./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 14d20b200dda38e95ec4ea5c7128c00d20347c5bcda51cecce271855ce0b9ab5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:00:04,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:00:04,428 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:00:04,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:00:04,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:00:04,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:00:04,448 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:00:04,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:00:04,448 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:00:04,448 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:00:04,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:00:04,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:00:04,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:00:04,448 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:00:04,448 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:00:04,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:00:04,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:00:04,450 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:00:04,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:00:04,450 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 14d20b200dda38e95ec4ea5c7128c00d20347c5bcda51cecce271855ce0b9ab5 [2025-02-08 14:00:04,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:00:04,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:00:04,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:00:04,699 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:00:04,699 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:00:04,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i [2025-02-08 14:00:06,023 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d678c5094/e06a472d08dd45fdaf76dc4cde663ccb/FLAG2d0baa1ca [2025-02-08 14:00:06,397 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:00:06,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i [2025-02-08 14:00:06,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d678c5094/e06a472d08dd45fdaf76dc4cde663ccb/FLAG2d0baa1ca [2025-02-08 14:00:06,620 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d678c5094/e06a472d08dd45fdaf76dc4cde663ccb [2025-02-08 14:00:06,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:00:06,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:00:06,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:00:06,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:00:06,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:00:06,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:00:06" (1/1) ... [2025-02-08 14:00:06,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e7ef7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:06, skipping insertion in model container [2025-02-08 14:00:06,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:00:06" (1/1) ... [2025-02-08 14:00:06,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:00:06,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:00:06,986 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:00:07,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:00:07,071 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:00:07,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07 WrapperNode [2025-02-08 14:00:07,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:00:07,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:00:07,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:00:07,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:00:07,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,110 INFO L138 Inliner]: procedures = 175, calls = 64, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2025-02-08 14:00:07,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:00:07,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:00:07,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:00:07,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:00:07,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,142 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 7 writes are split as follows [0, 7]. [2025-02-08 14:00:07,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,148 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:00:07,154 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:00:07,155 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:00:07,155 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:00:07,155 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (1/1) ... [2025-02-08 14:00:07,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:00:07,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:00:07,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:00:07,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 14:00:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 14:00:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 14:00:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:00:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:00:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:00:07,210 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:00:07,340 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:00:07,342 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:00:07,702 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:00:07,703 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:00:07,990 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:00:07,991 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:00:07,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:00:07 BoogieIcfgContainer [2025-02-08 14:00:07,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:00:07,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:00:07,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:00:07,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:00:07,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:00:06" (1/3) ... [2025-02-08 14:00:07,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@911ac47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:00:07, skipping insertion in model container [2025-02-08 14:00:07,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:00:07" (2/3) ... [2025-02-08 14:00:07,997 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@911ac47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:00:07, skipping insertion in model container [2025-02-08 14:00:07,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:00:07" (3/3) ... [2025-02-08 14:00:07,998 INFO L128 eAbstractionObserver]: Analyzing ICFG rfi009_power.oepc.i [2025-02-08 14:00:08,008 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:00:08,011 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rfi009_power.oepc.i that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-08 14:00:08,011 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:00:08,100 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:00:08,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 39 transitions, 90 flow [2025-02-08 14:00:08,147 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2025-02-08 14:00:08,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:00:08,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 92 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-08 14:00:08,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 39 transitions, 90 flow [2025-02-08 14:00:08,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 81 flow [2025-02-08 14:00:08,158 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:00:08,167 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;@25aa8fe1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:00:08,167 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-08 14:00:08,176 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:00:08,177 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-08 14:00:08,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:00:08,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:00:08,177 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:00:08,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 14:00:08,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:00:08,182 INFO L85 PathProgramCache]: Analyzing trace with hash -620257398, now seen corresponding path program 1 times [2025-02-08 14:00:08,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:00:08,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732653146] [2025-02-08 14:00:08,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:00:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:00:08,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:00:08,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:00:08,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:00:08,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:00:08,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:00:08,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:00:08,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732653146] [2025-02-08 14:00:08,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732653146] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:00:08,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:00:08,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:00:08,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143782769] [2025-02-08 14:00:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:00:08,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:00:08,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:00:08,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:00:08,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:00:08,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-08 14:00:08,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 81 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) [2025-02-08 14:00:08,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:00:08,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-08 14:00:08,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:00:09,597 INFO L124 PetriNetUnfolderBase]: 5920/8520 cut-off events. [2025-02-08 14:00:09,598 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-02-08 14:00:09,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17150 conditions, 8520 events. 5920/8520 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 45785 event pairs, 2044 based on Foata normal form. 0/7316 useless extension candidates. Maximal degree in co-relation 17139. Up to 7103 conditions per place. [2025-02-08 14:00:09,651 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 51 selfloop transitions, 4 changer transitions 0/58 dead transitions. [2025-02-08 14:00:09,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 58 transitions, 241 flow [2025-02-08 14:00:09,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:00:09,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:00:09,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2025-02-08 14:00:09,662 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6752136752136753 [2025-02-08 14:00:09,662 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 81 flow. Second operand 3 states and 79 transitions. [2025-02-08 14:00:09,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 58 transitions, 241 flow [2025-02-08 14:00:09,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 236 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:00:09,672 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 114 flow [2025-02-08 14:00:09,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2025-02-08 14:00:09,676 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2025-02-08 14:00:09,677 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 114 flow [2025-02-08 14:00:09,677 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) [2025-02-08 14:00:09,678 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:00:09,678 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:00:09,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:00:09,679 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 14:00:09,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:00:09,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1247006153, now seen corresponding path program 1 times [2025-02-08 14:00:09,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:00:09,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120339279] [2025-02-08 14:00:09,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:00:09,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:00:09,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:00:09,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:00:09,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:00:09,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:00:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:00:09,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:00:09,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120339279] [2025-02-08 14:00:09,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120339279] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:00:09,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:00:09,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:00:09,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146631608] [2025-02-08 14:00:09,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:00:09,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:00:09,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:00:09,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:00:09,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:00:09,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-08 14:00:09,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-02-08 14:00:09,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:00:09,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-08 14:00:09,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:00:11,266 INFO L124 PetriNetUnfolderBase]: 4663/6709 cut-off events. [2025-02-08 14:00:11,266 INFO L125 PetriNetUnfolderBase]: For 441/441 co-relation queries the response was YES. [2025-02-08 14:00:11,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15242 conditions, 6709 events. 4663/6709 cut-off events. For 441/441 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 34935 event pairs, 1557 based on Foata normal form. 0/6185 useless extension candidates. Maximal degree in co-relation 15231. Up to 5291 conditions per place. [2025-02-08 14:00:11,293 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 48 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2025-02-08 14:00:11,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 248 flow [2025-02-08 14:00:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:00:11,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:00:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 79 transitions. [2025-02-08 14:00:11,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5064102564102564 [2025-02-08 14:00:11,295 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 114 flow. Second operand 4 states and 79 transitions. [2025-02-08 14:00:11,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 248 flow [2025-02-08 14:00:11,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 55 transitions, 244 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:00:11,297 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 106 flow [2025-02-08 14:00:11,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2025-02-08 14:00:11,297 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-02-08 14:00:11,297 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 106 flow [2025-02-08 14:00:11,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-02-08 14:00:11,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:00:11,298 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:00:11,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:00:11,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 14:00:11,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:00:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1247006154, now seen corresponding path program 1 times [2025-02-08 14:00:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:00:11,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122865218] [2025-02-08 14:00:11,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:00:11,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:00:11,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:00:11,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:00:11,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:00:11,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:00:11,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:00:11,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:00:11,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122865218] [2025-02-08 14:00:11,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122865218] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:00:11,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:00:11,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:00:11,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777830394] [2025-02-08 14:00:11,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:00:11,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:00:11,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:00:11,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:00:11,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:00:11,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-08 14:00:11,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-02-08 14:00:11,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:00:11,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-08 14:00:11,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:00:12,025 INFO L124 PetriNetUnfolderBase]: 3760/5420 cut-off events. [2025-02-08 14:00:12,025 INFO L125 PetriNetUnfolderBase]: For 1017/1017 co-relation queries the response was YES. [2025-02-08 14:00:12,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12145 conditions, 5420 events. 3760/5420 cut-off events. For 1017/1017 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 27380 event pairs, 1010 based on Foata normal form. 0/5324 useless extension candidates. Maximal degree in co-relation 12133. Up to 2310 conditions per place. [2025-02-08 14:00:12,051 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 65 selfloop transitions, 7 changer transitions 3/78 dead transitions. [2025-02-08 14:00:12,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 352 flow [2025-02-08 14:00:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:00:12,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:00:12,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-02-08 14:00:12,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6538461538461539 [2025-02-08 14:00:12,052 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 106 flow. Second operand 4 states and 102 transitions. [2025-02-08 14:00:12,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 352 flow [2025-02-08 14:00:12,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 78 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:00:12,054 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 127 flow [2025-02-08 14:00:12,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2025-02-08 14:00:12,055 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2025-02-08 14:00:12,055 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 127 flow [2025-02-08 14:00:12,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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) [2025-02-08 14:00:12,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:00:12,055 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:00:12,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:00:12,055 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 14:00:12,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:00:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2118485469, now seen corresponding path program 1 times [2025-02-08 14:00:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:00:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400128278] [2025-02-08 14:00:12,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:00:12,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:00:12,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:00:12,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:00:12,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:00:12,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:00:12,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:00:12,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:00:12,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400128278] [2025-02-08 14:00:12,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400128278] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:00:12,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:00:12,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:00:12,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000957823] [2025-02-08 14:00:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:00:12,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:00:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:00:12,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:00:12,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:00:12,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 39 [2025-02-08 14:00:12,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 127 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 14:00:12,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:00:12,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 39 [2025-02-08 14:00:12,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:00:13,140 INFO L124 PetriNetUnfolderBase]: 3444/4964 cut-off events. [2025-02-08 14:00:13,141 INFO L125 PetriNetUnfolderBase]: For 2370/2370 co-relation queries the response was YES. [2025-02-08 14:00:13,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12103 conditions, 4964 events. 3444/4964 cut-off events. For 2370/2370 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 25323 event pairs, 940 based on Foata normal form. 84/5036 useless extension candidates. Maximal degree in co-relation 12090. Up to 2310 conditions per place. [2025-02-08 14:00:13,153 INFO L140 encePairwiseOnDemand]: 32/39 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-02-08 14:00:13,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 72 transitions, 331 flow [2025-02-08 14:00:13,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:00:13,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:00:13,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 102 transitions. [2025-02-08 14:00:13,155 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5230769230769231 [2025-02-08 14:00:13,155 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 127 flow. Second operand 5 states and 102 transitions. [2025-02-08 14:00:13,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 72 transitions, 331 flow [2025-02-08 14:00:13,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 72 transitions, 307 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-02-08 14:00:13,162 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2025-02-08 14:00:13,162 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2025-02-08 14:00:13,162 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2025-02-08 14:00:13,163 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2025-02-08 14:00:13,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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) [2025-02-08 14:00:13,165 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-08 14:00:13,166 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-08 14:00:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-08 14:00:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-08 14:00:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-08 14:00:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-08 14:00:13,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-08 14:00:13,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:00:13,167 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 14:00:13,172 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:00:13,173 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:00:13,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:00:13 BasicIcfg [2025-02-08 14:00:13,179 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:00:13,180 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:00:13,180 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:00:13,180 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:00:13,182 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:00:07" (3/4) ... [2025-02-08 14:00:13,183 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:00:13,185 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 14:00:13,185 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 14:00:13,186 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 14:00:13,189 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2025-02-08 14:00:13,190 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-08 14:00:13,190 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 14:00:13,190 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 14:00:13,247 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:00:13,248 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:00:13,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:00:13,249 INFO L158 Benchmark]: Toolchain (without parser) took 6626.41ms. Allocated memory was 142.6MB in the beginning and 914.4MB in the end (delta: 771.8MB). Free memory was 110.1MB in the beginning and 647.9MB in the end (delta: -537.8MB). Peak memory consumption was 230.7MB. Max. memory is 16.1GB. [2025-02-08 14:00:13,250 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:13,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.76ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 85.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 14:00:13,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.48ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 82.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:13,251 INFO L158 Benchmark]: Boogie Preprocessor took 43.44ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 79.0MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:00:13,252 INFO L158 Benchmark]: IcfgBuilder took 836.85ms. Allocated memory is still 142.6MB. Free memory was 79.0MB in the beginning and 46.3MB in the end (delta: 32.7MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2025-02-08 14:00:13,252 INFO L158 Benchmark]: TraceAbstraction took 5186.64ms. Allocated memory was 142.6MB in the beginning and 914.4MB in the end (delta: 771.8MB). Free memory was 45.5MB in the beginning and 652.1MB in the end (delta: -606.6MB). Peak memory consumption was 517.9MB. Max. memory is 16.1GB. [2025-02-08 14:00:13,252 INFO L158 Benchmark]: Witness Printer took 68.28ms. Allocated memory is still 914.4MB. Free memory was 652.1MB in the beginning and 647.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:00:13,253 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.76ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 85.1MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.48ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 82.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.44ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 79.0MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 836.85ms. Allocated memory is still 142.6MB. Free memory was 79.0MB in the beginning and 46.3MB in the end (delta: 32.7MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5186.64ms. Allocated memory was 142.6MB in the beginning and 914.4MB in the end (delta: 771.8MB). Free memory was 45.5MB in the beginning and 652.1MB in the end (delta: -606.6MB). Peak memory consumption was 517.9MB. Max. memory is 16.1GB. * Witness Printer took 68.28ms. Allocated memory is still 914.4MB. Free memory was 652.1MB in the beginning and 647.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 835]: 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, 70 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: 5.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 324 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=127occurred 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, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:00:13,270 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE