./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 053ed37729093871c2c498497e190e53b613cb8aee6f9e8241abee9e3eadcf24 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:04:11,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:04:11,459 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 10:04:11,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:04:11,464 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:04:11,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:04:11,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:04:11,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:04:11,488 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:04:11,489 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:04:11,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:04:11,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:04:11,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:04:11,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:04:11,493 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:04:11,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:04:11,494 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:04:11,494 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 10:04:11,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:04:11,495 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 10:04:11,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:04:11,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:04:11,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:04:11,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:04:11,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:04:11,500 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:04:11,500 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:04:11,500 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 10:04:11,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:04:11,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:04:11,501 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:04:11,501 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:04:11,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:04:11,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:04:11,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:04:11,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:04:11,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:04:11,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:04:11,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:04:11,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:04:11,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:04:11,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:04:11,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:04:11,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:04:11,506 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 053ed37729093871c2c498497e190e53b613cb8aee6f9e8241abee9e3eadcf24 [2024-11-19 10:04:11,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:04:11,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:04:11,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:04:11,780 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:04:11,780 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:04:11,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2024-11-19 10:04:13,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:04:13,408 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:04:13,409 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-2a.c [2024-11-19 10:04:13,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba21d709f/757ae06c66ce44d18dbfcfa26d40f014/FLAGcb52f4684 [2024-11-19 10:04:13,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba21d709f/757ae06c66ce44d18dbfcfa26d40f014 [2024-11-19 10:04:13,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:04:13,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:04:13,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:04:13,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:04:13,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:04:13,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c67fd24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13, skipping insertion in model container [2024-11-19 10:04:13,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,497 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:04:13,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:04:13,775 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:04:13,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:04:13,832 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:04:13,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13 WrapperNode [2024-11-19 10:04:13,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:04:13,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:04:13,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:04:13,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:04:13,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,881 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 531 [2024-11-19 10:04:13,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:04:13,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:04:13,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:04:13,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:04:13,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,911 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 10:04:13,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,933 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:04:13,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:04:13,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:04:13,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:04:13,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (1/1) ... [2024-11-19 10:04:13,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:04:13,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:04:13,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 10:04:13,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 10:04:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 10:04:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 10:04:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:04:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:04:14,095 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:04:14,097 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:04:14,113 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-19 10:04:14,557 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2024-11-19 10:04:14,557 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2024-11-19 10:04:14,609 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2024-11-19 10:04:14,610 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:04:14,625 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:04:14,625 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 10:04:14,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:04:14 BoogieIcfgContainer [2024-11-19 10:04:14,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:04:14,628 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:04:14,628 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:04:14,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:04:14,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:04:13" (1/3) ... [2024-11-19 10:04:14,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7344ee32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:04:14, skipping insertion in model container [2024-11-19 10:04:14,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:04:13" (2/3) ... [2024-11-19 10:04:14,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7344ee32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:04:14, skipping insertion in model container [2024-11-19 10:04:14,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:04:14" (3/3) ... [2024-11-19 10:04:14,635 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2024-11-19 10:04:14,654 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:04:14,655 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 10:04:14,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:04:14,722 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;@35ef782c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:04:14,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 10:04:14,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 135 states have (on average 1.711111111111111) internal successors, (231), 137 states have internal predecessors, (231), 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) [2024-11-19 10:04:14,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-19 10:04:14,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:04:14,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:04:14,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:04:14,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:04:14,738 INFO L85 PathProgramCache]: Analyzing trace with hash -729047963, now seen corresponding path program 1 times [2024-11-19 10:04:14,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:04:14,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241446205] [2024-11-19 10:04:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:04:14,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:04:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:04:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 10:04:15,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:04:15,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241446205] [2024-11-19 10:04:15,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241446205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:04:15,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:04:15,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:04:15,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010131584] [2024-11-19 10:04:15,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:04:15,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:04:15,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:04:15,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:04:15,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:04:15,095 INFO L87 Difference]: Start difference. First operand has 138 states, 135 states have (on average 1.711111111111111) internal successors, (231), 137 states have internal predecessors, (231), 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) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-19 10:04:15,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:04:15,294 INFO L93 Difference]: Finished difference Result 270 states and 454 transitions. [2024-11-19 10:04:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:04:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-11-19 10:04:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:04:15,306 INFO L225 Difference]: With dead ends: 270 [2024-11-19 10:04:15,307 INFO L226 Difference]: Without dead ends: 123 [2024-11-19 10:04:15,310 INFO L431 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 [2024-11-19 10:04:15,314 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:04:15,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 338 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:04:15,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-19 10:04:15,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2024-11-19 10:04:15,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 122 states have internal predecessors, (185), 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) [2024-11-19 10:04:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 185 transitions. [2024-11-19 10:04:15,355 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 185 transitions. Word has length 18 [2024-11-19 10:04:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:04:15,355 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 185 transitions. [2024-11-19 10:04:15,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-19 10:04:15,356 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 185 transitions. [2024-11-19 10:04:15,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 10:04:15,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:04:15,357 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:04:15,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 10:04:15,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:04:15,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:04:15,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1528557851, now seen corresponding path program 1 times [2024-11-19 10:04:15,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:04:15,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684936305] [2024-11-19 10:04:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:04:15,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:04:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:04:15,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 10:04:15,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:04:15,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684936305] [2024-11-19 10:04:15,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684936305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:04:15,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:04:15,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:04:15,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862147583] [2024-11-19 10:04:15,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:04:15,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:04:15,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:04:15,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:04:15,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:04:15,479 INFO L87 Difference]: Start difference. First operand 123 states and 185 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-19 10:04:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:04:15,527 INFO L93 Difference]: Finished difference Result 340 states and 515 transitions. [2024-11-19 10:04:15,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:04:15,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-19 10:04:15,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:04:15,530 INFO L225 Difference]: With dead ends: 340 [2024-11-19 10:04:15,530 INFO L226 Difference]: Without dead ends: 226 [2024-11-19 10:04:15,531 INFO L431 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 [2024-11-19 10:04:15,532 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 142 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:04:15,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 336 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:04:15,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-19 10:04:15,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-19 10:04:15,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 224 states have (on average 1.5044642857142858) internal successors, (337), 225 states have internal predecessors, (337), 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) [2024-11-19 10:04:15,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 337 transitions. [2024-11-19 10:04:15,547 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 337 transitions. Word has length 30 [2024-11-19 10:04:15,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:04:15,547 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 337 transitions. [2024-11-19 10:04:15,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-19 10:04:15,547 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 337 transitions. [2024-11-19 10:04:15,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 10:04:15,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:04:15,548 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:04:15,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 10:04:15,549 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:04:15,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:04:15,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1528559773, now seen corresponding path program 1 times [2024-11-19 10:04:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:04:15,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013437544] [2024-11-19 10:04:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:04:15,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:04:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:04:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 10:04:15,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:04:15,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013437544] [2024-11-19 10:04:15,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013437544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:04:15,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:04:15,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:04:15,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958683936] [2024-11-19 10:04:15,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:04:15,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:04:15,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:04:15,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:04:15,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:04:15,652 INFO L87 Difference]: Start difference. First operand 226 states and 337 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-19 10:04:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:04:15,856 INFO L93 Difference]: Finished difference Result 524 states and 812 transitions. [2024-11-19 10:04:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:04:15,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-19 10:04:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:04:15,859 INFO L225 Difference]: With dead ends: 524 [2024-11-19 10:04:15,859 INFO L226 Difference]: Without dead ends: 307 [2024-11-19 10:04:15,860 INFO L431 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 [2024-11-19 10:04:15,861 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 67 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:04:15,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 247 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:04:15,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2024-11-19 10:04:15,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2024-11-19 10:04:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.5620915032679739) internal successors, (478), 306 states have internal predecessors, (478), 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) [2024-11-19 10:04:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 478 transitions. [2024-11-19 10:04:15,888 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 478 transitions. Word has length 30 [2024-11-19 10:04:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:04:15,888 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 478 transitions. [2024-11-19 10:04:15,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-19 10:04:15,888 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 478 transitions. [2024-11-19 10:04:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 10:04:15,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:04:15,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:04:15,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 10:04:15,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-19 10:04:15,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:04:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash -140712411, now seen corresponding path program 1 times [2024-11-19 10:04:15,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:04:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160625760] [2024-11-19 10:04:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:04:15,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:04:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:04:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-19 10:04:15,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:04:15,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160625760] [2024-11-19 10:04:15,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160625760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:04:15,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:04:15,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:04:15,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143795660] [2024-11-19 10:04:15,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:04:15,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:04:15,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:04:15,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:04:15,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:04:15,996 INFO L87 Difference]: Start difference. First operand 307 states and 478 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-19 10:04:16,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:04:16,192 INFO L93 Difference]: Finished difference Result 724 states and 1163 transitions. [2024-11-19 10:04:16,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:04:16,192 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2024-11-19 10:04:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:04:16,193 INFO L225 Difference]: With dead ends: 724 [2024-11-19 10:04:16,193 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 10:04:16,196 INFO L431 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 [2024-11-19 10:04:16,201 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 52 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:04:16,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 218 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:04:16,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 10:04:16,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 10:04:16,202 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) [2024-11-19 10:04:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 10:04:16,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2024-11-19 10:04:16,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:04:16,203 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 10:04:16,205 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), 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) [2024-11-19 10:04:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 10:04:16,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 10:04:16,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-19 10:04:16,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-19 10:04:16,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 10:04:16,212 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 10:04:16,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 10:04:16,227 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 10:04:16,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:04:16 BoogieIcfgContainer [2024-11-19 10:04:16,248 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 10:04:16,248 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 10:04:16,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 10:04:16,249 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 10:04:16,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:04:14" (3/4) ... [2024-11-19 10:04:16,253 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 10:04:16,270 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-19 10:04:16,275 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 10:04:16,275 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 10:04:16,276 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 10:04:16,424 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 10:04:16,424 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 10:04:16,425 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 10:04:16,425 INFO L158 Benchmark]: Toolchain (without parser) took 2974.95ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 78.4MB in the beginning and 151.5MB in the end (delta: -73.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 10:04:16,425 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 146.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 10:04:16,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.23ms. Allocated memory is still 146.8MB. Free memory was 78.3MB in the beginning and 106.9MB in the end (delta: -28.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-19 10:04:16,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.63ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 104.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 10:04:16,426 INFO L158 Benchmark]: Boogie Preprocessor took 57.24ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 10:04:16,427 INFO L158 Benchmark]: RCFGBuilder took 685.18ms. Allocated memory is still 146.8MB. Free memory was 101.1MB in the beginning and 62.9MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-11-19 10:04:16,427 INFO L158 Benchmark]: TraceAbstraction took 1619.33ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 62.3MB in the beginning and 162.0MB in the end (delta: -99.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 10:04:16,427 INFO L158 Benchmark]: Witness Printer took 176.38ms. Allocated memory is still 207.6MB. Free memory was 162.0MB in the beginning and 151.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 10:04:16,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 146.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.23ms. Allocated memory is still 146.8MB. Free memory was 78.3MB in the beginning and 106.9MB in the end (delta: -28.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.63ms. Allocated memory is still 146.8MB. Free memory was 106.9MB in the beginning and 104.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.24ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 101.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.18ms. Allocated memory is still 146.8MB. Free memory was 101.1MB in the beginning and 62.9MB in the end (delta: 38.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1619.33ms. Allocated memory was 146.8MB in the beginning and 207.6MB in the end (delta: 60.8MB). Free memory was 62.3MB in the beginning and 162.0MB in the end (delta: -99.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 176.38ms. Allocated memory is still 207.6MB. Free memory was 162.0MB in the beginning and 151.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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: 284]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 284]: 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 1 procedures, 138 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 1139 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 412 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 423 IncrementalHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 727 mSDtfsCounter, 423 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=307occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 9/9 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2024-11-19 10:04:16,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE