./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/safe014_pso.oepc_pso.opt_tso.oepc_tso.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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 12:18:18,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 12:18:18,786 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 12:18:18,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 12:18:18,796 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 12:18:18,822 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 12:18:18,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 12:18:18,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 12:18:18,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 12:18:18,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 12:18:18,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 12:18:18,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 12:18:18,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 12:18:18,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 12:18:18,826 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 12:18:18,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 12:18:18,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 12:18:18,827 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 12:18:18,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 12:18:18,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 12:18:18,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 12:18:18,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 12:18:18,833 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 12:18:18,833 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 12:18:18,833 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 12:18:18,833 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 12:18:18,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 12:18:18,833 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 12:18:18,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 12:18:18,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 12:18:18,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 12:18:18,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 12:18:18,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:18:18,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 12:18:18,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 12:18:18,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 12:18:18,835 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 12:18:18,836 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 12:18:18,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 12:18:18,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 12:18:18,838 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 12:18:18,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 12:18:18,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26c7def9550acbb8db0f014014632a2eeeeca7df9ce503e9999e1bc5b1d84980 [2024-10-24 12:18:19,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 12:18:19,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 12:18:19,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 12:18:19,219 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 12:18:19,220 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 12:18:19,221 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 12:18:20,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 12:18:20,987 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 12:18:20,988 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 12:18:21,008 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e62b5f52/a24a729ef31a469cb87a1087c4a03b46/FLAGc4fe9a0d3 [2024-10-24 12:18:21,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e62b5f52/a24a729ef31a469cb87a1087c4a03b46 [2024-10-24 12:18:21,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 12:18:21,272 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 12:18:21,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 12:18:21,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 12:18:21,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 12:18:21,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338e904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21, skipping insertion in model container [2024-10-24 12:18:21,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 12:18:21,553 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-10-24 12:18:21,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:18:21,753 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 12:18:21,767 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/safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-10-24 12:18:21,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 12:18:21,847 INFO L204 MainTranslator]: Completed translation [2024-10-24 12:18:21,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21 WrapperNode [2024-10-24 12:18:21,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 12:18:21,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 12:18:21,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 12:18:21,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 12:18:21,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,903 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-10-24 12:18:21,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 12:18:21,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 12:18:21,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 12:18:21,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 12:18:21,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,937 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 12:18:21,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,938 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,947 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,950 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 12:18:21,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 12:18:21,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 12:18:21,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 12:18:21,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (1/1) ... [2024-10-24 12:18:21,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 12:18:21,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 12:18:22,004 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 12:18:22,012 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 12:18:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 12:18:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 12:18:22,067 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 12:18:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 12:18:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 12:18:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 12:18:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 12:18:22,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 12:18:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 12:18:22,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 12:18:22,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 12:18:22,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 12:18:22,072 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 12:18:22,207 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 12:18:22,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 12:18:22,388 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 12:18:22,388 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 12:18:22,493 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 12:18:22,494 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 12:18:22,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:18:22 BoogieIcfgContainer [2024-10-24 12:18:22,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 12:18:22,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 12:18:22,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 12:18:22,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 12:18:22,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:18:21" (1/3) ... [2024-10-24 12:18:22,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce8c63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:18:22, skipping insertion in model container [2024-10-24 12:18:22,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:18:21" (2/3) ... [2024-10-24 12:18:22,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce8c63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:18:22, skipping insertion in model container [2024-10-24 12:18:22,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:18:22" (3/3) ... [2024-10-24 12:18:22,507 INFO L112 eAbstractionObserver]: Analyzing ICFG safe014_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 12:18:22,528 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 12:18:22,528 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 12:18:22,528 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 12:18:22,573 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 12:18:22,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2024-10-24 12:18:22,636 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2024-10-24 12:18:22,636 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 12:18:22,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-10-24 12:18:22,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2024-10-24 12:18:22,646 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2024-10-24 12:18:22,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 12:18:22,666 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;@592f05eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 12:18:22,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-24 12:18:22,685 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 12:18:22,685 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-10-24 12:18:22,685 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 12:18:22,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:22,690 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:18:22,690 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:22,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash 958553775, now seen corresponding path program 1 times [2024-10-24 12:18:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:22,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333066773] [2024-10-24 12:18:22,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:23,354 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 12:18:23,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:23,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333066773] [2024-10-24 12:18:23,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333066773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:23,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:23,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:18:23,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223420108] [2024-10-24 12:18:23,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:23,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:18:23,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:23,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:18:23,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:18:23,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-24 12:18:23,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 12:18:23,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:23,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-24 12:18:23,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:23,908 INFO L124 PetriNetUnfolderBase]: 1129/2214 cut-off events. [2024-10-24 12:18:23,909 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-10-24 12:18:23,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4029 conditions, 2214 events. 1129/2214 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 16134 event pairs, 322 based on Foata normal form. 73/2218 useless extension candidates. Maximal degree in co-relation 4018. Up to 814 conditions per place. [2024-10-24 12:18:23,934 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 29 selfloop transitions, 6 changer transitions 35/83 dead transitions. [2024-10-24 12:18:23,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 83 transitions, 321 flow [2024-10-24 12:18:23,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:18:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 12:18:23,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 184 transitions. [2024-10-24 12:18:23,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6917293233082706 [2024-10-24 12:18:23,951 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 7 states and 184 transitions. [2024-10-24 12:18:23,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 83 transitions, 321 flow [2024-10-24 12:18:23,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 83 transitions, 316 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-24 12:18:23,961 INFO L231 Difference]: Finished difference. Result has 51 places, 37 transitions, 144 flow [2024-10-24 12:18:23,963 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=144, PETRI_PLACES=51, PETRI_TRANSITIONS=37} [2024-10-24 12:18:23,967 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2024-10-24 12:18:23,968 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 37 transitions, 144 flow [2024-10-24 12:18:23,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 12:18:23,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:23,969 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:18:23,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 12:18:23,969 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:23,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:23,970 INFO L85 PathProgramCache]: Analyzing trace with hash -339610418, now seen corresponding path program 1 times [2024-10-24 12:18:23,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:23,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027322135] [2024-10-24 12:18:23,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:23,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:24,237 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 12:18:24,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:24,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027322135] [2024-10-24 12:18:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027322135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:24,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:24,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:18:24,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681932808] [2024-10-24 12:18:24,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:24,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:18:24,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:24,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:18:24,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:18:24,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-24 12:18:24,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 37 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 12:18:24,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:24,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-24 12:18:24,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:24,711 INFO L124 PetriNetUnfolderBase]: 948/1926 cut-off events. [2024-10-24 12:18:24,711 INFO L125 PetriNetUnfolderBase]: For 2206/2214 co-relation queries the response was YES. [2024-10-24 12:18:24,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5299 conditions, 1926 events. 948/1926 cut-off events. For 2206/2214 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 13420 event pairs, 186 based on Foata normal form. 65/1949 useless extension candidates. Maximal degree in co-relation 5283. Up to 572 conditions per place. [2024-10-24 12:18:24,728 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 36 selfloop transitions, 7 changer transitions 52/108 dead transitions. [2024-10-24 12:18:24,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 108 transitions, 702 flow [2024-10-24 12:18:24,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:18:24,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 12:18:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 245 transitions. [2024-10-24 12:18:24,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447368421052632 [2024-10-24 12:18:24,735 INFO L175 Difference]: Start difference. First operand has 51 places, 37 transitions, 144 flow. Second operand 10 states and 245 transitions. [2024-10-24 12:18:24,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 108 transitions, 702 flow [2024-10-24 12:18:24,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 108 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 12:18:24,752 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 210 flow [2024-10-24 12:18:24,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2024-10-24 12:18:24,754 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 21 predicate places. [2024-10-24 12:18:24,754 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 210 flow [2024-10-24 12:18:24,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 12:18:24,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:24,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:18:24,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 12:18:24,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:24,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:24,757 INFO L85 PathProgramCache]: Analyzing trace with hash -899264144, now seen corresponding path program 1 times [2024-10-24 12:18:24,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:24,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481387884] [2024-10-24 12:18:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:24,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:24,985 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 12:18:24,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:24,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481387884] [2024-10-24 12:18:24,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481387884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:24,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:24,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:18:24,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7346936] [2024-10-24 12:18:24,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:24,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:18:24,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:24,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:18:24,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:18:25,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-24 12:18:25,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 12:18:25,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:25,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-24 12:18:25,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:25,434 INFO L124 PetriNetUnfolderBase]: 779/1560 cut-off events. [2024-10-24 12:18:25,434 INFO L125 PetriNetUnfolderBase]: For 4177/4189 co-relation queries the response was YES. [2024-10-24 12:18:25,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4988 conditions, 1560 events. 779/1560 cut-off events. For 4177/4189 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 10433 event pairs, 153 based on Foata normal form. 46/1560 useless extension candidates. Maximal degree in co-relation 4963. Up to 560 conditions per place. [2024-10-24 12:18:25,450 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 38 selfloop transitions, 11 changer transitions 40/102 dead transitions. [2024-10-24 12:18:25,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 102 transitions, 728 flow [2024-10-24 12:18:25,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 12:18:25,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 12:18:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 242 transitions. [2024-10-24 12:18:25,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6368421052631579 [2024-10-24 12:18:25,454 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 210 flow. Second operand 10 states and 242 transitions. [2024-10-24 12:18:25,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 102 transitions, 728 flow [2024-10-24 12:18:25,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 102 transitions, 675 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-10-24 12:18:25,471 INFO L231 Difference]: Finished difference. Result has 72 places, 45 transitions, 294 flow [2024-10-24 12:18:25,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=294, PETRI_PLACES=72, PETRI_TRANSITIONS=45} [2024-10-24 12:18:25,473 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2024-10-24 12:18:25,473 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 45 transitions, 294 flow [2024-10-24 12:18:25,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 12:18:25,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:25,473 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 12:18:25,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 12:18:25,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:25,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:25,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1219392237, now seen corresponding path program 1 times [2024-10-24 12:18:25,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:25,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333553468] [2024-10-24 12:18:25,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:25,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:25,630 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 12:18:25,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:25,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333553468] [2024-10-24 12:18:25,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333553468] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:25,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:25,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:18:25,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604964540] [2024-10-24 12:18:25,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:25,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:18:25,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:25,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:18:25,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:18:25,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 38 [2024-10-24 12:18:25,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 45 transitions, 294 flow. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 12:18:25,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:25,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 38 [2024-10-24 12:18:25,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:25,874 INFO L124 PetriNetUnfolderBase]: 514/1098 cut-off events. [2024-10-24 12:18:25,875 INFO L125 PetriNetUnfolderBase]: For 3084/3190 co-relation queries the response was YES. [2024-10-24 12:18:25,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3493 conditions, 1098 events. 514/1098 cut-off events. For 3084/3190 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7468 event pairs, 227 based on Foata normal form. 66/1090 useless extension candidates. Maximal degree in co-relation 3460. Up to 494 conditions per place. [2024-10-24 12:18:25,891 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 20 selfloop transitions, 6 changer transitions 17/68 dead transitions. [2024-10-24 12:18:25,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 486 flow [2024-10-24 12:18:25,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:18:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 12:18:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 172 transitions. [2024-10-24 12:18:25,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6466165413533834 [2024-10-24 12:18:25,893 INFO L175 Difference]: Start difference. First operand has 72 places, 45 transitions, 294 flow. Second operand 7 states and 172 transitions. [2024-10-24 12:18:25,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 486 flow [2024-10-24 12:18:25,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 68 transitions, 432 flow, removed 25 selfloop flow, removed 9 redundant places. [2024-10-24 12:18:25,908 INFO L231 Difference]: Finished difference. Result has 68 places, 45 transitions, 284 flow [2024-10-24 12:18:25,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=284, PETRI_PLACES=68, PETRI_TRANSITIONS=45} [2024-10-24 12:18:25,910 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-24 12:18:25,910 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 45 transitions, 284 flow [2024-10-24 12:18:25,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 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 12:18:25,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:25,911 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:18:25,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 12:18:25,912 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:25,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:25,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1593557005, now seen corresponding path program 1 times [2024-10-24 12:18:25,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:25,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230798330] [2024-10-24 12:18:25,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:25,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:26,056 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 12:18:26,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230798330] [2024-10-24 12:18:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230798330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:26,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:18:26,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118414010] [2024-10-24 12:18:26,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:26,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:18:26,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:26,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:18:26,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:18:26,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-24 12:18:26,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 45 transitions, 284 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 12:18:26,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:26,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-24 12:18:26,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:26,232 INFO L124 PetriNetUnfolderBase]: 323/791 cut-off events. [2024-10-24 12:18:26,233 INFO L125 PetriNetUnfolderBase]: For 1261/1301 co-relation queries the response was YES. [2024-10-24 12:18:26,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2339 conditions, 791 events. 323/791 cut-off events. For 1261/1301 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5211 event pairs, 129 based on Foata normal form. 24/753 useless extension candidates. Maximal degree in co-relation 2309. Up to 382 conditions per place. [2024-10-24 12:18:26,241 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 21 selfloop transitions, 5 changer transitions 15/68 dead transitions. [2024-10-24 12:18:26,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 448 flow [2024-10-24 12:18:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:18:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 12:18:26,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-10-24 12:18:26,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6766917293233082 [2024-10-24 12:18:26,243 INFO L175 Difference]: Start difference. First operand has 68 places, 45 transitions, 284 flow. Second operand 7 states and 180 transitions. [2024-10-24 12:18:26,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 448 flow [2024-10-24 12:18:26,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 68 transitions, 412 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-10-24 12:18:26,250 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 281 flow [2024-10-24 12:18:26,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=281, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-10-24 12:18:26,251 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 23 predicate places. [2024-10-24 12:18:26,251 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 281 flow [2024-10-24 12:18:26,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 12:18:26,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:26,252 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 12:18:26,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 12:18:26,252 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:26,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:26,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1952470314, now seen corresponding path program 1 times [2024-10-24 12:18:26,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:26,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92414056] [2024-10-24 12:18:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:26,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:26,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:26,450 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 12:18:26,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:26,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92414056] [2024-10-24 12:18:26,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92414056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:26,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:26,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:18:26,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890718200] [2024-10-24 12:18:26,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:26,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:18:26,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:26,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:18:26,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:18:26,479 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2024-10-24 12:18:26,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 281 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 12:18:26,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:26,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2024-10-24 12:18:26,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:26,825 INFO L124 PetriNetUnfolderBase]: 956/1923 cut-off events. [2024-10-24 12:18:26,825 INFO L125 PetriNetUnfolderBase]: For 4564/4570 co-relation queries the response was YES. [2024-10-24 12:18:26,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6030 conditions, 1923 events. 956/1923 cut-off events. For 4564/4570 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 13364 event pairs, 238 based on Foata normal form. 30/1921 useless extension candidates. Maximal degree in co-relation 6002. Up to 479 conditions per place. [2024-10-24 12:18:26,837 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 41 selfloop transitions, 8 changer transitions 36/97 dead transitions. [2024-10-24 12:18:26,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 97 transitions, 769 flow [2024-10-24 12:18:26,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 12:18:26,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 12:18:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 203 transitions. [2024-10-24 12:18:26,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5935672514619883 [2024-10-24 12:18:26,839 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 281 flow. Second operand 9 states and 203 transitions. [2024-10-24 12:18:26,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 97 transitions, 769 flow [2024-10-24 12:18:26,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 719 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-10-24 12:18:26,851 INFO L231 Difference]: Finished difference. Result has 71 places, 42 transitions, 284 flow [2024-10-24 12:18:26,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=284, PETRI_PLACES=71, PETRI_TRANSITIONS=42} [2024-10-24 12:18:26,854 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2024-10-24 12:18:26,854 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 42 transitions, 284 flow [2024-10-24 12:18:26,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 12:18:26,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:26,855 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 12:18:26,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 12:18:26,855 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:26,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:26,856 INFO L85 PathProgramCache]: Analyzing trace with hash -790067674, now seen corresponding path program 1 times [2024-10-24 12:18:26,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:26,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972851778] [2024-10-24 12:18:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:26,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:26,990 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 12:18:26,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:26,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972851778] [2024-10-24 12:18:26,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972851778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:26,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:26,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 12:18:26,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366342754] [2024-10-24 12:18:26,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:26,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 12:18:26,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:26,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 12:18:26,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 12:18:27,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-24 12:18:27,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 42 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 12:18:27,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:27,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-24 12:18:27,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:27,167 INFO L124 PetriNetUnfolderBase]: 592/1208 cut-off events. [2024-10-24 12:18:27,167 INFO L125 PetriNetUnfolderBase]: For 1216/1238 co-relation queries the response was YES. [2024-10-24 12:18:27,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 1208 events. 592/1208 cut-off events. For 1216/1238 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 7858 event pairs, 130 based on Foata normal form. 63/1222 useless extension candidates. Maximal degree in co-relation 2791. Up to 528 conditions per place. [2024-10-24 12:18:27,175 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 24 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2024-10-24 12:18:27,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 55 transitions, 370 flow [2024-10-24 12:18:27,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 12:18:27,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 12:18:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-10-24 12:18:27,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7302631578947368 [2024-10-24 12:18:27,177 INFO L175 Difference]: Start difference. First operand has 71 places, 42 transitions, 284 flow. Second operand 4 states and 111 transitions. [2024-10-24 12:18:27,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 55 transitions, 370 flow [2024-10-24 12:18:27,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 322 flow, removed 13 selfloop flow, removed 11 redundant places. [2024-10-24 12:18:27,184 INFO L231 Difference]: Finished difference. Result has 61 places, 46 transitions, 274 flow [2024-10-24 12:18:27,185 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=61, PETRI_TRANSITIONS=46} [2024-10-24 12:18:27,185 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2024-10-24 12:18:27,186 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 46 transitions, 274 flow [2024-10-24 12:18:27,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 12:18:27,186 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:27,186 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 12:18:27,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 12:18:27,187 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:27,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:27,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1308510469, now seen corresponding path program 1 times [2024-10-24 12:18:27,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:27,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546265956] [2024-10-24 12:18:27,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:27,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:27,272 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 12:18:27,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:27,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546265956] [2024-10-24 12:18:27,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546265956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:27,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:27,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 12:18:27,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772386745] [2024-10-24 12:18:27,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:27,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 12:18:27,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:27,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 12:18:27,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 12:18:27,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-24 12:18:27,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 46 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 12:18:27,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:27,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-24 12:18:27,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:27,423 INFO L124 PetriNetUnfolderBase]: 504/1015 cut-off events. [2024-10-24 12:18:27,423 INFO L125 PetriNetUnfolderBase]: For 687/995 co-relation queries the response was YES. [2024-10-24 12:18:27,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2599 conditions, 1015 events. 504/1015 cut-off events. For 687/995 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5990 event pairs, 47 based on Foata normal form. 62/1030 useless extension candidates. Maximal degree in co-relation 2574. Up to 424 conditions per place. [2024-10-24 12:18:27,431 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 29 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2024-10-24 12:18:27,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 399 flow [2024-10-24 12:18:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 12:18:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 12:18:27,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-10-24 12:18:27,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7315789473684211 [2024-10-24 12:18:27,433 INFO L175 Difference]: Start difference. First operand has 61 places, 46 transitions, 274 flow. Second operand 5 states and 139 transitions. [2024-10-24 12:18:27,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 399 flow [2024-10-24 12:18:27,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 63 transitions, 396 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 12:18:27,437 INFO L231 Difference]: Finished difference. Result has 66 places, 50 transitions, 326 flow [2024-10-24 12:18:27,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=326, PETRI_PLACES=66, PETRI_TRANSITIONS=50} [2024-10-24 12:18:27,438 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 24 predicate places. [2024-10-24 12:18:27,438 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 326 flow [2024-10-24 12:18:27,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 12:18:27,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:27,439 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 12:18:27,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 12:18:27,442 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:27,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:27,442 INFO L85 PathProgramCache]: Analyzing trace with hash 787797742, now seen corresponding path program 1 times [2024-10-24 12:18:27,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367273956] [2024-10-24 12:18:27,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:27,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:27,569 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 12:18:27,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:27,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367273956] [2024-10-24 12:18:27,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367273956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:27,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:27,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 12:18:27,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478553351] [2024-10-24 12:18:27,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:27,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 12:18:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:27,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 12:18:27,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 12:18:27,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 38 [2024-10-24 12:18:27,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 12:18:27,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:27,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 38 [2024-10-24 12:18:27,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:27,739 INFO L124 PetriNetUnfolderBase]: 412/787 cut-off events. [2024-10-24 12:18:27,740 INFO L125 PetriNetUnfolderBase]: For 1277/1725 co-relation queries the response was YES. [2024-10-24 12:18:27,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2469 conditions, 787 events. 412/787 cut-off events. For 1277/1725 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 4171 event pairs, 19 based on Foata normal form. 56/800 useless extension candidates. Maximal degree in co-relation 2441. Up to 264 conditions per place. [2024-10-24 12:18:27,746 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 25 selfloop transitions, 11 changer transitions 5/65 dead transitions. [2024-10-24 12:18:27,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 65 transitions, 441 flow [2024-10-24 12:18:27,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 12:18:27,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 12:18:27,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-10-24 12:18:27,748 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.706140350877193 [2024-10-24 12:18:27,748 INFO L175 Difference]: Start difference. First operand has 66 places, 50 transitions, 326 flow. Second operand 6 states and 161 transitions. [2024-10-24 12:18:27,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 65 transitions, 441 flow [2024-10-24 12:18:27,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 408 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-24 12:18:27,753 INFO L231 Difference]: Finished difference. Result has 68 places, 48 transitions, 315 flow [2024-10-24 12:18:27,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=68, PETRI_TRANSITIONS=48} [2024-10-24 12:18:27,755 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2024-10-24 12:18:27,756 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 48 transitions, 315 flow [2024-10-24 12:18:27,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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 12:18:27,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:27,757 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] [2024-10-24 12:18:27,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 12:18:27,758 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:27,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1633176865, now seen corresponding path program 1 times [2024-10-24 12:18:27,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:27,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117850942] [2024-10-24 12:18:27,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:27,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:27,956 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 12:18:27,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:27,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117850942] [2024-10-24 12:18:27,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117850942] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:27,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:27,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 12:18:27,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194648601] [2024-10-24 12:18:27,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:27,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:18:27,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:27,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:18:27,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:18:27,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-24 12:18:27,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 48 transitions, 315 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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 12:18:27,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:27,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-24 12:18:27,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:28,214 INFO L124 PetriNetUnfolderBase]: 638/1388 cut-off events. [2024-10-24 12:18:28,215 INFO L125 PetriNetUnfolderBase]: For 3514/3614 co-relation queries the response was YES. [2024-10-24 12:18:28,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4512 conditions, 1388 events. 638/1388 cut-off events. For 3514/3614 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 9671 event pairs, 275 based on Foata normal form. 24/1267 useless extension candidates. Maximal degree in co-relation 4485. Up to 417 conditions per place. [2024-10-24 12:18:28,225 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 21 selfloop transitions, 5 changer transitions 30/76 dead transitions. [2024-10-24 12:18:28,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 76 transitions, 547 flow [2024-10-24 12:18:28,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 12:18:28,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 12:18:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2024-10-24 12:18:28,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090225563909775 [2024-10-24 12:18:28,227 INFO L175 Difference]: Start difference. First operand has 68 places, 48 transitions, 315 flow. Second operand 7 states and 162 transitions. [2024-10-24 12:18:28,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 76 transitions, 547 flow [2024-10-24 12:18:28,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 76 transitions, 476 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-10-24 12:18:28,239 INFO L231 Difference]: Finished difference. Result has 69 places, 39 transitions, 202 flow [2024-10-24 12:18:28,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=202, PETRI_PLACES=69, PETRI_TRANSITIONS=39} [2024-10-24 12:18:28,240 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2024-10-24 12:18:28,240 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 39 transitions, 202 flow [2024-10-24 12:18:28,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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 12:18:28,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 12:18:28,241 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] [2024-10-24 12:18:28,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 12:18:28,241 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-24 12:18:28,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 12:18:28,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1416748521, now seen corresponding path program 2 times [2024-10-24 12:18:28,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 12:18:28,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890927038] [2024-10-24 12:18:28,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 12:18:28,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 12:18:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 12:18:28,381 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 12:18:28,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 12:18:28,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890927038] [2024-10-24 12:18:28,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890927038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 12:18:28,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 12:18:28,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 12:18:28,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691964093] [2024-10-24 12:18:28,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 12:18:28,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 12:18:28,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 12:18:28,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 12:18:28,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 12:18:28,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2024-10-24 12:18:28,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 39 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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 12:18:28,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 12:18:28,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2024-10-24 12:18:28,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 12:18:28,513 INFO L124 PetriNetUnfolderBase]: 121/284 cut-off events. [2024-10-24 12:18:28,514 INFO L125 PetriNetUnfolderBase]: For 414/418 co-relation queries the response was YES. [2024-10-24 12:18:28,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 284 events. 121/284 cut-off events. For 414/418 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1163 event pairs, 11 based on Foata normal form. 9/275 useless extension candidates. Maximal degree in co-relation 788. Up to 103 conditions per place. [2024-10-24 12:18:28,515 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-10-24 12:18:28,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 50 transitions, 286 flow [2024-10-24 12:18:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 12:18:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 12:18:28,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 160 transitions. [2024-10-24 12:18:28,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2024-10-24 12:18:28,517 INFO L175 Difference]: Start difference. First operand has 69 places, 39 transitions, 202 flow. Second operand 8 states and 160 transitions. [2024-10-24 12:18:28,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 50 transitions, 286 flow [2024-10-24 12:18:28,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 215 flow, removed 7 selfloop flow, removed 18 redundant places. [2024-10-24 12:18:28,519 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-10-24 12:18:28,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-10-24 12:18:28,520 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 12 predicate places. [2024-10-24 12:18:28,520 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-10-24 12:18:28,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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 12:18:28,523 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-24 12:18:28,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-10-24 12:18:28,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-10-24 12:18:28,524 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-10-24 12:18:28,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 12:18:28,525 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 12:18:28,529 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 12:18:28,530 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 12:18:28,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:18:28 BasicIcfg [2024-10-24 12:18:28,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 12:18:28,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 12:18:28,539 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 12:18:28,539 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 12:18:28,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:18:22" (3/4) ... [2024-10-24 12:18:28,541 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 12:18:28,544 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 12:18:28,544 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 12:18:28,544 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 12:18:28,549 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-10-24 12:18:28,550 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-10-24 12:18:28,550 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 12:18:28,551 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 12:18:28,647 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 12:18:28,648 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 12:18:28,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 12:18:28,649 INFO L158 Benchmark]: Toolchain (without parser) took 7376.66ms. Allocated memory was 167.8MB in the beginning and 276.8MB in the end (delta: 109.1MB). Free memory was 134.1MB in the beginning and 223.6MB in the end (delta: -89.5MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-10-24 12:18:28,652 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 12:18:28,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.42ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 111.1MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 12:18:28,652 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.60ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 12:18:28,653 INFO L158 Benchmark]: Boogie Preprocessor took 47.72ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 106.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 12:18:28,653 INFO L158 Benchmark]: RCFGBuilder took 541.60ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 88.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 12:18:28,653 INFO L158 Benchmark]: TraceAbstraction took 6039.44ms. Allocated memory was 167.8MB in the beginning and 276.8MB in the end (delta: 109.1MB). Free memory was 87.3MB in the beginning and 228.8MB in the end (delta: -141.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 12:18:28,653 INFO L158 Benchmark]: Witness Printer took 109.36ms. Allocated memory is still 276.8MB. Free memory was 228.8MB in the beginning and 223.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 12:18:28,655 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.42ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 111.1MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.60ms. Allocated memory is still 167.8MB. Free memory was 111.1MB in the beginning and 109.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.72ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 106.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 541.60ms. Allocated memory is still 167.8MB. Free memory was 106.9MB in the beginning and 88.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6039.44ms. Allocated memory was 167.8MB in the beginning and 276.8MB in the end (delta: 109.1MB). Free memory was 87.3MB in the beginning and 228.8MB in the end (delta: -141.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.36ms. Allocated memory is still 276.8MB. Free memory was 228.8MB in the beginning and 223.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 478 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 424 mSDsluCounter, 309 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 216 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 993 IncrementalHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 93 mSDtfsCounter, 993 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=8, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 234 NumberOfCodeBlocks, 234 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 1129 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 12:18:28,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE