./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/LogRecursive.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/LogRecursive.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 e724a514255a950b17f8b31ed081620ead5e2540931c6bb88a6923d310e5f391 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 10:32:55,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 10:32:55,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 10:32:55,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 10:32:55,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 10:32:55,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 10:32:55,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 10:32:55,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 10:32:55,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 10:32:55,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 10:32:55,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 10:32:55,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 10:32:55,738 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 10:32:55,739 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:32:55,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 10:32:55,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 10:32:55,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 10:32:55,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 10:32:55,741 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 10:32:55,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 10:32:55,741 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 -> e724a514255a950b17f8b31ed081620ead5e2540931c6bb88a6923d310e5f391 [2025-03-04 10:32:55,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 10:32:55,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 10:32:55,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 10:32:55,951 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 10:32:55,951 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 10:32:55,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/LogRecursive.c [2025-03-04 10:32:57,047 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa44f5ac0/ad37a0c77dcb4749b784f4749e203141/FLAG266d619b1 [2025-03-04 10:32:57,224 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 10:32:57,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/LogRecursive.c [2025-03-04 10:32:57,242 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa44f5ac0/ad37a0c77dcb4749b784f4749e203141/FLAG266d619b1 [2025-03-04 10:32:57,610 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa44f5ac0/ad37a0c77dcb4749b784f4749e203141 [2025-03-04 10:32:57,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 10:32:57,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 10:32:57,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 10:32:57,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 10:32:57,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 10:32:57,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13dbc360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57, skipping insertion in model container [2025-03-04 10:32:57,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 10:32:57,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:32:57,717 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 10:32:57,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 10:32:57,731 INFO L204 MainTranslator]: Completed translation [2025-03-04 10:32:57,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57 WrapperNode [2025-03-04 10:32:57,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 10:32:57,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 10:32:57,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 10:32:57,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 10:32:57,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,749 INFO L138 Inliner]: procedures = 6, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2025-03-04 10:32:57,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 10:32:57,751 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 10:32:57,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 10:32:57,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 10:32:57,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,759 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-04 10:32:57,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,760 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 10:32:57,762 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 10:32:57,762 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 10:32:57,762 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 10:32:57,763 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (1/1) ... [2025-03-04 10:32:57,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 10:32:57,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:32:57,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 10:32:57,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 10:32:57,802 INFO L130 BoogieDeclarations]: Found specification of procedure _log [2025-03-04 10:32:57,802 INFO L138 BoogieDeclarations]: Found implementation of procedure _log [2025-03-04 10:32:57,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 10:32:57,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 10:32:57,839 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 10:32:57,841 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 10:32:57,896 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L41: havoc #t~ret5; [2025-03-04 10:32:57,922 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-03-04 10:32:57,922 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 10:32:57,929 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 10:32:57,929 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 10:32:57,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:32:57 BoogieIcfgContainer [2025-03-04 10:32:57,929 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 10:32:57,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 10:32:57,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 10:32:57,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 10:32:57,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 10:32:57" (1/3) ... [2025-03-04 10:32:57,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76304974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:32:57, skipping insertion in model container [2025-03-04 10:32:57,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 10:32:57" (2/3) ... [2025-03-04 10:32:57,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76304974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 10:32:57, skipping insertion in model container [2025-03-04 10:32:57,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 10:32:57" (3/3) ... [2025-03-04 10:32:57,937 INFO L128 eAbstractionObserver]: Analyzing ICFG LogRecursive.c [2025-03-04 10:32:57,946 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 10:32:57,947 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG LogRecursive.c that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-04 10:32:57,981 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 10:32:57,990 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;@5cb45d07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 10:32:57,991 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-04 10:32:57,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 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) [2025-03-04 10:32:57,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 10:32:57,999 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:32:57,999 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:32:58,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting _logErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:32:58,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:32:58,004 INFO L85 PathProgramCache]: Analyzing trace with hash -271065050, now seen corresponding path program 1 times [2025-03-04 10:32:58,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:32:58,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888364814] [2025-03-04 10:32:58,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:58,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:32:58,054 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 10:32:58,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 10:32:58,071 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:58,071 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:32:58,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841393719] [2025-03-04 10:32:58,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:58,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:32:58,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:32:58,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:32:58,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 10:32:58,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 10:32:58,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 10:32:58,118 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:58,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:32:58,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-04 10:32:58,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:32:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:32:58,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:32:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:32:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888364814] [2025-03-04 10:32:58,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:32:58,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841393719] [2025-03-04 10:32:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841393719] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:32:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:32:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 10:32:58,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469138266] [2025-03-04 10:32:58,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:32:58,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:32:58,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:32:58,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:32:58,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:32:58,278 INFO L87 Difference]: Start difference. First operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 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) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2025-03-04 10:32:58,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:32:58,381 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2025-03-04 10:32:58,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:32:58,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 8 [2025-03-04 10:32:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:32:58,388 INFO L225 Difference]: With dead ends: 27 [2025-03-04 10:32:58,388 INFO L226 Difference]: Without dead ends: 21 [2025-03-04 10:32:58,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:32:58,392 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 30 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:32:58,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 48 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:32:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-03-04 10:32:58,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2025-03-04 10:32:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 10:32:58,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-03-04 10:32:58,416 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 8 [2025-03-04 10:32:58,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:32:58,417 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-03-04 10:32:58,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2025-03-04 10:32:58,417 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-03-04 10:32:58,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-04 10:32:58,417 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:32:58,418 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:32:58,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 10:32:58,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-04 10:32:58,618 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:32:58,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:32:58,619 INFO L85 PathProgramCache]: Analyzing trace with hash 186918020, now seen corresponding path program 1 times [2025-03-04 10:32:58,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:32:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340495982] [2025-03-04 10:32:58,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:58,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:32:58,623 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 10:32:58,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 10:32:58,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:58,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 10:32:58,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789090164] [2025-03-04 10:32:58,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:58,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:32:58,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:32:58,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:32:58,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 10:32:58,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 10:32:58,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 10:32:58,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:58,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:32:58,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 10:32:58,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:32:58,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 10:32:58,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 10:32:58,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:32:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340495982] [2025-03-04 10:32:58,703 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 10:32:58,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789090164] [2025-03-04 10:32:58,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789090164] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:32:58,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:32:58,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 10:32:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092210810] [2025-03-04 10:32:58,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:32:58,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 10:32:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:32:58,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 10:32:58,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 10:32:58,704 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2025-03-04 10:32:58,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:32:58,743 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2025-03-04 10:32:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 10:32:58,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 9 [2025-03-04 10:32:58,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:32:58,744 INFO L225 Difference]: With dead ends: 21 [2025-03-04 10:32:58,744 INFO L226 Difference]: Without dead ends: 20 [2025-03-04 10:32:58,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2025-03-04 10:32:58,744 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 19 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:32:58,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 38 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:32:58,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-03-04 10:32:58,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2025-03-04 10:32:58,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 10:32:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2025-03-04 10:32:58,747 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2025-03-04 10:32:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:32:58,747 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2025-03-04 10:32:58,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2025-03-04 10:32:58,747 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2025-03-04 10:32:58,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-03-04 10:32:58,747 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:32:58,748 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:32:58,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 10:32:58,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-04 10:32:58,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:32:58,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:32:58,952 INFO L85 PathProgramCache]: Analyzing trace with hash 481827125, now seen corresponding path program 1 times [2025-03-04 10:32:58,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:32:58,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123067124] [2025-03-04 10:32:58,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:58,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:32:58,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 10:32:58,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 10:32:58,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:58,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:32:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 10:32:59,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:32:59,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123067124] [2025-03-04 10:32:59,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123067124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:32:59,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:32:59,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 10:32:59,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103798775] [2025-03-04 10:32:59,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:32:59,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 10:32:59,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:32:59,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 10:32:59,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 10:32:59,084 INFO L87 Difference]: Start difference. First operand 18 states and 19 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 10:32:59,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:32:59,106 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2025-03-04 10:32:59,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 10:32:59,107 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, (2), 1 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 17 [2025-03-04 10:32:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:32:59,107 INFO L225 Difference]: With dead ends: 25 [2025-03-04 10:32:59,107 INFO L226 Difference]: Without dead ends: 23 [2025-03-04 10:32:59,107 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 [2025-03-04 10:32:59,108 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:32:59,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:32:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-03-04 10:32:59,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2025-03-04 10:32:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:32:59,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2025-03-04 10:32:59,112 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 17 [2025-03-04 10:32:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:32:59,112 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2025-03-04 10:32:59,113 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 10:32:59,113 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2025-03-04 10:32:59,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-03-04 10:32:59,113 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:32:59,113 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:32:59,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 10:32:59,113 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:32:59,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:32:59,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2113214519, now seen corresponding path program 1 times [2025-03-04 10:32:59,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:32:59,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985584949] [2025-03-04 10:32:59,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:59,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:32:59,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-03-04 10:32:59,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-03-04 10:32:59,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:59,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:32:59,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-04 10:32:59,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:32:59,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985584949] [2025-03-04 10:32:59,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985584949] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 10:32:59,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 10:32:59,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 10:32:59,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527292289] [2025-03-04 10:32:59,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 10:32:59,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 10:32:59,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:32:59,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 10:32:59,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:32:59,184 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 10:32:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:32:59,190 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2025-03-04 10:32:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 10:32:59,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 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 27 [2025-03-04 10:32:59,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:32:59,193 INFO L225 Difference]: With dead ends: 23 [2025-03-04 10:32:59,193 INFO L226 Difference]: Without dead ends: 22 [2025-03-04 10:32:59,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 10:32:59,194 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:32:59,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:32:59,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-03-04 10:32:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-03-04 10:32:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-04 10:32:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2025-03-04 10:32:59,201 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 27 [2025-03-04 10:32:59,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:32:59,201 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2025-03-04 10:32:59,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 10:32:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2025-03-04 10:32:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-03-04 10:32:59,201 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:32:59,201 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:32:59,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 10:32:59,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting _logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:32:59,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:32:59,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1085140677, now seen corresponding path program 1 times [2025-03-04 10:32:59,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:32:59,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682320724] [2025-03-04 10:32:59,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:59,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:32:59,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:32:59,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:32:59,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:59,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:32:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-04 10:32:59,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:32:59,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682320724] [2025-03-04 10:32:59,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682320724] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:32:59,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102735476] [2025-03-04 10:32:59,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 10:32:59,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:32:59,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:32:59,310 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:32:59,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 10:32:59,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-04 10:32:59,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-04 10:32:59,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 10:32:59,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:32:59,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 10:32:59,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:32:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-04 10:32:59,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:32:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-04 10:32:59,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102735476] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:32:59,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:32:59,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-04 10:32:59,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871302870] [2025-03-04 10:32:59,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:32:59,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 10:32:59,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:32:59,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 10:32:59,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:32:59,478 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:32:59,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:32:59,516 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2025-03-04 10:32:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 10:32:59,516 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 28 [2025-03-04 10:32:59,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:32:59,516 INFO L225 Difference]: With dead ends: 38 [2025-03-04 10:32:59,517 INFO L226 Difference]: Without dead ends: 37 [2025-03-04 10:32:59,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 10:32:59,517 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:32:59,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:32:59,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-04 10:32:59,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-04 10:32:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 30 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:32:59,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2025-03-04 10:32:59,524 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 28 [2025-03-04 10:32:59,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:32:59,524 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2025-03-04 10:32:59,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2025-03-04 10:32:59,524 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2025-03-04 10:32:59,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-04 10:32:59,525 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:32:59,525 INFO L218 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:32:59,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 10:32:59,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:32:59,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting _logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:32:59,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:32:59,726 INFO L85 PathProgramCache]: Analyzing trace with hash 954672025, now seen corresponding path program 2 times [2025-03-04 10:32:59,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:32:59,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037109211] [2025-03-04 10:32:59,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:32:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:32:59,735 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-03-04 10:32:59,756 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 10:32:59,756 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:32:59,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-03-04 10:33:00,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:33:00,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037109211] [2025-03-04 10:33:00,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037109211] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:33:00,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068115609] [2025-03-04 10:33:00,058 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 10:33:00,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:00,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:33:00,060 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:33:00,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 10:33:00,090 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 63 statements into 2 equivalence classes. [2025-03-04 10:33:00,113 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 63 of 63 statements. [2025-03-04 10:33:00,114 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 10:33:00,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:00,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-04 10:33:00,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:33:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-03-04 10:33:00,172 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:33:00,755 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2025-03-04 10:33:00,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068115609] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:33:00,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:33:00,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2025-03-04 10:33:00,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264404108] [2025-03-04 10:33:00,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:33:00,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-03-04 10:33:00,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:33:00,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-03-04 10:33:00,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-04 10:33:00,757 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 22 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 22 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-04 10:33:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:33:00,818 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2025-03-04 10:33:00,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 10:33:00,818 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 22 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 63 [2025-03-04 10:33:00,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:33:00,820 INFO L225 Difference]: With dead ends: 68 [2025-03-04 10:33:00,820 INFO L226 Difference]: Without dead ends: 67 [2025-03-04 10:33:00,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2025-03-04 10:33:00,822 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 10:33:00,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 10:33:00,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2025-03-04 10:33:00,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2025-03-04 10:33:00,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2025-03-04 10:33:00,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 68 transitions. [2025-03-04 10:33:00,835 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 68 transitions. Word has length 63 [2025-03-04 10:33:00,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:33:00,835 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 68 transitions. [2025-03-04 10:33:00,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 22 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2025-03-04 10:33:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 68 transitions. [2025-03-04 10:33:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-04 10:33:00,840 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:33:00,840 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:33:00,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 10:33:01,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:01,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting _logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:33:01,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:33:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1165605553, now seen corresponding path program 3 times [2025-03-04 10:33:01,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:33:01,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219683786] [2025-03-04 10:33:01,042 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:33:01,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:33:01,054 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 118 statements into 12 equivalence classes. [2025-03-04 10:33:01,158 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 113 of 118 statements. [2025-03-04 10:33:01,159 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 10:33:01,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-03-04 10:33:01,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:33:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219683786] [2025-03-04 10:33:01,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219683786] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:33:01,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851846824] [2025-03-04 10:33:01,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 10:33:01,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:01,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:33:01,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:33:01,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 10:33:01,825 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 118 statements into 12 equivalence classes. [2025-03-04 10:33:01,878 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 113 of 118 statements. [2025-03-04 10:33:01,878 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-03-04 10:33:01,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:01,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-04 10:33:01,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:33:01,966 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-03-04 10:33:01,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:33:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2025-03-04 10:33:05,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851846824] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:33:05,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:33:05,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2025-03-04 10:33:05,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941401028] [2025-03-04 10:33:05,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:33:05,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2025-03-04 10:33:05,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:33:05,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2025-03-04 10:33:05,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-04 10:33:05,771 INFO L87 Difference]: Start difference. First operand 67 states and 68 transitions. Second operand has 46 states, 45 states have (on average 2.2) internal successors, (99), 46 states have internal predecessors, (99), 1 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (22), 22 states have call predecessors, (22), 1 states have call successors, (22) [2025-03-04 10:33:05,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:33:05,901 INFO L93 Difference]: Finished difference Result 128 states and 140 transitions. [2025-03-04 10:33:05,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-03-04 10:33:05,902 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.2) internal successors, (99), 46 states have internal predecessors, (99), 1 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (22), 22 states have call predecessors, (22), 1 states have call successors, (22) Word has length 118 [2025-03-04 10:33:05,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:33:05,904 INFO L225 Difference]: With dead ends: 128 [2025-03-04 10:33:05,904 INFO L226 Difference]: Without dead ends: 127 [2025-03-04 10:33:05,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2025-03-04 10:33:05,907 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 10:33:05,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 10:33:05,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2025-03-04 10:33:05,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2025-03-04 10:33:05,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 101 states have (on average 1.0198019801980198) internal successors, (103), 102 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2025-03-04 10:33:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 128 transitions. [2025-03-04 10:33:05,920 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 128 transitions. Word has length 118 [2025-03-04 10:33:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:33:05,923 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 128 transitions. [2025-03-04 10:33:05,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.2) internal successors, (99), 46 states have internal predecessors, (99), 1 states have call successors, (2), 1 states have call predecessors, (2), 22 states have return successors, (22), 22 states have call predecessors, (22), 1 states have call successors, (22) [2025-03-04 10:33:05,923 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 128 transitions. [2025-03-04 10:33:05,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2025-03-04 10:33:05,928 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:33:05,928 INFO L218 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:33:05,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 10:33:06,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:06,129 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting _logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:33:06,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:33:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1670231375, now seen corresponding path program 4 times [2025-03-04 10:33:06,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:33:06,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266078331] [2025-03-04 10:33:06,130 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:33:06,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:33:06,144 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 238 statements into 2 equivalence classes. [2025-03-04 10:33:06,187 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 238 of 238 statements. [2025-03-04 10:33:06,187 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:33:06,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-03-04 10:33:08,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:33:08,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266078331] [2025-03-04 10:33:08,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266078331] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:33:08,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870546290] [2025-03-04 10:33:08,608 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 10:33:08,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:08,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:33:08,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:33:08,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 10:33:08,694 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 238 statements into 2 equivalence classes. [2025-03-04 10:33:09,624 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 238 of 238 statements. [2025-03-04 10:33:09,625 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 10:33:09,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:09,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 47 conjuncts are in the unsatisfiable core [2025-03-04 10:33:09,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 10:33:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-03-04 10:33:09,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 10:33:45,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-03-04 10:33:45,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870546290] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 10:33:45,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 10:33:45,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2025-03-04 10:33:45,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666752097] [2025-03-04 10:33:45,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 10:33:45,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-03-04 10:33:45,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 10:33:45,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-03-04 10:33:45,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-03-04 10:33:45,392 INFO L87 Difference]: Start difference. First operand 127 states and 128 transitions. Second operand has 96 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 96 states have internal predecessors, (200), 1 states have call successors, (2), 1 states have call predecessors, (2), 47 states have return successors, (47), 47 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-04 10:33:45,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 10:33:45,626 INFO L93 Difference]: Finished difference Result 248 states and 272 transitions. [2025-03-04 10:33:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2025-03-04 10:33:45,626 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 96 states have internal predecessors, (200), 1 states have call successors, (2), 1 states have call predecessors, (2), 47 states have return successors, (47), 47 states have call predecessors, (47), 1 states have call successors, (47) Word has length 238 [2025-03-04 10:33:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 10:33:45,628 INFO L225 Difference]: With dead ends: 248 [2025-03-04 10:33:45,628 INFO L226 Difference]: Without dead ends: 247 [2025-03-04 10:33:45,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2823 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2025-03-04 10:33:45,630 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-04 10:33:45,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 180 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-04 10:33:45,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2025-03-04 10:33:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2025-03-04 10:33:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 197 states have (on average 1.0101522842639594) internal successors, (199), 198 states have internal predecessors, (199), 2 states have call successors, (2), 1 states have call predecessors, (2), 47 states have return successors, (47), 47 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-04 10:33:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 248 transitions. [2025-03-04 10:33:45,650 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 248 transitions. Word has length 238 [2025-03-04 10:33:45,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 10:33:45,651 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 248 transitions. [2025-03-04 10:33:45,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 96 states have internal predecessors, (200), 1 states have call successors, (2), 1 states have call predecessors, (2), 47 states have return successors, (47), 47 states have call predecessors, (47), 1 states have call successors, (47) [2025-03-04 10:33:45,651 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 248 transitions. [2025-03-04 10:33:45,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2025-03-04 10:33:45,655 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 10:33:45,655 INFO L218 NwaCegarLoop]: trace histogram [49, 48, 48, 48, 48, 47, 47, 47, 47, 46, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 10:33:45,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-04 10:33:45,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:45,856 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting _logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [_logErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _logErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-03-04 10:33:45,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 10:33:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash -331686247, now seen corresponding path program 5 times [2025-03-04 10:33:45,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 10:33:45,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053949750] [2025-03-04 10:33:45,856 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:33:45,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 10:33:45,881 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 483 statements into 49 equivalence classes. [2025-03-04 10:33:47,411 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) and asserted 483 of 483 statements. [2025-03-04 10:33:47,412 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 49 check-sat command(s) [2025-03-04 10:33:47,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 10:33:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11141 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 5736 trivial. 0 not checked. [2025-03-04 10:33:53,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 10:33:53,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053949750] [2025-03-04 10:33:53,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053949750] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 10:33:53,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487966808] [2025-03-04 10:33:53,119 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 10:33:53,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 10:33:53,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 10:33:53,121 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 10:33:53,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 10:33:53,573 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 483 statements into 49 equivalence classes.