./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/safe009_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 9047d35108a9c07c04b519cba211a741bb80887623b2a85c45105c17ca835121 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:15:03,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:15:03,573 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:15:03,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:15:03,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:15:03,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:15:03,601 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:15:03,601 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:15:03,602 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:15:03,602 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:15:03,602 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:15:03,602 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:15:03,603 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:15:03,603 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:15:03,603 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:15:03,603 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:15:03,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:15:03,603 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:15:03,603 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:15:03,604 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:15:03,605 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:15:03,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:15:03,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:15:03,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:15:03,606 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/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 -> 9047d35108a9c07c04b519cba211a741bb80887623b2a85c45105c17ca835121 [2025-03-04 15:15:03,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:15:03,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:15:03,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:15:03,839 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:15:03,839 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:15:03,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i [2025-03-04 15:15:04,995 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0800aa423/cd6483271a4a4c31b324a0e729d234d3/FLAG394325261 [2025-03-04 15:15:05,282 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:15:05,285 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_rmo.opt.i [2025-03-04 15:15:05,301 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0800aa423/cd6483271a4a4c31b324a0e729d234d3/FLAG394325261 [2025-03-04 15:15:05,567 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0800aa423/cd6483271a4a4c31b324a0e729d234d3 [2025-03-04 15:15:05,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:15:05,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:15:05,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:15:05,571 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:15:05,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:15:05,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:05,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503818bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05, skipping insertion in model container [2025-03-04 15:15:05,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:05,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:15:05,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:15:05,916 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:15:05,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:15:05,997 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:15:05,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05 WrapperNode [2025-03-04 15:15:05,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:15:05,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:15:05,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:15:05,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:15:06,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,032 INFO L138 Inliner]: procedures = 175, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 126 [2025-03-04 15:15:06,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:15:06,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:15:06,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:15:06,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:15:06,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,057 INFO L175 MemorySlicer]: Split 19 memory accesses to 2 slices as follows [2, 17]. 89 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]. [2025-03-04 15:15:06,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,057 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,064 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,066 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,074 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:15:06,076 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:15:06,076 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:15:06,076 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:15:06,077 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (1/1) ... [2025-03-04 15:15:06,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:15:06,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:15:06,109 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) [2025-03-04 15:15:06,115 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 [2025-03-04 15:15:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:15:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:15:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:15:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:15:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 15:15:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:15:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 15:15:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 15:15:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 15:15:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 15:15:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 15:15:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 15:15:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:15:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:15:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 15:15:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:15:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:15:06,135 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:15:06,255 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:15:06,256 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:15:06,620 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:15:06,620 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:15:06,864 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:15:06,864 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:15:06,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:15:06 BoogieIcfgContainer [2025-03-04 15:15:06,865 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:15:06,866 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:15:06,866 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:15:06,870 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:15:06,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:15:05" (1/3) ... [2025-03-04 15:15:06,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa258b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:15:06, skipping insertion in model container [2025-03-04 15:15:06,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:15:05" (2/3) ... [2025-03-04 15:15:06,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50aa258b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:15:06, skipping insertion in model container [2025-03-04 15:15:06,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:15:06" (3/3) ... [2025-03-04 15:15:06,873 INFO L128 eAbstractionObserver]: Analyzing ICFG safe009_rmo.opt.i [2025-03-04 15:15:06,884 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:15:06,886 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe009_rmo.opt.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-03-04 15:15:06,886 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:15:06,942 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 15:15:06,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2025-03-04 15:15:06,998 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2025-03-04 15:15:07,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:15:07,004 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 7. Compared 89 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. [2025-03-04 15:15:07,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2025-03-04 15:15:07,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2025-03-04 15:15:07,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:15:07,024 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;@7ec7c5e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:15:07,025 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-03-04 15:15:07,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:15:07,033 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-03-04 15:15:07,033 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:15:07,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:15:07,034 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:15:07,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-04 15:15:07,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:15:07,040 INFO L85 PathProgramCache]: Analyzing trace with hash -999504867, now seen corresponding path program 1 times [2025-03-04 15:15:07,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:15:07,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456252766] [2025-03-04 15:15:07,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:15:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:15:07,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:15:07,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:15:07,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:15:07,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:15:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:15:07,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:15:07,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456252766] [2025-03-04 15:15:07,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456252766] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:15:07,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:15:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:15:07,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515513868] [2025-03-04 15:15:07,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:15:07,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:15:07,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:15:07,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:15:07,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:15:07,386 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-03-04 15:15:07,388 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) [2025-03-04 15:15:07,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:15:07,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-03-04 15:15:07,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:15:08,344 INFO L124 PetriNetUnfolderBase]: 5243/7565 cut-off events. [2025-03-04 15:15:08,344 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-03-04 15:15:08,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15228 conditions, 7565 events. 5243/7565 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 40334 event pairs, 1797 based on Foata normal form. 0/6418 useless extension candidates. Maximal degree in co-relation 15217. Up to 6445 conditions per place. [2025-03-04 15:15:08,388 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 49 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2025-03-04 15:15:08,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 233 flow [2025-03-04 15:15:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:15:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:15:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2025-03-04 15:15:08,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6754385964912281 [2025-03-04 15:15:08,402 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 77 transitions. [2025-03-04 15:15:08,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 233 flow [2025-03-04 15:15:08,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 15:15:08,410 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2025-03-04 15:15:08,412 INFO L262 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} [2025-03-04 15:15:08,415 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2025-03-04 15:15:08,417 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2025-03-04 15:15:08,417 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) [2025-03-04 15:15:08,417 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:15:08,417 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:15:08,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:15:08,417 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-04 15:15:08,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:15:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 638482068, now seen corresponding path program 1 times [2025-03-04 15:15:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:15:08,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548687114] [2025-03-04 15:15:08,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:15:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:15:08,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:15:08,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:15:08,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:15:08,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:15:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:15:08,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:15:08,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548687114] [2025-03-04 15:15:08,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548687114] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:15:08,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:15:08,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:15:08,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669134669] [2025-03-04 15:15:08,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:15:08,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:15:08,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:15:08,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:15:08,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:15:08,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-03-04 15:15:08,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2025-03-04 15:15:08,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:15:08,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-03-04 15:15:08,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:15:09,220 INFO L124 PetriNetUnfolderBase]: 4052/5848 cut-off events. [2025-03-04 15:15:09,221 INFO L125 PetriNetUnfolderBase]: For 392/392 co-relation queries the response was YES. [2025-03-04 15:15:09,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13350 conditions, 5848 events. 4052/5848 cut-off events. For 392/392 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 30171 event pairs, 1324 based on Foata normal form. 0/5353 useless extension candidates. Maximal degree in co-relation 13339. Up to 4727 conditions per place. [2025-03-04 15:15:09,255 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 46 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2025-03-04 15:15:09,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 53 transitions, 240 flow [2025-03-04 15:15:09,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:15:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:15:09,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2025-03-04 15:15:09,257 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2025-03-04 15:15:09,257 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 77 transitions. [2025-03-04 15:15:09,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 53 transitions, 240 flow [2025-03-04 15:15:09,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 53 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:15:09,266 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2025-03-04 15:15:09,267 INFO L262 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} [2025-03-04 15:15:09,268 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, -1 predicate places. [2025-03-04 15:15:09,268 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2025-03-04 15:15:09,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2025-03-04 15:15:09,269 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:15:09,269 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:15:09,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:15:09,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-04 15:15:09,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:15:09,270 INFO L85 PathProgramCache]: Analyzing trace with hash 638482069, now seen corresponding path program 1 times [2025-03-04 15:15:09,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:15:09,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534141039] [2025-03-04 15:15:09,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:15:09,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:15:09,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 15:15:09,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 15:15:09,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:15:09,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:15:09,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:15:09,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:15:09,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534141039] [2025-03-04 15:15:09,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534141039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:15:09,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:15:09,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:15:09,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221048507] [2025-03-04 15:15:09,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:15:09,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:15:09,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:15:09,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:15:09,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:15:09,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-03-04 15:15:09,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2025-03-04 15:15:09,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:15:09,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-03-04 15:15:09,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:15:09,948 INFO L124 PetriNetUnfolderBase]: 3215/4653 cut-off events. [2025-03-04 15:15:09,949 INFO L125 PetriNetUnfolderBase]: For 882/882 co-relation queries the response was YES. [2025-03-04 15:15:09,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10469 conditions, 4653 events. 3215/4653 cut-off events. For 882/882 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 23186 event pairs, 805 based on Foata normal form. 0/4558 useless extension candidates. Maximal degree in co-relation 10457. Up to 1948 conditions per place. [2025-03-04 15:15:09,972 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 62 selfloop transitions, 7 changer transitions 3/75 dead transitions. [2025-03-04 15:15:09,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 75 transitions, 340 flow [2025-03-04 15:15:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:15:09,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:15:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2025-03-04 15:15:09,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6513157894736842 [2025-03-04 15:15:09,975 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 4 states and 99 transitions. [2025-03-04 15:15:09,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 75 transitions, 340 flow [2025-03-04 15:15:09,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 75 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:15:09,978 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 125 flow [2025-03-04 15:15:09,978 INFO L262 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} [2025-03-04 15:15:09,979 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2025-03-04 15:15:09,979 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 125 flow [2025-03-04 15:15:09,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2025-03-04 15:15:09,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:15:09,979 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] [2025-03-04 15:15:09,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:15:09,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-03-04 15:15:09,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:15:09,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1418390774, now seen corresponding path program 1 times [2025-03-04 15:15:09,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:15:09,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253840213] [2025-03-04 15:15:09,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:15:09,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:15:09,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-04 15:15:10,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-04 15:15:10,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:15:10,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:15:10,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:15:10,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:15:10,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253840213] [2025-03-04 15:15:10,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253840213] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:15:10,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:15:10,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:15:10,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548607846] [2025-03-04 15:15:10,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:15:10,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:15:10,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:15:10,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:15:10,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:15:10,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-03-04 15:15:10,139 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) [2025-03-04 15:15:10,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:15:10,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-03-04 15:15:10,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:15:10,525 INFO L124 PetriNetUnfolderBase]: 2899/4197 cut-off events. [2025-03-04 15:15:10,526 INFO L125 PetriNetUnfolderBase]: For 2070/2070 co-relation queries the response was YES. [2025-03-04 15:15:10,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10320 conditions, 4197 events. 2899/4197 cut-off events. For 2070/2070 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 21095 event pairs, 735 based on Foata normal form. 84/4270 useless extension candidates. Maximal degree in co-relation 10307. Up to 1948 conditions per place. [2025-03-04 15:15:10,537 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2025-03-04 15:15:10,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 69 transitions, 319 flow [2025-03-04 15:15:10,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:15:10,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:15:10,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2025-03-04 15:15:10,540 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5210526315789473 [2025-03-04 15:15:10,541 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 125 flow. Second operand 5 states and 99 transitions. [2025-03-04 15:15:10,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 69 transitions, 319 flow [2025-03-04 15:15:10,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 295 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-04 15:15:10,544 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2025-03-04 15:15:10,544 INFO L262 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} [2025-03-04 15:15:10,545 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2025-03-04 15:15:10,545 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2025-03-04 15:15:10,546 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) [2025-03-04 15:15:10,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-03-04 15:15:10,551 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-03-04 15:15:10,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:15:10,552 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-04 15:15:10,556 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-04 15:15:10,556 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 15:15:10,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 03:15:10 BasicIcfg [2025-03-04 15:15:10,560 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 15:15:10,560 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 15:15:10,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 15:15:10,560 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 15:15:10,561 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:15:06" (3/4) ... [2025-03-04 15:15:10,562 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-04 15:15:10,564 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-04 15:15:10,564 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-04 15:15:10,564 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-04 15:15:10,568 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2025-03-04 15:15:10,568 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-04 15:15:10,568 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-04 15:15:10,569 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-04 15:15:10,626 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 15:15:10,627 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 15:15:10,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 15:15:10,627 INFO L158 Benchmark]: Toolchain (without parser) took 5057.17ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 105.1MB in the beginning and 254.4MB in the end (delta: -149.4MB). Peak memory consumption was 253.5MB. Max. memory is 16.1GB. [2025-03-04 15:15:10,628 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:15:10,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.05ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 81.4MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-04 15:15:10,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.46ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 79.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:15:10,628 INFO L158 Benchmark]: Boogie Preprocessor took 42.63ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 76.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 15:15:10,628 INFO L158 Benchmark]: IcfgBuilder took 788.74ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 63.7MB in the end (delta: 12.9MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2025-03-04 15:15:10,629 INFO L158 Benchmark]: TraceAbstraction took 3693.94ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 63.0MB in the beginning and 262.8MB in the end (delta: -199.8MB). Peak memory consumption was 284.3MB. Max. memory is 16.1GB. [2025-03-04 15:15:10,629 INFO L158 Benchmark]: Witness Printer took 66.70ms. Allocated memory is still 545.3MB. Free memory was 262.8MB in the beginning and 254.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 15:15:10,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.05ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 81.4MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.46ms. Allocated memory is still 142.6MB. Free memory was 81.4MB in the beginning and 79.5MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.63ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 76.6MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 788.74ms. Allocated memory is still 142.6MB. Free memory was 76.6MB in the beginning and 63.7MB in the end (delta: 12.9MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3693.94ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 63.0MB in the beginning and 262.8MB in the end (delta: -199.8MB). Peak memory consumption was 284.3MB. Max. memory is 16.1GB. * Witness Printer took 66.70ms. Allocated memory is still 545.3MB. Free memory was 262.8MB in the beginning and 254.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 806]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 823]: 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: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 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, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 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! [2025-03-04 15:15:10,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE