./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe018_rmo.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/safe018_rmo.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 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:01:04,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:01:04,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:01:04,792 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:01:04,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:01:04,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:01:04,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:01:04,814 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:01:04,815 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:01:04,815 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:01:04,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:01:04,816 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:01:04,816 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:01:04,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:01:04,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:01:04,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:01:04,818 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:01:04,818 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:01:04,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:01:04,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:01:04,820 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:01:04,820 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 -> 6f413b41672ef8cb3f594e0d22a82a07ab4d735f8bfa69fff7e94198d51bd0eb [2025-02-08 14:01:05,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:01:05,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:01:05,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:01:05,033 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:01:05,033 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:01:05,034 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i [2025-02-08 14:01:06,130 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ad26ca88/da1b058a8848496983b3a4c1704a9e84/FLAGaad6c1a4e [2025-02-08 14:01:06,441 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:01:06,442 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_rmo.oepc.i [2025-02-08 14:01:06,452 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ad26ca88/da1b058a8848496983b3a4c1704a9e84/FLAGaad6c1a4e [2025-02-08 14:01:06,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4ad26ca88/da1b058a8848496983b3a4c1704a9e84 [2025-02-08 14:01:06,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:01:06,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:01:06,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:01:06,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:01:06,714 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:01:06,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:01:06" (1/1) ... [2025-02-08 14:01:06,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58490fee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:06, skipping insertion in model container [2025-02-08 14:01:06,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:01:06" (1/1) ... [2025-02-08 14:01:06,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:01:07,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:01:07,020 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:01:07,086 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:01:07,121 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:01:07,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07 WrapperNode [2025-02-08 14:01:07,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:01:07,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:01:07,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:01:07,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:01:07,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,149 INFO L138 Inliner]: procedures = 175, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 127 [2025-02-08 14:01:07,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:01:07,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:01:07,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:01:07,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:01:07,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,177 INFO L175 MemorySlicer]: Split 15 memory accesses to 2 slices as follows [2, 13]. 87 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 5 writes are split as follows [0, 5]. [2025-02-08 14:01:07,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,178 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,183 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,188 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:01:07,188 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:01:07,189 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:01:07,189 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:01:07,189 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (1/1) ... [2025-02-08 14:01:07,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:01:07,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:01:07,216 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 14:01:07,223 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 14:01:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 14:01:07,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 14:01:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 14:01:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 14:01:07,242 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 14:01:07,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 14:01:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:01:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:01:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 14:01:07,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:01:07,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:01:07,244 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 14:01:07,349 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:01:07,350 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:01:07,636 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:01:07,636 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:01:07,889 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:01:07,889 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:01:07,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:01:07 BoogieIcfgContainer [2025-02-08 14:01:07,891 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:01:07,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:01:07,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:01:07,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:01:07,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:01:06" (1/3) ... [2025-02-08 14:01:07,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707be72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:01:07, skipping insertion in model container [2025-02-08 14:01:07,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:01:07" (2/3) ... [2025-02-08 14:01:07,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@707be72d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:01:07, skipping insertion in model container [2025-02-08 14:01:07,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:01:07" (3/3) ... [2025-02-08 14:01:07,902 INFO L128 eAbstractionObserver]: Analyzing ICFG safe018_rmo.oepc.i [2025-02-08 14:01:07,915 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:01:07,919 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe018_rmo.oepc.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2025-02-08 14:01:07,919 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:01:07,972 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:01:07,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 38 transitions, 88 flow [2025-02-08 14:01:08,013 INFO L124 PetriNetUnfolderBase]: 0/35 cut-off events. [2025-02-08 14:01:08,015 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:01:08,016 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 8. Compared 83 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. [2025-02-08 14:01:08,016 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 38 transitions, 88 flow [2025-02-08 14:01:08,018 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 35 transitions, 79 flow [2025-02-08 14:01:08,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:01:08,045 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;@3f31f6db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:01:08,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2025-02-08 14:01:08,054 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:01:08,057 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-02-08 14:01:08,057 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:01:08,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:01:08,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:01:08,059 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 14:01:08,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:01:08,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1456880677, now seen corresponding path program 1 times [2025-02-08 14:01:08,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:01:08,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714374368] [2025-02-08 14:01:08,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:01:08,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:01:08,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 14:01:08,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 14:01:08,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:01:08,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:01:08,381 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 14:01:08,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:01:08,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714374368] [2025-02-08 14:01:08,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714374368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:01:08,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:01:08,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 14:01:08,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785211907] [2025-02-08 14:01:08,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:01:08,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:01:08,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:01:08,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:01:08,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:01:08,413 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-02-08 14:01:08,414 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) [2025-02-08 14:01:08,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:01:08,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-02-08 14:01:08,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:01:09,316 INFO L124 PetriNetUnfolderBase]: 5221/7533 cut-off events. [2025-02-08 14:01:09,316 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-02-08 14:01:09,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15150 conditions, 7533 events. 5221/7533 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 40541 event pairs, 1783 based on Foata normal form. 0/6384 useless extension candidates. Maximal degree in co-relation 15139. Up to 6433 conditions per place. [2025-02-08 14:01:09,355 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 49 selfloop transitions, 4 changer transitions 0/56 dead transitions. [2025-02-08 14:01:09,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 233 flow [2025-02-08 14:01:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:01:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:01:09,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2025-02-08 14:01:09,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6754385964912281 [2025-02-08 14:01:09,366 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 79 flow. Second operand 3 states and 77 transitions. [2025-02-08 14:01:09,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 233 flow [2025-02-08 14:01:09,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 56 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:01:09,371 INFO L231 Difference]: Finished difference. Result has 45 places, 38 transitions, 112 flow [2025-02-08 14:01:09,373 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} [2025-02-08 14:01:09,375 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2025-02-08 14:01:09,375 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 38 transitions, 112 flow [2025-02-08 14:01:09,375 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 14:01:09,376 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:01:09,376 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:01:09,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:01:09,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 14:01:09,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:01:09,377 INFO L85 PathProgramCache]: Analyzing trace with hash -606358876, now seen corresponding path program 1 times [2025-02-08 14:01:09,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:01:09,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436611549] [2025-02-08 14:01:09,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:01:09,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:01:09,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:01:09,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:01:09,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:01:09,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:01:09,549 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 14:01:09,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:01:09,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436611549] [2025-02-08 14:01:09,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436611549] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:01:09,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:01:09,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:01:09,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856560792] [2025-02-08 14:01:09,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:01:09,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:01:09,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:01:09,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:01:09,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:01:09,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-02-08 14:01:09,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 38 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:01:09,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:01:09,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-02-08 14:01:09,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:01:10,058 INFO L124 PetriNetUnfolderBase]: 4258/6212 cut-off events. [2025-02-08 14:01:10,059 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2025-02-08 14:01:10,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14144 conditions, 6212 events. 4258/6212 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 33042 event pairs, 1054 based on Foata normal form. 0/5631 useless extension candidates. Maximal degree in co-relation 14133. Up to 3287 conditions per place. [2025-02-08 14:01:10,144 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 65 selfloop transitions, 10 changer transitions 3/81 dead transitions. [2025-02-08 14:01:10,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 81 transitions, 372 flow [2025-02-08 14:01:10,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:01:10,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:01:10,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-02-08 14:01:10,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6907894736842105 [2025-02-08 14:01:10,146 INFO L175 Difference]: Start difference. First operand has 45 places, 38 transitions, 112 flow. Second operand 4 states and 105 transitions. [2025-02-08 14:01:10,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 81 transitions, 372 flow [2025-02-08 14:01:10,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 81 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:01:10,148 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 168 flow [2025-02-08 14:01:10,148 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2025-02-08 14:01:10,149 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 4 predicate places. [2025-02-08 14:01:10,149 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 168 flow [2025-02-08 14:01:10,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:01:10,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:01:10,149 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:01:10,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:01:10,150 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2025-02-08 14:01:10,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:01:10,150 INFO L85 PathProgramCache]: Analyzing trace with hash -606358877, now seen corresponding path program 1 times [2025-02-08 14:01:10,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:01:10,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333436715] [2025-02-08 14:01:10,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:01:10,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:01:10,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:01:10,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:01:10,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:01:10,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:01:10,225 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 14:01:10,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:01:10,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333436715] [2025-02-08 14:01:10,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333436715] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:01:10,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:01:10,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:01:10,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706311076] [2025-02-08 14:01:10,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:01:10,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:01:10,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:01:10,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:01:10,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:01:10,229 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-02-08 14:01:10,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:01:10,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:01:10,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-02-08 14:01:10,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:01:10,696 INFO L124 PetriNetUnfolderBase]: 3033/4405 cut-off events. [2025-02-08 14:01:10,697 INFO L125 PetriNetUnfolderBase]: For 3646/3646 co-relation queries the response was YES. [2025-02-08 14:01:10,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10589 conditions, 4405 events. 3033/4405 cut-off events. For 3646/3646 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 22605 event pairs, 963 based on Foata normal form. 400/4792 useless extension candidates. Maximal degree in co-relation 10575. Up to 3304 conditions per place. [2025-02-08 14:01:10,718 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 46 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2025-02-08 14:01:10,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 266 flow [2025-02-08 14:01:10,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:01:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:01:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2025-02-08 14:01:10,719 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.506578947368421 [2025-02-08 14:01:10,720 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 168 flow. Second operand 4 states and 77 transitions. [2025-02-08 14:01:10,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 266 flow [2025-02-08 14:01:10,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 248 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-02-08 14:01:10,749 INFO L231 Difference]: Finished difference. Result has 46 places, 35 transitions, 116 flow [2025-02-08 14:01:10,749 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=43, 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=116, PETRI_PLACES=46, PETRI_TRANSITIONS=35} [2025-02-08 14:01:10,750 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 1 predicate places. [2025-02-08 14:01:10,750 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 35 transitions, 116 flow [2025-02-08 14:01:10,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 14:01:10,750 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:01:10,750 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] [2025-02-08 14:01:10,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:01:10,750 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 14:01:10,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:01:10,751 INFO L85 PathProgramCache]: Analyzing trace with hash 671566407, now seen corresponding path program 1 times [2025-02-08 14:01:10,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:01:10,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081805999] [2025-02-08 14:01:10,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:01:10,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:01:10,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 14:01:10,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 14:01:10,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:01:10,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:01:10,871 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 14:01:10,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:01:10,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081805999] [2025-02-08 14:01:10,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081805999] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:01:10,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:01:10,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:01:10,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143674710] [2025-02-08 14:01:10,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:01:10,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:01:10,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:01:10,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:01:10,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:01:10,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 38 [2025-02-08 14:01:10,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 35 transitions, 116 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) [2025-02-08 14:01:10,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:01:10,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 38 [2025-02-08 14:01:10,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:01:11,325 INFO L124 PetriNetUnfolderBase]: 2877/4165 cut-off events. [2025-02-08 14:01:11,325 INFO L125 PetriNetUnfolderBase]: For 1856/1856 co-relation queries the response was YES. [2025-02-08 14:01:11,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9604 conditions, 4165 events. 2877/4165 cut-off events. For 1856/1856 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 21255 event pairs, 721 based on Foata normal form. 84/4236 useless extension candidates. Maximal degree in co-relation 9591. Up to 1936 conditions per place. [2025-02-08 14:01:11,340 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 69/69 dead transitions. [2025-02-08 14:01:11,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 69 transitions, 310 flow [2025-02-08 14:01:11,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:01:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:01:11,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 99 transitions. [2025-02-08 14:01:11,342 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5210526315789473 [2025-02-08 14:01:11,343 INFO L175 Difference]: Start difference. First operand has 46 places, 35 transitions, 116 flow. Second operand 5 states and 99 transitions. [2025-02-08 14:01:11,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 69 transitions, 310 flow [2025-02-08 14:01:11,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 69 transitions, 295 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 14:01:11,346 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2025-02-08 14:01:11,346 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} [2025-02-08 14:01:11,348 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, -2 predicate places. [2025-02-08 14:01:11,348 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2025-02-08 14:01:11,348 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) [2025-02-08 14:01:11,350 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2025-02-08 14:01:11,352 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2025-02-08 14:01:11,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2025-02-08 14:01:11,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2025-02-08 14:01:11,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2025-02-08 14:01:11,353 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2025-02-08 14:01:11,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:01:11,353 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-08 14:01:11,358 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:01:11,359 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:01:11,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:01:11 BasicIcfg [2025-02-08 14:01:11,363 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:01:11,363 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:01:11,363 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:01:11,363 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:01:11,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:01:07" (3/4) ... [2025-02-08 14:01:11,367 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:01:11,369 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 14:01:11,369 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 14:01:11,369 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 14:01:11,372 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2025-02-08 14:01:11,373 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 14:01:11,373 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 14:01:11,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 14:01:11,437 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:01:11,438 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:01:11,438 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:01:11,440 INFO L158 Benchmark]: Toolchain (without parser) took 4729.45ms. Allocated memory was 142.6MB in the beginning and 805.3MB in the end (delta: 662.7MB). Free memory was 105.3MB in the beginning and 362.7MB in the end (delta: -257.4MB). Peak memory consumption was 397.0MB. Max. memory is 16.1GB. [2025-02-08 14:01:11,440 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:01:11,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.15ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 82.4MB in the end (delta: 22.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:01:11,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.40ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 81.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:01:11,442 INFO L158 Benchmark]: Boogie Preprocessor took 37.60ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 77.8MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:01:11,442 INFO L158 Benchmark]: IcfgBuilder took 702.75ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 76.6MB in the end (delta: 1.2MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2025-02-08 14:01:11,444 INFO L158 Benchmark]: TraceAbstraction took 3469.48ms. Allocated memory was 142.6MB in the beginning and 805.3MB in the end (delta: 662.7MB). Free memory was 75.8MB in the beginning and 371.1MB in the end (delta: -295.3MB). Peak memory consumption was 365.7MB. Max. memory is 16.1GB. [2025-02-08 14:01:11,444 INFO L158 Benchmark]: Witness Printer took 75.04ms. Allocated memory is still 805.3MB. Free memory was 371.1MB in the beginning and 362.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:01:11,446 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 226.5MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.15ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 82.4MB in the end (delta: 22.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.40ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 81.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.60ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 77.8MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 702.75ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 76.6MB in the end (delta: 1.2MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3469.48ms. Allocated memory was 142.6MB in the beginning and 805.3MB in the end (delta: 662.7MB). Free memory was 75.8MB in the beginning and 371.1MB in the end (delta: -295.3MB). Peak memory consumption was 365.7MB. Max. memory is 16.1GB. * Witness Printer took 75.04ms. Allocated memory is still 805.3MB. Free memory was 371.1MB in the beginning and 362.7MB 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: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 784]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 796]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 158 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 321 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 0 mSDtfsCounter, 321 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=168occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, 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 14:01:11,466 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