./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:55:27,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:55:27,889 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 12:55:27,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:55:27,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:55:27,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:55:27,927 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:55:27,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:55:27,928 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:55:27,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:55:27,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:55:27,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:55:27,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:55:27,945 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:55:27,946 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:55:27,946 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:55:27,946 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 12:55:27,946 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:55:27,946 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:55:27,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:55:27,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:55:27,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 12:55:27,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:55:27,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 12:55:27,949 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:55:27,949 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 12:55:27,949 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:55:27,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:55:27,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 12:55:27,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:55:27,950 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:55:27,950 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:55:27,950 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:55:27,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:55:27,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:55:27,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:55:27,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:55:27,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 12:55:27,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:55:27,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:55:27,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:55:27,952 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:55:27,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:55:27,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:55:27,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2024-10-13 12:55:28,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:55:28,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:55:28,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:55:28,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:55:28,157 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:55:28,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-10-13 12:55:29,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:55:29,512 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:55:29,512 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-10-13 12:55:29,526 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb5b786b/ed44b39758614e6b979ed6b880437f2b/FLAG0d9726e82 [2024-10-13 12:55:29,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb5b786b/ed44b39758614e6b979ed6b880437f2b [2024-10-13 12:55:29,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:55:29,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:55:29,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:55:29,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:55:29,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:55:29,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b23920e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29, skipping insertion in model container [2024-10-13 12:55:29,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,597 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:55:29,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:55:29,769 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:55:29,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:55:29,817 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:55:29,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29 WrapperNode [2024-10-13 12:55:29,820 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:55:29,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:55:29,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:55:29,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:55:29,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,863 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 532 [2024-10-13 12:55:29,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:55:29,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:55:29,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:55:29,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:55:29,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,889 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]. [2024-10-13 12:55:29,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,901 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,904 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:55:29,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:55:29,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:55:29,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:55:29,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (1/1) ... [2024-10-13 12:55:29,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:55:29,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:55:29,950 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) [2024-10-13 12:55:29,951 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 [2024-10-13 12:55:30,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:55:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:55:30,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:55:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:55:30,069 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:55:30,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:55:30,081 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-13 12:55:30,407 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2024-10-13 12:55:30,408 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2024-10-13 12:55:30,449 INFO L? ?]: Removed 125 outVars from TransFormulas that were not future-live. [2024-10-13 12:55:30,449 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:55:30,487 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:55:30,487 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 12:55:30,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:30 BoogieIcfgContainer [2024-10-13 12:55:30,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:55:30,489 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:55:30,489 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:55:30,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:55:30,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:55:29" (1/3) ... [2024-10-13 12:55:30,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac894c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:30, skipping insertion in model container [2024-10-13 12:55:30,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:55:29" (2/3) ... [2024-10-13 12:55:30,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac894c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:55:30, skipping insertion in model container [2024-10-13 12:55:30,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:30" (3/3) ... [2024-10-13 12:55:30,496 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2024-10-13 12:55:30,508 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:55:30,508 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:55:30,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:55:30,569 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;@403fd7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:55:30,569 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-13 12:55:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 126 states have (on average 1.7619047619047619) internal successors, (222), 128 states have internal predecessors, (222), 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) [2024-10-13 12:55:30,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-13 12:55:30,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:55:30,581 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 12:55:30,581 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 12:55:30,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:55:30,587 INFO L85 PathProgramCache]: Analyzing trace with hash 365551295, now seen corresponding path program 1 times [2024-10-13 12:55:30,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:55:30,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75273057] [2024-10-13 12:55:30,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:55:30,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:55:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:55:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:55:30,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:55:30,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75273057] [2024-10-13 12:55:30,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75273057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:55:30,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:55:30,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:55:30,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087250110] [2024-10-13 12:55:30,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:55:30,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:55:30,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:55:30,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:55:30,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:55:30,806 INFO L87 Difference]: Start difference. First operand has 129 states, 126 states have (on average 1.7619047619047619) internal successors, (222), 128 states have internal predecessors, (222), 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 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-10-13 12:55:30,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:55:30,956 INFO L93 Difference]: Finished difference Result 253 states and 437 transitions. [2024-10-13 12:55:30,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:55:30,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-10-13 12:55:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:55:30,977 INFO L225 Difference]: With dead ends: 253 [2024-10-13 12:55:30,977 INFO L226 Difference]: Without dead ends: 119 [2024-10-13 12:55:30,980 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 [2024-10-13 12:55:30,984 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 7 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:55:30,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 319 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:55:31,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-13 12:55:31,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-10-13 12:55:31,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 117 states have (on average 1.547008547008547) internal successors, (181), 118 states have internal predecessors, (181), 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) [2024-10-13 12:55:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 181 transitions. [2024-10-13 12:55:31,029 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 181 transitions. Word has length 16 [2024-10-13 12:55:31,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:55:31,029 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 181 transitions. [2024-10-13 12:55:31,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2024-10-13 12:55:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 181 transitions. [2024-10-13 12:55:31,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 12:55:31,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:55:31,030 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 12:55:31,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:55:31,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 12:55:31,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:55:31,031 INFO L85 PathProgramCache]: Analyzing trace with hash -833523584, now seen corresponding path program 1 times [2024-10-13 12:55:31,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:55:31,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112033131] [2024-10-13 12:55:31,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:55:31,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:55:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:55:31,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:55:31,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:55:31,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112033131] [2024-10-13 12:55:31,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112033131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:55:31,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:55:31,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:55:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704761272] [2024-10-13 12:55:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:55:31,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:55:31,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:55:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:55:31,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:55:31,129 INFO L87 Difference]: Start difference. First operand 119 states and 181 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-10-13 12:55:31,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:55:31,187 INFO L93 Difference]: Finished difference Result 333 states and 508 transitions. [2024-10-13 12:55:31,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:55:31,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 26 [2024-10-13 12:55:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:55:31,193 INFO L225 Difference]: With dead ends: 333 [2024-10-13 12:55:31,193 INFO L226 Difference]: Without dead ends: 223 [2024-10-13 12:55:31,193 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 [2024-10-13 12:55:31,195 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 144 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 12:55:31,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 324 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 12:55:31,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-13 12:55:31,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-10-13 12:55:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 221 states have (on average 1.5203619909502262) internal successors, (336), 222 states have internal predecessors, (336), 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) [2024-10-13 12:55:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 336 transitions. [2024-10-13 12:55:31,212 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 336 transitions. Word has length 26 [2024-10-13 12:55:31,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:55:31,212 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 336 transitions. [2024-10-13 12:55:31,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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) [2024-10-13 12:55:31,212 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 336 transitions. [2024-10-13 12:55:31,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-13 12:55:31,214 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:55:31,214 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 12:55:31,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:55:31,215 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 12:55:31,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:55:31,215 INFO L85 PathProgramCache]: Analyzing trace with hash -833525506, now seen corresponding path program 1 times [2024-10-13 12:55:31,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:55:31,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585007392] [2024-10-13 12:55:31,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:55:31,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:55:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:55:31,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:55:31,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:55:31,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585007392] [2024-10-13 12:55:31,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585007392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:55:31,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:55:31,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:55:31,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609420783] [2024-10-13 12:55:31,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:55:31,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:55:31,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:55:31,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:55:31,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:55:31,290 INFO L87 Difference]: Start difference. First operand 223 states and 336 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-10-13 12:55:31,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:55:31,442 INFO L93 Difference]: Finished difference Result 518 states and 812 transitions. [2024-10-13 12:55:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:55:31,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 26 [2024-10-13 12:55:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:55:31,445 INFO L225 Difference]: With dead ends: 518 [2024-10-13 12:55:31,448 INFO L226 Difference]: Without dead ends: 302 [2024-10-13 12:55:31,449 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 [2024-10-13 12:55:31,449 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 66 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:55:31,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 242 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:55:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-13 12:55:31,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-10-13 12:55:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 301 states have (on average 1.584717607973422) internal successors, (477), 301 states have internal predecessors, (477), 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) [2024-10-13 12:55:31,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 477 transitions. [2024-10-13 12:55:31,471 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 477 transitions. Word has length 26 [2024-10-13 12:55:31,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:55:31,471 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 477 transitions. [2024-10-13 12:55:31,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-10-13 12:55:31,472 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 477 transitions. [2024-10-13 12:55:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-13 12:55:31,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 12:55:31,472 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 12:55:31,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:55:31,473 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-13 12:55:31,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:55:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash -69486614, now seen corresponding path program 1 times [2024-10-13 12:55:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:55:31,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542480417] [2024-10-13 12:55:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:55:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:55:31,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:55:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 12:55:31,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:55:31,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542480417] [2024-10-13 12:55:31,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542480417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:55:31,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:55:31,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 12:55:31,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139392118] [2024-10-13 12:55:31,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:55:31,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 12:55:31,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:55:31,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 12:55:31,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 12:55:31,530 INFO L87 Difference]: Start difference. First operand 302 states and 477 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-10-13 12:55:31,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 12:55:31,653 INFO L93 Difference]: Finished difference Result 713 states and 1162 transitions. [2024-10-13 12:55:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 12:55:31,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 27 [2024-10-13 12:55:31,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 12:55:31,654 INFO L225 Difference]: With dead ends: 713 [2024-10-13 12:55:31,654 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 12:55:31,655 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 [2024-10-13 12:55:31,657 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 51 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 12:55:31,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 208 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 12:55:31,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 12:55:31,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 12:55:31,660 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) [2024-10-13 12:55:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 12:55:31,660 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-10-13 12:55:31,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 12:55:31,660 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 12:55:31,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-10-13 12:55:31,661 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 12:55:31,661 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 12:55:31,663 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-13 12:55:31,663 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-13 12:55:31,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:55:31,666 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-13 12:55:31,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 12:55:31,676 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:55:31,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:55:31 BoogieIcfgContainer [2024-10-13 12:55:31,686 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:55:31,686 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:55:31,686 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:55:31,686 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:55:31,687 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:55:30" (3/4) ... [2024-10-13 12:55:31,688 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:55:31,696 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-13 12:55:31,697 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-13 12:55:31,697 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 12:55:31,698 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 12:55:31,790 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:55:31,790 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:55:31,790 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:55:31,790 INFO L158 Benchmark]: Toolchain (without parser) took 2233.35ms. Allocated memory is still 188.7MB. Free memory was 160.3MB in the beginning and 79.7MB in the end (delta: 80.5MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,791 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 134.2MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:55:31,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.74ms. Allocated memory is still 188.7MB. Free memory was 160.0MB in the beginning and 146.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.10ms. Allocated memory is still 188.7MB. Free memory was 146.4MB in the beginning and 143.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,791 INFO L158 Benchmark]: Boogie Preprocessor took 39.70ms. Allocated memory is still 188.7MB. Free memory was 143.8MB in the beginning and 140.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,791 INFO L158 Benchmark]: RCFGBuilder took 583.16ms. Allocated memory is still 188.7MB. Free memory was 140.1MB in the beginning and 98.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,792 INFO L158 Benchmark]: TraceAbstraction took 1196.64ms. Allocated memory is still 188.7MB. Free memory was 98.1MB in the beginning and 89.2MB in the end (delta: 9.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,792 INFO L158 Benchmark]: Witness Printer took 103.96ms. Allocated memory is still 188.7MB. Free memory was 89.2MB in the beginning and 79.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-13 12:55:31,794 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 134.2MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.74ms. Allocated memory is still 188.7MB. Free memory was 160.0MB in the beginning and 146.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.10ms. Allocated memory is still 188.7MB. Free memory was 146.4MB in the beginning and 143.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.70ms. Allocated memory is still 188.7MB. Free memory was 143.8MB in the beginning and 140.1MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 583.16ms. Allocated memory is still 188.7MB. Free memory was 140.1MB in the beginning and 98.1MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1196.64ms. Allocated memory is still 188.7MB. Free memory was 98.1MB in the beginning and 89.2MB in the end (delta: 9.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Witness Printer took 103.96ms. Allocated memory is still 188.7MB. Free memory was 89.2MB in the beginning and 79.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. 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, 129 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 268 mSDsluCounter, 1093 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 393 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 700 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred 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, 0.3s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 6/6 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! [2024-10-13 12:55:31,816 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