./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_good.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 8cb9b831686b46e5b79223b03ef7d7bcd4e0f85b16b27ca03c629a36fbfde9de --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 17:25:06,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 17:25:06,131 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 17:25:06,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 17:25:06,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 17:25:06,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 17:25:06,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 17:25:06,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 17:25:06,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 17:25:06,163 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 17:25:06,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 17:25:06,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 17:25:06,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 17:25:06,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 17:25:06,165 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 17:25:06,166 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:25:06,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 17:25:06,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 17:25:06,166 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-jdk21/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 -> 8cb9b831686b46e5b79223b03ef7d7bcd4e0f85b16b27ca03c629a36fbfde9de [2025-02-06 17:25:06,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 17:25:06,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 17:25:06,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 17:25:06,399 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 17:25:06,399 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 17:25:06,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_good.i [2025-02-06 17:25:07,505 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/939f49e69/1681a02cadfa4dc58b8a65579cc785ea/FLAGfd100afed [2025-02-06 17:25:07,886 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 17:25:07,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_14_good.i [2025-02-06 17:25:07,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/939f49e69/1681a02cadfa4dc58b8a65579cc785ea/FLAGfd100afed [2025-02-06 17:25:08,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/939f49e69/1681a02cadfa4dc58b8a65579cc785ea [2025-02-06 17:25:08,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 17:25:08,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 17:25:08,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 17:25:08,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 17:25:08,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 17:25:08,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5808d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08, skipping insertion in model container [2025-02-06 17:25:08,076 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 17:25:08,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:25:08,704 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 17:25:08,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:25:08,861 INFO L204 MainTranslator]: Completed translation [2025-02-06 17:25:08,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08 WrapperNode [2025-02-06 17:25:08,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 17:25:08,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 17:25:08,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 17:25:08,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 17:25:08,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,909 INFO L138 Inliner]: procedures = 502, calls = 46, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 125 [2025-02-06 17:25:08,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 17:25:08,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 17:25:08,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 17:25:08,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 17:25:08,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,918 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,937 INFO L175 MemorySlicer]: Split 2 memory accesses to 2 slices as follows [1, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 1]. The 0 writes are split as follows [0, 0]. [2025-02-06 17:25:08,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 17:25:08,949 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 17:25:08,949 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 17:25:08,950 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 17:25:08,950 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (1/1) ... [2025-02-06 17:25:08,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:25:08,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:25:08,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 17:25:08,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 17:25:08,997 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2025-02-06 17:25:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2025-02-06 17:25:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 17:25:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 17:25:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 17:25:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 17:25:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 17:25:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 17:25:08,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 17:25:09,118 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 17:25:09,120 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 17:25:09,288 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-02-06 17:25:09,288 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 17:25:09,294 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 17:25:09,295 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 17:25:09,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:25:09 BoogieIcfgContainer [2025-02-06 17:25:09,296 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 17:25:09,297 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 17:25:09,297 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 17:25:09,300 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 17:25:09,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:25:08" (1/3) ... [2025-02-06 17:25:09,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685ff13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:25:09, skipping insertion in model container [2025-02-06 17:25:09,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:25:08" (2/3) ... [2025-02-06 17:25:09,301 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685ff13e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:25:09, skipping insertion in model container [2025-02-06 17:25:09,301 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:25:09" (3/3) ... [2025-02-06 17:25:09,302 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_14_good.i [2025-02-06 17:25:09,314 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 17:25:09,315 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_14_good.i that has 3 procedures, 65 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-02-06 17:25:09,374 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 17:25:09,389 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;@2579a005, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 17:25:09,390 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2025-02-06 17:25:09,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 42 states have (on average 1.5) internal successors, (63), 56 states have internal predecessors, (63), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2025-02-06 17:25:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 17:25:09,396 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:09,396 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:09,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:09,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:09,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1788494145, now seen corresponding path program 1 times [2025-02-06 17:25:09,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:09,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124877595] [2025-02-06 17:25:09,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:09,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:09,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:25:09,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:25:09,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:09,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:25:09,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:09,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124877595] [2025-02-06 17:25:09,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124877595] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:09,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:09,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 17:25:09,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890317921] [2025-02-06 17:25:09,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:09,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:09,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:09,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:09,624 INFO L87 Difference]: Start difference. First operand has 65 states, 42 states have (on average 1.5) internal successors, (63), 56 states have internal predecessors, (63), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:25:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:09,668 INFO L93 Difference]: Finished difference Result 120 states and 158 transitions. [2025-02-06 17:25:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:09,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-02-06 17:25:09,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:09,673 INFO L225 Difference]: With dead ends: 120 [2025-02-06 17:25:09,673 INFO L226 Difference]: Without dead ends: 54 [2025-02-06 17:25:09,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:09,677 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 71 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:09,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 67 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:09,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-06 17:25:09,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-02-06 17:25:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 47 states have internal predecessors, (48), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2025-02-06 17:25:09,705 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 12 [2025-02-06 17:25:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:09,706 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2025-02-06 17:25:09,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:25:09,706 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2025-02-06 17:25:09,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 17:25:09,707 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:09,707 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:09,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 17:25:09,707 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:09,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:09,708 INFO L85 PathProgramCache]: Analyzing trace with hash -782611135, now seen corresponding path program 1 times [2025-02-06 17:25:09,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:09,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241798926] [2025-02-06 17:25:09,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:09,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:09,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 17:25:09,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 17:25:09,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:09,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:25:09,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:09,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241798926] [2025-02-06 17:25:09,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241798926] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:09,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:09,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:09,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783862099] [2025-02-06 17:25:09,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:09,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:09,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:09,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:09,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:09,776 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:25:09,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:09,793 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2025-02-06 17:25:09,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:09,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2025-02-06 17:25:09,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:09,794 INFO L225 Difference]: With dead ends: 95 [2025-02-06 17:25:09,794 INFO L226 Difference]: Without dead ends: 56 [2025-02-06 17:25:09,794 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 [2025-02-06 17:25:09,795 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 5 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:09,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 114 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:09,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-02-06 17:25:09,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-02-06 17:25:09,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.2820512820512822) internal successors, (50), 48 states have internal predecessors, (50), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2025-02-06 17:25:09,801 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 14 [2025-02-06 17:25:09,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:09,801 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2025-02-06 17:25:09,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:25:09,801 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2025-02-06 17:25:09,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 17:25:09,802 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:09,802 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:09,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 17:25:09,802 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:09,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:09,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1508858617, now seen corresponding path program 1 times [2025-02-06 17:25:09,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:09,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941441386] [2025-02-06 17:25:09,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:09,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:09,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 17:25:09,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 17:25:09,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:09,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:25:09,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:09,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941441386] [2025-02-06 17:25:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941441386] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:09,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:09,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:09,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078811570] [2025-02-06 17:25:09,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:09,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:09,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:09,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:09,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:09,881 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:25:09,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:09,894 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2025-02-06 17:25:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:09,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-06 17:25:09,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:09,895 INFO L225 Difference]: With dead ends: 56 [2025-02-06 17:25:09,895 INFO L226 Difference]: Without dead ends: 55 [2025-02-06 17:25:09,896 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 [2025-02-06 17:25:09,896 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:09,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 108 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:09,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-02-06 17:25:09,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-02-06 17:25:09,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 47 states have internal predecessors, (49), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:09,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2025-02-06 17:25:09,901 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 15 [2025-02-06 17:25:09,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:09,901 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2025-02-06 17:25:09,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:25:09,901 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2025-02-06 17:25:09,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 17:25:09,902 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:09,902 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:09,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 17:25:09,902 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:09,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:09,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1695299504, now seen corresponding path program 1 times [2025-02-06 17:25:09,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:09,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915351095] [2025-02-06 17:25:09,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:09,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:09,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 17:25:09,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 17:25:09,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:09,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 17:25:09,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:09,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915351095] [2025-02-06 17:25:09,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915351095] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:09,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:09,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:09,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104592546] [2025-02-06 17:25:09,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:09,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:09,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:09,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:09,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:09,977 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:25:09,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:09,991 INFO L93 Difference]: Finished difference Result 82 states and 93 transitions. [2025-02-06 17:25:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:09,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2025-02-06 17:25:09,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:09,992 INFO L225 Difference]: With dead ends: 82 [2025-02-06 17:25:09,992 INFO L226 Difference]: Without dead ends: 57 [2025-02-06 17:25:09,992 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 [2025-02-06 17:25:09,993 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 5 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:09,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 110 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2025-02-06 17:25:09,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2025-02-06 17:25:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 48 states have internal predecessors, (51), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2025-02-06 17:25:09,998 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 25 [2025-02-06 17:25:09,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:09,999 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2025-02-06 17:25:09,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:25:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2025-02-06 17:25:09,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 17:25:09,999 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:09,999 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:10,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 17:25:10,000 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:10,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:10,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1014677065, now seen corresponding path program 1 times [2025-02-06 17:25:10,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:10,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101378040] [2025-02-06 17:25:10,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:10,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:10,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 17:25:10,026 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 17:25:10,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:10,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 17:25:10,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:10,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101378040] [2025-02-06 17:25:10,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101378040] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:10,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:10,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:10,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535807958] [2025-02-06 17:25:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:10,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:10,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:10,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:10,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:10,082 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:25:10,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:10,093 INFO L93 Difference]: Finished difference Result 57 states and 67 transitions. [2025-02-06 17:25:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2025-02-06 17:25:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:10,094 INFO L225 Difference]: With dead ends: 57 [2025-02-06 17:25:10,094 INFO L226 Difference]: Without dead ends: 56 [2025-02-06 17:25:10,094 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 [2025-02-06 17:25:10,095 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:10,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 104 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:10,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2025-02-06 17:25:10,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2025-02-06 17:25:10,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 47 states have internal predecessors, (50), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:10,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2025-02-06 17:25:10,099 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 26 [2025-02-06 17:25:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:10,100 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2025-02-06 17:25:10,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-06 17:25:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2025-02-06 17:25:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2025-02-06 17:25:10,100 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:10,101 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:10,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 17:25:10,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:10,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:10,101 INFO L85 PathProgramCache]: Analyzing trace with hash 912174188, now seen corresponding path program 1 times [2025-02-06 17:25:10,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:10,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425432581] [2025-02-06 17:25:10,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:10,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:10,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 17:25:10,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 17:25:10,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:10,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:10,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 17:25:10,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:10,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425432581] [2025-02-06 17:25:10,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425432581] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:10,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:10,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:10,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363518778] [2025-02-06 17:25:10,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:10,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:10,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:10,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:10,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:10,185 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 17:25:10,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:10,196 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2025-02-06 17:25:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:10,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2025-02-06 17:25:10,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:10,197 INFO L225 Difference]: With dead ends: 56 [2025-02-06 17:25:10,198 INFO L226 Difference]: Without dead ends: 55 [2025-02-06 17:25:10,198 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 [2025-02-06 17:25:10,198 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:10,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 108 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2025-02-06 17:25:10,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2025-02-06 17:25:10,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 46 states have internal predecessors, (49), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:10,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2025-02-06 17:25:10,207 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 33 [2025-02-06 17:25:10,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:10,207 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2025-02-06 17:25:10,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 17:25:10,207 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2025-02-06 17:25:10,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2025-02-06 17:25:10,208 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:10,208 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:10,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 17:25:10,208 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:10,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:10,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1787371249, now seen corresponding path program 1 times [2025-02-06 17:25:10,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:10,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008001205] [2025-02-06 17:25:10,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:10,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:10,241 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 17:25:10,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 17:25:10,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:10,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:10,289 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 17:25:10,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:10,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008001205] [2025-02-06 17:25:10,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008001205] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:10,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:10,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:10,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677502315] [2025-02-06 17:25:10,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:10,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:10,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:10,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:10,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:10,292 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 17:25:10,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:10,306 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2025-02-06 17:25:10,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:10,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2025-02-06 17:25:10,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:10,307 INFO L225 Difference]: With dead ends: 55 [2025-02-06 17:25:10,309 INFO L226 Difference]: Without dead ends: 54 [2025-02-06 17:25:10,310 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 [2025-02-06 17:25:10,310 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 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 [2025-02-06 17:25:10,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:10,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2025-02-06 17:25:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2025-02-06 17:25:10,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 45 states have internal predecessors, (48), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:10,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2025-02-06 17:25:10,319 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 34 [2025-02-06 17:25:10,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:10,319 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2025-02-06 17:25:10,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-06 17:25:10,319 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2025-02-06 17:25:10,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-02-06 17:25:10,320 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:10,320 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:10,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 17:25:10,322 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:10,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1599607002, now seen corresponding path program 1 times [2025-02-06 17:25:10,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:10,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679150435] [2025-02-06 17:25:10,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:10,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 17:25:10,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 17:25:10,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:10,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 17:25:10,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:10,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679150435] [2025-02-06 17:25:10,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679150435] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:10,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:10,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:10,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743749084] [2025-02-06 17:25:10,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:10,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:10,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:10,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:10,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:10,408 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 17:25:10,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:10,422 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2025-02-06 17:25:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:10,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 43 [2025-02-06 17:25:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:10,424 INFO L225 Difference]: With dead ends: 54 [2025-02-06 17:25:10,425 INFO L226 Difference]: Without dead ends: 53 [2025-02-06 17:25:10,425 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 [2025-02-06 17:25:10,426 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 1 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:10,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 107 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2025-02-06 17:25:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2025-02-06 17:25:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.119047619047619) internal successors, (47), 44 states have internal predecessors, (47), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-06 17:25:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2025-02-06 17:25:10,435 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 43 [2025-02-06 17:25:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:10,435 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2025-02-06 17:25:10,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 17:25:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2025-02-06 17:25:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-02-06 17:25:10,438 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:25:10,438 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:10,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 17:25:10,438 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2025-02-06 17:25:10,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:25:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1951790474, now seen corresponding path program 1 times [2025-02-06 17:25:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:25:10,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491942559] [2025-02-06 17:25:10,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:25:10,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:25:10,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 17:25:10,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 17:25:10,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:25:10,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:25:10,514 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-06 17:25:10,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:25:10,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491942559] [2025-02-06 17:25:10,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491942559] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:25:10,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:25:10,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:25:10,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783082609] [2025-02-06 17:25:10,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:25:10,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:25:10,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:25:10,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:25:10,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:25:10,517 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 17:25:10,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:25:10,529 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2025-02-06 17:25:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:25:10,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 44 [2025-02-06 17:25:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:25:10,530 INFO L225 Difference]: With dead ends: 53 [2025-02-06 17:25:10,530 INFO L226 Difference]: Without dead ends: 0 [2025-02-06 17:25:10,530 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 [2025-02-06 17:25:10,530 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:25:10,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:25:10,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-06 17:25:10,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-06 17:25:10,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 17:25:10,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-06 17:25:10,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2025-02-06 17:25:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:25:10,531 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-06 17:25:10,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2025-02-06 17:25:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-06 17:25:10,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-06 17:25:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2025-02-06 17:25:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2025-02-06 17:25:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2025-02-06 17:25:10,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2025-02-06 17:25:10,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2025-02-06 17:25:10,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2025-02-06 17:25:10,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2025-02-06 17:25:10,537 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2025-02-06 17:25:10,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 17:25:10,539 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:25:10,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-06 17:25:10,596 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 17:25:10,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 05:25:10 BoogieIcfgContainer [2025-02-06 17:25:10,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 17:25:10,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 17:25:10,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 17:25:10,601 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 17:25:10,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:25:09" (3/4) ... [2025-02-06 17:25:10,607 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-06 17:25:10,611 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure printLine [2025-02-06 17:25:10,612 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure printIntLine [2025-02-06 17:25:10,616 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-06 17:25:10,617 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-06 17:25:10,617 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-06 17:25:10,617 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 17:25:10,617 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-06 17:25:10,674 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 17:25:10,675 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 17:25:10,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 17:25:10,676 INFO L158 Benchmark]: Toolchain (without parser) took 2605.37ms. Allocated memory is still 167.8MB. Free memory was 129.2MB in the beginning and 60.8MB in the end (delta: 68.5MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2025-02-06 17:25:10,676 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 209.7MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:25:10,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 791.39ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 67.7MB in the end (delta: 61.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-06 17:25:10,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.94ms. Allocated memory is still 167.8MB. Free memory was 67.7MB in the beginning and 64.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:25:10,677 INFO L158 Benchmark]: Boogie Preprocessor took 38.64ms. Allocated memory is still 167.8MB. Free memory was 64.9MB in the beginning and 63.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:25:10,678 INFO L158 Benchmark]: IcfgBuilder took 346.26ms. Allocated memory is still 167.8MB. Free memory was 63.0MB in the beginning and 46.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 17:25:10,678 INFO L158 Benchmark]: TraceAbstraction took 1303.38ms. Allocated memory is still 167.8MB. Free memory was 46.1MB in the beginning and 66.6MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:25:10,678 INFO L158 Benchmark]: Witness Printer took 74.14ms. Allocated memory is still 167.8MB. Free memory was 66.6MB in the beginning and 60.8MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:25:10,679 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 209.7MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 791.39ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 67.7MB in the end (delta: 61.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.94ms. Allocated memory is still 167.8MB. Free memory was 67.7MB in the beginning and 64.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.64ms. Allocated memory is still 167.8MB. Free memory was 64.9MB in the beginning and 63.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 346.26ms. Allocated memory is still 167.8MB. Free memory was 63.0MB in the beginning and 46.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1303.38ms. Allocated memory is still 167.8MB. Free memory was 46.1MB in the beginning and 66.6MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 74.14ms. Allocated memory is still 167.8MB. Free memory was 66.6MB in the beginning and 60.8MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1645]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1574]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 65 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 933 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 408 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 525 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 246 NumberOfCodeBlocks, 246 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 237 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 56/56 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-06 17:25:10,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE