./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 04:06:16,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 04:06:16,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 04:06:16,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 04:06:16,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 04:06:16,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 04:06:16,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 04:06:16,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 04:06:16,658 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 04:06:16,660 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 04:06:16,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 04:06:16,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 04:06:16,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 04:06:16,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 04:06:16,663 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 04:06:16,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 04:06:16,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 04:06:16,666 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 04:06:16,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 04:06:16,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 04:06:16,667 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 04:06:16,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 04:06:16,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 04:06:16,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 04:06:16,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 04:06:16,671 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 04:06:16,671 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 04:06:16,671 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 04:06:16,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 04:06:16,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 04:06:16,672 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 04:06:16,672 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 04:06:16,672 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 04:06:16,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 04:06:16,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:06:16,674 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 04:06:16,674 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 04:06:16,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 04:06:16,674 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 04:06:16,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 04:06:16,675 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 04:06:16,676 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 04:06:16,676 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 04:06:16,676 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 04:06:16,676 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f5db0b7f76a0d4c4c35217e21dd4a594e7457adb3230ac21a302fd5d7ee15c [2024-11-17 04:06:16,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 04:06:16,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 04:06:16,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 04:06:16,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 04:06:16,941 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 04:06:16,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2024-11-17 04:06:18,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 04:06:18,701 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 04:06:18,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-bftpd/bftpd_1.i [2024-11-17 04:06:18,715 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba81680e/dab8f47ce0834a6bb8e2686f634a51ed/FLAGbe03328b4 [2024-11-17 04:06:18,728 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cba81680e/dab8f47ce0834a6bb8e2686f634a51ed [2024-11-17 04:06:18,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 04:06:18,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 04:06:18,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 04:06:18,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 04:06:18,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 04:06:18,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:06:18" (1/1) ... [2024-11-17 04:06:18,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20aec207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:18, skipping insertion in model container [2024-11-17 04:06:18,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:06:18" (1/1) ... [2024-11-17 04:06:18,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 04:06:19,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:06:19,182 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 04:06:19,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:06:19,286 INFO L204 MainTranslator]: Completed translation [2024-11-17 04:06:19,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19 WrapperNode [2024-11-17 04:06:19,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 04:06:19,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 04:06:19,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 04:06:19,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 04:06:19,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,347 INFO L138 Inliner]: procedures = 168, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2024-11-17 04:06:19,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 04:06:19,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 04:06:19,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 04:06:19,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 04:06:19,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,381 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [9, 9, 6]. 38 percent of accesses are in the largest equivalence class. The 21 initializations are split as follows [9, 6, 6]. The 0 writes are split as follows [0, 0, 0]. [2024-11-17 04:06:19,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,396 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,402 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 04:06:19,411 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 04:06:19,411 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 04:06:19,411 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 04:06:19,412 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (1/1) ... [2024-11-17 04:06:19,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:06:19,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:06:19,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 04:06:19,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 04:06:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 04:06:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 04:06:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 04:06:19,551 INFO L130 BoogieDeclarations]: Found specification of procedure parse_input [2024-11-17 04:06:19,552 INFO L138 BoogieDeclarations]: Found implementation of procedure parse_input [2024-11-17 04:06:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 04:06:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 04:06:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 04:06:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 04:06:19,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 04:06:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 04:06:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 04:06:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 04:06:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 04:06:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 04:06:19,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 04:06:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 04:06:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 04:06:19,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 04:06:19,671 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 04:06:19,673 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 04:06:19,831 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-17 04:06:19,831 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 04:06:19,842 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 04:06:19,842 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 04:06:19,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:06:19 BoogieIcfgContainer [2024-11-17 04:06:19,843 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 04:06:19,845 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 04:06:19,845 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 04:06:19,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 04:06:19,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:06:18" (1/3) ... [2024-11-17 04:06:19,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127e517a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:06:19, skipping insertion in model container [2024-11-17 04:06:19,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:06:19" (2/3) ... [2024-11-17 04:06:19,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127e517a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:06:19, skipping insertion in model container [2024-11-17 04:06:19,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:06:19" (3/3) ... [2024-11-17 04:06:19,853 INFO L112 eAbstractionObserver]: Analyzing ICFG bftpd_1.i [2024-11-17 04:06:19,869 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 04:06:19,870 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 04:06:19,922 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 04:06:19,930 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;@348a1a8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 04:06:19,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 04:06:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 26 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:06:19,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 04:06:19,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:06:19,944 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:06:19,944 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 04:06:19,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:06:19,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1117846826, now seen corresponding path program 1 times [2024-11-17 04:06:19,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:06:19,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308908728] [2024-11-17 04:06:19,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:06:19,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:06:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:06:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:06:20,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:06:20,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308908728] [2024-11-17 04:06:20,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308908728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:06:20,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:06:20,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 04:06:20,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629903930] [2024-11-17 04:06:20,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:06:20,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 04:06:20,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:06:20,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 04:06:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 04:06:20,386 INFO L87 Difference]: Start difference. First operand has 31 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 26 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:06:20,463 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2024-11-17 04:06:20,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 04:06:20,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 04:06:20,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:06:20,471 INFO L225 Difference]: With dead ends: 67 [2024-11-17 04:06:20,472 INFO L226 Difference]: Without dead ends: 35 [2024-11-17 04:06:20,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 04:06:20,477 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:06:20,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 91 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:06:20,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-17 04:06:20,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2024-11-17 04:06:20,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 30 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:06:20,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2024-11-17 04:06:20,513 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2024-11-17 04:06:20,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:06:20,514 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2024-11-17 04:06:20,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-11-17 04:06:20,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 04:06:20,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:06:20,516 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:06:20,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 04:06:20,517 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 04:06:20,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:06:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash 588992403, now seen corresponding path program 1 times [2024-11-17 04:06:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:06:20,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177015491] [2024-11-17 04:06:20,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:06:20,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:06:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:06:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:06:20,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:06:20,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177015491] [2024-11-17 04:06:20,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177015491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:06:20,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341751532] [2024-11-17 04:06:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:06:20,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:06:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:06:20,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:06:20,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 04:06:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:06:20,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 04:06:20,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:06:20,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:06:20,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:06:20,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341751532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:06:20,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:06:20,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 04:06:20,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416491223] [2024-11-17 04:06:20,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:06:20,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:06:20,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:06:20,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:06:20,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:06:20,913 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:20,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:06:20,996 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2024-11-17 04:06:20,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:06:20,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-17 04:06:20,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:06:20,998 INFO L225 Difference]: With dead ends: 35 [2024-11-17 04:06:20,998 INFO L226 Difference]: Without dead ends: 34 [2024-11-17 04:06:21,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:06:21,001 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 6 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:06:21,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 127 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:06:21,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-17 04:06:21,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2024-11-17 04:06:21,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 04:06:21,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2024-11-17 04:06:21,009 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 16 [2024-11-17 04:06:21,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:06:21,010 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2024-11-17 04:06:21,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:21,010 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2024-11-17 04:06:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-17 04:06:21,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:06:21,011 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:06:21,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 04:06:21,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:06:21,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 04:06:21,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:06:21,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1078895281, now seen corresponding path program 1 times [2024-11-17 04:06:21,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:06:21,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720860484] [2024-11-17 04:06:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:06:21,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:06:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:06:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 04:06:21,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:06:21,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720860484] [2024-11-17 04:06:21,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720860484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:06:21,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:06:21,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 04:06:21,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457837604] [2024-11-17 04:06:21,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:06:21,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 04:06:21,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:06:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 04:06:21,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 04:06:21,291 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:21,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:06:21,318 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-11-17 04:06:21,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 04:06:21,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-17 04:06:21,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:06:21,319 INFO L225 Difference]: With dead ends: 33 [2024-11-17 04:06:21,319 INFO L226 Difference]: Without dead ends: 0 [2024-11-17 04:06:21,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 04:06:21,322 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 04:06:21,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 73 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 04:06:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-17 04:06:21,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-17 04:06:21,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-17 04:06:21,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-17 04:06:21,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:06:21,326 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-17 04:06:21,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:06:21,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-17 04:06:21,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-17 04:06:21,329 INFO L782 garLoopResultBuilder]: Registering result SAFE for location parse_inputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 04:06:21,330 INFO L782 garLoopResultBuilder]: Registering result SAFE for location parse_inputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 04:06:21,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 04:06:21,333 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-17 04:06:21,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-17 04:06:21,357 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 04:06:21,372 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-17 04:06:21,373 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-17 04:06:21,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-17 04:06:21,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_1 [2024-11-17 04:06:21,374 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_2 [2024-11-17 04:06:21,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 04:06:21 BoogieIcfgContainer [2024-11-17 04:06:21,379 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 04:06:21,380 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 04:06:21,380 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 04:06:21,381 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 04:06:21,381 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:06:19" (3/4) ... [2024-11-17 04:06:21,383 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 04:06:21,387 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure parse_input [2024-11-17 04:06:21,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-17 04:06:21,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-17 04:06:21,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 04:06:21,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 04:06:21,393 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 04:06:21,494 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 04:06:21,494 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 04:06:21,494 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 04:06:21,495 INFO L158 Benchmark]: Toolchain (without parser) took 2763.25ms. Allocated memory is still 176.2MB. Free memory was 101.4MB in the beginning and 55.5MB in the end (delta: 45.9MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,495 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 176.2MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 04:06:21,495 INFO L158 Benchmark]: CACSL2BoogieTranslator took 554.28ms. Allocated memory is still 176.2MB. Free memory was 101.1MB in the beginning and 78.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,496 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.17ms. Allocated memory is still 176.2MB. Free memory was 78.8MB in the beginning and 76.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,497 INFO L158 Benchmark]: Boogie Preprocessor took 62.44ms. Allocated memory is still 176.2MB. Free memory was 76.8MB in the beginning and 74.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,497 INFO L158 Benchmark]: IcfgBuilder took 432.27ms. Allocated memory is still 176.2MB. Free memory was 74.4MB in the beginning and 131.0MB in the end (delta: -56.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,497 INFO L158 Benchmark]: TraceAbstraction took 1534.19ms. Allocated memory is still 176.2MB. Free memory was 129.8MB in the beginning and 60.6MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,498 INFO L158 Benchmark]: Witness Printer took 114.19ms. Allocated memory is still 176.2MB. Free memory was 60.6MB in the beginning and 55.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 04:06:21,500 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 176.2MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 554.28ms. Allocated memory is still 176.2MB. Free memory was 101.1MB in the beginning and 78.8MB in the end (delta: 22.4MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.17ms. Allocated memory is still 176.2MB. Free memory was 78.8MB in the beginning and 76.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.44ms. Allocated memory is still 176.2MB. Free memory was 76.8MB in the beginning and 74.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 432.27ms. Allocated memory is still 176.2MB. Free memory was 74.4MB in the beginning and 131.0MB in the end (delta: -56.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1534.19ms. Allocated memory is still 176.2MB. Free memory was 129.8MB in the beginning and 60.6MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 114.19ms. Allocated memory is still 176.2MB. Free memory was 60.6MB in the beginning and 55.5MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. 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: ~unnamed3~0~STATE_1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed3~0~STATE_2 * 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: 692]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 692]: 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 2 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 291 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 86 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=1, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 11/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 692]: Location Invariant Derived location invariant: null - ProcedureContractResult [Line: 691]: Procedure Contract for parse_input Derived contract for procedure parse_input. Ensures: ((global == \old(global)) && (commands == \old(commands))) RESULT: Ultimate proved your program to be correct! [2024-11-17 04:06:21,528 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: TRUE