./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe018_rmo.opt.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/pthread-wmm/safe018_rmo.opt.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 2ca99869d70e44347287c08401504e0aa96889a44ad1dcfb8d04f6de3849ab47 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:41:43,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:41:43,304 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:41:43,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:41:43,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:41:43,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:41:43,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:41:43,339 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:41:43,340 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:41:43,341 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:41:43,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:41:43,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:41:43,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:41:43,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:41:43,343 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:41:43,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:41:43,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:41:43,348 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:41:43,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:41:43,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:41:43,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:41:43,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:41:43,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:41:43,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:41:43,351 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:41:43,351 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:41:43,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:41:43,351 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:41:43,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:41:43,352 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:41:43,367 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:41:43,368 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:41:43,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:41:43,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:41:43,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:41:43,369 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:41:43,369 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:41:43,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:41:43,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:41:43,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:41:43,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:41:43,370 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:41:43,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:41:43,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:41:43,371 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ca99869d70e44347287c08401504e0aa96889a44ad1dcfb8d04f6de3849ab47 [2024-11-17 07:41:43,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:41:43,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:41:43,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:41:43,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:41:43,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:41:43,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_rmo.opt.i [2024-11-17 07:41:45,004 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:41:45,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:41:45,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_rmo.opt.i [2024-11-17 07:41:45,220 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e3011bb/08d83bf8a10d42568dbe74e9bf25d5ed/FLAGb95fb1012 [2024-11-17 07:41:45,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e3011bb/08d83bf8a10d42568dbe74e9bf25d5ed [2024-11-17 07:41:45,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:41:45,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:41:45,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:41:45,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:41:45,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:41:45,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541c38c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45, skipping insertion in model container [2024-11-17 07:41:45,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:41:45,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:41:45,689 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:41:45,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:41:45,799 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:41:45,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45 WrapperNode [2024-11-17 07:41:45,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:41:45,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:41:45,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:41:45,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:41:45,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,861 INFO L138 Inliner]: procedures = 175, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2024-11-17 07:41:45,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:41:45,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:41:45,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:41:45,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:41:45,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,905 INFO L175 MemorySlicer]: Split 23 memory accesses to 2 slices as follows [2, 21]. 91 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 8 writes are split as follows [0, 8]. [2024-11-17 07:41:45,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,912 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,918 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:41:45,919 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:41:45,919 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:41:45,919 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:41:45,920 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (1/1) ... [2024-11-17 07:41:45,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:41:45,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:41:45,953 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 07:41:45,958 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 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:41:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 07:41:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 07:41:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 07:41:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 07:41:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 07:41:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 07:41:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:41:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:41:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:41:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:41:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:41:45,995 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:41:46,123 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:41:46,125 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:41:46,520 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:41:46,521 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:41:46,867 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:41:46,867 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:41:46,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:41:46 BoogieIcfgContainer [2024-11-17 07:41:46,868 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:41:46,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:41:46,871 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:41:46,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:41:46,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:41:45" (1/3) ... [2024-11-17 07:41:46,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5876bd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:41:46, skipping insertion in model container [2024-11-17 07:41:46,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:41:45" (2/3) ... [2024-11-17 07:41:46,875 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5876bd2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:41:46, skipping insertion in model container [2024-11-17 07:41:46,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:41:46" (3/3) ... [2024-11-17 07:41:46,877 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_rmo.opt.i [2024-11-17 07:41:46,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:41:46,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-17 07:41:46,891 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:41:46,952 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 07:41:46,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2024-11-17 07:41:47,016 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2024-11-17 07:41:47,016 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:41:47,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 0/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 84 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-17 07:41:47,020 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2024-11-17 07:41:47,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2024-11-17 07:41:47,032 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:41:47,038 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;@581c52be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:41:47,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-11-17 07:41:47,047 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:41:47,047 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-17 07:41:47,048 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:41:47,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:41:47,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:41:47,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-17 07:41:47,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:41:47,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1725769677, now seen corresponding path program 1 times [2024-11-17 07:41:47,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:41:47,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296869096] [2024-11-17 07:41:47,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:41:47,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:41:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:41:47,381 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 07:41:47,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:41:47,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296869096] [2024-11-17 07:41:47,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296869096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:41:47,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:41:47,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:41:47,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103059572] [2024-11-17 07:41:47,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:41:47,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:41:47,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:41:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:41:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:41:47,418 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-17 07:41:47,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 07:41:47,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:41:47,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-17 07:41:47,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:41:48,454 INFO L124 PetriNetUnfolderBase]: 5221/7533 cut-off events. [2024-11-17 07:41:48,454 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-11-17 07:41:48,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15150 conditions, 7533 events. 5221/7533 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 40418 event pairs, 1783 based on Foata normal form. 0/6386 useless extension candidates. Maximal degree in co-relation 15139. Up to 6433 conditions per place. [2024-11-17 07:41:48,500 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 49 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2024-11-17 07:41:48,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 233 flow [2024-11-17 07:41:48,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:41:48,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:41:48,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-17 07:41:48,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6754385964912281 [2024-11-17 07:41:48,512 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 77 transitions. [2024-11-17 07:41:48,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 233 flow [2024-11-17 07:41:48,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:41:48,519 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2024-11-17 07:41:48,521 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=45, PETRI_TRANSITIONS=38} [2024-11-17 07:41:48,523 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2024-11-17 07:41:48,524 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2024-11-17 07:41:48,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 07:41:48,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:41:48,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:41:48,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:41:48,525 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-17 07:41:48,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:41:48,526 INFO L85 PathProgramCache]: Analyzing trace with hash -494809344, now seen corresponding path program 1 times [2024-11-17 07:41:48,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:41:48,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853357877] [2024-11-17 07:41:48,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:41:48,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:41:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:41:48,659 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 07:41:48,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:41:48,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853357877] [2024-11-17 07:41:48,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853357877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:41:48,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:41:48,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:41:48,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514545689] [2024-11-17 07:41:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:41:48,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:41:48,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:41:48,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:41:48,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:41:48,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-17 07:41:48,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 07:41:48,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:41:48,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-17 07:41:48,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:41:49,372 INFO L124 PetriNetUnfolderBase]: 4030/5816 cut-off events. [2024-11-17 07:41:49,373 INFO L125 PetriNetUnfolderBase]: For 406/406 co-relation queries the response was YES. [2024-11-17 07:41:49,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13268 conditions, 5816 events. 4030/5816 cut-off events. For 406/406 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 30299 event pairs, 1310 based on Foata normal form. 0/5321 useless extension candidates. Maximal degree in co-relation 13257. Up to 4715 conditions per place. [2024-11-17 07:41:49,402 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 46 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2024-11-17 07:41:49,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 53 transitions, 240 flow [2024-11-17 07:41:49,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:41:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:41:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2024-11-17 07:41:49,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2024-11-17 07:41:49,406 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 77 transitions. [2024-11-17 07:41:49,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 53 transitions, 240 flow [2024-11-17 07:41:49,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:41:49,410 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2024-11-17 07:41:49,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2024-11-17 07:41:49,411 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2024-11-17 07:41:49,411 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2024-11-17 07:41:49,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 07:41:49,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:41:49,412 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:41:49,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:41:49,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-17 07:41:49,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:41:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -494809343, now seen corresponding path program 1 times [2024-11-17 07:41:49,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:41:49,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351553535] [2024-11-17 07:41:49,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:41:49,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:41:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:41:49,503 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 07:41:49,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:41:49,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351553535] [2024-11-17 07:41:49,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351553535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:41:49,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:41:49,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:41:49,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590977448] [2024-11-17 07:41:49,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:41:49,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:41:49,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:41:49,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:41:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:41:49,504 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-17 07:41:49,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 07:41:49,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:41:49,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-17 07:41:49,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:41:50,202 INFO L124 PetriNetUnfolderBase]: 3193/4621 cut-off events. [2024-11-17 07:41:50,203 INFO L125 PetriNetUnfolderBase]: For 908/908 co-relation queries the response was YES. [2024-11-17 07:41:50,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10387 conditions, 4621 events. 3193/4621 cut-off events. For 908/908 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 23359 event pairs, 791 based on Foata normal form. 0/4526 useless extension candidates. Maximal degree in co-relation 10375. Up to 1936 conditions per place. [2024-11-17 07:41:50,234 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 62 selfloop transitions, 7 changer transitions 3/75 dead transitions. [2024-11-17 07:41:50,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 75 transitions, 340 flow [2024-11-17 07:41:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:41:50,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:41:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-11-17 07:41:50,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6513157894736842 [2024-11-17 07:41:50,236 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 4 states and 99 transitions. [2024-11-17 07:41:50,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 75 transitions, 340 flow [2024-11-17 07:41:50,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:41:50,238 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 125 flow [2024-11-17 07:41:50,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=125, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2024-11-17 07:41:50,240 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2024-11-17 07:41:50,241 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 125 flow [2024-11-17 07:41:50,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 07:41:50,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:41:50,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:41:50,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:41:50,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-11-17 07:41:50,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:41:50,242 INFO L85 PathProgramCache]: Analyzing trace with hash 948056542, now seen corresponding path program 1 times [2024-11-17 07:41:50,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:41:50,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680388740] [2024-11-17 07:41:50,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:41:50,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:41:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:41:50,414 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 07:41:50,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:41:50,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680388740] [2024-11-17 07:41:50,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680388740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:41:50,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:41:50,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:41:50,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589927232] [2024-11-17 07:41:50,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:41:50,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:41:50,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:41:50,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:41:50,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:41:50,419 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2024-11-17 07:41:50,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 07:41:50,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:41:50,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2024-11-17 07:41:50,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:41:50,952 INFO L124 PetriNetUnfolderBase]: 2877/4165 cut-off events. [2024-11-17 07:41:50,952 INFO L125 PetriNetUnfolderBase]: For 2106/2106 co-relation queries the response was YES. [2024-11-17 07:41:50,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10236 conditions, 4165 events. 2877/4165 cut-off events. For 2106/2106 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 21250 event pairs, 721 based on Foata normal form. 84/4238 useless extension candidates. Maximal degree in co-relation 10223. Up to 1936 conditions per place. [2024-11-17 07:41:50,960 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2024-11-17 07:41:50,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 69 transitions, 319 flow [2024-11-17 07:41:50,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:41:50,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:41:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2024-11-17 07:41:50,961 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5210526315789473 [2024-11-17 07:41:50,961 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 125 flow. Second operand 5 states and 99 transitions. [2024-11-17 07:41:50,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 69 transitions, 319 flow [2024-11-17 07:41:50,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 295 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-17 07:41:50,966 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2024-11-17 07:41:50,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2024-11-17 07:41:50,967 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2024-11-17 07:41:50,968 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2024-11-17 07:41:50,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 07:41:50,970 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2024-11-17 07:41:50,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2024-11-17 07:41:50,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2024-11-17 07:41:50,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2024-11-17 07:41:50,972 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2024-11-17 07:41:50,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2024-11-17 07:41:50,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2024-11-17 07:41:50,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2024-11-17 07:41:50,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2024-11-17 07:41:50,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2024-11-17 07:41:50,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2024-11-17 07:41:50,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2024-11-17 07:41:50,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2024-11-17 07:41:50,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2024-11-17 07:41:50,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2024-11-17 07:41:50,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:41:50,974 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-17 07:41:50,978 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:41:50,978 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:41:50,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:41:50 BasicIcfg [2024-11-17 07:41:50,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:41:50,984 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:41:50,984 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:41:50,984 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:41:50,985 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:41:46" (3/4) ... [2024-11-17 07:41:50,986 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:41:50,988 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-17 07:41:50,988 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-17 07:41:50,988 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-17 07:41:50,992 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-11-17 07:41:50,992 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-17 07:41:50,993 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 07:41:50,993 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 07:41:51,077 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:41:51,078 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:41:51,078 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:41:51,078 INFO L158 Benchmark]: Toolchain (without parser) took 5840.49ms. Allocated memory was 180.4MB in the beginning and 769.7MB in the end (delta: 589.3MB). Free memory was 121.7MB in the beginning and 546.6MB in the end (delta: -424.9MB). Peak memory consumption was 167.2MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,078 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:41:51,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.56ms. Allocated memory is still 180.4MB. Free memory was 121.3MB in the beginning and 93.5MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,079 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.13ms. Allocated memory is still 180.4MB. Free memory was 93.5MB in the beginning and 91.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,079 INFO L158 Benchmark]: Boogie Preprocessor took 55.99ms. Allocated memory is still 180.4MB. Free memory was 91.0MB in the beginning and 87.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,079 INFO L158 Benchmark]: IcfgBuilder took 949.36ms. Allocated memory was 180.4MB in the beginning and 304.1MB in the end (delta: 123.7MB). Free memory was 86.5MB in the beginning and 213.4MB in the end (delta: -126.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,079 INFO L158 Benchmark]: TraceAbstraction took 4112.17ms. Allocated memory was 304.1MB in the beginning and 769.7MB in the end (delta: 465.6MB). Free memory was 212.4MB in the beginning and 551.8MB in the end (delta: -339.4MB). Peak memory consumption was 406.1MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,079 INFO L158 Benchmark]: Witness Printer took 93.94ms. Allocated memory is still 769.7MB. Free memory was 551.8MB in the beginning and 546.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 07:41:51,081 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 145.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.56ms. Allocated memory is still 180.4MB. Free memory was 121.3MB in the beginning and 93.5MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.13ms. Allocated memory is still 180.4MB. Free memory was 93.5MB in the beginning and 91.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.99ms. Allocated memory is still 180.4MB. Free memory was 91.0MB in the beginning and 87.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 949.36ms. Allocated memory was 180.4MB in the beginning and 304.1MB in the end (delta: 123.7MB). Free memory was 86.5MB in the beginning and 213.4MB in the end (delta: -126.9MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4112.17ms. Allocated memory was 304.1MB in the beginning and 769.7MB in the end (delta: 465.6MB). Free memory was 212.4MB in the beginning and 551.8MB in the end (delta: -339.4MB). Peak memory consumption was 406.1MB. Max. memory is 16.1GB. * Witness Printer took 93.94ms. Allocated memory is still 769.7MB. Free memory was 551.8MB in the beginning and 546.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 782]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 799]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 834]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 834]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 315 IncrementalHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 0 mSDtfsCounter, 315 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:41:51,106 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