./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/safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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/safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.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 40c6d23f476fb49e658cd83073483dddc1740bbd5f458e601d84fe47899d7237 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:17:44,592 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:17:44,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:17:44,669 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:17:44,671 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:17:44,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:17:44,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:17:44,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:17:44,704 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:17:44,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:17:44,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:17:44,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:17:44,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:17:44,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:17:44,710 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:17:44,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:17:44,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:17:44,711 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:17:44,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:17:44,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:17:44,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:17:44,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:17:44,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:17:44,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:17:44,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:17:44,716 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:17:44,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:17:44,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:17:44,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:17:44,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:17:44,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:17:44,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:17:44,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:17:44,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:17:44,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:17:44,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:17:44,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:17:44,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:17:44,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:17:44,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:17:44,719 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:17:44,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:17:44,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c6d23f476fb49e658cd83073483dddc1740bbd5f458e601d84fe47899d7237 [2024-10-24 12:17:45,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:17:45,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:17:45,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:17:45,115 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:17:45,116 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:17:45,117 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 12:17:46,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:17:47,007 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:17:47,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 12:17:47,023 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/853f745c0/619f4cd88c1f45ef95708aa2e3018016/FLAG1f33aea4f [2024-10-24 12:17:47,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/853f745c0/619f4cd88c1f45ef95708aa2e3018016 [2024-10-24 12:17:47,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:17:47,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:17:47,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:17:47,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:17:47,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:17:47,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:47,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282ad4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47, skipping insertion in model container [2024-10-24 12:17:47,366 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:47,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:17:47,607 WARN L248 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/safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1039,1052] [2024-10-24 12:17:47,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:17:47,820 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:17:47,834 WARN L248 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/safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1039,1052] [2024-10-24 12:17:47,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:17:47,943 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:17:47,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47 WrapperNode [2024-10-24 12:17:47,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:17:47,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:17:47,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:17:47,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:17:47,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:47,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,029 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2024-10-24 12:17:48,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:17:48,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:17:48,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:17:48,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:17:48,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,083 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]. [2024-10-24 12:17:48,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,105 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:17:48,106 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:17:48,106 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:17:48,106 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:17:48,107 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (1/1) ... [2024-10-24 12:17:48,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:17:48,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:17:48,160 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) [2024-10-24 12:17:48,163 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 [2024-10-24 12:17:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 12:17:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:17:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 12:17:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 12:17:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 12:17:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 12:17:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 12:17:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 12:17:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:17:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 12:17:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:17:48,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:17:48,215 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 12:17:48,477 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:17:48,479 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:17:48,810 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 12:17:48,810 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:17:48,966 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:17:48,967 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 12:17:48,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:17:48 BoogieIcfgContainer [2024-10-24 12:17:48,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:17:48,970 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:17:48,970 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:17:48,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:17:48,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:17:47" (1/3) ... [2024-10-24 12:17:48,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4e20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:17:48, skipping insertion in model container [2024-10-24 12:17:48,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:17:47" (2/3) ... [2024-10-24 12:17:48,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a4e20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:17:48, skipping insertion in model container [2024-10-24 12:17:48,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:17:48" (3/3) ... [2024-10-24 12:17:48,976 INFO L112 eAbstractionObserver]: Analyzing ICFG safe005_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-10-24 12:17:48,993 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:17:48,994 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 12:17:48,994 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 12:17:49,040 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 12:17:49,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 40 transitions, 92 flow [2024-10-24 12:17:49,102 INFO L124 PetriNetUnfolderBase]: 1/37 cut-off events. [2024-10-24 12:17:49,102 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 12:17:49,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 76 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-10-24 12:17:49,106 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 40 transitions, 92 flow [2024-10-24 12:17:49,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 37 transitions, 83 flow [2024-10-24 12:17:49,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:17:49,124 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;@56137560, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:17:49,125 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 12:17:49,129 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 12:17:49,130 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-10-24 12:17:49,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 12:17:49,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:49,131 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 12:17:49,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:49,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:49,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1756285544, now seen corresponding path program 1 times [2024-10-24 12:17:49,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:49,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253908857] [2024-10-24 12:17:49,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:49,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:49,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:49,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:49,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253908857] [2024-10-24 12:17:49,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253908857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:49,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:49,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 12:17:49,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688899839] [2024-10-24 12:17:49,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:49,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 12:17:49,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:49,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 12:17:49,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 12:17:49,620 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 40 [2024-10-24 12:17:49,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 83 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-10-24 12:17:49,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:49,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 40 [2024-10-24 12:17:49,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:50,018 INFO L124 PetriNetUnfolderBase]: 453/885 cut-off events. [2024-10-24 12:17:50,019 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-24 12:17:50,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1622 conditions, 885 events. 453/885 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5499 event pairs, 72 based on Foata normal form. 36/896 useless extension candidates. Maximal degree in co-relation 1611. Up to 562 conditions per place. [2024-10-24 12:17:50,035 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 25 selfloop transitions, 2 changer transitions 2/46 dead transitions. [2024-10-24 12:17:50,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 46 transitions, 162 flow [2024-10-24 12:17:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 12:17:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 12:17:50,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-10-24 12:17:50,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7666666666666667 [2024-10-24 12:17:50,051 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 83 flow. Second operand 3 states and 92 transitions. [2024-10-24 12:17:50,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 46 transitions, 162 flow [2024-10-24 12:17:50,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 46 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 12:17:50,058 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 78 flow [2024-10-24 12:17:50,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-10-24 12:17:50,066 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2024-10-24 12:17:50,068 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 78 flow [2024-10-24 12:17:50,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 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) [2024-10-24 12:17:50,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:50,069 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:17:50,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:17:50,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:50,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:50,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1077292502, now seen corresponding path program 1 times [2024-10-24 12:17:50,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:50,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9760162] [2024-10-24 12:17:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:50,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:50,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:50,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:50,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9760162] [2024-10-24 12:17:50,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9760162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:50,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:50,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:17:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599368460] [2024-10-24 12:17:50,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:50,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:17:50,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:50,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:17:50,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:17:50,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 40 [2024-10-24 12:17:50,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-10-24 12:17:50,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:50,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 40 [2024-10-24 12:17:50,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:51,019 INFO L124 PetriNetUnfolderBase]: 1354/2345 cut-off events. [2024-10-24 12:17:51,020 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-10-24 12:17:51,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4566 conditions, 2345 events. 1354/2345 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 15734 event pairs, 352 based on Foata normal form. 0/2251 useless extension candidates. Maximal degree in co-relation 4556. Up to 1288 conditions per place. [2024-10-24 12:17:51,038 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 30 selfloop transitions, 3 changer transitions 43/88 dead transitions. [2024-10-24 12:17:51,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 88 transitions, 354 flow [2024-10-24 12:17:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:17:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 12:17:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 198 transitions. [2024-10-24 12:17:51,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-10-24 12:17:51,044 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 78 flow. Second operand 8 states and 198 transitions. [2024-10-24 12:17:51,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 88 transitions, 354 flow [2024-10-24 12:17:51,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 88 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 12:17:51,048 INFO L231 Difference]: Finished difference. Result has 53 places, 35 transitions, 107 flow [2024-10-24 12:17:51,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=107, PETRI_PLACES=53, PETRI_TRANSITIONS=35} [2024-10-24 12:17:51,050 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 7 predicate places. [2024-10-24 12:17:51,050 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 35 transitions, 107 flow [2024-10-24 12:17:51,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-10-24 12:17:51,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:51,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:17:51,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 12:17:51,079 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:51,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:51,082 INFO L85 PathProgramCache]: Analyzing trace with hash 710736299, now seen corresponding path program 1 times [2024-10-24 12:17:51,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:51,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724028738] [2024-10-24 12:17:51,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:51,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:51,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724028738] [2024-10-24 12:17:51,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724028738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:51,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:51,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:17:51,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724701570] [2024-10-24 12:17:51,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:51,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:17:51,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:51,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:17:51,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:17:51,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-24 12:17:51,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 35 transitions, 107 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2024-10-24 12:17:51,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:51,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-24 12:17:51,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:52,332 INFO L124 PetriNetUnfolderBase]: 2661/4500 cut-off events. [2024-10-24 12:17:52,332 INFO L125 PetriNetUnfolderBase]: For 2509/2509 co-relation queries the response was YES. [2024-10-24 12:17:52,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10518 conditions, 4500 events. 2661/4500 cut-off events. For 2509/2509 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 30542 event pairs, 251 based on Foata normal form. 142/4614 useless extension candidates. Maximal degree in co-relation 10503. Up to 1490 conditions per place. [2024-10-24 12:17:52,360 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 42 selfloop transitions, 7 changer transitions 61/120 dead transitions. [2024-10-24 12:17:52,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 120 transitions, 605 flow [2024-10-24 12:17:52,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:17:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 12:17:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 239 transitions. [2024-10-24 12:17:52,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5975 [2024-10-24 12:17:52,364 INFO L175 Difference]: Start difference. First operand has 53 places, 35 transitions, 107 flow. Second operand 10 states and 239 transitions. [2024-10-24 12:17:52,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 120 transitions, 605 flow [2024-10-24 12:17:52,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 120 transitions, 574 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-10-24 12:17:52,388 INFO L231 Difference]: Finished difference. Result has 62 places, 40 transitions, 190 flow [2024-10-24 12:17:52,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=190, PETRI_PLACES=62, PETRI_TRANSITIONS=40} [2024-10-24 12:17:52,389 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2024-10-24 12:17:52,390 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 40 transitions, 190 flow [2024-10-24 12:17:52,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2024-10-24 12:17:52,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:52,390 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:17:52,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 12:17:52,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:52,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:52,391 INFO L85 PathProgramCache]: Analyzing trace with hash -810813780, now seen corresponding path program 1 times [2024-10-24 12:17:52,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:52,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092499932] [2024-10-24 12:17:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:52,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:52,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092499932] [2024-10-24 12:17:52,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092499932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:52,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:52,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:17:52,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980626199] [2024-10-24 12:17:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:52,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:17:52,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:17:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:17:52,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-24 12:17:52,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 40 transitions, 190 flow. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2024-10-24 12:17:52,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:52,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-24 12:17:52,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:53,611 INFO L124 PetriNetUnfolderBase]: 3304/5769 cut-off events. [2024-10-24 12:17:53,612 INFO L125 PetriNetUnfolderBase]: For 11226/11226 co-relation queries the response was YES. [2024-10-24 12:17:53,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16628 conditions, 5769 events. 3304/5769 cut-off events. For 11226/11226 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 42755 event pairs, 417 based on Foata normal form. 114/5830 useless extension candidates. Maximal degree in co-relation 16605. Up to 1824 conditions per place. [2024-10-24 12:17:53,645 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 47 selfloop transitions, 8 changer transitions 40/105 dead transitions. [2024-10-24 12:17:53,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 105 transitions, 688 flow [2024-10-24 12:17:53,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:17:53,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 12:17:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-10-24 12:17:53,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-10-24 12:17:53,647 INFO L175 Difference]: Start difference. First operand has 62 places, 40 transitions, 190 flow. Second operand 7 states and 176 transitions. [2024-10-24 12:17:53,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 105 transitions, 688 flow [2024-10-24 12:17:53,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 105 transitions, 665 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-10-24 12:17:53,692 INFO L231 Difference]: Finished difference. Result has 62 places, 39 transitions, 193 flow [2024-10-24 12:17:53,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=193, PETRI_PLACES=62, PETRI_TRANSITIONS=39} [2024-10-24 12:17:53,693 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2024-10-24 12:17:53,693 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 39 transitions, 193 flow [2024-10-24 12:17:53,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2024-10-24 12:17:53,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:53,693 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] [2024-10-24 12:17:53,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 12:17:53,694 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:53,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:53,694 INFO L85 PathProgramCache]: Analyzing trace with hash -340918197, now seen corresponding path program 1 times [2024-10-24 12:17:53,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:53,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332566083] [2024-10-24 12:17:53,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:53,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:53,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:53,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:53,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332566083] [2024-10-24 12:17:53,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332566083] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:53,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:53,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:17:53,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559269550] [2024-10-24 12:17:53,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:53,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:17:53,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:53,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:17:53,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:17:53,954 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-24 12:17:53,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 39 transitions, 193 flow. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2024-10-24 12:17:53,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:53,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-24 12:17:53,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:55,162 INFO L124 PetriNetUnfolderBase]: 3560/6433 cut-off events. [2024-10-24 12:17:55,166 INFO L125 PetriNetUnfolderBase]: For 10428/10428 co-relation queries the response was YES. [2024-10-24 12:17:55,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17606 conditions, 6433 events. 3560/6433 cut-off events. For 10428/10428 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 50914 event pairs, 643 based on Foata normal form. 118/6488 useless extension candidates. Maximal degree in co-relation 17581. Up to 1140 conditions per place. [2024-10-24 12:17:55,210 INFO L140 encePairwiseOnDemand]: 31/40 looper letters, 57 selfloop transitions, 8 changer transitions 67/142 dead transitions. [2024-10-24 12:17:55,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 142 transitions, 919 flow [2024-10-24 12:17:55,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 12:17:55,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-24 12:17:55,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 267 transitions. [2024-10-24 12:17:55,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6068181818181818 [2024-10-24 12:17:55,212 INFO L175 Difference]: Start difference. First operand has 62 places, 39 transitions, 193 flow. Second operand 11 states and 267 transitions. [2024-10-24 12:17:55,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 142 transitions, 919 flow [2024-10-24 12:17:55,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 142 transitions, 831 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-10-24 12:17:55,237 INFO L231 Difference]: Finished difference. Result has 73 places, 39 transitions, 209 flow [2024-10-24 12:17:55,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=209, PETRI_PLACES=73, PETRI_TRANSITIONS=39} [2024-10-24 12:17:55,238 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2024-10-24 12:17:55,238 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 39 transitions, 209 flow [2024-10-24 12:17:55,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 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) [2024-10-24 12:17:55,239 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:55,239 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] [2024-10-24 12:17:55,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:17:55,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:55,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:55,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1218522830, now seen corresponding path program 1 times [2024-10-24 12:17:55,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:55,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727333699] [2024-10-24 12:17:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:55,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:55,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:55,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727333699] [2024-10-24 12:17:55,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727333699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:55,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:55,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:17:55,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926499574] [2024-10-24 12:17:55,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:55,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:17:55,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:17:55,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:17:55,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-10-24 12:17:55,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 39 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-10-24 12:17:55,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:55,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-10-24 12:17:55,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:55,977 INFO L124 PetriNetUnfolderBase]: 1456/2698 cut-off events. [2024-10-24 12:17:55,977 INFO L125 PetriNetUnfolderBase]: For 6625/6699 co-relation queries the response was YES. [2024-10-24 12:17:55,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7569 conditions, 2698 events. 1456/2698 cut-off events. For 6625/6699 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 19251 event pairs, 452 based on Foata normal form. 102/2694 useless extension candidates. Maximal degree in co-relation 7538. Up to 1582 conditions per place. [2024-10-24 12:17:55,999 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 25 selfloop transitions, 3 changer transitions 31/74 dead transitions. [2024-10-24 12:17:55,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 74 transitions, 503 flow [2024-10-24 12:17:56,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:17:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 12:17:56,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 166 transitions. [2024-10-24 12:17:56,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5928571428571429 [2024-10-24 12:17:56,001 INFO L175 Difference]: Start difference. First operand has 73 places, 39 transitions, 209 flow. Second operand 7 states and 166 transitions. [2024-10-24 12:17:56,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 74 transitions, 503 flow [2024-10-24 12:17:56,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 74 transitions, 443 flow, removed 27 selfloop flow, removed 10 redundant places. [2024-10-24 12:17:56,014 INFO L231 Difference]: Finished difference. Result has 68 places, 38 transitions, 182 flow [2024-10-24 12:17:56,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=182, PETRI_PLACES=68, PETRI_TRANSITIONS=38} [2024-10-24 12:17:56,015 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 22 predicate places. [2024-10-24 12:17:56,015 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 38 transitions, 182 flow [2024-10-24 12:17:56,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 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) [2024-10-24 12:17:56,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:56,016 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] [2024-10-24 12:17:56,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 12:17:56,016 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:56,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1015216882, now seen corresponding path program 1 times [2024-10-24 12:17:56,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:56,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016471571] [2024-10-24 12:17:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:56,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:56,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016471571] [2024-10-24 12:17:56,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016471571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:56,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:56,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:17:56,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639988602] [2024-10-24 12:17:56,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:56,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:17:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:56,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:17:56,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:17:56,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-10-24 12:17:56,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 38 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-10-24 12:17:56,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:56,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-10-24 12:17:56,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:56,807 INFO L124 PetriNetUnfolderBase]: 2943/4871 cut-off events. [2024-10-24 12:17:56,808 INFO L125 PetriNetUnfolderBase]: For 4403/4542 co-relation queries the response was YES. [2024-10-24 12:17:56,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11820 conditions, 4871 events. 2943/4871 cut-off events. For 4403/4542 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 32770 event pairs, 412 based on Foata normal form. 336/5093 useless extension candidates. Maximal degree in co-relation 11792. Up to 2416 conditions per place. [2024-10-24 12:17:56,841 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 40 selfloop transitions, 5 changer transitions 5/65 dead transitions. [2024-10-24 12:17:56,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 65 transitions, 384 flow [2024-10-24 12:17:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:17:56,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 12:17:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-10-24 12:17:56,844 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-10-24 12:17:56,844 INFO L175 Difference]: Start difference. First operand has 68 places, 38 transitions, 182 flow. Second operand 4 states and 110 transitions. [2024-10-24 12:17:56,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 65 transitions, 384 flow [2024-10-24 12:17:56,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 65 transitions, 358 flow, removed 7 selfloop flow, removed 9 redundant places. [2024-10-24 12:17:56,859 INFO L231 Difference]: Finished difference. Result has 60 places, 41 transitions, 192 flow [2024-10-24 12:17:56,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=41} [2024-10-24 12:17:56,860 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places. [2024-10-24 12:17:56,861 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 41 transitions, 192 flow [2024-10-24 12:17:56,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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) [2024-10-24 12:17:56,861 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:56,861 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] [2024-10-24 12:17:56,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:17:56,861 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:56,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash -668981893, now seen corresponding path program 1 times [2024-10-24 12:17:56,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:56,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164108391] [2024-10-24 12:17:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:56,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:57,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:57,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164108391] [2024-10-24 12:17:57,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164108391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:57,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:57,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:17:57,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852448785] [2024-10-24 12:17:57,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:57,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:17:57,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:17:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:17:57,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-10-24 12:17:57,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 41 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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) [2024-10-24 12:17:57,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:57,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-10-24 12:17:57,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:57,476 INFO L124 PetriNetUnfolderBase]: 2121/3576 cut-off events. [2024-10-24 12:17:57,476 INFO L125 PetriNetUnfolderBase]: For 3053/3103 co-relation queries the response was YES. [2024-10-24 12:17:57,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9547 conditions, 3576 events. 