./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.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 a72b3b3683b5d2b2d35965fc1a3189152678e29fe154c9fbeb2d06d1447980e3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:29:43,043 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:29:43,119 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:29:43,124 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:29:43,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:29:43,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:29:43,158 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:29:43,159 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:29:43,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:29:43,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:29:43,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:29:43,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:29:43,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:29:43,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:29:43,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:29:43,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:29:43,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:29:43,165 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:29:43,166 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:29:43,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:29:43,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:29:43,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:29:43,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:29:43,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:29:43,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:29:43,172 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:29:43,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:29:43,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:29:43,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:29:43,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:29:43,173 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:29:43,173 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:29:43,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:29:43,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:29:43,174 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:29:43,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:29:43,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:29:43,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:29:43,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:29:43,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:29:43,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:29:43,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:29:43,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a72b3b3683b5d2b2d35965fc1a3189152678e29fe154c9fbeb2d06d1447980e3 [2024-11-09 02:29:43,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:29:43,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:29:43,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:29:43,532 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:29:43,532 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:29:43,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2024-11-09 02:29:45,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:29:45,359 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:29:45,359 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i [2024-11-09 02:29:45,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042554e38/9305647408a44b45975fb51a98dcdd17/FLAGf9f012a24 [2024-11-09 02:29:45,398 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042554e38/9305647408a44b45975fb51a98dcdd17 [2024-11-09 02:29:45,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:29:45,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:29:45,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:29:45,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:29:45,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:29:45,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:29:45" (1/1) ... [2024-11-09 02:29:45,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de1fbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:45, skipping insertion in model container [2024-11-09 02:29:45,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:29:45" (1/1) ... [2024-11-09 02:29:45,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:29:45,669 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-09 02:29:45,932 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:29:45,947 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:29:45,961 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-09 02:29:46,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:29:46,076 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:29:46,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46 WrapperNode [2024-11-09 02:29:46,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:29:46,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:29:46,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:29:46,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:29:46,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,134 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2024-11-09 02:29:46,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:29:46,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:29:46,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:29:46,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:29:46,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,155 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,182 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 02:29:46,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,201 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:29:46,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:29:46,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:29:46,221 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:29:46,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (1/1) ... [2024-11-09 02:29:46,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:29:46,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:29:46,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 02:29:46,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 02:29:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 02:29:46,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:29:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 02:29:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 02:29:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 02:29:46,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 02:29:46,308 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 02:29:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 02:29:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 02:29:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 02:29:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:29:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 02:29:46,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:29:46,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:29:46,311 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:29:46,447 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:29:46,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:29:46,820 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:29:46,821 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:29:47,020 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:29:47,022 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:29:47,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:29:47 BoogieIcfgContainer [2024-11-09 02:29:47,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:29:47,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:29:47,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:29:47,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:29:47,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:29:45" (1/3) ... [2024-11-09 02:29:47,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d59ee69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:29:47, skipping insertion in model container [2024-11-09 02:29:47,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:29:46" (2/3) ... [2024-11-09 02:29:47,034 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d59ee69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:29:47, skipping insertion in model container [2024-11-09 02:29:47,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:29:47" (3/3) ... [2024-11-09 02:29:47,037 INFO L112 eAbstractionObserver]: Analyzing ICFG mix040_power.oepc_pso.oepc_rmo.oepc.i [2024-11-09 02:29:47,057 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:29:47,057 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 02:29:47,058 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:29:47,126 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 02:29:47,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2024-11-09 02:29:47,253 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-09 02:29:47,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:29:47,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 93 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-11-09 02:29:47,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2024-11-09 02:29:47,264 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2024-11-09 02:29:47,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:29:47,278 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;@222f23d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:29:47,279 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 02:29:47,282 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:29:47,282 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-09 02:29:47,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 02:29:47,283 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:29:47,283 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 02:29:47,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:29:47,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:29:47,290 INFO L85 PathProgramCache]: Analyzing trace with hash 11875706, now seen corresponding path program 1 times [2024-11-09 02:29:47,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:29:47,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59871270] [2024-11-09 02:29:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:29:47,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:29:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:29:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:29:47,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:29:47,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59871270] [2024-11-09 02:29:47,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59871270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:29:47,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:29:47,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 02:29:47,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115641917] [2024-11-09 02:29:47,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:29:47,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 02:29:47,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:29:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 02:29:47,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 02:29:47,849 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-11-09 02:29:47,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:29:47,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:29:47,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-11-09 02:29:47,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:29:48,867 INFO L124 PetriNetUnfolderBase]: 2495/3975 cut-off events. [2024-11-09 02:29:48,868 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-09 02:29:48,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7551 conditions, 3975 events. 2495/3975 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 24867 event pairs, 1647 based on Foata normal form. 135/4048 useless extension candidates. Maximal degree in co-relation 7539. Up to 2779 conditions per place. [2024-11-09 02:29:48,911 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 37 selfloop transitions, 2 changer transitions 2/62 dead transitions. [2024-11-09 02:29:48,911 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 227 flow [2024-11-09 02:29:48,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 02:29:48,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 02:29:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2024-11-09 02:29:48,924 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7933333333333333 [2024-11-09 02:29:48,926 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 119 transitions. [2024-11-09 02:29:48,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 227 flow [2024-11-09 02:29:48,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 62 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 02:29:48,938 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2024-11-09 02:29:48,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2024-11-09 02:29:48,945 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2024-11-09 02:29:48,946 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2024-11-09 02:29:48,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:29:48,946 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:29:48,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:29:48,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:29:48,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:29:48,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:29:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1594122599, now seen corresponding path program 1 times [2024-11-09 02:29:48,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:29:48,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662945217] [2024-11-09 02:29:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:29:48,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:29:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:29:49,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:29:49,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:29:49,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662945217] [2024-11-09 02:29:49,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662945217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:29:49,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:29:49,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 02:29:49,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770815384] [2024-11-09 02:29:49,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:29:49,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:29:49,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:29:49,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:29:49,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:29:49,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-09 02:29:49,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:29:49,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:29:49,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-09 02:29:49,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:29:55,899 INFO L124 PetriNetUnfolderBase]: 38109/54300 cut-off events. [2024-11-09 02:29:55,899 INFO L125 PetriNetUnfolderBase]: For 2249/2249 co-relation queries the response was YES. [2024-11-09 02:29:56,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108077 conditions, 54300 events. 38109/54300 cut-off events. For 2249/2249 co-relation queries the response was YES. Maximal size of possible extension queue 2288. Compared 390053 event pairs, 8776 based on Foata normal form. 0/52840 useless extension candidates. Maximal degree in co-relation 108067. Up to 19638 conditions per place. [2024-11-09 02:29:56,238 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 47 selfloop transitions, 8 changer transitions 103/170 dead transitions. [2024-11-09 02:29:56,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 170 transitions, 686 flow [2024-11-09 02:29:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 02:29:56,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 02:29:56,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 304 transitions. [2024-11-09 02:29:56,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755555555555556 [2024-11-09 02:29:56,241 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 9 states and 304 transitions. [2024-11-09 02:29:56,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 170 transitions, 686 flow [2024-11-09 02:29:56,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 170 transitions, 668 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 02:29:56,249 INFO L231 Difference]: Finished difference. Result has 68 places, 49 transitions, 204 flow [2024-11-09 02:29:56,249 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=204, PETRI_PLACES=68, PETRI_TRANSITIONS=49} [2024-11-09 02:29:56,250 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2024-11-09 02:29:56,250 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 49 transitions, 204 flow [2024-11-09 02:29:56,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:29:56,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:29:56,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:29:56,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:29:56,251 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:29:56,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:29:56,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1240114744, now seen corresponding path program 1 times [2024-11-09 02:29:56,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:29:56,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221828810] [2024-11-09 02:29:56,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:29:56,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:29:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:29:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:29:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:29:56,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221828810] [2024-11-09 02:29:56,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221828810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:29:56,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:29:56,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:29:56,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265223546] [2024-11-09 02:29:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:29:56,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:29:56,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:29:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:29:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:29:56,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-09 02:29:56,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 49 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 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) [2024-11-09 02:29:56,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:29:56,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-09 02:29:56,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:01,471 INFO L124 PetriNetUnfolderBase]: 28353/41256 cut-off events. [2024-11-09 02:30:01,472 INFO L125 PetriNetUnfolderBase]: For 60445/61278 co-relation queries the response was YES. [2024-11-09 02:30:01,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123435 conditions, 41256 events. 28353/41256 cut-off events. For 60445/61278 co-relation queries the response was YES. Maximal size of possible extension queue 1692. Compared 293079 event pairs, 3512 based on Foata normal form. 1095/42076 useless extension candidates. Maximal degree in co-relation 123417. Up to 15805 conditions per place. [2024-11-09 02:30:01,942 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 62 selfloop transitions, 9 changer transitions 102/185 dead transitions. [2024-11-09 02:30:01,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 185 transitions, 1192 flow [2024-11-09 02:30:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:30:01,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:30:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 318 transitions. [2024-11-09 02:30:01,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.636 [2024-11-09 02:30:01,945 INFO L175 Difference]: Start difference. First operand has 68 places, 49 transitions, 204 flow. Second operand 10 states and 318 transitions. [2024-11-09 02:30:01,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 185 transitions, 1192 flow [2024-11-09 02:30:02,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 185 transitions, 1046 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-11-09 02:30:02,131 INFO L231 Difference]: Finished difference. Result has 75 places, 54 transitions, 274 flow [2024-11-09 02:30:02,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=274, PETRI_PLACES=75, PETRI_TRANSITIONS=54} [2024-11-09 02:30:02,132 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2024-11-09 02:30:02,133 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 54 transitions, 274 flow [2024-11-09 02:30:02,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 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) [2024-11-09 02:30:02,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:02,133 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:02,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:30:02,134 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:02,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:02,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1636801371, now seen corresponding path program 1 times [2024-11-09 02:30:02,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:02,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303921712] [2024-11-09 02:30:02,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:02,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:30:02,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:02,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303921712] [2024-11-09 02:30:02,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303921712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:02,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:02,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:30:02,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918384038] [2024-11-09 02:30:02,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:02,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:02,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:02,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:02,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:02,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-09 02:30:02,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 54 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 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) [2024-11-09 02:30:02,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:02,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-09 02:30:02,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:06,661 INFO L124 PetriNetUnfolderBase]: 26344/38216 cut-off events. [2024-11-09 02:30:06,662 INFO L125 PetriNetUnfolderBase]: For 95291/96363 co-relation queries the response was YES. [2024-11-09 02:30:06,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122949 conditions, 38216 events. 26344/38216 cut-off events. For 95291/96363 co-relation queries the response was YES. Maximal size of possible extension queue 1544. Compared 267084 event pairs, 4069 based on Foata normal form. 936/39074 useless extension candidates. Maximal degree in co-relation 122924. Up to 16623 conditions per place. [2024-11-09 02:30:07,208 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 67 selfloop transitions, 19 changer transitions 92/190 dead transitions. [2024-11-09 02:30:07,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 190 transitions, 1322 flow [2024-11-09 02:30:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:30:07,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:30:07,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 318 transitions. [2024-11-09 02:30:07,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.636 [2024-11-09 02:30:07,216 INFO L175 Difference]: Start difference. First operand has 75 places, 54 transitions, 274 flow. Second operand 10 states and 318 transitions. [2024-11-09 02:30:07,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 190 transitions, 1322 flow [2024-11-09 02:30:07,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 190 transitions, 1275 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-11-09 02:30:07,923 INFO L231 Difference]: Finished difference. Result has 84 places, 66 transitions, 488 flow [2024-11-09 02:30:07,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=488, PETRI_PLACES=84, PETRI_TRANSITIONS=66} [2024-11-09 02:30:07,924 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 26 predicate places. [2024-11-09 02:30:07,924 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 66 transitions, 488 flow [2024-11-09 02:30:07,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 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) [2024-11-09 02:30:07,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:07,925 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] [2024-11-09 02:30:07,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:30:07,925 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:07,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:07,926 INFO L85 PathProgramCache]: Analyzing trace with hash -975734266, now seen corresponding path program 1 times [2024-11-09 02:30:07,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:07,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276383350] [2024-11-09 02:30:07,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:07,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:08,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:30:08,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:08,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276383350] [2024-11-09 02:30:08,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276383350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:08,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:08,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:30:08,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128446713] [2024-11-09 02:30:08,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:08,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:08,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:08,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:08,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-09 02:30:08,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 66 transitions, 488 flow. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:08,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:08,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-09 02:30:08,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:12,872 INFO L124 PetriNetUnfolderBase]: 24537/35452 cut-off events. [2024-11-09 02:30:12,872 INFO L125 PetriNetUnfolderBase]: For 130108/130629 co-relation queries the response was YES. [2024-11-09 02:30:13,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126513 conditions, 35452 events. 24537/35452 cut-off events. For 130108/130629 co-relation queries the response was YES. Maximal size of possible extension queue 1382. Compared 241545 event pairs, 5420 based on Foata normal form. 733/36153 useless extension candidates. Maximal degree in co-relation 126480. Up to 16062 conditions per place. [2024-11-09 02:30:13,185 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 69 selfloop transitions, 29 changer transitions 78/188 dead transitions. [2024-11-09 02:30:13,185 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 188 transitions, 1484 flow [2024-11-09 02:30:13,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:30:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:30:13,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2024-11-09 02:30:13,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-11-09 02:30:13,188 INFO L175 Difference]: Start difference. First operand has 84 places, 66 transitions, 488 flow. Second operand 10 states and 316 transitions. [2024-11-09 02:30:13,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 188 transitions, 1484 flow [2024-11-09 02:30:14,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 188 transitions, 1408 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-09 02:30:14,037 INFO L231 Difference]: Finished difference. Result has 91 places, 74 transitions, 640 flow [2024-11-09 02:30:14,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=640, PETRI_PLACES=91, PETRI_TRANSITIONS=74} [2024-11-09 02:30:14,038 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 33 predicate places. [2024-11-09 02:30:14,038 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 74 transitions, 640 flow [2024-11-09 02:30:14,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:14,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:14,040 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:30:14,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:30:14,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:14,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:14,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1195020695, now seen corresponding path program 1 times [2024-11-09 02:30:14,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:14,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824909909] [2024-11-09 02:30:14,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:14,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:30:14,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:14,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824909909] [2024-11-09 02:30:14,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824909909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:14,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:14,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 02:30:14,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35960075] [2024-11-09 02:30:14,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:14,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 02:30:14,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:14,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 02:30:14,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 02:30:14,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 50 [2024-11-09 02:30:14,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 74 transitions, 640 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:14,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:14,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 50 [2024-11-09 02:30:14,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:20,561 INFO L124 PetriNetUnfolderBase]: 32685/48000 cut-off events. [2024-11-09 02:30:20,561 INFO L125 PetriNetUnfolderBase]: For 214137/214704 co-relation queries the response was YES. [2024-11-09 02:30:20,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 174196 conditions, 48000 events. 32685/48000 cut-off events. For 214137/214704 co-relation queries the response was YES. Maximal size of possible extension queue 1897. Compared 357952 event pairs, 5515 based on Foata normal form. 909/48796 useless extension candidates. Maximal degree in co-relation 174157. Up to 17546 conditions per place. [2024-11-09 02:30:21,080 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 72 selfloop transitions, 31 changer transitions 84/199 dead transitions. [2024-11-09 02:30:21,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 199 transitions, 1712 flow [2024-11-09 02:30:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 02:30:21,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 02:30:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 315 transitions. [2024-11-09 02:30:21,082 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63 [2024-11-09 02:30:21,082 INFO L175 Difference]: Start difference. First operand has 91 places, 74 transitions, 640 flow. Second operand 10 states and 315 transitions. [2024-11-09 02:30:21,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 199 transitions, 1712 flow [2024-11-09 02:30:23,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 199 transitions, 1628 flow, removed 42 selfloop flow, removed 10 redundant places. [2024-11-09 02:30:23,632 INFO L231 Difference]: Finished difference. Result has 93 places, 77 transitions, 806 flow [2024-11-09 02:30:23,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=806, PETRI_PLACES=93, PETRI_TRANSITIONS=77} [2024-11-09 02:30:23,633 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 35 predicate places. [2024-11-09 02:30:23,633 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 77 transitions, 806 flow [2024-11-09 02:30:23,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:23,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:23,633 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] [2024-11-09 02:30:23,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:30:23,634 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:23,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:23,634 INFO L85 PathProgramCache]: Analyzing trace with hash 17757803, now seen corresponding path program 1 times [2024-11-09 02:30:23,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:23,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775364248] [2024-11-09 02:30:23,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:23,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:30:23,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:23,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775364248] [2024-11-09 02:30:23,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775364248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:23,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:23,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 02:30:23,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174203893] [2024-11-09 02:30:23,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:23,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 02:30:23,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:23,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 02:30:23,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 02:30:23,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-09 02:30:23,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 77 transitions, 806 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:23,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:23,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-09 02:30:23,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:30:32,211 INFO L124 PetriNetUnfolderBase]: 48732/72815 cut-off events. [2024-11-09 02:30:32,212 INFO L125 PetriNetUnfolderBase]: For 185258/189896 co-relation queries the response was YES. [2024-11-09 02:30:32,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203725 conditions, 72815 events. 48732/72815 cut-off events. For 185258/189896 co-relation queries the response was YES. Maximal size of possible extension queue 2888. Compared 572738 event pairs, 8525 based on Foata normal form. 3520/74603 useless extension candidates. Maximal degree in co-relation 203685. Up to 37706 conditions per place. [2024-11-09 02:30:32,786 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 62 selfloop transitions, 6 changer transitions 0/115 dead transitions. [2024-11-09 02:30:32,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 115 transitions, 1138 flow [2024-11-09 02:30:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 02:30:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 02:30:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2024-11-09 02:30:32,787 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.705 [2024-11-09 02:30:32,787 INFO L175 Difference]: Start difference. First operand has 93 places, 77 transitions, 806 flow. Second operand 4 states and 141 transitions. [2024-11-09 02:30:32,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 115 transitions, 1138 flow [2024-11-09 02:30:33,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 115 transitions, 1122 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-11-09 02:30:33,546 INFO L231 Difference]: Finished difference. Result has 89 places, 82 transitions, 836 flow [2024-11-09 02:30:33,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=836, PETRI_PLACES=89, PETRI_TRANSITIONS=82} [2024-11-09 02:30:33,547 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 31 predicate places. [2024-11-09 02:30:33,547 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 82 transitions, 836 flow [2024-11-09 02:30:33,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:33,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:30:33,548 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] [2024-11-09 02:30:33,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 02:30:33,548 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 02:30:33,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:30:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash -790725680, now seen corresponding path program 1 times [2024-11-09 02:30:33,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:30:33,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164403585] [2024-11-09 02:30:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:30:33,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:30:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:30:33,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:30:33,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:30:33,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164403585] [2024-11-09 02:30:33,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164403585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:30:33,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:30:33,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:30:33,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895881636] [2024-11-09 02:30:33,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:30:33,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:30:33,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:30:33,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:30:33,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:30:33,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-09 02:30:33,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 82 transitions, 836 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 02:30:33,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:30:33,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-09 02:30:33,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand