./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 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/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash addbe60437651f32d2b195f4fe724b63cc7c728da451c76ab25635aac9ff24e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 22:37:56,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 22:37:56,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-24 22:37:56,575 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 22:37:56,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 22:37:56,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 22:37:56,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 22:37:56,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 22:37:56,610 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 22:37:56,611 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 22:37:56,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 22:37:56,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 22:37:56,613 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 22:37:56,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 22:37:56,614 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 22:37:56,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 22:37:56,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 22:37:56,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 22:37:56,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 22:37:56,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 22:37:56,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 22:37:56,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 22:37:56,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 22:37:56,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 22:37:56,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 22:37:56,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 22:37:56,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 22:37:56,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 22:37:56,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 22:37:56,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 22:37:56,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 22:37:56,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 22:37:56,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 22:37:56,620 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 22:37:56,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 22:37:56,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 22:37:56,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 22:37:56,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 22:37:56,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 22:37:56,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 22:37:56,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 22:37:56,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> addbe60437651f32d2b195f4fe724b63cc7c728da451c76ab25635aac9ff24e0 [2024-10-24 22:37:56,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 22:37:56,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 22:37:56,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 22:37:56,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 22:37:56,870 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 22:37:56,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i [2024-10-24 22:37:58,342 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 22:37:58,714 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 22:37:58,715 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i [2024-10-24 22:37:58,749 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/130451c0c/6d71f37be1d44bcc9781bd864d690720/FLAGb458e76a1 [2024-10-24 22:37:58,914 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/130451c0c/6d71f37be1d44bcc9781bd864d690720 [2024-10-24 22:37:58,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 22:37:58,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 22:37:58,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 22:37:58,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 22:37:58,926 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 22:37:58,927 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:37:58" (1/1) ... [2024-10-24 22:37:58,928 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109b81db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58, skipping insertion in model container [2024-10-24 22:37:58,928 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:37:58" (1/1) ... [2024-10-24 22:37:59,004 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 22:37:59,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 22:37:59,811 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 22:37:59,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 22:38:00,019 INFO L204 MainTranslator]: Completed translation [2024-10-24 22:38:00,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00 WrapperNode [2024-10-24 22:38:00,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 22:38:00,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 22:38:00,022 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 22:38:00,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 22:38:00,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,087 INFO L138 Inliner]: procedures = 503, calls = 36, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 75 [2024-10-24 22:38:00,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 22:38:00,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 22:38:00,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 22:38:00,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 22:38:00,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,101 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,118 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-10-24 22:38:00,119 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,119 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 22:38:00,133 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 22:38:00,133 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 22:38:00,133 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 22:38:00,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (1/1) ... [2024-10-24 22:38:00,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 22:38:00,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 22:38:00,175 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) [2024-10-24 22:38:00,176 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 [2024-10-24 22:38:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-10-24 22:38:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-10-24 22:38:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-24 22:38:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-24 22:38:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 22:38:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-10-24 22:38:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-10-24 22:38:00,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 22:38:00,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 22:38:00,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 22:38:00,341 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 22:38:00,342 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 22:38:00,509 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-10-24 22:38:00,509 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 22:38:00,539 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 22:38:00,539 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 22:38:00,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:00 BoogieIcfgContainer [2024-10-24 22:38:00,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 22:38:00,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 22:38:00,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 22:38:00,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 22:38:00,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:37:58" (1/3) ... [2024-10-24 22:38:00,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3818abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:00, skipping insertion in model container [2024-10-24 22:38:00,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:00" (2/3) ... [2024-10-24 22:38:00,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3818abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:00, skipping insertion in model container [2024-10-24 22:38:00,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:00" (3/3) ... [2024-10-24 22:38:00,550 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_44_good.i [2024-10-24 22:38:00,565 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 22:38:00,565 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 22:38:00,616 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 22:38:00,622 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;@670260e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 