2121/3576 cut-off events. For 3053/3103 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 22053 event pairs, 171 based on Foata normal form. 270/3771 useless extension candidates. Maximal degree in co-relation 9524. Up to 1273 conditions per place. [2024-10-24 12:17:57,494 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 49 selfloop transitions, 8 changer transitions 6/78 dead transitions. [2024-10-24 12:17:57,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 78 transitions, 476 flow [2024-10-24 12:17:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:17:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 12:17:57,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 137 transitions. [2024-10-24 12:17:57,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.685 [2024-10-24 12:17:57,496 INFO L175 Difference]: Start difference. First operand has 60 places, 41 transitions, 192 flow. Second operand 5 states and 137 transitions. [2024-10-24 12:17:57,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 78 transitions, 476 flow [2024-10-24 12:17:57,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 461 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-24 12:17:57,501 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 227 flow [2024-10-24 12:17:57,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=227, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-10-24 12:17:57,502 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-10-24 12:17:57,502 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 227 flow [2024-10-24 12:17:57,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 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) [2024-10-24 12:17:57,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:57,503 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] [2024-10-24 12:17:57,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 12:17:57,503 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:57,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:57,504 INFO L85 PathProgramCache]: Analyzing trace with hash -297732342, now seen corresponding path program 1 times [2024-10-24 12:17:57,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:57,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536246176] [2024-10-24 12:17:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:57,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:57,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:57,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536246176] [2024-10-24 12:17:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536246176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:57,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:57,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:17:57,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921626816] [2024-10-24 12:17:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:57,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:17:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:57,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:17:57,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:17:57,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 40 [2024-10-24 12:17:57,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 227 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-10-24 12:17:57,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:57,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 40 [2024-10-24 12:17:57,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:58,026 INFO L124 PetriNetUnfolderBase]: 1322/2219 cut-off events. [2024-10-24 12:17:58,027 INFO L125 PetriNetUnfolderBase]: For 3285/3309 co-relation queries the response was YES. [2024-10-24 12:17:58,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6564 conditions, 2219 events. 1322/2219 cut-off events. For 3285/3309 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12034 event pairs, 124 based on Foata normal form. 150/2305 useless extension candidates. Maximal degree in co-relation 6540. Up to 828 conditions per place. [2024-10-24 12:17:58,038 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 42 selfloop transitions, 11 changer transitions 6/74 dead transitions. [2024-10-24 12:17:58,038 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 74 transitions, 457 flow [2024-10-24 12:17:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:17:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 12:17:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-10-24 12:17:58,039 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6291666666666667 [2024-10-24 12:17:58,040 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 227 flow. Second operand 6 states and 151 transitions. [2024-10-24 12:17:58,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 74 transitions, 457 flow [2024-10-24 12:17:58,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 74 transitions, 411 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-10-24 12:17:58,049 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 228 flow [2024-10-24 12:17:58,049 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-10-24 12:17:58,050 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-10-24 12:17:58,050 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 228 flow [2024-10-24 12:17:58,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 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) [2024-10-24 12:17:58,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:58,051 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, 1, 1, 1, 1] [2024-10-24 12:17:58,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 12:17:58,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:58,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:58,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1373313618, now seen corresponding path program 1 times [2024-10-24 12:17:58,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:58,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631250226] [2024-10-24 12:17:58,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:58,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:17:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:17:58,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:17:58,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631250226] [2024-10-24 12:17:58,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631250226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:17:58,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:17:58,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:17:58,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292703317] [2024-10-24 12:17:58,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:17:58,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:17:58,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:17:58,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:17:58,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:17:58,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-24 12:17:58,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2024-10-24 12:17:58,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:17:58,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-24 12:17:58,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:17:58,564 INFO L124 PetriNetUnfolderBase]: 870/1695 cut-off events. [2024-10-24 12:17:58,565 INFO L125 PetriNetUnfolderBase]: For 1857/1891 co-relation queries the response was YES. [2024-10-24 12:17:58,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4602 conditions, 1695 events. 870/1695 cut-off events. For 1857/1891 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 10165 event pairs, 305 based on Foata normal form. 8/1636 useless extension candidates. Maximal degree in co-relation 4580. Up to 632 conditions per place. [2024-10-24 12:17:58,574 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 32 selfloop transitions, 5 changer transitions 22/75 dead transitions. [2024-10-24 12:17:58,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 75 transitions, 432 flow [2024-10-24 12:17:58,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:17:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 12:17:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2024-10-24 12:17:58,576 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-10-24 12:17:58,576 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 228 flow. Second operand 6 states and 138 transitions. [2024-10-24 12:17:58,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 75 transitions, 432 flow [2024-10-24 12:17:58,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 75 transitions, 360 flow, removed 18 selfloop flow, removed 8 redundant places. [2024-10-24 12:17:58,672 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 168 flow [2024-10-24 12:17:58,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=168, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2024-10-24 12:17:58,673 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2024-10-24 12:17:58,673 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 168 flow [2024-10-24 12:17:58,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 6 states have internal predecessors, (98), 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) [2024-10-24 12:17:58,674 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:17:58,674 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, 1, 1, 1, 1] [2024-10-24 12:17:58,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 12:17:58,674 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:17:58,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:17:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1684037312, now seen corresponding path program 2 times [2024-10-24 12:17:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:17:58,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119316477] [2024-10-24 12:17:58,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:17:58,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:17:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 12:18:00,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:00,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119316477] [2024-10-24 12:18:00,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119316477] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:00,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:00,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 12:18:00,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204120411] [2024-10-24 12:18:00,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:00,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 12:18:00,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:00,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 12:18:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 12:18:00,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 40 [2024-10-24 12:18:00,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 168 flow. Second operand has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 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) [2024-10-24 12:18:00,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:00,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 40 [2024-10-24 12:18:00,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:00,645 INFO L124 PetriNetUnfolderBase]: 541/1049 cut-off events. [2024-10-24 12:18:00,645 INFO L125 PetriNetUnfolderBase]: For 396/396 co-relation queries the response was YES. [2024-10-24 12:18:00,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2320 conditions, 1049 events. 541/1049 cut-off events. For 396/396 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5704 event pairs, 190 based on Foata normal form. 8/970 useless extension candidates. Maximal degree in co-relation 2299. Up to 401 conditions per place. [2024-10-24 12:18:00,653 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 22 selfloop transitions, 4 changer transitions 24/71 dead transitions. [2024-10-24 12:18:00,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 71 transitions, 351 flow [2024-10-24 12:18:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:18:00,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 12:18:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 185 transitions. [2024-10-24 12:18:00,662 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.578125 [2024-10-24 12:18:00,662 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 168 flow. Second operand 8 states and 185 transitions. [2024-10-24 12:18:00,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 71 transitions, 351 flow [2024-10-24 12:18:00,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 71 transitions, 308 flow, removed 8 selfloop flow, removed 10 redundant places. [2024-10-24 12:18:00,667 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 154 flow [2024-10-24 12:18:00,668 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=154, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-10-24 12:18:00,668 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 16 predicate places. [2024-10-24 12:18:00,668 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 154 flow [2024-10-24 12:18:00,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.77777777777778) internal successors, (169), 9 states have internal predecessors, (169), 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) [2024-10-24 12:18:00,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:00,669 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, 1, 1, 1, 1] [2024-10-24 12:18:00,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 12:18:00,669 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 12:18:00,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:00,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1237577064, now seen corresponding path program 3 times [2024-10-24 12:18:00,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:00,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168726878] [2024-10-24 12:18:00,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:00,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 12:18:00,799 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 12:18:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 12:18:00,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 12:18:00,913 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 12:18:00,915 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-10-24 12:18:00,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-10-24 12:18:00,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-10-24 12:18:00,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 12:18:00,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 12:18:00,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-10-24 12:18:00,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 12:18:00,920 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:18:01,012 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 12:18:01,012 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 12:18:01,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:18:01 BasicIcfg [2024-10-24 12:18:01,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 12:18:01,020 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 12:18:01,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 12:18:01,021 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 12:18:01,021 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:17:48" (3/4) ... [2024-10-24 12:18:01,022 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-24 12:18:01,123 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 12:18:01,124 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 12:18:01,124 INFO L158 Benchmark]: Toolchain (without parser) took 13770.75ms. Allocated memory was 218.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 190.4MB in the beginning and 1.1GB in the end (delta: -881.0MB). Peak memory consumption was 132.0MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,124 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 12:18:01,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.12ms. Allocated memory is still 218.1MB. Free memory was 190.2MB in the beginning and 168.2MB in the end (delta: 22.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.13ms. Allocated memory is still 218.1MB. Free memory was 168.2MB in the beginning and 165.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,125 INFO L158 Benchmark]: Boogie Preprocessor took 75.42ms. Allocated memory is still 218.1MB. Free memory was 165.1MB in the beginning and 161.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,125 INFO L158 Benchmark]: RCFGBuilder took 861.59ms. Allocated memory is still 218.1MB. Free memory was 161.9MB in the beginning and 142.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,125 INFO L158 Benchmark]: TraceAbstraction took 12049.99ms. Allocated memory was 218.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 141.5MB in the beginning and 1.1GB in the end (delta: -941.4MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,126 INFO L158 Benchmark]: Witness Printer took 103.34ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 12:18:01,128 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.12ms. Allocated memory is still 218.1MB. Free memory was 190.2MB in the beginning and 168.2MB in the end (delta: 22.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.13ms. Allocated memory is still 218.1MB. Free memory was 168.2MB in the beginning and 165.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.42ms. Allocated memory is still 218.1MB. Free memory was 165.1MB in the beginning and 161.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 861.59ms. Allocated memory is still 218.1MB. Free memory was 161.9MB in the beginning and 142.3MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12049.99ms. Allocated memory was 218.1MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 141.5MB in the beginning and 1.1GB in the end (delta: -941.4MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. * Witness Printer took 103.34ms. Allocated memory is still 1.2GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p2_EBX = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L721] 0 _Bool x$flush_delayed; [L722] 0 int x$mem_tmp; [L723] 0 _Bool x$r_buff0_thd0; [L724] 0 _Bool x$r_buff0_thd1; [L725] 0 _Bool x$r_buff0_thd2; [L726] 0 _Bool x$r_buff0_thd3; [L727] 0 _Bool x$r_buff1_thd0; [L728] 0 _Bool x$r_buff1_thd1; [L729] 0 _Bool x$r_buff1_thd2; [L730] 0 _Bool x$r_buff1_thd3; [L731] 0 _Bool x$read_delayed; [L732] 0 int *x$read_delayed_var; [L733] 0 int x$w_buff0; [L734] 0 _Bool x$w_buff0_used; [L735] 0 int x$w_buff1; [L736] 0 _Bool x$w_buff1_used; [L738] 0 int y = 0; [L739] 0 _Bool weak$$choice0; [L740] 0 _Bool weak$$choice2; [L831] 0 pthread_t t1897; [L832] FCALL, FORK 0 pthread_create(&t1897, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1897=-2, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L833] 0 pthread_t t1898; [L834] FCALL, FORK 0 pthread_create(&t1898, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1897=-2, t1898=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L835] 0 pthread_t t1899; [L836] FCALL, FORK 0 pthread_create(&t1899, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1897=-2, t1898=-1, t1899=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L774] 2 x$w_buff1 = x$w_buff0 [L775] 2 x$w_buff0 = 1 [L776] 2 x$w_buff1_used = x$w_buff0_used [L777] 2 x$w_buff0_used = (_Bool)1 [L778] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L778] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L779] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L780] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L781] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L782] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L783] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L786] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L803] 3 __unbuffered_p2_EAX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L806] 3 __unbuffered_p2_EBX = y VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L744] 1 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L809] 3 x = x$w_buff0_used && x$r_buff0_thd3 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd3 ? x$w_buff1 : x) [L810] 3 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$w_buff0_used [L811] 3 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$w_buff1_used [L812] 3 x$r_buff0_thd3 = x$w_buff0_used && x$r_buff0_thd3 ? (_Bool)0 : x$r_buff0_thd3 [L813] 3 x$r_buff1_thd3 = x$w_buff0_used && x$r_buff0_thd3 || x$w_buff1_used && x$r_buff1_thd3 ? (_Bool)0 : x$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L749] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L750] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L751] 1 x$flush_delayed = weak$$choice2 [L752] 1 x$mem_tmp = x [L753] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L754] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L755] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L756] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L757] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L758] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L759] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L760] 1 __unbuffered_p0_EAX = x [L761] 1 x = x$flush_delayed ? x$mem_tmp : x [L762] 1 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L789] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L790] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L791] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L792] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L793] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L796] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L816] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L767] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L838] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1897=-2, t1898=-1, t1899=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L840] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L840] RET 0 assume_abort_if_not(main$tmp_guard0) [L842] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L843] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L844] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L845] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L846] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1897=-2, t1898=-1, t1899=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L849] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 1) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1897=-2, t1898=-1, t1899=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L851] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=1, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 66 locations, 6 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: 11.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 597 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 576 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1410 IncrementalHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 42 mSDtfsCounter, 1410 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred in iteration=9, InterpolantAutomatonStates: 75, 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, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 1009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-24 12:18:01,184 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE