 not checked. [2025-03-17 14:49:16,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:16,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405800865] [2025-03-17 14:49:16,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405800865] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:16,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305335785] [2025-03-17 14:49:16,551 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 14:49:16,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:16,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:16,553 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) [2025-03-17 14:49:16,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-17 14:49:16,596 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 353 statements into 11 equivalence classes. [2025-03-17 14:49:16,634 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 215 of 353 statements. [2025-03-17 14:49:16,635 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-03-17 14:49:16,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:16,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-03-17 14:49:16,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 3521 backedges. 449 proven. 10 refuted. 0 times theorem prover too weak. 3062 trivial. 0 not checked. [2025-03-17 14:49:16,686 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3521 backedges. 449 proven. 10 refuted. 0 times theorem prover too weak. 3062 trivial. 0 not checked. [2025-03-17 14:49:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305335785] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:17,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2025-03-17 14:49:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927991291] [2025-03-17 14:49:17,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:17,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 14:49:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:17,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 14:49:17,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2025-03-17 14:49:17,014 INFO L87 Difference]: Start difference. First operand 1195 states and 1574 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 14:49:17,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:17,128 INFO L93 Difference]: Finished difference Result 1482 states and 2043 transitions. [2025-03-17 14:49:17,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 14:49:17,129 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) Word has length 353 [2025-03-17 14:49:17,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:17,132 INFO L225 Difference]: With dead ends: 1482 [2025-03-17 14:49:17,133 INFO L226 Difference]: Without dead ends: 1481 [2025-03-17 14:49:17,133 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 697 SyntacticMatches, 9 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:49:17,133 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 20 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:17,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 196 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 14:49:17,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2025-03-17 14:49:17,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1261. [2025-03-17 14:49:17,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1022 states have (on average 1.1105675146771037) internal successors, (1135), 996 states have internal predecessors, (1135), 165 states have call successors, (165), 40 states have call predecessors, (165), 70 states have return successors, (409), 224 states have call predecessors, (409), 165 states have call successors, (409) [2025-03-17 14:49:17,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1709 transitions. [2025-03-17 14:49:17,196 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1709 transitions. Word has length 353 [2025-03-17 14:49:17,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:17,196 INFO L471 AbstractCegarLoop]: Abstraction has 1261 states and 1709 transitions. [2025-03-17 14:49:17,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 4 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2025-03-17 14:49:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1709 transitions. [2025-03-17 14:49:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2025-03-17 14:49:17,199 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:17,199 INFO L218 NwaCegarLoop]: trace histogram [34, 29, 24, 15, 11, 11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:17,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-17 14:49:17,403 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,SelfDestructingSolverStorable37 [2025-03-17 14:49:17,403 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:17,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:17,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1729365632, now seen corresponding path program 4 times [2025-03-17 14:49:17,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:17,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555321875] [2025-03-17 14:49:17,403 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:17,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:17,411 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 324 statements into 2 equivalence classes. [2025-03-17 14:49:17,419 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 214 of 324 statements. [2025-03-17 14:49:17,419 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 14:49:17,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2941 backedges. 776 proven. 419 refuted. 0 times theorem prover too weak. 1746 trivial. 0 not checked. [2025-03-17 14:49:17,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:17,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555321875] [2025-03-17 14:49:17,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555321875] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:17,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961287309] [2025-03-17 14:49:17,617 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:17,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:17,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:17,619 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) [2025-03-17 14:49:17,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-17 14:49:17,662 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 324 statements into 2 equivalence classes. [2025-03-17 14:49:17,699 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 214 of 324 statements. [2025-03-17 14:49:17,699 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 14:49:17,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:17,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 565 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 14:49:17,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2941 backedges. 1701 proven. 109 refuted. 0 times theorem prover too weak. 1131 trivial. 0 not checked. [2025-03-17 14:49:17,838 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2941 backedges. 776 proven. 420 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2025-03-17 14:49:18,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961287309] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:18,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:18,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 27 [2025-03-17 14:49:18,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737922378] [2025-03-17 14:49:18,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:18,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-17 14:49:18,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:18,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-17 14:49:18,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2025-03-17 14:49:18,407 INFO L87 Difference]: Start difference. First operand 1261 states and 1709 transitions. Second operand has 27 states, 27 states have (on average 5.333333333333333) internal successors, (144), 26 states have internal predecessors, (144), 17 states have call successors, (25), 5 states have call predecessors, (25), 7 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) [2025-03-17 14:49:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:19,078 INFO L93 Difference]: Finished difference Result 3669 states and 5951 transitions. [2025-03-17 14:49:19,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2025-03-17 14:49:19,078 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.333333333333333) internal successors, (144), 26 states have internal predecessors, (144), 17 states have call successors, (25), 5 states have call predecessors, (25), 7 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) Word has length 324 [2025-03-17 14:49:19,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:19,086 INFO L225 Difference]: With dead ends: 3669 [2025-03-17 14:49:19,086 INFO L226 Difference]: Without dead ends: 2809 [2025-03-17 14:49:19,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 637 SyntacticMatches, 14 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=573, Invalid=2079, Unknown=0, NotChecked=0, Total=2652 [2025-03-17 14:49:19,091 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 328 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:19,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 429 Invalid, 838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2025-03-17 14:49:19,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2186. [2025-03-17 14:49:19,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1780 states have (on average 1.1061797752808988) internal successors, (1969), 1710 states have internal predecessors, (1969), 250 states have call successors, (250), 64 states have call predecessors, (250), 152 states have return successors, (915), 411 states have call predecessors, (915), 250 states have call successors, (915) [2025-03-17 14:49:19,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3134 transitions. [2025-03-17 14:49:19,214 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3134 transitions. Word has length 324 [2025-03-17 14:49:19,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:19,215 INFO L471 AbstractCegarLoop]: Abstraction has 2186 states and 3134 transitions. [2025-03-17 14:49:19,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.333333333333333) internal successors, (144), 26 states have internal predecessors, (144), 17 states have call successors, (25), 5 states have call predecessors, (25), 7 states have return successors, (21), 10 states have call predecessors, (21), 12 states have call successors, (21) [2025-03-17 14:49:19,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3134 transitions. [2025-03-17 14:49:19,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2025-03-17 14:49:19,218 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:19,218 INFO L218 NwaCegarLoop]: trace histogram [37, 36, 25, 14, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:19,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-17 14:49:19,418 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,SelfDestructingSolverStorable38 [2025-03-17 14:49:19,419 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:19,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:19,419 INFO L85 PathProgramCache]: Analyzing trace with hash -311422994, now seen corresponding path program 5 times [2025-03-17 14:49:19,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:19,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432498636] [2025-03-17 14:49:19,419 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:19,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:19,430 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 373 statements into 12 equivalence classes. [2025-03-17 14:49:19,437 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 147 of 373 statements. [2025-03-17 14:49:19,438 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-17 14:49:19,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3918 backedges. 590 proven. 169 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2025-03-17 14:49:19,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:19,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432498636] [2025-03-17 14:49:19,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432498636] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:19,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1579024689] [2025-03-17 14:49:19,497 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:19,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:19,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:19,499 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) [2025-03-17 14:49:19,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-17 14:49:19,548 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 373 statements into 12 equivalence classes. [2025-03-17 14:49:19,575 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) and asserted 147 of 373 statements. [2025-03-17 14:49:19,575 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2025-03-17 14:49:19,575 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:19,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 14:49:19,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:19,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3918 backedges. 590 proven. 169 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2025-03-17 14:49:19,615 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:19,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3918 backedges. 590 proven. 171 refuted. 0 times theorem prover too weak. 3157 trivial. 0 not checked. [2025-03-17 14:49:19,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1579024689] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:19,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:19,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 11 [2025-03-17 14:49:19,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236246573] [2025-03-17 14:49:19,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:19,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 14:49:19,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:19,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 14:49:19,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-03-17 14:49:19,916 INFO L87 Difference]: Start difference. First operand 2186 states and 3134 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2025-03-17 14:49:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:20,207 INFO L93 Difference]: Finished difference Result 4051 states and 6443 transitions. [2025-03-17 14:49:20,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 14:49:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 373 [2025-03-17 14:49:20,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:20,216 INFO L225 Difference]: With dead ends: 4051 [2025-03-17 14:49:20,217 INFO L226 Difference]: Without dead ends: 2358 [2025-03-17 14:49:20,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 758 GetRequests, 741 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-03-17 14:49:20,224 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 59 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:20,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 127 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:20,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2025-03-17 14:49:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2155. [2025-03-17 14:49:20,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 1752 states have (on average 1.0987442922374429) internal successors, (1925), 1682 states have internal predecessors, (1925), 264 states have call successors, (264), 75 states have call predecessors, (264), 135 states have return successors, (689), 397 states have call predecessors, (689), 264 states have call successors, (689) [2025-03-17 14:49:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 2878 transitions. [2025-03-17 14:49:20,349 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 2878 transitions. Word has length 373 [2025-03-17 14:49:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:20,349 INFO L471 AbstractCegarLoop]: Abstraction has 2155 states and 2878 transitions. [2025-03-17 14:49:20,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 5 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2025-03-17 14:49:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 2878 transitions. [2025-03-17 14:49:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-03-17 14:49:20,352 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:20,352 INFO L218 NwaCegarLoop]: trace histogram [30, 27, 21, 12, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:20,359 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-03-17 14:49:20,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-17 14:49:20,553 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:20,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:20,554 INFO L85 PathProgramCache]: Analyzing trace with hash 961711620, now seen corresponding path program 6 times [2025-03-17 14:49:20,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:20,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762822914] [2025-03-17 14:49:20,554 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:20,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:20,562 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 295 statements into 9 equivalence classes. [2025-03-17 14:49:20,595 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 215 of 295 statements. [2025-03-17 14:49:20,595 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-03-17 14:49:20,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 410 proven. 53 refuted. 0 times theorem prover too weak. 1930 trivial. 0 not checked. [2025-03-17 14:49:20,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:20,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762822914] [2025-03-17 14:49:20,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762822914] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:20,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250389508] [2025-03-17 14:49:20,884 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:20,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:20,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:20,887 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) [2025-03-17 14:49:20,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-17 14:49:20,933 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 295 statements into 9 equivalence classes. [2025-03-17 14:49:20,976 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 215 of 295 statements. [2025-03-17 14:49:20,976 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-03-17 14:49:20,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:20,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-17 14:49:20,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 410 proven. 14 refuted. 0 times theorem prover too weak. 1969 trivial. 0 not checked. [2025-03-17 14:49:21,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:21,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2393 backedges. 426 proven. 14 refuted. 0 times theorem prover too weak. 1953 trivial. 0 not checked. [2025-03-17 14:49:21,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250389508] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:21,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:21,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 9] total 16 [2025-03-17 14:49:21,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225995360] [2025-03-17 14:49:21,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:21,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-03-17 14:49:21,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:21,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-03-17 14:49:21,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2025-03-17 14:49:21,469 INFO L87 Difference]: Start difference. First operand 2155 states and 2878 transitions. Second operand has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (14), 11 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-17 14:49:21,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:21,669 INFO L93 Difference]: Finished difference Result 3082 states and 4309 transitions. [2025-03-17 14:49:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 14:49:21,669 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (14), 11 states have call predecessors, (14), 4 states have call successors, (14) Word has length 295 [2025-03-17 14:49:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:21,677 INFO L225 Difference]: With dead ends: 3082 [2025-03-17 14:49:21,677 INFO L226 Difference]: Without dead ends: 3081 [2025-03-17 14:49:21,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 582 SyntacticMatches, 9 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:49:21,678 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 11 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:21,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 267 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:21,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2025-03-17 14:49:21,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 2389. [2025-03-17 14:49:21,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 1946 states have (on average 1.1032887975334018) internal successors, (2147), 1850 states have internal predecessors, (2147), 284 states have call successors, (284), 75 states have call predecessors, (284), 155 states have return successors, (972), 463 states have call predecessors, (972), 284 states have call successors, (972) [2025-03-17 14:49:21,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 3403 transitions. [2025-03-17 14:49:21,821 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 3403 transitions. Word has length 295 [2025-03-17 14:49:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:21,823 INFO L471 AbstractCegarLoop]: Abstraction has 2389 states and 3403 transitions. [2025-03-17 14:49:21,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.125) internal successors, (66), 16 states have internal predecessors, (66), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (14), 11 states have call predecessors, (14), 4 states have call successors, (14) [2025-03-17 14:49:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 3403 transitions. [2025-03-17 14:49:21,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2025-03-17 14:49:21,828 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:21,828 INFO L218 NwaCegarLoop]: trace histogram [39, 34, 29, 18, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:21,837 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-03-17 14:49:22,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:22,030 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:22,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:22,030 INFO L85 PathProgramCache]: Analyzing trace with hash -328763324, now seen corresponding path program 4 times [2025-03-17 14:49:22,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:22,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905054071] [2025-03-17 14:49:22,030 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:22,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:22,038 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 375 statements into 2 equivalence classes. [2025-03-17 14:49:22,049 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 247 of 375 statements. [2025-03-17 14:49:22,049 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 14:49:22,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4018 backedges. 933 proven. 601 refuted. 0 times theorem prover too weak. 2484 trivial. 0 not checked. [2025-03-17 14:49:22,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:22,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905054071] [2025-03-17 14:49:22,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905054071] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:22,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625544808] [2025-03-17 14:49:22,274 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:22,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:22,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:22,276 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) [2025-03-17 14:49:22,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-17 14:49:22,331 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 375 statements into 2 equivalence classes. [2025-03-17 14:49:22,379 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 247 of 375 statements. [2025-03-17 14:49:22,379 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 14:49:22,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:22,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 14:49:22,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4018 backedges. 2372 proven. 118 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked. [2025-03-17 14:49:22,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4018 backedges. 935 proven. 607 refuted. 0 times theorem prover too weak. 2476 trivial. 0 not checked. [2025-03-17 14:49:23,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625544808] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:23,072 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:23,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 19] total 28 [2025-03-17 14:49:23,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136726681] [2025-03-17 14:49:23,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:23,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-03-17 14:49:23,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:23,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-03-17 14:49:23,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2025-03-17 14:49:23,074 INFO L87 Difference]: Start difference. First operand 2389 states and 3403 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 24 states have internal predecessors, (137), 15 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2025-03-17 14:49:23,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:23,953 INFO L93 Difference]: Finished difference Result 4988 states and 7249 transitions. [2025-03-17 14:49:23,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2025-03-17 14:49:23,954 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 24 states have internal predecessors, (137), 15 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) Word has length 375 [2025-03-17 14:49:23,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:23,964 INFO L225 Difference]: With dead ends: 4988 [2025-03-17 14:49:23,964 INFO L226 Difference]: Without dead ends: 3027 [2025-03-17 14:49:23,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 742 SyntacticMatches, 12 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=625, Invalid=2345, Unknown=0, NotChecked=0, Total=2970 [2025-03-17 14:49:23,971 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 274 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:23,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 945 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 14:49:23,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2025-03-17 14:49:24,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 2685. [2025-03-17 14:49:24,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2191 states have (on average 1.1136467366499316) internal successors, (2440), 2074 states have internal predecessors, (2440), 303 states have call successors, (303), 96 states have call predecessors, (303), 187 states have return successors, (996), 514 states have call predecessors, (996), 303 states have call successors, (996) [2025-03-17 14:49:24,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3739 transitions. [2025-03-17 14:49:24,222 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3739 transitions. Word has length 375 [2025-03-17 14:49:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:24,222 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3739 transitions. [2025-03-17 14:49:24,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 24 states have internal predecessors, (137), 15 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2025-03-17 14:49:24,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3739 transitions. [2025-03-17 14:49:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2025-03-17 14:49:24,225 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:24,225 INFO L218 NwaCegarLoop]: trace histogram [38, 35, 27, 16, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 9, 9, 5, 5, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 14:49:24,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:24,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:24,426 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:24,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1375344637, now seen corresponding path program 5 times [2025-03-17 14:49:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218835719] [2025-03-17 14:49:24,427 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:24,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:24,434 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 368 statements into 11 equivalence classes. [2025-03-17 14:49:24,462 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 355 of 368 statements. [2025-03-17 14:49:24,463 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-03-17 14:49:24,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3867 backedges. 829 proven. 123 refuted. 0 times theorem prover too weak. 2915 trivial. 0 not checked. [2025-03-17 14:49:24,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:24,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218835719] [2025-03-17 14:49:24,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218835719] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:24,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056452272] [2025-03-17 14:49:24,680 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:24,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:24,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:24,682 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) [2025-03-17 14:49:24,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-17 14:49:24,736 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 368 statements into 11 equivalence classes. [2025-03-17 14:49:24,799 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) and asserted 355 of 368 statements. [2025-03-17 14:49:24,799 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2025-03-17 14:49:24,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:24,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 14:49:24,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3867 backedges. 1631 proven. 70 refuted. 0 times theorem prover too weak. 2166 trivial. 0 not checked. [2025-03-17 14:49:24,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:25,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3867 backedges. 491 proven. 213 refuted. 0 times theorem prover too weak. 3163 trivial. 0 not checked. [2025-03-17 14:49:25,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056452272] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:25,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:25,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 35 [2025-03-17 14:49:25,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498840038] [2025-03-17 14:49:25,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:25,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-03-17 14:49:25,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:25,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-03-17 14:49:25,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1068, Unknown=0, NotChecked=0, Total=1190 [2025-03-17 14:49:25,384 INFO L87 Difference]: Start difference. First operand 2685 states and 3739 transitions. Second operand has 35 states, 35 states have (on average 4.2) internal successors, (147), 34 states have internal predecessors, (147), 17 states have call successors, (29), 3 states have call predecessors, (29), 6 states have return successors, (28), 18 states have call predecessors, (28), 17 states have call successors, (28) [2025-03-17 14:49:26,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:26,223 INFO L93 Difference]: Finished difference Result 4873 states and 7081 transitions. [2025-03-17 14:49:26,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-17 14:49:26,223 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.2) internal successors, (147), 34 states have internal predecessors, (147), 17 states have call successors, (29), 3 states have call predecessors, (29), 6 states have return successors, (28), 18 states have call predecessors, (28), 17 states have call successors, (28) Word has length 368 [2025-03-17 14:49:26,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:26,233 INFO L225 Difference]: With dead ends: 4873 [2025-03-17 14:49:26,233 INFO L226 Difference]: Without dead ends: 2524 [2025-03-17 14:49:26,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 711 SyntacticMatches, 8 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=405, Invalid=3627, Unknown=0, NotChecked=0, Total=4032 [2025-03-17 14:49:26,240 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 222 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:26,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 423 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 14:49:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2025-03-17 14:49:26,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2215. [2025-03-17 14:49:26,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1793 states have (on average 1.0959286112660345) internal successors, (1965), 1729 states have internal predecessors, (1965), 258 states have call successors, (258), 86 states have call predecessors, (258), 160 states have return successors, (736), 399 states have call predecessors, (736), 257 states have call successors, (736) [2025-03-17 14:49:26,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 2959 transitions. [2025-03-17 14:49:26,377 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 2959 transitions. Word has length 368 [2025-03-17 14:49:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:26,379 INFO L471 AbstractCegarLoop]: Abstraction has 2215 states and 2959 transitions. [2025-03-17 14:49:26,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.2) internal successors, (147), 34 states have internal predecessors, (147), 17 states have call successors, (29), 3 states have call predecessors, (29), 6 states have return successors, (28), 18 states have call predecessors, (28), 17 states have call successors, (28) [2025-03-17 14:49:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 2959 transitions. [2025-03-17 14:49:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2025-03-17 14:49:26,383 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:26,383 INFO L218 NwaCegarLoop]: trace histogram [48, 46, 35, 19, 16, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:26,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-03-17 14:49:26,583 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,SelfDestructingSolverStorable42 [2025-03-17 14:49:26,584 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:26,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 433136973, now seen corresponding path program 6 times [2025-03-17 14:49:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:26,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301501066] [2025-03-17 14:49:26,584 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:26,594 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 480 statements into 16 equivalence classes. [2025-03-17 14:49:26,614 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 183 of 480 statements. [2025-03-17 14:49:26,614 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-03-17 14:49:26,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:26,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6586 backedges. 810 proven. 310 refuted. 0 times theorem prover too weak. 5466 trivial. 0 not checked. [2025-03-17 14:49:26,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:26,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301501066] [2025-03-17 14:49:26,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301501066] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:26,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718676830] [2025-03-17 14:49:26,781 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:26,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:26,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:26,782 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) [2025-03-17 14:49:26,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-03-17 14:49:26,838 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 480 statements into 16 equivalence classes. [2025-03-17 14:49:26,872 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) and asserted 183 of 480 statements. [2025-03-17 14:49:26,872 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2025-03-17 14:49:26,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:26,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 14:49:26,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 6586 backedges. 2808 proven. 107 refuted. 0 times theorem prover too weak. 3671 trivial. 0 not checked. [2025-03-17 14:49:26,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6586 backedges. 810 proven. 312 refuted. 0 times theorem prover too weak. 5464 trivial. 0 not checked. [2025-03-17 14:49:27,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718676830] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:27,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:27,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 15] total 22 [2025-03-17 14:49:27,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144727813] [2025-03-17 14:49:27,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:27,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-17 14:49:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:27,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-17 14:49:27,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2025-03-17 14:49:27,258 INFO L87 Difference]: Start difference. First operand 2215 states and 2959 transitions. Second operand has 22 states, 22 states have (on average 4.954545454545454) internal successors, (109), 21 states have internal predecessors, (109), 9 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 11 states have call predecessors, (20), 9 states have call successors, (20) [2025-03-17 14:49:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:27,569 INFO L93 Difference]: Finished difference Result 2923 states and 4069 transitions. [2025-03-17 14:49:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-17 14:49:27,570 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.954545454545454) internal successors, (109), 21 states have internal predecessors, (109), 9 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 11 states have call predecessors, (20), 9 states have call successors, (20) Word has length 480 [2025-03-17 14:49:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:27,577 INFO L225 Difference]: With dead ends: 2923 [2025-03-17 14:49:27,577 INFO L226 Difference]: Without dead ends: 2300 [2025-03-17 14:49:27,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 981 GetRequests, 942 SyntacticMatches, 11 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2025-03-17 14:49:27,579 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 39 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:27,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 291 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:27,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2300 states. [2025-03-17 14:49:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2300 to 2195. [2025-03-17 14:49:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 1773 states have (on average 1.0941906373378454) internal successors, (1940), 1714 states have internal predecessors, (1940), 258 states have call successors, (258), 86 states have call predecessors, (258), 160 states have return successors, (736), 394 states have call predecessors, (736), 257 states have call successors, (736) [2025-03-17 14:49:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 2934 transitions. [2025-03-17 14:49:27,716 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 2934 transitions. Word has length 480 [2025-03-17 14:49:27,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:27,717 INFO L471 AbstractCegarLoop]: Abstraction has 2195 states and 2934 transitions. [2025-03-17 14:49:27,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.954545454545454) internal successors, (109), 21 states have internal predecessors, (109), 9 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (20), 11 states have call predecessors, (20), 9 states have call successors, (20) [2025-03-17 14:49:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 2934 transitions. [2025-03-17 14:49:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2025-03-17 14:49:27,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:27,720 INFO L218 NwaCegarLoop]: trace histogram [47, 46, 33, 18, 16, 16, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:27,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-03-17 14:49:27,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:27,920 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:27,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:27,921 INFO L85 PathProgramCache]: Analyzing trace with hash 155486108, now seen corresponding path program 4 times [2025-03-17 14:49:27,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:27,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560880381] [2025-03-17 14:49:27,921 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:27,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:27,929 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 474 statements into 2 equivalence classes. [2025-03-17 14:49:27,941 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 307 of 474 statements. [2025-03-17 14:49:27,941 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 14:49:27,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 6401 backedges. 1164 proven. 591 refuted. 0 times theorem prover too weak. 4646 trivial. 0 not checked. [2025-03-17 14:49:28,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:28,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560880381] [2025-03-17 14:49:28,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560880381] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:28,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990086772] [2025-03-17 14:49:28,078 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-17 14:49:28,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:28,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:28,080 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) [2025-03-17 14:49:28,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-03-17 14:49:28,147 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 474 statements into 2 equivalence classes. [2025-03-17 14:49:28,201 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 307 of 474 statements. [2025-03-17 14:49:28,201 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-03-17 14:49:28,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:28,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-17 14:49:28,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:28,281 INFO L134 CoverageAnalysis]: Checked inductivity of 6401 backedges. 3463 proven. 202 refuted. 0 times theorem prover too weak. 2736 trivial. 0 not checked. [2025-03-17 14:49:28,282 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6401 backedges. 1164 proven. 594 refuted. 0 times theorem prover too weak. 4643 trivial. 0 not checked. [2025-03-17 14:49:28,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990086772] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:28,715 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:28,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14] total 19 [2025-03-17 14:49:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911531074] [2025-03-17 14:49:28,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:28,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 14:49:28,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:28,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 14:49:28,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2025-03-17 14:49:28,716 INFO L87 Difference]: Start difference. First operand 2195 states and 2934 transitions. Second operand has 19 states, 19 states have (on average 6.947368421052632) internal successors, (132), 19 states have internal predecessors, (132), 12 states have call successors, (23), 2 states have call predecessors, (23), 7 states have return successors, (25), 9 states have call predecessors, (25), 12 states have call successors, (25) [2025-03-17 14:49:29,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:29,089 INFO L93 Difference]: Finished difference Result 3803 states and 5239 transitions. [2025-03-17 14:49:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-17 14:49:29,089 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.947368421052632) internal successors, (132), 19 states have internal predecessors, (132), 12 states have call successors, (23), 2 states have call predecessors, (23), 7 states have return successors, (25), 9 states have call predecessors, (25), 12 states have call successors, (25) Word has length 474 [2025-03-17 14:49:29,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:29,097 INFO L225 Difference]: With dead ends: 3803 [2025-03-17 14:49:29,097 INFO L226 Difference]: Without dead ends: 2279 [2025-03-17 14:49:29,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 939 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2025-03-17 14:49:29,102 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 112 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:29,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 330 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 14:49:29,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2025-03-17 14:49:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2195. [2025-03-17 14:49:29,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 1773 states have (on average 1.0941906373378454) internal successors, (1940), 1714 states have internal predecessors, (1940), 258 states have call successors, (258), 86 states have call predecessors, (258), 160 states have return successors, (734), 394 states have call predecessors, (734), 257 states have call successors, (734) [2025-03-17 14:49:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 2932 transitions. [2025-03-17 14:49:29,328 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 2932 transitions. Word has length 474 [2025-03-17 14:49:29,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:29,328 INFO L471 AbstractCegarLoop]: Abstraction has 2195 states and 2932 transitions. [2025-03-17 14:49:29,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.947368421052632) internal successors, (132), 19 states have internal predecessors, (132), 12 states have call successors, (23), 2 states have call predecessors, (23), 7 states have return successors, (25), 9 states have call predecessors, (25), 12 states have call successors, (25) [2025-03-17 14:49:29,329 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 2932 transitions. [2025-03-17 14:49:29,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2025-03-17 14:49:29,334 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:29,334 INFO L218 NwaCegarLoop]: trace histogram [45, 42, 34, 19, 16, 16, 16, 16, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:29,341 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-03-17 14:49:29,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:29,535 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:29,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:29,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2042833925, now seen corresponding path program 7 times [2025-03-17 14:49:29,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:29,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691879904] [2025-03-17 14:49:29,535 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:49:29,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:29,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 451 statements into 1 equivalence classes. [2025-03-17 14:49:29,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 451 of 451 statements. [2025-03-17 14:49:29,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:29,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 632 proven. 259 refuted. 0 times theorem prover too weak. 4881 trivial. 0 not checked. [2025-03-17 14:49:29,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:29,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691879904] [2025-03-17 14:49:29,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691879904] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:29,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760828672] [2025-03-17 14:49:29,832 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:49:29,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:29,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:29,834 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) [2025-03-17 14:49:29,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-03-17 14:49:29,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 451 statements into 1 equivalence classes. [2025-03-17 14:49:29,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 451 of 451 statements. [2025-03-17 14:49:29,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:29,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:29,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 14:49:29,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 2958 proven. 122 refuted. 0 times theorem prover too weak. 2692 trivial. 0 not checked. [2025-03-17 14:49:30,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 632 proven. 259 refuted. 0 times theorem prover too weak. 4881 trivial. 0 not checked. [2025-03-17 14:49:30,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760828672] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:30,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:30,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 29 [2025-03-17 14:49:30,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269968412] [2025-03-17 14:49:30,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:30,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2025-03-17 14:49:30,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:30,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2025-03-17 14:49:30,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2025-03-17 14:49:30,439 INFO L87 Difference]: Start difference. First operand 2195 states and 2932 transitions. Second operand has 29 states, 29 states have (on average 3.7241379310344827) internal successors, (108), 29 states have internal predecessors, (108), 12 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2025-03-17 14:49:30,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:30,795 INFO L93 Difference]: Finished difference Result 2786 states and 3716 transitions. [2025-03-17 14:49:30,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-03-17 14:49:30,796 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.7241379310344827) internal successors, (108), 29 states have internal predecessors, (108), 12 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 451 [2025-03-17 14:49:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:30,802 INFO L225 Difference]: With dead ends: 2786 [2025-03-17 14:49:30,803 INFO L226 Difference]: Without dead ends: 1893 [2025-03-17 14:49:30,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 875 SyntacticMatches, 14 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=318, Invalid=1488, Unknown=0, NotChecked=0, Total=1806 [2025-03-17 14:49:30,806 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 9 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:30,806 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 353 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 14:49:30,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1893 states. [2025-03-17 14:49:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1893 to 1893. [2025-03-17 14:49:30,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1893 states, 1527 states have (on average 1.102815979043877) internal successors, (1684), 1475 states have internal predecessors, (1684), 221 states have call successors, (221), 70 states have call predecessors, (221), 141 states have return successors, (654), 347 states have call predecessors, (654), 220 states have call successors, (654) [2025-03-17 14:49:30,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 2559 transitions. [2025-03-17 14:49:30,927 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 2559 transitions. Word has length 451 [2025-03-17 14:49:30,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:30,927 INFO L471 AbstractCegarLoop]: Abstraction has 1893 states and 2559 transitions. [2025-03-17 14:49:30,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.7241379310344827) internal successors, (108), 29 states have internal predecessors, (108), 12 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2025-03-17 14:49:30,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2559 transitions. [2025-03-17 14:49:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2025-03-17 14:49:30,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:30,930 INFO L218 NwaCegarLoop]: trace histogram [50, 49, 35, 19, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:30,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:31,130 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,SelfDestructingSolverStorable45 [2025-03-17 14:49:31,131 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:31,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:31,131 INFO L85 PathProgramCache]: Analyzing trace with hash 979892221, now seen corresponding path program 5 times [2025-03-17 14:49:31,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:31,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638731218] [2025-03-17 14:49:31,131 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:31,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:31,141 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 507 statements into 18 equivalence classes. [2025-03-17 14:49:31,191 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 473 of 507 statements. [2025-03-17 14:49:31,191 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-17 14:49:31,191 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:32,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7332 backedges. 1440 proven. 802 refuted. 0 times theorem prover too weak. 5090 trivial. 0 not checked. [2025-03-17 14:49:32,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638731218] [2025-03-17 14:49:32,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638731218] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:32,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077430964] [2025-03-17 14:49:32,232 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:32,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:32,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:32,234 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) [2025-03-17 14:49:32,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-03-17 14:49:32,297 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 507 statements into 18 equivalence classes. [2025-03-17 14:49:32,418 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) and asserted 473 of 507 statements. [2025-03-17 14:49:32,418 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2025-03-17 14:49:32,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:32,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-03-17 14:49:32,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 7332 backedges. 4120 proven. 333 refuted. 0 times theorem prover too weak. 2879 trivial. 0 not checked. [2025-03-17 14:49:32,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 7332 backedges. 1553 proven. 850 refuted. 0 times theorem prover too weak. 4929 trivial. 0 not checked. [2025-03-17 14:49:33,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077430964] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:33,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:33,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 20, 21] total 47 [2025-03-17 14:49:33,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816402409] [2025-03-17 14:49:33,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:33,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-03-17 14:49:33,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:33,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-03-17 14:49:33,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1963, Unknown=0, NotChecked=0, Total=2162 [2025-03-17 14:49:33,844 INFO L87 Difference]: Start difference. First operand 1893 states and 2559 transitions. Second operand has 47 states, 47 states have (on average 4.553191489361702) internal successors, (214), 46 states have internal predecessors, (214), 26 states have call successors, (35), 2 states have call predecessors, (35), 11 states have return successors, (40), 18 states have call predecessors, (40), 26 states have call successors, (40) [2025-03-17 14:49:36,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:36,110 INFO L93 Difference]: Finished difference Result 3894 states and 5870 transitions. [2025-03-17 14:49:36,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2025-03-17 14:49:36,111 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.553191489361702) internal successors, (214), 46 states have internal predecessors, (214), 26 states have call successors, (35), 2 states have call predecessors, (35), 11 states have return successors, (40), 18 states have call predecessors, (40), 26 states have call successors, (40) Word has length 507 [2025-03-17 14:49:36,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:36,118 INFO L225 Difference]: With dead ends: 3894 [2025-03-17 14:49:36,118 INFO L226 Difference]: Without dead ends: 2234 [2025-03-17 14:49:36,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 995 SyntacticMatches, 13 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3272 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1549, Invalid=10883, Unknown=0, NotChecked=0, Total=12432 [2025-03-17 14:49:36,124 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 346 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 3336 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 3336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:36,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 855 Invalid, 3602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 3336 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-17 14:49:36,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2234 states. [2025-03-17 14:49:36,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2234 to 1956. [2025-03-17 14:49:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1956 states, 1580 states have (on average 1.1006329113924052) internal successors, (1739), 1529 states have internal predecessors, (1739), 229 states have call successors, (229), 92 states have call predecessors, (229), 143 states have return successors, (626), 334 states have call predecessors, (626), 226 states have call successors, (626) [2025-03-17 14:49:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1956 states to 1956 states and 2594 transitions. [2025-03-17 14:49:36,302 INFO L78 Accepts]: Start accepts. Automaton has 1956 states and 2594 transitions. Word has length 507 [2025-03-17 14:49:36,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:36,303 INFO L471 AbstractCegarLoop]: Abstraction has 1956 states and 2594 transitions. [2025-03-17 14:49:36,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.553191489361702) internal successors, (214), 46 states have internal predecessors, (214), 26 states have call successors, (35), 2 states have call predecessors, (35), 11 states have return successors, (40), 18 states have call predecessors, (40), 26 states have call successors, (40) [2025-03-17 14:49:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1956 states and 2594 transitions. [2025-03-17 14:49:36,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2025-03-17 14:49:36,305 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:36,305 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1] [2025-03-17 14:49:36,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-03-17 14:49:36,505 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,SelfDestructingSolverStorable46 [2025-03-17 14:49:36,506 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:36,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:36,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1520702422, now seen corresponding path program 5 times [2025-03-17 14:49:36,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:36,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312756614] [2025-03-17 14:49:36,506 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:36,515 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 427 statements into 47 equivalence classes. [2025-03-17 14:49:36,591 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 427 of 427 statements. [2025-03-17 14:49:36,591 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:49:36,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 9729 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-03-17 14:49:41,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:41,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312756614] [2025-03-17 14:49:41,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312756614] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:41,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34908953] [2025-03-17 14:49:41,291 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-17 14:49:41,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:41,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:41,297 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) [2025-03-17 14:49:41,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-03-17 14:49:41,431 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 427 statements into 47 equivalence classes. [2025-03-17 14:49:41,613 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) and asserted 427 of 427 statements. [2025-03-17 14:49:41,613 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2025-03-17 14:49:41,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:41,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-03-17 14:49:41,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9729 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-03-17 14:49:42,015 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 9729 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-03-17 14:49:47,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34908953] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:47,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:47,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2025-03-17 14:49:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654179043] [2025-03-17 14:49:47,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:47,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2025-03-17 14:49:47,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:47,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2025-03-17 14:49:47,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-03-17 14:49:47,879 INFO L87 Difference]: Start difference. First operand 1956 states and 2594 transitions. Second operand has 190 states, 189 states have (on average 2.0317460317460316) internal successors, (384), 190 states have internal predecessors, (384), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-17 14:49:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:50,691 INFO L93 Difference]: Finished difference Result 8169 states and 12200 transitions. [2025-03-17 14:49:50,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2025-03-17 14:49:50,699 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.0317460317460316) internal successors, (384), 190 states have internal predecessors, (384), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 427 [2025-03-17 14:49:50,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:50,759 INFO L225 Difference]: With dead ends: 8169 [2025-03-17 14:49:50,759 INFO L226 Difference]: Without dead ends: 8168 [2025-03-17 14:49:50,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 947 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10765 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2025-03-17 14:49:50,771 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:50,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 394 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 14:49:50,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8168 states. [2025-03-17 14:49:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8168 to 2196. [2025-03-17 14:49:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1772 states have (on average 1.1168171557562077) internal successors, (1979), 1721 states have internal predecessors, (1979), 277 states have call successors, (277), 92 states have call predecessors, (277), 143 states have return successors, (674), 382 states have call predecessors, (674), 274 states have call successors, (674) [2025-03-17 14:49:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2930 transitions. [2025-03-17 14:49:51,349 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2930 transitions. Word has length 427 [2025-03-17 14:49:51,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:51,352 INFO L471 AbstractCegarLoop]: Abstraction has 2196 states and 2930 transitions. [2025-03-17 14:49:51,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.0317460317460316) internal successors, (384), 190 states have internal predecessors, (384), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-17 14:49:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2930 transitions. [2025-03-17 14:49:51,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2025-03-17 14:49:51,378 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:51,378 INFO L218 NwaCegarLoop]: trace histogram [61, 60, 44, 25, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 19, 17, 16, 16, 15, 15, 15, 15, 5, 5, 5, 5, 4, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:51,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:51,583 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,SelfDestructingSolverStorable47 [2025-03-17 14:49:51,584 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:51,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash -962126017, now seen corresponding path program 8 times [2025-03-17 14:49:51,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:51,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277709966] [2025-03-17 14:49:51,587 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:51,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:51,608 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 613 statements into 2 equivalence classes. [2025-03-17 14:49:51,685 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 613 of 613 statements. [2025-03-17 14:49:51,685 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:51,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 10965 backedges. 1375 proven. 494 refuted. 0 times theorem prover too weak. 9096 trivial. 0 not checked. [2025-03-17 14:49:52,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:52,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277709966] [2025-03-17 14:49:52,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277709966] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:52,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658790700] [2025-03-17 14:49:52,359 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 14:49:52,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:52,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:52,362 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) [2025-03-17 14:49:52,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-03-17 14:49:52,450 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 613 statements into 2 equivalence classes. [2025-03-17 14:49:52,574 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 613 of 613 statements. [2025-03-17 14:49:52,574 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 14:49:52,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:52,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 14:49:52,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 10965 backedges. 5640 proven. 33 refuted. 0 times theorem prover too weak. 5292 trivial. 0 not checked. [2025-03-17 14:49:52,795 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:53,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10965 backedges. 1375 proven. 494 refuted. 0 times theorem prover too weak. 9096 trivial. 0 not checked. [2025-03-17 14:49:53,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658790700] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:53,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:53,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 26 [2025-03-17 14:49:53,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588737455] [2025-03-17 14:49:53,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:53,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-03-17 14:49:53,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:53,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-03-17 14:49:53,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2025-03-17 14:49:53,541 INFO L87 Difference]: Start difference. First operand 2196 states and 2930 transitions. Second operand has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 17 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (26), 10 states have call predecessors, (26), 17 states have call successors, (26) [2025-03-17 14:49:54,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:54,146 INFO L93 Difference]: Finished difference Result 3831 states and 5384 transitions. [2025-03-17 14:49:54,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-17 14:49:54,146 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 17 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (26), 10 states have call predecessors, (26), 17 states have call successors, (26) Word has length 613 [2025-03-17 14:49:54,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:54,159 INFO L225 Difference]: With dead ends: 3831 [2025-03-17 14:49:54,159 INFO L226 Difference]: Without dead ends: 2292 [2025-03-17 14:49:54,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1253 GetRequests, 1209 SyntacticMatches, 13 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=166, Invalid=890, Unknown=0, NotChecked=0, Total=1056 [2025-03-17 14:49:54,169 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 112 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:54,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 350 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 14:49:54,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2292 states. [2025-03-17 14:49:54,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2292 to 2011. [2025-03-17 14:49:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2011 states, 1621 states have (on average 1.1190623072177668) internal successors, (1814), 1576 states have internal predecessors, (1814), 255 states have call successors, (255), 82 states have call predecessors, (255), 131 states have return successors, (656), 352 states have call predecessors, (656), 251 states have call successors, (656) [2025-03-17 14:49:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2011 states to 2011 states and 2725 transitions. [2025-03-17 14:49:54,324 INFO L78 Accepts]: Start accepts. Automaton has 2011 states and 2725 transitions. Word has length 613 [2025-03-17 14:49:54,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:54,325 INFO L471 AbstractCegarLoop]: Abstraction has 2011 states and 2725 transitions. [2025-03-17 14:49:54,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.0) internal successors, (130), 26 states have internal predecessors, (130), 17 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (26), 10 states have call predecessors, (26), 17 states have call successors, (26) [2025-03-17 14:49:54,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2011 states and 2725 transitions. [2025-03-17 14:49:54,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2025-03-17 14:49:54,330 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:54,330 INFO L218 NwaCegarLoop]: trace histogram [59, 58, 43, 24, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 19, 16, 15, 15, 14, 14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:54,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2025-03-17 14:49:54,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:54,536 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:54,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1256984898, now seen corresponding path program 7 times [2025-03-17 14:49:54,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:54,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111057485] [2025-03-17 14:49:54,540 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:49:54,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:54,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 597 statements into 1 equivalence classes. [2025-03-17 14:49:54,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 597 of 597 statements. [2025-03-17 14:49:54,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:54,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 10362 backedges. 1199 proven. 654 refuted. 0 times theorem prover too weak. 8509 trivial. 0 not checked. [2025-03-17 14:49:55,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:55,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111057485] [2025-03-17 14:49:55,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111057485] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:55,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739238482] [2025-03-17 14:49:55,149 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-03-17 14:49:55,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:55,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:55,151 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) [2025-03-17 14:49:55,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-03-17 14:49:55,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 597 statements into 1 equivalence classes. [2025-03-17 14:49:55,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 597 of 597 statements. [2025-03-17 14:49:55,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 14:49:55,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:55,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-17 14:49:55,335 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 10362 backedges. 2809 proven. 521 refuted. 0 times theorem prover too weak. 7032 trivial. 0 not checked. [2025-03-17 14:49:55,569 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 10362 backedges. 1199 proven. 656 refuted. 0 times theorem prover too weak. 8507 trivial. 0 not checked. [2025-03-17 14:49:56,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739238482] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:56,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:56,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 22] total 31 [2025-03-17 14:49:56,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149100940] [2025-03-17 14:49:56,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:56,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2025-03-17 14:49:56,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:56,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2025-03-17 14:49:56,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=826, Unknown=0, NotChecked=0, Total=930 [2025-03-17 14:49:56,255 INFO L87 Difference]: Start difference. First operand 2011 states and 2725 transitions. Second operand has 31 states, 31 states have (on average 4.451612903225806) internal successors, (138), 29 states have internal predecessors, (138), 18 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 14 states have call predecessors, (23), 16 states have call successors, (23) [2025-03-17 14:49:57,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:57,434 INFO L93 Difference]: Finished difference Result 3870 states and 5515 transitions. [2025-03-17 14:49:57,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-03-17 14:49:57,434 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.451612903225806) internal successors, (138), 29 states have internal predecessors, (138), 18 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 14 states have call predecessors, (23), 16 states have call successors, (23) Word has length 597 [2025-03-17 14:49:57,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 14:49:57,445 INFO L225 Difference]: With dead ends: 3870 [2025-03-17 14:49:57,445 INFO L226 Difference]: Without dead ends: 2546 [2025-03-17 14:49:57,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1258 GetRequests, 1174 SyntacticMatches, 17 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=610, Invalid=4082, Unknown=0, NotChecked=0, Total=4692 [2025-03-17 14:49:57,451 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 183 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-17 14:49:57,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 482 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-17 14:49:57,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2025-03-17 14:49:57,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2301. [2025-03-17 14:49:57,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2301 states, 1854 states have (on average 1.122437971952535) internal successors, (2081), 1800 states have internal predecessors, (2081), 288 states have call successors, (288), 92 states have call predecessors, (288), 155 states have return successors, (847), 408 states have call predecessors, (847), 283 states have call successors, (847) [2025-03-17 14:49:57,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2301 states to 2301 states and 3216 transitions. [2025-03-17 14:49:57,631 INFO L78 Accepts]: Start accepts. Automaton has 2301 states and 3216 transitions. Word has length 597 [2025-03-17 14:49:57,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 14:49:57,632 INFO L471 AbstractCegarLoop]: Abstraction has 2301 states and 3216 transitions. [2025-03-17 14:49:57,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.451612903225806) internal successors, (138), 29 states have internal predecessors, (138), 18 states have call successors, (25), 4 states have call predecessors, (25), 5 states have return successors, (23), 14 states have call predecessors, (23), 16 states have call successors, (23) [2025-03-17 14:49:57,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2301 states and 3216 transitions. [2025-03-17 14:49:57,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2025-03-17 14:49:57,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 14:49:57,637 INFO L218 NwaCegarLoop]: trace histogram [57, 56, 41, 23, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 15, 15, 15, 15, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 14:49:57,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-03-17 14:49:57,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-03-17 14:49:57,839 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2025-03-17 14:49:57,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 14:49:57,840 INFO L85 PathProgramCache]: Analyzing trace with hash 405561474, now seen corresponding path program 6 times [2025-03-17 14:49:57,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 14:49:57,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015567402] [2025-03-17 14:49:57,840 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:57,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 14:49:57,854 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 577 statements into 18 equivalence classes. [2025-03-17 14:49:57,858 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 43 of 577 statements. [2025-03-17 14:49:57,858 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-17 14:49:57,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 9613 backedges. 280 proven. 218 refuted. 0 times theorem prover too weak. 9115 trivial. 0 not checked. [2025-03-17 14:49:57,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 14:49:57,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015567402] [2025-03-17 14:49:57,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015567402] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 14:49:57,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375854858] [2025-03-17 14:49:57,894 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-17 14:49:57,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 14:49:57,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 14:49:57,896 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) [2025-03-17 14:49:57,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-03-17 14:49:57,976 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 577 statements into 18 equivalence classes. [2025-03-17 14:49:57,985 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 43 of 577 statements. [2025-03-17 14:49:57,985 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-03-17 14:49:57,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 14:49:57,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 14:49:57,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 14:49:58,085 INFO L134 CoverageAnalysis]: Checked inductivity of 9613 backedges. 280 proven. 17 refuted. 0 times theorem prover too weak. 9316 trivial. 0 not checked. [2025-03-17 14:49:58,086 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 14:49:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 9613 backedges. 280 proven. 17 refuted. 0 times theorem prover too weak. 9316 trivial. 0 not checked. [2025-03-17 14:49:58,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375854858] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 14:49:58,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 14:49:58,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2025-03-17 14:49:58,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557879287] [2025-03-17 14:49:58,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 14:49:58,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 14:49:58,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 14:49:58,530 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 14:49:58,530 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2025-03-17 14:49:58,530 INFO L87 Difference]: Start difference. First operand 2301 states and 3216 transitions. Second operand has 13 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 8 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-03-17 14:49:58,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 14:49:58,863 INFO L93 Difference]: Finished difference Result 2558 states and 3626 transitions. [2025-03-17 14:49:58,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 14:49:58,864 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 8 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 577 [2025-03-17 14:49:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.