22:38:00,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 22:38:00,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 28 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 22:38:00,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 22:38:00,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:00,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 22:38:00,635 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:00,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash 278590398, now seen corresponding path program 1 times [2024-10-24 22:38:00,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 22:38:00,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117565698] [2024-10-24 22:38:00,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:00,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 22:38:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:00,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 22:38:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:01,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 22:38:01,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117565698] [2024-10-24 22:38:01,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117565698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:01,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:01,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 22:38:01,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163685776] [2024-10-24 22:38:01,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:01,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 22:38:01,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 22:38:01,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 22:38:01,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 22:38:01,089 INFO L87 Difference]: Start difference. First operand has 40 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 28 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:01,236 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2024-10-24 22:38:01,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 22:38:01,238 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-24 22:38:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:01,246 INFO L225 Difference]: With dead ends: 60 [2024-10-24 22:38:01,247 INFO L226 Difference]: Without dead ends: 46 [2024-10-24 22:38:01,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 22:38:01,256 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 18 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:01,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 188 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 22:38:01,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-24 22:38:01,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-10-24 22:38:01,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 32 states have internal predecessors, (39), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 22:38:01,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2024-10-24 22:38:01,297 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 11 [2024-10-24 22:38:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:01,298 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2024-10-24 22:38:01,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,298 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2024-10-24 22:38:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 22:38:01,299 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:01,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 22:38:01,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 22:38:01,300 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:01,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:01,301 INFO L85 PathProgramCache]: Analyzing trace with hash 46350988, now seen corresponding path program 1 times [2024-10-24 22:38:01,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 22:38:01,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658008964] [2024-10-24 22:38:01,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:01,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 22:38:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 22:38:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:01,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 22:38:01,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658008964] [2024-10-24 22:38:01,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658008964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:01,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:01,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 22:38:01,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461027056] [2024-10-24 22:38:01,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:01,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 22:38:01,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 22:38:01,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 22:38:01,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 22:38:01,380 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:01,404 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2024-10-24 22:38:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 22:38:01,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-10-24 22:38:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:01,405 INFO L225 Difference]: With dead ends: 43 [2024-10-24 22:38:01,405 INFO L226 Difference]: Without dead ends: 42 [2024-10-24 22:38:01,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 22:38:01,407 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:01,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 68 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:01,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-10-24 22:38:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-10-24 22:38:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 31 states have internal predecessors, (37), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 22:38:01,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2024-10-24 22:38:01,420 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 12 [2024-10-24 22:38:01,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:01,421 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2024-10-24 22:38:01,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2024-10-24 22:38:01,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 22:38:01,421 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:01,421 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 22:38:01,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 22:38:01,422 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~int~TO~VOIDErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:01,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 46367837, now seen corresponding path program 1 times [2024-10-24 22:38:01,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 22:38:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185516384] [2024-10-24 22:38:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:01,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 22:38:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 22:38:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:01,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 22:38:01,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185516384] [2024-10-24 22:38:01,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185516384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:01,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:01,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 22:38:01,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930526642] [2024-10-24 22:38:01,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:01,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 22:38:01,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 22:38:01,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 22:38:01,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 22:38:01,583 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:01,669 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-10-24 22:38:01,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 22:38:01,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-10-24 22:38:01,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:01,670 INFO L225 Difference]: With dead ends: 44 [2024-10-24 22:38:01,670 INFO L226 Difference]: Without dead ends: 43 [2024-10-24 22:38:01,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 22:38:01,672 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 15 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:01,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 153 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 22:38:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-10-24 