./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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/mix057_power.opt_pso.opt_rmo.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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 14:24:57,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 14:24:57,516 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 14:24:57,521 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 14:24:57,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 14:24:57,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 14:24:57,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 14:24:57,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 14:24:57,544 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 14:24:57,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 14:24:57,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 14:24:57,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 14:24:57,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 14:24:57,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 14:24:57,547 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 14:24:57,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 14:24:57,548 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 14:24:57,548 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 14:24:57,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 14:24:57,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 14:24:57,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 14:24:57,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 14:24:57,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 14:24:57,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 14:24:57,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 14:24:57,551 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 14:24:57,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 14:24:57,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 14:24:57,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 14:24:57,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 14:24:57,553 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 14:24:57,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 14:24:57,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:24:57,554 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 14:24:57,554 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 14:24:57,554 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 14:24:57,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 14:24:57,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 14:24:57,555 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 14:24:57,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 14:24:57,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 14:24:57,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 14:24:57,557 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-10-14 14:24:57,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 14:24:57,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 14:24:57,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 14:24:57,839 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 14:24:57,839 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 14:24:57,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-14 14:24:59,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 14:24:59,527 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 14:24:59,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-14 14:24:59,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca164492/420f479262fa4169975f59fe8767bf45/FLAG6a0c704c4 [2024-10-14 14:24:59,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ca164492/420f479262fa4169975f59fe8767bf45 [2024-10-14 14:24:59,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 14:24:59,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 14:24:59,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 14:24:59,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 14:24:59,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 14:24:59,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:24:59" (1/1) ... [2024-10-14 14:24:59,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ee9da6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:24:59, skipping insertion in model container [2024-10-14 14:24:59,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:24:59" (1/1) ... [2024-10-14 14:24:59,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 14:24:59,813 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-10-14 14:25:00,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:25:00,039 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 14:25:00,052 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-10-14 14:25:00,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 14:25:00,135 INFO L204 MainTranslator]: Completed translation [2024-10-14 14:25:00,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00 WrapperNode [2024-10-14 14:25:00,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 14:25:00,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 14:25:00,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 14:25:00,138 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 14:25:00,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,211 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2024-10-14 14:25:00,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 14:25:00,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 14:25:00,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 14:25:00,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 14:25:00,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,261 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]. [2024-10-14 14:25:00,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,274 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,283 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,289 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 14:25:00,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 14:25:00,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 14:25:00,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 14:25:00,298 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (1/1) ... [2024-10-14 14:25:00,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 14:25:00,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 14:25:00,330 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) [2024-10-14 14:25:00,337 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 [2024-10-14 14:25:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 14:25:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 14:25:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 14:25:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 14:25:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 14:25:00,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 14:25:00,392 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 14:25:00,393 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 14:25:00,393 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 14:25:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 14:25:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 14:25:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 14:25:00,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 14:25:00,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 14:25:00,396 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 14:25:00,548 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 14:25:00,550 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 14:25:00,873 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 14:25:00,873 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 14:25:01,106 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 14:25:01,107 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 14:25:01,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:25:01 BoogieIcfgContainer [2024-10-14 14:25:01,107 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 14:25:01,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 14:25:01,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 14:25:01,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 14:25:01,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:24:59" (1/3) ... [2024-10-14 14:25:01,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474aacd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:25:01, skipping insertion in model container [2024-10-14 14:25:01,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:25:00" (2/3) ... [2024-10-14 14:25:01,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474aacd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:25:01, skipping insertion in model container [2024-10-14 14:25:01,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:25:01" (3/3) ... [2024-10-14 14:25:01,120 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-14 14:25:01,143 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 14:25:01,143 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 14:25:01,143 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 14:25:01,200 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 14:25:01,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 112 flow [2024-10-14 14:25:01,271 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2024-10-14 14:25:01,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:25:01,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2024-10-14 14:25:01,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 48 transitions, 112 flow [2024-10-14 14:25:01,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 44 transitions, 100 flow [2024-10-14 14:25:01,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 14:25:01,304 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;@5873680a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 14:25:01,305 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-10-14 14:25:01,317 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 14:25:01,318 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-10-14 14:25:01,318 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:25:01,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:01,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:25:01,320 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:01,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:01,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1793883208, now seen corresponding path program 1 times [2024-10-14 14:25:01,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:01,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339129196] [2024-10-14 14:25:01,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:01,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:01,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:01,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339129196] [2024-10-14 14:25:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339129196] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:01,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:01,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 14:25:01,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736641044] [2024-10-14 14:25:01,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:01,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 14:25:01,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:01,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 14:25:01,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 14:25:01,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 48 [2024-10-14 14:25:01,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-10-14 14:25:01,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:01,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 48 [2024-10-14 14:25:01,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:02,356 INFO L124 PetriNetUnfolderBase]: 815/1447 cut-off events. [2024-10-14 14:25:02,357 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 14:25:02,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1447 events. 815/1447 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 9993 event pairs, 179 based on Foata normal form. 48/1452 useless extension candidates. Maximal degree in co-relation 2667. Up to 889 conditions per place. [2024-10-14 14:25:02,376 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 27 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2024-10-14 14:25:02,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 178 flow [2024-10-14 14:25:02,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 14:25:02,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 14:25:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-10-14 14:25:02,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-10-14 14:25:02,393 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 109 transitions. [2024-10-14 14:25:02,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 178 flow [2024-10-14 14:25:02,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 14:25:02,401 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 94 flow [2024-10-14 14:25:02,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-10-14 14:25:02,410 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-10-14 14:25:02,410 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 94 flow [2024-10-14 14:25:02,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2024-10-14 14:25:02,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:02,411 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:25:02,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 14:25:02,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:02,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:02,413 INFO L85 PathProgramCache]: Analyzing trace with hash -2094359865, now seen corresponding path program 1 times [2024-10-14 14:25:02,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:02,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540517897] [2024-10-14 14:25:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:02,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:03,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:03,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540517897] [2024-10-14 14:25:03,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540517897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:03,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:03,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:25:03,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265328148] [2024-10-14 14:25:03,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:03,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:25:03,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:03,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:25:03,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:25:03,472 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-14 14:25:03,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-14 14:25:03,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:03,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-14 14:25:03,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:06,110 INFO L124 PetriNetUnfolderBase]: 12743/19380 cut-off events. [2024-10-14 14:25:06,110 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-10-14 14:25:06,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37942 conditions, 19380 events. 12743/19380 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 145048 event pairs, 411 based on Foata normal form. 0/18919 useless extension candidates. Maximal degree in co-relation 37932. Up to 6976 conditions per place. [2024-10-14 14:25:06,224 INFO L140 encePairwiseOnDemand]: 34/48 looper letters, 53 selfloop transitions, 12 changer transitions 99/178 dead transitions. [2024-10-14 14:25:06,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 726 flow [2024-10-14 14:25:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 14:25:06,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-14 14:25:06,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 383 transitions. [2024-10-14 14:25:06,232 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6649305555555556 [2024-10-14 14:25:06,234 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 12 states and 383 transitions. [2024-10-14 14:25:06,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 726 flow [2024-10-14 14:25:06,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 178 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 14:25:06,244 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 228 flow [2024-10-14 14:25:06,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=228, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2024-10-14 14:25:06,246 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-10-14 14:25:06,246 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 228 flow [2024-10-14 14:25:06,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-14 14:25:06,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:06,247 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:25:06,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 14:25:06,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:06,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:06,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1563188216, now seen corresponding path program 1 times [2024-10-14 14:25:06,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:06,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008782075] [2024-10-14 14:25:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:06,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:06,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:06,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008782075] [2024-10-14 14:25:06,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008782075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:06,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:06,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:25:06,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427700145] [2024-10-14 14:25:06,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:06,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:25:06,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:06,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:25:06,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:25:07,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-14 14:25:07,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-14 14:25:07,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:07,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-14 14:25:07,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:09,270 INFO L124 PetriNetUnfolderBase]: 9456/15774 cut-off events. [2024-10-14 14:25:09,270 INFO L125 PetriNetUnfolderBase]: For 29496/29502 co-relation queries the response was YES. [2024-10-14 14:25:09,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50095 conditions, 15774 events. 9456/15774 cut-off events. For 29496/29502 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 128395 event pairs, 618 based on Foata normal form. 380/16085 useless extension candidates. Maximal degree in co-relation 50074. Up to 6405 conditions per place. [2024-10-14 14:25:09,372 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 57 selfloop transitions, 15 changer transitions 78/164 dead transitions. [2024-10-14 14:25:09,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 164 transitions, 1170 flow [2024-10-14 14:25:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:25:09,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 14:25:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2024-10-14 14:25:09,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-10-14 14:25:09,374 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 228 flow. Second operand 10 states and 312 transitions. [2024-10-14 14:25:09,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 164 transitions, 1170 flow [2024-10-14 14:25:09,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 164 transitions, 1090 flow, removed 40 selfloop flow, removed 4 redundant places. [2024-10-14 14:25:09,633 INFO L231 Difference]: Finished difference. Result has 77 places, 62 transitions, 398 flow [2024-10-14 14:25:09,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=77, PETRI_TRANSITIONS=62} [2024-10-14 14:25:09,635 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-10-14 14:25:09,635 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 62 transitions, 398 flow [2024-10-14 14:25:09,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-10-14 14:25:09,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:09,636 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:25:09,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 14:25:09,636 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:09,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:09,638 INFO L85 PathProgramCache]: Analyzing trace with hash 88273458, now seen corresponding path program 1 times [2024-10-14 14:25:09,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:09,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43649223] [2024-10-14 14:25:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:09,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:10,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:10,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43649223] [2024-10-14 14:25:10,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43649223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:10,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:10,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:25:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24866572] [2024-10-14 14:25:10,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:10,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:25:10,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:25:10,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:25:10,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-10-14 14:25:10,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 62 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-14 14:25:10,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:10,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-10-14 14:25:10,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:13,234 INFO L124 PetriNetUnfolderBase]: 11217/18234 cut-off events. [2024-10-14 14:25:13,234 INFO L125 PetriNetUnfolderBase]: For 56757/56757 co-relation queries the response was YES. [2024-10-14 14:25:13,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66284 conditions, 18234 events. 11217/18234 cut-off events. For 56757/56757 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 149156 event pairs, 2140 based on Foata normal form. 350/18310 useless extension candidates. Maximal degree in co-relation 66256. Up to 5814 conditions per place. [2024-10-14 14:25:13,360 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 61 selfloop transitions, 27 changer transitions 68/170 dead transitions. [2024-10-14 14:25:13,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 170 transitions, 1408 flow [2024-10-14 14:25:13,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:25:13,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 14:25:13,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2024-10-14 14:25:13,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6395833333333333 [2024-10-14 14:25:13,362 INFO L175 Difference]: Start difference. First operand has 77 places, 62 transitions, 398 flow. Second operand 10 states and 307 transitions. [2024-10-14 14:25:13,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 170 transitions, 1408 flow [2024-10-14 14:25:13,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 170 transitions, 1362 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-10-14 14:25:13,640 INFO L231 Difference]: Finished difference. Result has 89 places, 73 transitions, 646 flow [2024-10-14 14:25:13,640 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=646, PETRI_PLACES=89, PETRI_TRANSITIONS=73} [2024-10-14 14:25:13,641 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 33 predicate places. [2024-10-14 14:25:13,641 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 646 flow [2024-10-14 14:25:13,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-10-14 14:25:13,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:13,641 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 14:25:13,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 14:25:13,642 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:13,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2101487005, now seen corresponding path program 1 times [2024-10-14 14:25:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:13,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089473573] [2024-10-14 14:25:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:14,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:14,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:14,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089473573] [2024-10-14 14:25:14,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089473573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:14,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:14,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 14:25:14,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156216029] [2024-10-14 14:25:14,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:14,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 14:25:14,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:14,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 14:25:14,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 14:25:14,398 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-10-14 14:25:14,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 73 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-14 14:25:14,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:14,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-10-14 14:25:14,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:16,596 INFO L124 PetriNetUnfolderBase]: 10743/18721 cut-off events. [2024-10-14 14:25:16,597 INFO L125 PetriNetUnfolderBase]: For 96053/97665 co-relation queries the response was YES. [2024-10-14 14:25:16,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74572 conditions, 18721 events. 10743/18721 cut-off events. For 96053/97665 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 168009 event pairs, 3158 based on Foata normal form. 622/18334 useless extension candidates. Maximal degree in co-relation 74533. Up to 10870 conditions per place. [2024-10-14 14:25:16,929 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 58 selfloop transitions, 14 changer transitions 20/130 dead transitions. [2024-10-14 14:25:16,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 130 transitions, 1312 flow [2024-10-14 14:25:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 14:25:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-14 14:25:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2024-10-14 14:25:16,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2024-10-14 14:25:16,931 INFO L175 Difference]: Start difference. First operand has 89 places, 73 transitions, 646 flow. Second operand 7 states and 214 transitions. [2024-10-14 14:25:16,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 130 transitions, 1312 flow [2024-10-14 14:25:17,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 130 transitions, 1268 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-10-14 14:25:17,117 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 784 flow [2024-10-14 14:25:17,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=784, PETRI_PLACES=85, PETRI_TRANSITIONS=84} [2024-10-14 14:25:17,118 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2024-10-14 14:25:17,119 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 784 flow [2024-10-14 14:25:17,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-14 14:25:17,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:17,119 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] [2024-10-14 14:25:17,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 14:25:17,120 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:17,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:17,120 INFO L85 PathProgramCache]: Analyzing trace with hash 319451581, now seen corresponding path program 1 times [2024-10-14 14:25:17,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:17,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379145489] [2024-10-14 14:25:17,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:17,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:17,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:17,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379145489] [2024-10-14 14:25:17,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379145489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:17,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:17,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:25:17,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092680233] [2024-10-14 14:25:17,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:17,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:25:17,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:17,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:25:17,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:25:17,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-10-14 14:25:17,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 784 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:25:17,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:17,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-10-14 14:25:17,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:20,362 INFO L124 PetriNetUnfolderBase]: 11678/20663 cut-off events. [2024-10-14 14:25:20,363 INFO L125 PetriNetUnfolderBase]: For 117080/118606 co-relation queries the response was YES. [2024-10-14 14:25:20,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86252 conditions, 20663 events. 11678/20663 cut-off events. For 117080/118606 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 192448 event pairs, 2097 based on Foata normal form. 565/20244 useless extension candidates. Maximal degree in co-relation 86215. Up to 11097 conditions per place. [2024-10-14 14:25:20,549 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 71 selfloop transitions, 30 changer transitions 26/165 dead transitions. [2024-10-14 14:25:20,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 165 transitions, 1842 flow [2024-10-14 14:25:20,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:25:20,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 14:25:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2024-10-14 14:25:20,552 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-10-14 14:25:20,552 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 784 flow. Second operand 10 states and 297 transitions. [2024-10-14 14:25:20,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 165 transitions, 1842 flow [2024-10-14 14:25:20,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 165 transitions, 1767 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-10-14 14:25:20,779 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 1083 flow [2024-10-14 14:25:20,779 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1083, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2024-10-14 14:25:20,780 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 42 predicate places. [2024-10-14 14:25:20,780 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 1083 flow [2024-10-14 14:25:20,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:25:20,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:20,781 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] [2024-10-14 14:25:20,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 14:25:20,781 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:20,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1473979817, now seen corresponding path program 1 times [2024-10-14 14:25:20,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:20,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859999078] [2024-10-14 14:25:20,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:20,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:21,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:21,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:21,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859999078] [2024-10-14 14:25:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859999078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:21,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:21,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 14:25:21,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728565988] [2024-10-14 14:25:21,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:21,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 14:25:21,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:21,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 14:25:21,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 14:25:21,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-10-14 14:25:21,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 1083 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:25:21,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:21,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-10-14 14:25:21,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:25,044 INFO L124 PetriNetUnfolderBase]: 14778/26289 cut-off events. [2024-10-14 14:25:25,044 INFO L125 PetriNetUnfolderBase]: For 183646/185503 co-relation queries the response was YES. [2024-10-14 14:25:25,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115898 conditions, 26289 events. 14778/26289 cut-off events. For 183646/185503 co-relation queries the response was YES. Maximal size of possible extension queue 1890. Compared 255317 event pairs, 2553 based on Foata normal form. 719/25859 useless extension candidates. Maximal degree in co-relation 115855. Up to 11125 conditions per place. [2024-10-14 14:25:25,307 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 86 selfloop transitions, 57 changer transitions 40/221 dead transitions. [2024-10-14 14:25:25,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 221 transitions, 2724 flow [2024-10-14 14:25:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-14 14:25:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-14 14:25:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 386 transitions. [2024-10-14 14:25:25,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6185897435897436 [2024-10-14 14:25:25,311 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 1083 flow. Second operand 13 states and 386 transitions. [2024-10-14 14:25:25,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 221 transitions, 2724 flow [2024-10-14 14:25:26,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 221 transitions, 2576 flow, removed 74 selfloop flow, removed 0 redundant places. [2024-10-14 14:25:26,229 INFO L231 Difference]: Finished difference. Result has 117 places, 136 transitions, 1644 flow [2024-10-14 14:25:26,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1644, PETRI_PLACES=117, PETRI_TRANSITIONS=136} [2024-10-14 14:25:26,230 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 61 predicate places. [2024-10-14 14:25:26,230 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 136 transitions, 1644 flow [2024-10-14 14:25:26,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 14:25:26,231 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:26,231 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] [2024-10-14 14:25:26,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 14:25:26,231 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:26,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:26,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1354845608, now seen corresponding path program 1 times [2024-10-14 14:25:26,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:26,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082966375] [2024-10-14 14:25:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:26,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:27,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:27,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082966375] [2024-10-14 14:25:27,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082966375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:27,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:27,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 14:25:27,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481609129] [2024-10-14 14:25:27,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:27,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:25:27,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:27,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:25:27,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:25:27,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-10-14 14:25:27,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 136 transitions, 1644 flow. Second operand has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2024-10-14 14:25:27,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:27,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-10-14 14:25:27,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:30,648 INFO L124 PetriNetUnfolderBase]: 14236/25758 cut-off events. [2024-10-14 14:25:30,648 INFO L125 PetriNetUnfolderBase]: For 240096/242127 co-relation queries the response was YES. [2024-10-14 14:25:30,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122399 conditions, 25758 events. 14236/25758 cut-off events. For 240096/242127 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 254260 event pairs, 2293 based on Foata normal form. 532/25024 useless extension candidates. Maximal degree in co-relation 122347. Up to 13640 conditions per place. [2024-10-14 14:25:30,873 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 104 selfloop transitions, 35 changer transitions 24/201 dead transitions. [2024-10-14 14:25:30,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 201 transitions, 2739 flow [2024-10-14 14:25:30,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 14:25:30,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-14 14:25:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 244 transitions. [2024-10-14 14:25:30,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2024-10-14 14:25:30,875 INFO L175 Difference]: Start difference. First operand has 117 places, 136 transitions, 1644 flow. Second operand 8 states and 244 transitions. [2024-10-14 14:25:30,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 201 transitions, 2739 flow [2024-10-14 14:25:32,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 201 transitions, 2620 flow, removed 52 selfloop flow, removed 3 redundant places. [2024-10-14 14:25:32,128 INFO L231 Difference]: Finished difference. Result has 125 places, 140 transitions, 1750 flow [2024-10-14 14:25:32,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1750, PETRI_PLACES=125, PETRI_TRANSITIONS=140} [2024-10-14 14:25:32,129 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2024-10-14 14:25:32,129 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 140 transitions, 1750 flow [2024-10-14 14:25:32,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2024-10-14 14:25:32,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:32,130 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] [2024-10-14 14:25:32,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 14:25:32,130 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:32,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:32,131 INFO L85 PathProgramCache]: Analyzing trace with hash -817172865, now seen corresponding path program 1 times [2024-10-14 14:25:32,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:32,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668222661] [2024-10-14 14:25:32,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:32,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:33,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:33,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:33,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668222661] [2024-10-14 14:25:33,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668222661] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:33,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:33,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 14:25:33,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210691950] [2024-10-14 14:25:33,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:33,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:25:33,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:33,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:25:33,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:25:33,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 48 [2024-10-14 14:25:33,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 140 transitions, 1750 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-10-14 14:25:33,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:33,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 48 [2024-10-14 14:25:33,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:38,138 INFO L124 PetriNetUnfolderBase]: 19986/33620 cut-off events. [2024-10-14 14:25:38,138 INFO L125 PetriNetUnfolderBase]: For 340981/342194 co-relation queries the response was YES. [2024-10-14 14:25:38,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166532 conditions, 33620 events. 19986/33620 cut-off events. For 340981/342194 co-relation queries the response was YES. Maximal size of possible extension queue 2362. Compared 316141 event pairs, 8526 based on Foata normal form. 713/32874 useless extension candidates. Maximal degree in co-relation 166475. Up to 21968 conditions per place. [2024-10-14 14:25:38,955 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 90 selfloop transitions, 48 changer transitions 102/264 dead transitions. [2024-10-14 14:25:38,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 264 transitions, 3765 flow [2024-10-14 14:25:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 14:25:38,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 14:25:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 277 transitions. [2024-10-14 14:25:38,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5770833333333333 [2024-10-14 14:25:38,957 INFO L175 Difference]: Start difference. First operand has 125 places, 140 transitions, 1750 flow. Second operand 10 states and 277 transitions. [2024-10-14 14:25:38,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 264 transitions, 3765 flow [2024-10-14 14:25:40,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 264 transitions, 3651 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-10-14 14:25:40,800 INFO L231 Difference]: Finished difference. Result has 137 places, 141 transitions, 1970 flow [2024-10-14 14:25:40,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1643, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1970, PETRI_PLACES=137, PETRI_TRANSITIONS=141} [2024-10-14 14:25:40,801 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 81 predicate places. [2024-10-14 14:25:40,801 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 141 transitions, 1970 flow [2024-10-14 14:25:40,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-10-14 14:25:40,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:40,802 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] [2024-10-14 14:25:40,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 14:25:40,802 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:40,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1797812301, now seen corresponding path program 2 times [2024-10-14 14:25:40,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:40,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457337677] [2024-10-14 14:25:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:40,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:41,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457337677] [2024-10-14 14:25:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457337677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:41,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:41,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 14:25:41,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398050010] [2024-10-14 14:25:41,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:41,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 14:25:41,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:41,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 14:25:41,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 14:25:41,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 48 [2024-10-14 14:25:41,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 1970 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-10-14 14:25:41,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:41,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 48 [2024-10-14 14:25:41,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 14:25:45,195 INFO L124 PetriNetUnfolderBase]: 14601/23804 cut-off events. [2024-10-14 14:25:45,195 INFO L125 PetriNetUnfolderBase]: For 319646/321105 co-relation queries the response was YES. [2024-10-14 14:25:45,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137230 conditions, 23804 events. 14601/23804 cut-off events. For 319646/321105 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 201948 event pairs, 2054 based on Foata normal form. 798/23561 useless extension candidates. Maximal degree in co-relation 137168. Up to 13712 conditions per place. [2024-10-14 14:25:45,437 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 122 selfloop transitions, 61 changer transitions 53/260 dead transitions. [2024-10-14 14:25:45,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 260 transitions, 4040 flow [2024-10-14 14:25:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 14:25:45,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 14:25:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 259 transitions. [2024-10-14 14:25:45,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5995370370370371 [2024-10-14 14:25:45,439 INFO L175 Difference]: Start difference. First operand has 137 places, 141 transitions, 1970 flow. Second operand 9 states and 259 transitions. [2024-10-14 14:25:45,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 260 transitions, 4040 flow [2024-10-14 14:25:47,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 260 transitions, 3759 flow, removed 129 selfloop flow, removed 16 redundant places. [2024-10-14 14:25:47,601 INFO L231 Difference]: Finished difference. Result has 110 places, 162 transitions, 2393 flow [2024-10-14 14:25:47,602 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1795, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2393, PETRI_PLACES=110, PETRI_TRANSITIONS=162} [2024-10-14 14:25:47,603 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 54 predicate places. [2024-10-14 14:25:47,603 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 162 transitions, 2393 flow [2024-10-14 14:25:47,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-10-14 14:25:47,603 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 14:25:47,603 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] [2024-10-14 14:25:47,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 14:25:47,604 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-10-14 14:25:47,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 14:25:47,604 INFO L85 PathProgramCache]: Analyzing trace with hash -813808039, now seen corresponding path program 3 times [2024-10-14 14:25:47,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 14:25:47,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785110511] [2024-10-14 14:25:47,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 14:25:47,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 14:25:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 14:25:47,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 14:25:47,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 14:25:47,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785110511] [2024-10-14 14:25:47,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785110511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 14:25:47,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 14:25:47,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 14:25:47,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547335524] [2024-10-14 14:25:47,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 14:25:47,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 14:25:47,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 14:25:47,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 14:25:47,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 14:25:47,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-10-14 14:25:47,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 162 transitions, 2393 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-10-14 14:25:47,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 14:25:47,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-10-14 14:25:47,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand