./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 09:26:53,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 09:26:54,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 09:26:54,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 09:26:54,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 09:26:54,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 09:26:54,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 09:26:54,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 09:26:54,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 09:26:54,076 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 09:26:54,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 09:26:54,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 09:26:54,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 09:26:54,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 09:26:54,078 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 09:26:54,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 09:26:54,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 09:26:54,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 09:26:54,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 09:26:54,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 09:26:54,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 09:26:54,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 09:26:54,083 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 09:26:54,084 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 09:26:54,084 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 09:26:54,084 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 09:26:54,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 09:26:54,085 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 09:26:54,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 09:26:54,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 09:26:54,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 09:26:54,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 09:26:54,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:26:54,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 09:26:54,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 09:26:54,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 09:26:54,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 09:26:54,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 09:26:54,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 09:26:54,092 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 09:26:54,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 09:26:54,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 09:26:54,094 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 [2024-11-20 09:26:54,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 09:26:54,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 09:26:54,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 09:26:54,390 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 09:26:54,390 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 09:26:54,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-20 09:26:55,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 09:26:56,089 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 09:26:56,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-20 09:26:56,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190ff8569/fb9b56274ee14404981d66ca971c6e3e/FLAG2ac7200d5 [2024-11-20 09:26:56,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190ff8569/fb9b56274ee14404981d66ca971c6e3e [2024-11-20 09:26:56,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 09:26:56,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 09:26:56,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 09:26:56,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 09:26:56,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 09:26:56,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e5e2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56, skipping insertion in model container [2024-11-20 09:26:56,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,188 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 09:26:56,406 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-20 09:26:56,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:26:56,610 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 09:26:56,622 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-20 09:26:56,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 09:26:56,711 INFO L204 MainTranslator]: Completed translation [2024-11-20 09:26:56,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56 WrapperNode [2024-11-20 09:26:56,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 09:26:56,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 09:26:56,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 09:26:56,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 09:26:56,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,763 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-11-20 09:26:56,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 09:26:56,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 09:26:56,766 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 09:26:56,766 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 09:26:56,776 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,803 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 09:26:56,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,826 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 09:26:56,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 09:26:56,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 09:26:56,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 09:26:56,834 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (1/1) ... [2024-11-20 09:26:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 09:26:56,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 09:26:56,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 09:26:56,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 09:26:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 09:26:56,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 09:26:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-20 09:26:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-20 09:26:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-20 09:26:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-20 09:26:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-20 09:26:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-20 09:26:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 09:26:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 09:26:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 09:26:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 09:26:56,933 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 09:26:57,048 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 09:26:57,051 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 09:26:57,196 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 09:26:57,196 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 09:26:57,335 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 09:26:57,335 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 09:26:57,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:57 BoogieIcfgContainer [2024-11-20 09:26:57,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 09:26:57,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 09:26:57,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 09:26:57,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 09:26:57,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:26:56" (1/3) ... [2024-11-20 09:26:57,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae92993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:26:57, skipping insertion in model container [2024-11-20 09:26:57,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:26:56" (2/3) ... [2024-11-20 09:26:57,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae92993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:26:57, skipping insertion in model container [2024-11-20 09:26:57,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:57" (3/3) ... [2024-11-20 09:26:57,350 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-20 09:26:57,364 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 09:26:57,365 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 09:26:57,365 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 09:26:57,414 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-20 09:26:57,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 39 transitions, 90 flow [2024-11-20 09:26:57,490 INFO L124 PetriNetUnfolderBase]: 1/36 cut-off events. [2024-11-20 09:26:57,492 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 09:26:57,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-11-20 09:26:57,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 39 transitions, 90 flow [2024-11-20 09:26:57,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 33 transitions, 75 flow [2024-11-20 09:26:57,510 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 09:26:57,517 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;@5b2748e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 09:26:57,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-20 09:26:57,530 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 09:26:57,531 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-20 09:26:57,531 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 09:26:57,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:26:57,532 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:26:57,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:26:57,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:26:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1355682451, now seen corresponding path program 1 times [2024-11-20 09:26:57,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:26:57,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628088096] [2024-11-20 09:26:57,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:26:57,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:26:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:26:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:26:58,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:26:58,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628088096] [2024-11-20 09:26:58,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628088096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:26:58,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:26:58,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:26:58,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187238247] [2024-11-20 09:26:58,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:26:58,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:26:58,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:26:58,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:26:58,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:26:58,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:26:58,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 75 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:26:58,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:26:58,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:26:58,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:26:58,824 INFO L124 PetriNetUnfolderBase]: 1589/2986 cut-off events. [2024-11-20 09:26:58,824 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-20 09:26:58,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5469 conditions, 2986 events. 1589/2986 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 21458 event pairs, 465 based on Foata normal form. 99/3033 useless extension candidates. Maximal degree in co-relation 5458. Up to 965 conditions per place. [2024-11-20 09:26:58,858 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 30 selfloop transitions, 7 changer transitions 39/89 dead transitions. [2024-11-20 09:26:58,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 89 transitions, 345 flow [2024-11-20 09:26:58,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:26:58,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 09:26:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2024-11-20 09:26:58,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6959706959706959 [2024-11-20 09:26:58,877 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 75 flow. Second operand 7 states and 190 transitions. [2024-11-20 09:26:58,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 89 transitions, 345 flow [2024-11-20 09:26:58,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 89 transitions, 340 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 09:26:58,888 INFO L231 Difference]: Finished difference. Result has 52 places, 39 transitions, 158 flow [2024-11-20 09:26:58,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=158, PETRI_PLACES=52, PETRI_TRANSITIONS=39} [2024-11-20 09:26:58,896 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 9 predicate places. [2024-11-20 09:26:58,897 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 39 transitions, 158 flow [2024-11-20 09:26:58,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:26:58,897 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:26:58,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:26:58,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 09:26:58,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:26:58,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:26:58,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1836728556, now seen corresponding path program 1 times [2024-11-20 09:26:58,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:26:58,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450474349] [2024-11-20 09:26:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:26:58,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:26:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:26:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:26:59,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:26:59,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450474349] [2024-11-20 09:26:59,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450474349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:26:59,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:26:59,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:26:59,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43644263] [2024-11-20 09:26:59,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:26:59,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:26:59,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:26:59,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:26:59,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:26:59,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:26:59,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 39 transitions, 158 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:26:59,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:26:59,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:26:59,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:26:59,551 INFO L124 PetriNetUnfolderBase]: 1351/2589 cut-off events. [2024-11-20 09:26:59,552 INFO L125 PetriNetUnfolderBase]: For 3207/3212 co-relation queries the response was YES. [2024-11-20 09:26:59,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7585 conditions, 2589 events. 1351/2589 cut-off events. For 3207/3212 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 18592 event pairs, 182 based on Foata normal form. 82/2641 useless extension candidates. Maximal degree in co-relation 7569. Up to 774 conditions per place. [2024-11-20 09:26:59,573 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 37 selfloop transitions, 8 changer transitions 58/116 dead transitions. [2024-11-20 09:26:59,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 116 transitions, 772 flow [2024-11-20 09:26:59,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:26:59,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 09:26:59,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 253 transitions. [2024-11-20 09:26:59,577 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6487179487179487 [2024-11-20 09:26:59,579 INFO L175 Difference]: Start difference. First operand has 52 places, 39 transitions, 158 flow. Second operand 10 states and 253 transitions. [2024-11-20 09:26:59,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 116 transitions, 772 flow [2024-11-20 09:26:59,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 116 transitions, 714 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 09:26:59,598 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 230 flow [2024-11-20 09:26:59,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=230, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-11-20 09:26:59,600 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-11-20 09:26:59,600 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 230 flow [2024-11-20 09:26:59,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:26:59,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:26:59,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:26:59,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 09:26:59,601 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:26:59,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:26:59,602 INFO L85 PathProgramCache]: Analyzing trace with hash 76698494, now seen corresponding path program 1 times [2024-11-20 09:26:59,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:26:59,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36010791] [2024-11-20 09:26:59,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:26:59,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:26:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:26:59,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:26:59,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:26:59,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36010791] [2024-11-20 09:26:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36010791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:26:59,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:26:59,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:26:59,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125510459] [2024-11-20 09:26:59,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:26:59,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:26:59,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:26:59,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:26:59,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:26:59,747 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:26:59,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:26:59,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:26:59,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:26:59,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:00,149 INFO L124 PetriNetUnfolderBase]: 1199/2314 cut-off events. [2024-11-20 09:27:00,150 INFO L125 PetriNetUnfolderBase]: For 6827/6831 co-relation queries the response was YES. [2024-11-20 09:27:00,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7885 conditions, 2314 events. 1199/2314 cut-off events. For 6827/6831 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 16121 event pairs, 115 based on Foata normal form. 75/2362 useless extension candidates. Maximal degree in co-relation 7860. Up to 662 conditions per place. [2024-11-20 09:27:00,173 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 43 selfloop transitions, 12 changer transitions 52/120 dead transitions. [2024-11-20 09:27:00,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 120 transitions, 916 flow [2024-11-20 09:27:00,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:27:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 09:27:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 251 transitions. [2024-11-20 09:27:00,178 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6435897435897436 [2024-11-20 09:27:00,179 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 230 flow. Second operand 10 states and 251 transitions. [2024-11-20 09:27:00,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 120 transitions, 916 flow [2024-11-20 09:27:00,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 120 transitions, 869 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-20 09:27:00,200 INFO L231 Difference]: Finished difference. Result has 73 places, 49 transitions, 352 flow [2024-11-20 09:27:00,201 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=352, PETRI_PLACES=73, PETRI_TRANSITIONS=49} [2024-11-20 09:27:00,202 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2024-11-20 09:27:00,202 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 49 transitions, 352 flow [2024-11-20 09:27:00,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:00,203 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:00,203 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:00,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 09:27:00,203 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:00,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1259877593, now seen corresponding path program 1 times [2024-11-20 09:27:00,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:00,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503037061] [2024-11-20 09:27:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:00,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:00,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:00,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503037061] [2024-11-20 09:27:00,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503037061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:00,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:00,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:27:00,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322314237] [2024-11-20 09:27:00,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:00,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:27:00,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:00,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:27:00,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:27:00,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:27:00,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 49 transitions, 352 flow. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:00,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:00,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:27:00,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:00,741 INFO L124 PetriNetUnfolderBase]: 1033/2019 cut-off events. [2024-11-20 09:27:00,741 INFO L125 PetriNetUnfolderBase]: For 8012/8012 co-relation queries the response was YES. [2024-11-20 09:27:00,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7557 conditions, 2019 events. 1033/2019 cut-off events. For 8012/8012 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 13872 event pairs, 169 based on Foata normal form. 60/2035 useless extension candidates. Maximal degree in co-relation 7524. Up to 576 conditions per place. [2024-11-20 09:27:00,759 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 44 selfloop transitions, 18 changer transitions 48/123 dead transitions. [2024-11-20 09:27:00,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 123 transitions, 1084 flow [2024-11-20 09:27:00,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:27:00,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 09:27:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 249 transitions. [2024-11-20 09:27:00,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6384615384615384 [2024-11-20 09:27:00,762 INFO L175 Difference]: Start difference. First operand has 73 places, 49 transitions, 352 flow. Second operand 10 states and 249 transitions. [2024-11-20 09:27:00,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 123 transitions, 1084 flow [2024-11-20 09:27:00,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 123 transitions, 1010 flow, removed 35 selfloop flow, removed 7 redundant places. [2024-11-20 09:27:00,781 INFO L231 Difference]: Finished difference. Result has 78 places, 54 transitions, 477 flow [2024-11-20 09:27:00,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=477, PETRI_PLACES=78, PETRI_TRANSITIONS=54} [2024-11-20 09:27:00,782 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 35 predicate places. [2024-11-20 09:27:00,782 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 54 transitions, 477 flow [2024-11-20 09:27:00,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:00,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:00,783 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:00,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 09:27:00,783 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:00,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:00,784 INFO L85 PathProgramCache]: Analyzing trace with hash -52921840, now seen corresponding path program 1 times [2024-11-20 09:27:00,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:00,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567136197] [2024-11-20 09:27:00,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:00,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:00,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:00,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:00,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567136197] [2024-11-20 09:27:00,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567136197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:00,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:00,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:27:00,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986112019] [2024-11-20 09:27:00,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:00,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:27:00,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:27:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:27:00,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:27:00,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 54 transitions, 477 flow. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:00,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:00,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:27:00,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:01,276 INFO L124 PetriNetUnfolderBase]: 892/1720 cut-off events. [2024-11-20 09:27:01,276 INFO L125 PetriNetUnfolderBase]: For 8297/8297 co-relation queries the response was YES. [2024-11-20 09:27:01,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7060 conditions, 1720 events. 892/1720 cut-off events. For 8297/8297 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 11088 event pairs, 146 based on Foata normal form. 28/1718 useless extension candidates. Maximal degree in co-relation 7023. Up to 648 conditions per place. [2024-11-20 09:27:01,294 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 45 selfloop transitions, 28 changer transitions 30/116 dead transitions. [2024-11-20 09:27:01,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 116 transitions, 1188 flow [2024-11-20 09:27:01,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 09:27:01,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 09:27:01,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-11-20 09:27:01,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6205128205128205 [2024-11-20 09:27:01,297 INFO L175 Difference]: Start difference. First operand has 78 places, 54 transitions, 477 flow. Second operand 10 states and 242 transitions. [2024-11-20 09:27:01,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 116 transitions, 1188 flow [2024-11-20 09:27:01,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 116 transitions, 1119 flow, removed 29 selfloop flow, removed 7 redundant places. [2024-11-20 09:27:01,319 INFO L231 Difference]: Finished difference. Result has 83 places, 65 transitions, 741 flow [2024-11-20 09:27:01,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=741, PETRI_PLACES=83, PETRI_TRANSITIONS=65} [2024-11-20 09:27:01,320 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 40 predicate places. [2024-11-20 09:27:01,320 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 65 transitions, 741 flow [2024-11-20 09:27:01,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:01,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:01,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:01,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 09:27:01,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:01,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1159047919, now seen corresponding path program 1 times [2024-11-20 09:27:01,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:01,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710146585] [2024-11-20 09:27:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:01,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:01,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710146585] [2024-11-20 09:27:01,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710146585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:01,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 09:27:01,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496754310] [2024-11-20 09:27:01,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:01,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:27:01,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:01,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:27:01,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:27:01,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:27:01,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 65 transitions, 741 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:01,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:01,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:27:01,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:01,944 INFO L124 PetriNetUnfolderBase]: 1214/2387 cut-off events. [2024-11-20 09:27:01,945 INFO L125 PetriNetUnfolderBase]: For 15908/15908 co-relation queries the response was YES. [2024-11-20 09:27:01,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10300 conditions, 2387 events. 1214/2387 cut-off events. For 15908/15908 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 17265 event pairs, 211 based on Foata normal form. 38/2364 useless extension candidates. Maximal degree in co-relation 10258. Up to 540 conditions per place. [2024-11-20 09:27:01,968 INFO L140 encePairwiseOnDemand]: 29/39 looper letters, 44 selfloop transitions, 24 changer transitions 47/128 dead transitions. [2024-11-20 09:27:01,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 128 transitions, 1508 flow [2024-11-20 09:27:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 09:27:01,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-20 09:27:01,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 205 transitions. [2024-11-20 09:27:01,970 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.657051282051282 [2024-11-20 09:27:01,970 INFO L175 Difference]: Start difference. First operand has 83 places, 65 transitions, 741 flow. Second operand 8 states and 205 transitions. [2024-11-20 09:27:01,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 128 transitions, 1508 flow [2024-11-20 09:27:02,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 128 transitions, 1430 flow, removed 39 selfloop flow, removed 10 redundant places. [2024-11-20 09:27:02,005 INFO L231 Difference]: Finished difference. Result has 78 places, 62 transitions, 720 flow [2024-11-20 09:27:02,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=720, PETRI_PLACES=78, PETRI_TRANSITIONS=62} [2024-11-20 09:27:02,007 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 35 predicate places. [2024-11-20 09:27:02,008 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 62 transitions, 720 flow [2024-11-20 09:27:02,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:02,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:02,009 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:02,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 09:27:02,009 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:02,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:02,009 INFO L85 PathProgramCache]: Analyzing trace with hash 829493781, now seen corresponding path program 2 times [2024-11-20 09:27:02,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:02,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571218687] [2024-11-20 09:27:02,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:02,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:02,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:02,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:02,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571218687] [2024-11-20 09:27:02,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571218687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:02,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:02,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 09:27:02,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133090751] [2024-11-20 09:27:02,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:02,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 09:27:02,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:02,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 09:27:02,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 09:27:02,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 39 [2024-11-20 09:27:02,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 62 transitions, 720 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:02,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:02,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 39 [2024-11-20 09:27:02,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:02,476 INFO L124 PetriNetUnfolderBase]: 990/1995 cut-off events. [2024-11-20 09:27:02,477 INFO L125 PetriNetUnfolderBase]: For 14376/14376 co-relation queries the response was YES. [2024-11-20 09:27:02,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8686 conditions, 1995 events. 990/1995 cut-off events. For 14376/14376 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 14193 event pairs, 102 based on Foata normal form. 38/1999 useless extension candidates. Maximal degree in co-relation 8648. Up to 726 conditions per place. [2024-11-20 09:27:02,496 INFO L140 encePairwiseOnDemand]: 30/39 looper letters, 42 selfloop transitions, 9 changer transitions 45/109 dead transitions. [2024-11-20 09:27:02,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 109 transitions, 1301 flow [2024-11-20 09:27:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 09:27:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 09:27:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 175 transitions. [2024-11-20 09:27:02,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6410256410256411 [2024-11-20 09:27:02,498 INFO L175 Difference]: Start difference. First operand has 78 places, 62 transitions, 720 flow. Second operand 7 states and 175 transitions. [2024-11-20 09:27:02,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 109 transitions, 1301 flow [2024-11-20 09:27:02,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 109 transitions, 1219 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-20 09:27:02,522 INFO L231 Difference]: Finished difference. Result has 77 places, 46 transitions, 418 flow [2024-11-20 09:27:02,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=418, PETRI_PLACES=77, PETRI_TRANSITIONS=46} [2024-11-20 09:27:02,523 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 34 predicate places. [2024-11-20 09:27:02,523 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 46 transitions, 418 flow [2024-11-20 09:27:02,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:02,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:02,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:02,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 09:27:02,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:02,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:02,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1109185297, now seen corresponding path program 1 times [2024-11-20 09:27:02,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:02,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941367749] [2024-11-20 09:27:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:02,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:02,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:02,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941367749] [2024-11-20 09:27:02,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941367749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:02,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:02,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 09:27:02,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180252153] [2024-11-20 09:27:02,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:02,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 09:27:02,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:02,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 09:27:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 09:27:02,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-11-20 09:27:02,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 46 transitions, 418 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:02,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:02,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-11-20 09:27:02,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:02,784 INFO L124 PetriNetUnfolderBase]: 560/1147 cut-off events. [2024-11-20 09:27:02,784 INFO L125 PetriNetUnfolderBase]: For 1842/1894 co-relation queries the response was YES. [2024-11-20 09:27:02,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2930 conditions, 1147 events. 560/1147 cut-off events. For 1842/1894 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7060 event pairs, 140 based on Foata normal form. 77/1141 useless extension candidates. Maximal degree in co-relation 2892. Up to 464 conditions per place. [2024-11-20 09:27:02,797 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 26 selfloop transitions, 5 changer transitions 0/61 dead transitions. [2024-11-20 09:27:02,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 61 transitions, 514 flow [2024-11-20 09:27:02,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 09:27:02,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 09:27:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-11-20 09:27:02,800 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-20 09:27:02,800 INFO L175 Difference]: Start difference. First operand has 77 places, 46 transitions, 418 flow. Second operand 4 states and 117 transitions. [2024-11-20 09:27:02,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 61 transitions, 514 flow [2024-11-20 09:27:02,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 61 transitions, 443 flow, removed 11 selfloop flow, removed 10 redundant places. [2024-11-20 09:27:02,807 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 385 flow [2024-11-20 09:27:02,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=385, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-20 09:27:02,809 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 27 predicate places. [2024-11-20 09:27:02,810 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 385 flow [2024-11-20 09:27:02,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:02,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:02,812 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:02,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 09:27:02,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:02,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:02,813 INFO L85 PathProgramCache]: Analyzing trace with hash 684611730, now seen corresponding path program 1 times [2024-11-20 09:27:02,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:02,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837596453] [2024-11-20 09:27:02,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:02,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:02,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:02,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:02,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837596453] [2024-11-20 09:27:02,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837596453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:02,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:02,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 09:27:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844007371] [2024-11-20 09:27:02,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:02,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 09:27:02,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:02,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 09:27:02,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 09:27:02,921 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-11-20 09:27:02,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 385 flow. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:02,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:02,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-11-20 09:27:02,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:03,066 INFO L124 PetriNetUnfolderBase]: 448/933 cut-off events. [2024-11-20 09:27:03,067 INFO L125 PetriNetUnfolderBase]: For 904/1223 co-relation queries the response was YES. [2024-11-20 09:27:03,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2562 conditions, 933 events. 448/933 cut-off events. For 904/1223 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5378 event pairs, 33 based on Foata normal form. 81/944 useless extension candidates. Maximal degree in co-relation 2529. Up to 404 conditions per place. [2024-11-20 09:27:03,074 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 29 selfloop transitions, 8 changer transitions 4/71 dead transitions. [2024-11-20 09:27:03,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 71 transitions, 530 flow [2024-11-20 09:27:03,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 09:27:03,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 09:27:03,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-11-20 09:27:03,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7589743589743589 [2024-11-20 09:27:03,076 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 385 flow. Second operand 5 states and 148 transitions. [2024-11-20 09:27:03,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 71 transitions, 530 flow [2024-11-20 09:27:03,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 71 transitions, 515 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-20 09:27:03,081 INFO L231 Difference]: Finished difference. Result has 73 places, 53 transitions, 419 flow [2024-11-20 09:27:03,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=419, PETRI_PLACES=73, PETRI_TRANSITIONS=53} [2024-11-20 09:27:03,082 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2024-11-20 09:27:03,083 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 53 transitions, 419 flow [2024-11-20 09:27:03,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:03,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 09:27:03,083 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:03,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 09:27:03,084 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-20 09:27:03,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 09:27:03,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1754773814, now seen corresponding path program 1 times [2024-11-20 09:27:03,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 09:27:03,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581192560] [2024-11-20 09:27:03,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 09:27:03,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 09:27:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 09:27:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 09:27:03,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 09:27:03,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581192560] [2024-11-20 09:27:03,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581192560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 09:27:03,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 09:27:03,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 09:27:03,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136999148] [2024-11-20 09:27:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 09:27:03,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 09:27:03,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 09:27:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 09:27:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 09:27:03,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 39 [2024-11-20 09:27:03,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 53 transitions, 419 flow. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:03,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 09:27:03,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 39 [2024-11-20 09:27:03,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 09:27:03,341 INFO L124 PetriNetUnfolderBase]: 352/709 cut-off events. [2024-11-20 09:27:03,341 INFO L125 PetriNetUnfolderBase]: For 1467/2182 co-relation queries the response was YES. [2024-11-20 09:27:03,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2352 conditions, 709 events. 352/709 cut-off events. For 1467/2182 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 3891 event pairs, 23 based on Foata normal form. 62/709 useless extension candidates. Maximal degree in co-relation 2319. Up to 356 conditions per place. [2024-11-20 09:27:03,345 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-11-20 09:27:03,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 536 flow [2024-11-20 09:27:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 09:27:03,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 09:27:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 169 transitions. [2024-11-20 09:27:03,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2024-11-20 09:27:03,347 INFO L175 Difference]: Start difference. First operand has 73 places, 53 transitions, 419 flow. Second operand 6 states and 169 transitions. [2024-11-20 09:27:03,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 536 flow [2024-11-20 09:27:03,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 68 transitions, 512 flow, removed 7 selfloop flow, removed 5 redundant places. [2024-11-20 09:27:03,350 INFO L231 Difference]: Finished difference. Result has 69 places, 0 transitions, 0 flow [2024-11-20 09:27:03,351 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=69, PETRI_TRANSITIONS=0} [2024-11-20 09:27:03,351 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 26 predicate places. [2024-11-20 09:27:03,351 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 0 transitions, 0 flow [2024-11-20 09:27:03,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 09:27:03,354 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-20 09:27:03,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-20 09:27:03,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-20 09:27:03,355 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-20 09:27:03,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 09:27:03,356 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 09:27:03,359 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 09:27:03,359 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 09:27:03,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:27:03 BasicIcfg [2024-11-20 09:27:03,364 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 09:27:03,364 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 09:27:03,364 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 09:27:03,364 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 09:27:03,365 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:26:57" (3/4) ... [2024-11-20 09:27:03,367 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 09:27:03,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-20 09:27:03,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-20 09:27:03,370 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-20 09:27:03,374 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-20 09:27:03,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-20 09:27:03,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-20 09:27:03,375 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 09:27:03,465 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 09:27:03,466 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 09:27:03,466 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 09:27:03,467 INFO L158 Benchmark]: Toolchain (without parser) took 7336.46ms. Allocated memory was 165.7MB in the beginning and 295.7MB in the end (delta: 130.0MB). Free memory was 109.0MB in the beginning and 238.1MB in the end (delta: -129.1MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2024-11-20 09:27:03,467 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 09:27:03,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.56ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 86.5MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-20 09:27:03,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.28ms. Allocated memory is still 165.7MB. Free memory was 86.0MB in the beginning and 84.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 09:27:03,468 INFO L158 Benchmark]: Boogie Preprocessor took 63.12ms. Allocated memory is still 165.7MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 09:27:03,468 INFO L158 Benchmark]: RCFGBuilder took 506.50ms. Allocated memory is still 165.7MB. Free memory was 81.8MB in the beginning and 132.5MB in the end (delta: -50.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-20 09:27:03,468 INFO L158 Benchmark]: TraceAbstraction took 6025.35ms. Allocated memory was 165.7MB in the beginning and 295.7MB in the end (delta: 130.0MB). Free memory was 132.5MB in the beginning and 242.3MB in the end (delta: -109.8MB). Peak memory consumption was 179.0MB. Max. memory is 16.1GB. [2024-11-20 09:27:03,468 INFO L158 Benchmark]: Witness Printer took 101.85ms. Allocated memory is still 295.7MB. Free memory was 242.3MB in the beginning and 238.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 09:27:03,470 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 165.7MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.56ms. Allocated memory is still 165.7MB. Free memory was 109.0MB in the beginning and 86.5MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.28ms. Allocated memory is still 165.7MB. Free memory was 86.0MB in the beginning and 84.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.12ms. Allocated memory is still 165.7MB. Free memory was 84.4MB in the beginning and 82.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.50ms. Allocated memory is still 165.7MB. Free memory was 81.8MB in the beginning and 132.5MB in the end (delta: -50.7MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6025.35ms. Allocated memory was 165.7MB in the beginning and 295.7MB in the end (delta: 130.0MB). Free memory was 132.5MB in the beginning and 242.3MB in the end (delta: -109.8MB). Peak memory consumption was 179.0MB. Max. memory is 16.1GB. * Witness Printer took 101.85ms. Allocated memory is still 295.7MB. Free memory was 242.3MB in the beginning and 238.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 502 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 466 mSDsluCounter, 346 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1003 IncrementalHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 94 mSDtfsCounter, 1003 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=741occurred in iteration=5, InterpolantAutomatonStates: 77, 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, 1.6s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 803 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 09:27:03,495 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