22:38:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-10-24 22:38:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 31 states have internal predecessors, (36), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 22:38:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2024-10-24 22:38:01,681 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 12 [2024-10-24 22:38:01,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:01,681 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2024-10-24 22:38:01,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,682 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2024-10-24 22:38:01,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-24 22:38:01,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:01,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 22:38:01,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 22:38:01,683 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:01,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:01,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1436880705, now seen corresponding path program 1 times [2024-10-24 22:38:01,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 22:38:01,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661264157] [2024-10-24 22:38:01,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:01,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 22:38:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 22:38:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:01,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 22:38:01,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661264157] [2024-10-24 22:38:01,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661264157] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:01,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:01,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 22:38:01,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104127962] [2024-10-24 22:38:01,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:01,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 22:38:01,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 22:38:01,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 22:38:01,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:01,782 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:01,810 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2024-10-24 22:38:01,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 22:38:01,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-10-24 22:38:01,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:01,811 INFO L225 Difference]: With dead ends: 66 [2024-10-24 22:38:01,813 INFO L226 Difference]: Without dead ends: 34 [2024-10-24 22:38:01,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:01,814 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 5 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:01,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 76 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-10-24 22:38:01,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-10-24 22:38:01,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 states have internal predecessors, (27), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 22:38:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2024-10-24 22:38:01,827 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 13 [2024-10-24 22:38:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:01,827 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2024-10-24 22:38:01,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2024-10-24 22:38:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 22:38:01,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:01,828 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] [2024-10-24 22:38:01,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 22:38:01,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:01,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2117363543, now seen corresponding path program 1 times [2024-10-24 22:38:01,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 22:38:01,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131321300] [2024-10-24 22:38:01,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:01,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 22:38:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 22:38:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 22:38:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 22:38:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:01,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 22:38:01,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131321300] [2024-10-24 22:38:01,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131321300] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:01,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:01,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 22:38:01,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328726888] [2024-10-24 22:38:01,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:01,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 22:38:01,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 22:38:01,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 22:38:01,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:01,994 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:02,021 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2024-10-24 22:38:02,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 22:38:02,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 22:38:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:02,022 INFO L225 Difference]: With dead ends: 34 [2024-10-24 22:38:02,022 INFO L226 Difference]: Without dead ends: 30 [2024-10-24 22:38:02,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:02,024 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:02,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 66 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:02,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-24 22:38:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-24 22:38:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 22:38:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2024-10-24 22:38:02,033 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 25 [2024-10-24 22:38:02,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:02,033 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2024-10-24 22:38:02,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2024-10-24 22:38:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 22:38:02,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:02,035 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] [2024-10-24 22:38:02,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 22:38:02,035 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:02,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:02,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1027614060, now seen corresponding path program 1 times [2024-10-24 22:38:02,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 22:38:02,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493045775] [2024-10-24 22:38:02,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:02,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 22:38:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:02,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 22:38:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:02,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 22:38:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:02,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-24 22:38:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:02,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 22:38:02,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493045775] [2024-10-24 22:38:02,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493045775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:02,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:02,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 22:38:02,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528385314] [2024-10-24 22:38:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:02,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 22:38:02,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 22:38:02,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 22:38:02,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 22:38:02,173 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:02,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:02,224 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2024-10-24 22:38:02,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 22:38:02,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-10-24 22:38:02,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:02,225 INFO L225 Difference]: With dead ends: 30 [2024-10-24 22:38:02,225 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 22:38:02,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 22:38:02,227 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:02,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 109 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:02,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 22:38:02,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 22:38:02,228 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) [2024-10-24 22:38:02,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 22:38:02,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2024-10-24 22:38:02,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:02,229 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 22:38:02,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:02,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 22:38:02,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 22:38:02,232 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-24 22:38:02,232 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-24 22:38:02,232 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-24 22:38:02,233 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-24 22:38:02,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 22:38:02,236 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-24 22:38:02,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 22:38:02,481 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 22:38:02,507 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-10-24 22:38:02,508 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-10-24 22:38:02,508 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-10-24 22:38:02,508 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper [2024-10-24 22:38:02,509 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower [2024-10-24 22:38:02,510 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha [2024-10-24 22:38:02,510 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit [2024-10-24 22:38:02,510 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit [2024-10-24 22:38:02,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace [2024-10-24 22:38:02,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint [2024-10-24 22:38:02,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph [2024-10-24 22:38:02,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank [2024-10-24 22:38:02,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl [2024-10-24 22:38:02,511 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct [2024-10-24 22:38:02,512 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum [2024-10-24 22:38:02,512 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper [2024-10-24 22:38:02,512 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower [2024-10-24 22:38:02,529 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha [2024-10-24 22:38:02,533 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit [2024-10-24 22:38:02,533 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit [2024-10-24 22:38:02,533 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower [2024-10-24 22:38:02,534 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct [2024-10-24 22:38:02,535 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum [2024-10-24 22:38:02,544 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-10-24 22:38:02,545 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-10-24 22:38:02,546 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-10-24 22:38:02,550 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper [2024-10-24 22:38:02,550 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower [2024-10-24 22:38:02,550 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct [2024-10-24 22:38:02,551 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank [2024-10-24 22:38:02,552 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl [2024-10-24 22:38:02,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct [2024-10-24 22:38:02,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum [2024-10-24 22:38:02,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper [2024-10-24 22:38:02,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower [2024-10-24 22:38:02,553 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha [2024-10-24 22:38:02,560 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit [2024-10-24 22:38:02,560 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct [2024-10-24 22:38:02,561 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum [2024-10-24 22:38:02,577 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createProcedureContractResults(FloydHoareUtils.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-24 22:38:02,581 INFO L158 Benchmark]: Toolchain (without parser) took 3662.95ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 68.7MB in the beginning and 159.7MB in the end (delta: -90.9MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB. [2024-10-24 22:38:02,581 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 22:38:02,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1100.54ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 68.6MB in the beginning and 113.4MB in the end (delta: -44.8MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-10-24 22:38:02,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.49ms. Allocated memory is still 201.3MB. Free memory was 113.4MB in the beginning and 110.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 22:38:02,582 INFO L158 Benchmark]: Boogie Preprocessor took 44.16ms. Allocated memory is still 201.3MB. Free memory was 110.2MB in the beginning and 108.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 22:38:02,582 INFO L158 Benchmark]: RCFGBuilder took 406.46ms. Allocated memory is still 201.3MB. Free memory was 108.1MB in the beginning and 91.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-24 22:38:02,582 INFO L158 Benchmark]: TraceAbstraction took 2035.84ms. Allocated memory is still 201.3MB. Free memory was 90.3MB in the beginning and 159.7MB in the end (delta: -69.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2024-10-24 22:38:02,587 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 142.6MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1100.54ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 68.6MB in the beginning and 113.4MB in the end (delta: -44.8MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.49ms. Allocated memory is still 201.3MB. Free memory was 113.4MB in the beginning and 110.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.16ms. Allocated memory is still 201.3MB. Free memory was 110.2MB in the beginning and 108.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.46ms. Allocated memory is still 201.3MB. Free memory was 108.1MB in the beginning and 91.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2035.84ms. Allocated memory is still 201.3MB. Free memory was 90.3MB in the beginning and 159.7MB in the end (delta: -69.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum * 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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 4 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 660 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 473 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 187 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=1, InterpolantAutomatonStates: 29, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 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 4 specifications checked. All of them hold - ProcedureContractResult [Line: 1412]: Procedure Contract for printLine Derived contract for procedure printLine. Ensures: (((((((((((((((((stdin == \old(stdin)) && (stdout == \old(stdout))) && (stderr == \old(stderr))) && (__tzname == \old(__tzname))) && (__daylight == \old(__daylight))) && (__timezone == \old(__timezone))) && (tzname == \old(tzname))) && (daylight == \old(daylight))) && (timezone == \old(timezone))) && (GLOBAL_CONST_TRUE == \old(GLOBAL_CONST_TRUE))) && (GLOBAL_CONST_FALSE == \old(GLOBAL_CONST_FALSE))) && (GLOBAL_CONST_FIVE == \old(GLOBAL_CONST_FIVE))) && (globalTrue == \old(globalTrue))) && (globalFalse == \old(globalFalse))) && (globalFive == \old(globalFive))) && (globalArgc == \old(globalArgc))) && (globalArgv == \old(globalArgv))) - ProcedureContractResult [Line: 1426]: Procedure Contract for printIntLine Derived contract for procedure printIntLine. Ensures: (((((((((((((((((stdin == \old(stdin)) && (stdout == \old(stdout))) && (stderr == \old(stderr))) && (__tzname == \old(__tzname))) && (__daylight == \old(__daylight))) && (__timezone == \old(__timezone))) && (tzname == \old(tzname))) && (daylight == \old(daylight))) && (timezone == \old(timezone))) && (GLOBAL_CONST_TRUE == \old(GLOBAL_CONST_TRUE))) && (GLOBAL_CONST_FALSE == \old(GLOBAL_CONST_FALSE))) && (GLOBAL_CONST_FIVE == \old(GLOBAL_CONST_FIVE))) && (globalTrue == \old(globalTrue))) && (globalFalse == \old(globalFalse))) && (globalFive == \old(globalFive))) && (globalArgc == \old(globalArgc))) && (globalArgv == \old(globalArgv))) - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createProcedureContractResults(FloydHoareUtils.java:181) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-24 22:38:02,620 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash addbe60437651f32d2b195f4fe724b63cc7c728da451c76ab25635aac9ff24e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 22:38:04,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 22:38:05,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-10-24 22:38:05,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 22:38:05,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 22:38:05,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-10-24 22:38:05,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 22:38:05,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 22:38:05,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 22:38:05,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 22:38:05,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 22:38:05,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 22:38:05,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 22:38:05,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 22:38:05,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 22:38:05,063 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 22:38:05,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 22:38:05,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 22:38:05,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 22:38:05,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 22:38:05,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 22:38:05,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 22:38:05,069 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 22:38:05,069 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 22:38:05,069 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 22:38:05,070 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 22:38:05,070 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 22:38:05,070 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 22:38:05,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 22:38:05,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 22:38:05,071 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 22:38:05,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 22:38:05,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 22:38:05,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 22:38:05,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 22:38:05,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 22:38:05,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 22:38:05,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 22:38:05,074 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 22:38:05,074 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 22:38:05,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 22:38:05,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 22:38:05,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 22:38:05,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 22:38:05,076 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 22:38:05,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> addbe60437651f32d2b195f4fe724b63cc7c728da451c76ab25635aac9ff24e0 [2024-10-24 22:38:05,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 22:38:05,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 22:38:05,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 22:38:05,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 22:38:05,417 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 22:38:05,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i [2024-10-24 22:38:06,956 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 22:38:07,348 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 22:38:07,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_44_good.i [2024-10-24 22:38:07,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e768aa2d0/0a247cb1be5c4db480289a469c0fc9e0/FLAG5e195b552 [2024-10-24 22:38:07,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e768aa2d0/0a247cb1be5c4db480289a469c0fc9e0 [2024-10-24 22:38:07,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 22:38:07,545 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 22:38:07,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 22:38:07,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 22:38:07,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 22:38:07,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:38:07" (1/1) ... [2024-10-24 22:38:07,554 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55db32f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:07, skipping insertion in model container [2024-10-24 22:38:07,554 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:38:07" (1/1) ... [2024-10-24 22:38:07,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 22:38:08,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 22:38:08,511 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 22:38:08,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 22:38:08,727 INFO L204 MainTranslator]: Completed translation [2024-10-24 22:38:08,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08 WrapperNode [2024-10-24 22:38:08,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 22:38:08,729 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 22:38:08,729 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 22:38:08,729 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 22:38:08,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,792 INFO L138 Inliner]: procedures = 508, calls = 36, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 74 [2024-10-24 22:38:08,792 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 22:38:08,793 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 22:38:08,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 22:38:08,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 22:38:08,802 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,806 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,819 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-10-24 22:38:08,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 22:38:08,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 22:38:08,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 22:38:08,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 22:38:08,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ... [2024-10-24 22:38:08,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 22:38:08,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 22:38:08,882 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) [2024-10-24 22:38:08,884 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 [2024-10-24 22:38:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-10-24 22:38:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-10-24 22:38:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-24 22:38:08,916 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-24 22:38:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 22:38:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 22:38:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_INT~TO~VOID [2024-10-24 22:38:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_INT~TO~VOID [2024-10-24 22:38:08,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 22:38:08,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 22:38:09,081 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 22:38:09,084 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 22:38:09,247 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-10-24 22:38:09,247 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 22:38:09,303 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 22:38:09,303 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 22:38:09,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:09 BoogieIcfgContainer [2024-10-24 22:38:09,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 22:38:09,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 22:38:09,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 22:38:09,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 22:38:09,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:38:07" (1/3) ... [2024-10-24 22:38:09,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6701d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:09, skipping insertion in model container [2024-10-24 22:38:09,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (2/3) ... [2024-10-24 22:38:09,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6701d24d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:09, skipping insertion in model container [2024-10-24 22:38:09,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:09" (3/3) ... [2024-10-24 22:38:09,316 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_44_good.i [2024-10-24 22:38:09,329 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 22:38:09,330 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-24 22:38:09,386 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 22:38:09,391 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;@2d7710dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 22:38:09,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 22:38:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 28 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-24 22:38:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 22:38:09,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:09,402 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 22:38:09,403 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:09,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:09,409 INFO L85 PathProgramCache]: Analyzing trace with hash 278590398, now seen corresponding path program 1 times [2024-10-24 22:38:09,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 22:38:09,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274832500] [2024-10-24 22:38:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:09,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:09,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 22:38:09,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 22:38:09,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 22:38:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:09,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 22:38:09,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 22:38:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:09,680 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 22:38:09,681 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 22:38:09,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1274832500] [2024-10-24 22:38:09,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1274832500] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:09,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:09,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 22:38:09,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594587417] [2024-10-24 22:38:09,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:09,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 22:38:09,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 22:38:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 22:38:09,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 22:38:09,713 INFO L87 Difference]: Start difference. First operand has 40 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 28 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:09,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:09,846 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2024-10-24 22:38:09,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 22:38:09,849 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-10-24 22:38:09,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:09,856 INFO L225 Difference]: With dead ends: 58 [2024-10-24 22:38:09,856 INFO L226 Difference]: Without dead ends: 40 [2024-10-24 22:38:09,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-24 22:38:09,864 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 16 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:09,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 182 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 22:38:09,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-24 22:38:09,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2024-10-24 22:38:09,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 28 states have internal predecessors, (33), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 22:38:09,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 46 transitions. [2024-10-24 22:38:09,903 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 46 transitions. Word has length 11 [2024-10-24 22:38:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:09,905 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 46 transitions. [2024-10-24 22:38:09,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:09,905 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2024-10-24 22:38:09,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-24 22:38:09,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:09,909 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 22:38:09,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 22:38:10,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:10,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:10,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:10,111 INFO L85 PathProgramCache]: Analyzing trace with hash 46350988, now seen corresponding path program 1 times [2024-10-24 22:38:10,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 22:38:10,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906714144] [2024-10-24 22:38:10,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:10,113 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:10,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 22:38:10,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 22:38:10,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 22:38:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:10,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 22:38:10,219 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 22:38:10,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:10,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 22:38:10,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 22:38:10,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906714144] [2024-10-24 22:38:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906714144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:10,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:10,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 22:38:10,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398970481] [2024-10-24 22:38:10,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:10,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 22:38:10,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 22:38:10,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 22:38:10,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:10,247 INFO L87 Difference]: Start difference. First operand 39 states and 46 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:10,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:10,307 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2024-10-24 22:38:10,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 22:38:10,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-10-24 22:38:10,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:10,309 INFO L225 Difference]: With dead ends: 60 [2024-10-24 22:38:10,309 INFO L226 Difference]: Without dead ends: 31 [2024-10-24 22:38:10,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:10,312 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 5 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:10,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:10,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-24 22:38:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-10-24 22:38:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 22:38:10,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2024-10-24 22:38:10,327 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 12 [2024-10-24 22:38:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:10,327 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2024-10-24 22:38:10,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 22:38:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2024-10-24 22:38:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 22:38:10,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:10,330 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] [2024-10-24 22:38:10,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-24 22:38:10,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:10,531 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:10,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:10,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2117363543, now seen corresponding path program 1 times [2024-10-24 22:38:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 22:38:10,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95738739] [2024-10-24 22:38:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:10,532 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:10,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 22:38:10,534 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 22:38:10,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-24 22:38:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:10,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 22:38:10,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 22:38:10,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 22:38:10,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 22:38:10,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 22:38:10,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95738739] [2024-10-24 22:38:10,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95738739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:10,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:10,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 22:38:10,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429387386] [2024-10-24 22:38:10,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:10,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 22:38:10,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 22:38:10,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 22:38:10,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:10,699 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:10,731 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2024-10-24 22:38:10,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 22:38:10,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 22:38:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:10,732 INFO L225 Difference]: With dead ends: 31 [2024-10-24 22:38:10,732 INFO L226 Difference]: Without dead ends: 29 [2024-10-24 22:38:10,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 22:38:10,734 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:10,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-10-24 22:38:10,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-10-24 22:38:10,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 22:38:10,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2024-10-24 22:38:10,747 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2024-10-24 22:38:10,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:10,747 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2024-10-24 22:38:10,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:10,747 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2024-10-24 22:38:10,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 22:38:10,750 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 22:38:10,750 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] [2024-10-24 22:38:10,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-24 22:38:10,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:10,954 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-10-24 22:38:10,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 22:38:10,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1213777151, now seen corresponding path program 1 times [2024-10-24 22:38:10,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 22:38:10,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524817682] [2024-10-24 22:38:10,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 22:38:10,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:10,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 22:38:10,959 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 22:38:10,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-24 22:38:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 22:38:11,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 22:38:11,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 22:38:11,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-24 22:38:11,064 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 22:38:11,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 22:38:11,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524817682] [2024-10-24 22:38:11,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524817682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 22:38:11,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 22:38:11,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 22:38:11,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201184495] [2024-10-24 22:38:11,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 22:38:11,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 22:38:11,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 22:38:11,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 22:38:11,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 22:38:11,068 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:11,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 22:38:11,089 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-10-24 22:38:11,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 22:38:11,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-10-24 22:38:11,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 22:38:11,090 INFO L225 Difference]: With dead ends: 29 [2024-10-24 22:38:11,091 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 22:38:11,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 22:38:11,093 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 22:38:11,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 22:38:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 22:38:11,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 22:38:11,097 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) [2024-10-24 22:38:11,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 22:38:11,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-10-24 22:38:11,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 22:38:11,097 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 22:38:11,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 22:38:11,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 22:38:11,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 22:38:11,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~C_INT~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-10-24 22:38:11,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~C_INT~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-10-24 22:38:11,103 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~C_INT~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-10-24 22:38:11,106 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ##fun~C_INT~TO~VOIDErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-10-24 22:38:11,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-24 22:38:11,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 22:38:11,309 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-24 22:38:11,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 22:38:11,437 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 22:38:11,450 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-10-24 22:38:11,451 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-10-24 22:38:11,451 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-10-24 22:38:11,452 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper [2024-10-24 22:38:11,452 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower [2024-10-24 22:38:11,452 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha [2024-10-24 22:38:11,452 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit [2024-10-24 22:38:11,452 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit [2024-10-24 22:38:11,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace [2024-10-24 22:38:11,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint [2024-10-24 22:38:11,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph [2024-10-24 22:38:11,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank [2024-10-24 22:38:11,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl [2024-10-24 22:38:11,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct [2024-10-24 22:38:11,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum [2024-10-24 22:38:11,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper [2024-10-24 22:38:11,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower [2024-10-24 22:38:11,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha [2024-10-24 22:38:11,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit [2024-10-24 22:38:11,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit [2024-10-24 22:38:11,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace [2024-10-24 22:38:11,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint [2024-10-24 22:38:11,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph [2024-10-24 22:38:11,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank [2024-10-24 22:38:11,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl [2024-10-24 22:38:11,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct [2024-10-24 22:38:11,456 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum [2024-10-24 22:38:11,457 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper [2024-10-24 22:38:11,457 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower [2024-10-24 22:38:11,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha [2024-10-24 22:38:11,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit [2024-10-24 22:38:11,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit [2024-10-24 22:38:11,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace [2024-10-24 22:38:11,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint [2024-10-24 22:38:11,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph [2024-10-24 22:38:11,459 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank [2024-10-24 22:38:11,459 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl [2024-10-24 22:38:11,459 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct [2024-10-24 22:38:11,461 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum [2024-10-24 22:38:11,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-10-24 22:38:11,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-10-24 22:38:11,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-10-24 22:38:11,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper [2024-10-24 22:38:11,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower [2024-10-24 22:38:11,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha [2024-10-24 22:38:11,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit [2024-10-24 22:38:11,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit [2024-10-24 22:38:11,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace [2024-10-24 22:38:11,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint [2024-10-24 22:38:11,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph [2024-10-24 22:38:11,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank [2024-10-24 22:38:11,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl [2024-10-24 22:38:11,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct [2024-10-24 22:38:11,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum [2024-10-24 22:38:11,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper [2024-10-24 22:38:11,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower [2024-10-24 22:38:11,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank [2024-10-24 22:38:11,472 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl [2024-10-24 22:38:11,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct [2024-10-24 22:38:11,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum [2024-10-24 22:38:11,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper [2024-10-24 22:38:11,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower [2024-10-24 22:38:11,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha [2024-10-24 22:38:11,473 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl [2024-10-24 22:38:11,474 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct [2024-10-24 22:38:11,475 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum [2024-10-24 22:38:11,487 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createProcedureContractResults(FloydHoareUtils.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-10-24 22:38:11,491 INFO L158 Benchmark]: Toolchain (without parser) took 3945.32ms. Allocated memory was 52.4MB in the beginning and 96.5MB in the end (delta: 44.0MB). Free memory was 25.2MB in the beginning and 58.2MB in the end (delta: -32.9MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2024-10-24 22:38:11,491 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 41.9MB. Free memory was 20.7MB in the beginning and 20.6MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 22:38:11,491 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1181.83ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 25.1MB in the beginning and 33.0MB in the end (delta: -7.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-10-24 22:38:11,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.74ms. Allocated memory is still 65.0MB. Free memory was 33.0MB in the beginning and 30.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 22:38:11,492 INFO L158 Benchmark]: Boogie Preprocessor took 51.85ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 26.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 22:38:11,493 INFO L158 Benchmark]: RCFGBuilder took 458.33ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 26.9MB in the beginning and 50.1MB in the end (delta: -23.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 22:38:11,493 INFO L158 Benchmark]: TraceAbstraction took 2184.20ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 58.2MB in the end (delta: -8.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 22:38:11,495 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 41.9MB. Free memory was 20.7MB in the beginning and 20.6MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1181.83ms. Allocated memory was 52.4MB in the beginning and 65.0MB in the end (delta: 12.6MB). Free memory was 25.1MB in the beginning and 33.0MB in the end (delta: -7.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.74ms. Allocated memory is still 65.0MB. Free memory was 33.0MB in the beginning and 30.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.85ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 26.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 458.33ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 26.9MB in the beginning and 50.1MB in the end (delta: -23.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2184.20ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 58.2MB in the end (delta: -8.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_IScntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed1~0~_ISalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~__ISwalnum - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwupper - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwlower - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalpha - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwxdigit - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwspace - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwprint - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwgraph - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwblank - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwcntrl - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwpunct - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed2~0~_ISwalnum * 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: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1567]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: 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 4 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 361 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 245 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 116 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 2 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5/5 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 4 specifications checked. All of them hold - ProcedureContractResult [Line: 1412]: Procedure Contract for printLine Derived contract for procedure printLine. Ensures: (((((((((((((((((stdin == \old(stdin)) && (stdout == \old(stdout))) && (stderr == \old(stderr))) && (__tzname == \old(__tzname))) && (__daylight == \old(__daylight))) && (__timezone == \old(__timezone))) && (tzname == \old(tzname))) && (daylight == \old(daylight))) && (timezone == \old(timezone))) && (GLOBAL_CONST_TRUE == \old(GLOBAL_CONST_TRUE))) && (GLOBAL_CONST_FALSE == \old(GLOBAL_CONST_FALSE))) && (GLOBAL_CONST_FIVE == \old(GLOBAL_CONST_FIVE))) && (globalTrue == \old(globalTrue))) && (globalFalse == \old(globalFalse))) && (globalFive == \old(globalFive))) && (globalArgc == \old(globalArgc))) && (globalArgv == \old(globalArgv))) - ProcedureContractResult [Line: 1426]: Procedure Contract for printIntLine Derived contract for procedure printIntLine. Ensures: (((((((((((((((((stdin == \old(stdin)) && (stdout == \old(stdout))) && (stderr == \old(stderr))) && (__tzname == \old(__tzname))) && (__daylight == \old(__daylight))) && (__timezone == \old(__timezone))) && (tzname == \old(tzname))) && (daylight == \old(daylight))) && (timezone == \old(timezone))) && (GLOBAL_CONST_TRUE == \old(GLOBAL_CONST_TRUE))) && (GLOBAL_CONST_FALSE == \old(GLOBAL_CONST_FALSE))) && (GLOBAL_CONST_FIVE == \old(GLOBAL_CONST_FIVE))) && (globalTrue == \old(globalTrue))) && (globalFalse == \old(globalFalse))) && (globalFive == \old(globalFive))) && (globalArgc == \old(globalArgc))) && (globalArgv == \old(globalArgv))) - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.FloydHoareUtils.createProcedureContractResults(FloydHoareUtils.java:181) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-10-24 22:38:11,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null