./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:35:03,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:35:03,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:35:03,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:35:03,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:35:03,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:35:03,420 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:35:03,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:35:03,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:35:03,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:35:03,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:35:03,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:35:03,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:35:03,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:35:03,424 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:35:03,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:35:03,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:35:03,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:35:03,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:35:03,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:35:03,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:35:03,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:35:03,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:35:03,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:35:03,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:35:03,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:35:03,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:35:03,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:35:03,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:35:03,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:35:03,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:35:03,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:35:03,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:35:03,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:35:03,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:35:03,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:35:03,435 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:35:03,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:35:03,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:35:03,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:35:03,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:35:03,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:35:03,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2024-11-19 01:35:03,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:35:03,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:35:03,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:35:03,719 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:35:03,720 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:35:03,721 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-19 01:35:05,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:35:05,506 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:35:05,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-19 01:35:05,531 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a612060bd/e47d1a163d8940919a7599e8b914d588/FLAG83d5fd21a [2024-11-19 01:35:05,804 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a612060bd/e47d1a163d8940919a7599e8b914d588 [2024-11-19 01:35:05,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:35:05,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:35:05,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:35:05,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:35:05,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:35:05,815 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:05" (1/1) ... [2024-11-19 01:35:05,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ff8f26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:05, skipping insertion in model container [2024-11-19 01:35:05,816 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:05" (1/1) ... [2024-11-19 01:35:05,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:35:06,075 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2024-11-19 01:35:06,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:35:06,395 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:35:06,415 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2024-11-19 01:35:06,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:35:06,520 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:35:06,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06 WrapperNode [2024-11-19 01:35:06,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:35:06,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:35:06,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:35:06,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:35:06,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,579 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2024-11-19 01:35:06,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:35:06,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:35:06,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:35:06,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:35:06,592 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,614 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 01:35:06,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,628 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,636 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:35:06,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:35:06,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:35:06,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:35:06,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (1/1) ... [2024-11-19 01:35:06,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:35:06,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:35:06,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:35:06,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:35:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:35:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:35:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 01:35:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 01:35:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 01:35:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 01:35:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:35:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:35:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:35:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:35:06,755 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:35:06,921 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:35:06,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:35:07,361 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:35:07,361 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:35:07,617 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:35:07,617 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:35:07,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:07 BoogieIcfgContainer [2024-11-19 01:35:07,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:35:07,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:35:07,621 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:35:07,624 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:35:07,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:35:05" (1/3) ... [2024-11-19 01:35:07,625 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2001c51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:07, skipping insertion in model container [2024-11-19 01:35:07,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06" (2/3) ... [2024-11-19 01:35:07,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2001c51d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:07, skipping insertion in model container [2024-11-19 01:35:07,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:07" (3/3) ... [2024-11-19 01:35:07,628 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-11-19 01:35:07,643 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:35:07,643 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 01:35:07,644 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:35:07,699 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 01:35:07,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow [2024-11-19 01:35:07,771 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-11-19 01:35:07,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:35:07,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-11-19 01:35:07,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow [2024-11-19 01:35:07,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow [2024-11-19 01:35:07,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:35:07,799 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;@612d5478, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:35:07,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-19 01:35:07,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:35:07,810 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-19 01:35:07,810 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:35:07,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:07,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 01:35:07,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:07,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash -942372534, now seen corresponding path program 1 times [2024-11-19 01:35:07,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:07,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998367327] [2024-11-19 01:35:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:08,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:08,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998367327] [2024-11-19 01:35:08,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998367327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:08,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:08,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 01:35:08,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225613722] [2024-11-19 01:35:08,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:08,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:35:08,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:08,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:35:08,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:35:08,348 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-11-19 01:35:08,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:08,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:08,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-11-19 01:35:08,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:08,684 INFO L124 PetriNetUnfolderBase]: 264/581 cut-off events. [2024-11-19 01:35:08,684 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-19 01:35:08,687 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 581 events. 264/581 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3134 event pairs, 32 based on Foata normal form. 25/599 useless extension candidates. Maximal degree in co-relation 1037. Up to 373 conditions per place. [2024-11-19 01:35:08,693 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 24 selfloop transitions, 2 changer transitions 2/39 dead transitions. [2024-11-19 01:35:08,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 140 flow [2024-11-19 01:35:08,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:35:08,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:35:08,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-19 01:35:08,706 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7070707070707071 [2024-11-19 01:35:08,708 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 70 transitions. [2024-11-19 01:35:08,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 140 flow [2024-11-19 01:35:08,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:35:08,714 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-11-19 01:35:08,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-19 01:35:08,721 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2024-11-19 01:35:08,721 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-11-19 01:35:08,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:08,722 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:08,722 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:08,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:35:08,722 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:08,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:08,723 INFO L85 PathProgramCache]: Analyzing trace with hash 725790871, now seen corresponding path program 1 times [2024-11-19 01:35:08,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:08,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661068219] [2024-11-19 01:35:08,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:08,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:09,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:09,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:09,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661068219] [2024-11-19 01:35:09,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661068219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:09,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:09,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:35:09,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88009593] [2024-11-19 01:35:09,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:09,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:35:09,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:09,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:35:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:35:09,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:09,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:09,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:09,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:09,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:09,703 INFO L124 PetriNetUnfolderBase]: 426/800 cut-off events. [2024-11-19 01:35:09,704 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-19 01:35:09,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 800 events. 426/800 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4189 event pairs, 96 based on Foata normal form. 0/774 useless extension candidates. Maximal degree in co-relation 1568. Up to 358 conditions per place. [2024-11-19 01:35:09,709 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 24 selfloop transitions, 2 changer transitions 39/73 dead transitions. [2024-11-19 01:35:09,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 73 transitions, 288 flow [2024-11-19 01:35:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:35:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:35:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-11-19 01:35:09,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2024-11-19 01:35:09,714 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 8 states and 147 transitions. [2024-11-19 01:35:09,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 73 transitions, 288 flow [2024-11-19 01:35:09,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 73 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:35:09,717 INFO L231 Difference]: Finished difference. Result has 45 places, 27 transitions, 74 flow [2024-11-19 01:35:09,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2024-11-19 01:35:09,720 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-11-19 01:35:09,720 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 27 transitions, 74 flow [2024-11-19 01:35:09,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:09,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:09,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:09,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:35:09,722 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:09,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:09,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1338166714, now seen corresponding path program 1 times [2024-11-19 01:35:09,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:09,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715675390] [2024-11-19 01:35:09,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:09,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:10,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:10,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715675390] [2024-11-19 01:35:10,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715675390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:10,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:10,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:35:10,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511937113] [2024-11-19 01:35:10,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:10,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:35:10,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:35:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:35:10,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-19 01:35:10,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 27 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:10,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:10,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-19 01:35:10,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:10,344 INFO L124 PetriNetUnfolderBase]: 245/496 cut-off events. [2024-11-19 01:35:10,344 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-11-19 01:35:10,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 496 events. 245/496 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2469 event pairs, 69 based on Foata normal form. 20/511 useless extension candidates. Maximal degree in co-relation 1046. Up to 253 conditions per place. [2024-11-19 01:35:10,350 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 25 selfloop transitions, 2 changer transitions 23/59 dead transitions. [2024-11-19 01:35:10,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 250 flow [2024-11-19 01:35:10,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:35:10,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:35:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-11-19 01:35:10,353 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5584415584415584 [2024-11-19 01:35:10,354 INFO L175 Difference]: Start difference. First operand has 45 places, 27 transitions, 74 flow. Second operand 7 states and 129 transitions. [2024-11-19 01:35:10,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 250 flow [2024-11-19 01:35:10,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 59 transitions, 230 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-19 01:35:10,361 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 78 flow [2024-11-19 01:35:10,361 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=78, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2024-11-19 01:35:10,362 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-11-19 01:35:10,362 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 78 flow [2024-11-19 01:35:10,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:10,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:10,363 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:10,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:35:10,363 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:10,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1356102712, now seen corresponding path program 1 times [2024-11-19 01:35:10,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:10,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273394559] [2024-11-19 01:35:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:10,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:11,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:11,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:11,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273394559] [2024-11-19 01:35:11,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273394559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:11,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:11,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:35:11,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916656007] [2024-11-19 01:35:11,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:11,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:35:11,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:35:11,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:35:11,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-11-19 01:35:11,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 78 flow. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:11,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:11,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-11-19 01:35:11,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:12,492 INFO L124 PetriNetUnfolderBase]: 559/1030 cut-off events. [2024-11-19 01:35:12,492 INFO L125 PetriNetUnfolderBase]: For 304/305 co-relation queries the response was YES. [2024-11-19 01:35:12,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2336 conditions, 1030 events. 559/1030 cut-off events. For 304/305 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5102 event pairs, 87 based on Foata normal form. 23/1052 useless extension candidates. Maximal degree in co-relation 2320. Up to 587 conditions per place. [2024-11-19 01:35:12,499 INFO L140 encePairwiseOnDemand]: 20/33 looper letters, 62 selfloop transitions, 25 changer transitions 29/122 dead transitions. [2024-11-19 01:35:12,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 122 transitions, 569 flow [2024-11-19 01:35:12,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 01:35:12,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-19 01:35:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 247 transitions. [2024-11-19 01:35:12,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4678030303030303 [2024-11-19 01:35:12,504 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 78 flow. Second operand 16 states and 247 transitions. [2024-11-19 01:35:12,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 122 transitions, 569 flow [2024-11-19 01:35:12,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 122 transitions, 515 flow, removed 22 selfloop flow, removed 6 redundant places. [2024-11-19 01:35:12,511 INFO L231 Difference]: Finished difference. Result has 61 places, 52 transitions, 243 flow [2024-11-19 01:35:12,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=243, PETRI_PLACES=61, PETRI_TRANSITIONS=52} [2024-11-19 01:35:12,512 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 24 predicate places. [2024-11-19 01:35:12,513 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 52 transitions, 243 flow [2024-11-19 01:35:12,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 9 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:12,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:12,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:12,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:35:12,514 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:12,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1195211688, now seen corresponding path program 2 times [2024-11-19 01:35:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:12,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027974599] [2024-11-19 01:35:12,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:35:12,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:12,594 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:35:12,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:14,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:14,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:14,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027974599] [2024-11-19 01:35:14,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027974599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:14,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:14,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:35:14,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800606914] [2024-11-19 01:35:14,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:14,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:35:14,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:14,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:35:14,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:35:14,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:14,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 52 transitions, 243 flow. Second operand has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:14,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:14,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:14,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:14,591 INFO L124 PetriNetUnfolderBase]: 423/867 cut-off events. [2024-11-19 01:35:14,592 INFO L125 PetriNetUnfolderBase]: For 969/997 co-relation queries the response was YES. [2024-11-19 01:35:14,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2667 conditions, 867 events. 423/867 cut-off events. For 969/997 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4709 event pairs, 71 based on Foata normal form. 19/884 useless extension candidates. Maximal degree in co-relation 2643. Up to 604 conditions per place. [2024-11-19 01:35:14,600 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 50 selfloop transitions, 14 changer transitions 21/95 dead transitions. [2024-11-19 01:35:14,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 95 transitions, 606 flow [2024-11-19 01:35:14,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:35:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:35:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2024-11-19 01:35:14,602 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5050505050505051 [2024-11-19 01:35:14,602 INFO L175 Difference]: Start difference. First operand has 61 places, 52 transitions, 243 flow. Second operand 9 states and 150 transitions. [2024-11-19 01:35:14,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 95 transitions, 606 flow [2024-11-19 01:35:14,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 95 transitions, 582 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-11-19 01:35:14,610 INFO L231 Difference]: Finished difference. Result has 63 places, 61 transitions, 351 flow [2024-11-19 01:35:14,611 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=351, PETRI_PLACES=63, PETRI_TRANSITIONS=61} [2024-11-19 01:35:14,612 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 26 predicate places. [2024-11-19 01:35:14,613 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 61 transitions, 351 flow [2024-11-19 01:35:14,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.555555555555555) internal successors, (104), 9 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:14,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:14,614 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:14,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:35:14,614 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:14,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:14,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1439322592, now seen corresponding path program 3 times [2024-11-19 01:35:14,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:14,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701845241] [2024-11-19 01:35:14,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:35:14,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:14,666 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:35:14,667 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:15,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:15,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701845241] [2024-11-19 01:35:15,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701845241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:15,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:15,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:35:15,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743158575] [2024-11-19 01:35:15,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:15,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:35:15,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:15,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:35:15,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:35:15,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:15,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 61 transitions, 351 flow. Second operand has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:15,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:15,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:15,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:16,238 INFO L124 PetriNetUnfolderBase]: 426/882 cut-off events. [2024-11-19 01:35:16,239 INFO L125 PetriNetUnfolderBase]: For 1352/1389 co-relation queries the response was YES. [2024-11-19 01:35:16,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2883 conditions, 882 events. 426/882 cut-off events. For 1352/1389 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4834 event pairs, 37 based on Foata normal form. 57/938 useless extension candidates. Maximal degree in co-relation 2857. Up to 520 conditions per place. [2024-11-19 01:35:16,245 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 51 selfloop transitions, 26 changer transitions 27/114 dead transitions. [2024-11-19 01:35:16,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 114 transitions, 821 flow [2024-11-19 01:35:16,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:35:16,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-19 01:35:16,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 182 transitions. [2024-11-19 01:35:16,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5013774104683195 [2024-11-19 01:35:16,247 INFO L175 Difference]: Start difference. First operand has 63 places, 61 transitions, 351 flow. Second operand 11 states and 182 transitions. [2024-11-19 01:35:16,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 114 transitions, 821 flow [2024-11-19 01:35:16,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 114 transitions, 782 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-11-19 01:35:16,256 INFO L231 Difference]: Finished difference. Result has 72 places, 68 transitions, 467 flow [2024-11-19 01:35:16,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=467, PETRI_PLACES=72, PETRI_TRANSITIONS=68} [2024-11-19 01:35:16,257 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 35 predicate places. [2024-11-19 01:35:16,258 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 68 transitions, 467 flow [2024-11-19 01:35:16,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.4) internal successors, (114), 10 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:16,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:16,259 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:16,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:35:16,259 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:16,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:16,260 INFO L85 PathProgramCache]: Analyzing trace with hash 682971266, now seen corresponding path program 4 times [2024-11-19 01:35:16,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:16,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866610289] [2024-11-19 01:35:16,261 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:35:16,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:16,341 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:35:16,341 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:17,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:17,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866610289] [2024-11-19 01:35:17,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866610289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:17,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:35:17,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668565430] [2024-11-19 01:35:17,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:17,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 01:35:17,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:17,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 01:35:17,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-19 01:35:17,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-19 01:35:17,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 467 flow. Second operand has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 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) [2024-11-19 01:35:17,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:17,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-19 01:35:17,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:18,197 INFO L124 PetriNetUnfolderBase]: 440/901 cut-off events. [2024-11-19 01:35:18,198 INFO L125 PetriNetUnfolderBase]: For 2136/2211 co-relation queries the response was YES. [2024-11-19 01:35:18,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3270 conditions, 901 events. 440/901 cut-off events. For 2136/2211 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4955 event pairs, 47 based on Foata normal form. 22/922 useless extension candidates. Maximal degree in co-relation 3239. Up to 602 conditions per place. [2024-11-19 01:35:18,205 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 73 selfloop transitions, 25 changer transitions 17/125 dead transitions. [2024-11-19 01:35:18,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 1006 flow [2024-11-19 01:35:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:35:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 01:35:18,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 209 transitions. [2024-11-19 01:35:18,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2024-11-19 01:35:18,208 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 467 flow. Second operand 12 states and 209 transitions. [2024-11-19 01:35:18,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 1006 flow [2024-11-19 01:35:18,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 125 transitions, 982 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-19 01:35:18,218 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 689 flow [2024-11-19 01:35:18,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=689, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2024-11-19 01:35:18,220 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 47 predicate places. [2024-11-19 01:35:18,220 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 689 flow [2024-11-19 01:35:18,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.4) internal successors, (124), 10 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) [2024-11-19 01:35:18,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:18,221 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:18,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:35:18,221 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:18,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:18,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1505175666, now seen corresponding path program 5 times [2024-11-19 01:35:18,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:18,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338287058] [2024-11-19 01:35:18,222 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-19 01:35:18,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:18,274 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:35:18,275 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:18,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:18,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338287058] [2024-11-19 01:35:18,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338287058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:18,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:18,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:35:18,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627048051] [2024-11-19 01:35:18,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:18,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:35:18,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:35:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:35:18,957 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 33 [2024-11-19 01:35:18,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 83 transitions, 689 flow. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:18,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:18,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 33 [2024-11-19 01:35:18,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:19,289 INFO L124 PetriNetUnfolderBase]: 676/1232 cut-off events. [2024-11-19 01:35:19,289 INFO L125 PetriNetUnfolderBase]: For 4280/4348 co-relation queries the response was YES. [2024-11-19 01:35:19,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5012 conditions, 1232 events. 676/1232 cut-off events. For 4280/4348 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6520 event pairs, 40 based on Foata normal form. 79/1311 useless extension candidates. Maximal degree in co-relation 4974. Up to 720 conditions per place. [2024-11-19 01:35:19,301 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 103 selfloop transitions, 8 changer transitions 1/117 dead transitions. [2024-11-19 01:35:19,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 117 transitions, 1165 flow [2024-11-19 01:35:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:35:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:35:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2024-11-19 01:35:19,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2024-11-19 01:35:19,303 INFO L175 Difference]: Start difference. First operand has 84 places, 83 transitions, 689 flow. Second operand 4 states and 73 transitions. [2024-11-19 01:35:19,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 117 transitions, 1165 flow [2024-11-19 01:35:19,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 117 transitions, 1114 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-19 01:35:19,316 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 600 flow [2024-11-19 01:35:19,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=566, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=600, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-11-19 01:35:19,317 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 41 predicate places. [2024-11-19 01:35:19,320 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 600 flow [2024-11-19 01:35:19,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:19,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:19,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:19,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:35:19,322 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:19,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:19,322 INFO L85 PathProgramCache]: Analyzing trace with hash -2100083922, now seen corresponding path program 6 times [2024-11-19 01:35:19,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:19,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260810098] [2024-11-19 01:35:19,322 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-19 01:35:19,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:19,377 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-19 01:35:19,378 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:20,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:20,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260810098] [2024-11-19 01:35:20,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260810098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:20,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:20,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:35:20,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685370505] [2024-11-19 01:35:20,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:20,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:35:20,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:20,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:35:20,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:35:20,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:20,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 600 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:20,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:20,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:20,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:20,577 INFO L124 PetriNetUnfolderBase]: 447/891 cut-off events. [2024-11-19 01:35:20,578 INFO L125 PetriNetUnfolderBase]: For 2545/2573 co-relation queries the response was YES. [2024-11-19 01:35:20,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3524 conditions, 891 events. 447/891 cut-off events. For 2545/2573 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4746 event pairs, 93 based on Foata normal form. 21/912 useless extension candidates. Maximal degree in co-relation 3488. Up to 571 conditions per place. [2024-11-19 01:35:20,586 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 46 selfloop transitions, 34 changer transitions 21/111 dead transitions. [2024-11-19 01:35:20,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 111 transitions, 1007 flow [2024-11-19 01:35:20,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:35:20,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:35:20,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 164 transitions. [2024-11-19 01:35:20,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49696969696969695 [2024-11-19 01:35:20,588 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 600 flow. Second operand 10 states and 164 transitions. [2024-11-19 01:35:20,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 111 transitions, 1007 flow [2024-11-19 01:35:20,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 111 transitions, 972 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-19 01:35:20,596 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 739 flow [2024-11-19 01:35:20,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=739, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2024-11-19 01:35:20,598 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 51 predicate places. [2024-11-19 01:35:20,599 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 739 flow [2024-11-19 01:35:20,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:20,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:20,600 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:20,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:35:20,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:20,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:20,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1371563708, now seen corresponding path program 1 times [2024-11-19 01:35:20,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:20,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940937818] [2024-11-19 01:35:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:20,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:20,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:20,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:20,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940937818] [2024-11-19 01:35:20,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940937818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:20,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:20,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:35:20,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642575871] [2024-11-19 01:35:20,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:20,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:35:20,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:20,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:35:20,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:35:20,835 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:20,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 739 flow. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:20,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:20,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:20,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:21,068 INFO L124 PetriNetUnfolderBase]: 451/854 cut-off events. [2024-11-19 01:35:21,068 INFO L125 PetriNetUnfolderBase]: For 3596/3670 co-relation queries the response was YES. [2024-11-19 01:35:21,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3652 conditions, 854 events. 451/854 cut-off events. For 3596/3670 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4244 event pairs, 79 based on Foata normal form. 77/913 useless extension candidates. Maximal degree in co-relation 3613. Up to 331 conditions per place. [2024-11-19 01:35:21,077 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 85 selfloop transitions, 6 changer transitions 1/102 dead transitions. [2024-11-19 01:35:21,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 102 transitions, 1053 flow [2024-11-19 01:35:21,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:35:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:35:21,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-19 01:35:21,078 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-19 01:35:21,079 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 739 flow. Second operand 4 states and 84 transitions. [2024-11-19 01:35:21,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 102 transitions, 1053 flow [2024-11-19 01:35:21,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 102 transitions, 987 flow, removed 23 selfloop flow, removed 11 redundant places. [2024-11-19 01:35:21,092 INFO L231 Difference]: Finished difference. Result has 77 places, 71 transitions, 602 flow [2024-11-19 01:35:21,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=602, PETRI_PLACES=77, PETRI_TRANSITIONS=71} [2024-11-19 01:35:21,093 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 40 predicate places. [2024-11-19 01:35:21,094 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 71 transitions, 602 flow [2024-11-19 01:35:21,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:21,095 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:21,095 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:21,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:35:21,096 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:21,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:21,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1807476639, now seen corresponding path program 1 times [2024-11-19 01:35:21,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:21,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037993151] [2024-11-19 01:35:21,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:21,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:22,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:22,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:22,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037993151] [2024-11-19 01:35:22,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037993151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:22,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:22,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:35:22,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290675477] [2024-11-19 01:35:22,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:22,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:35:22,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:22,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:35:22,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:35:22,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:22,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 602 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:22,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:22,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:22,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:23,186 INFO L124 PetriNetUnfolderBase]: 315/668 cut-off events. [2024-11-19 01:35:23,187 INFO L125 PetriNetUnfolderBase]: For 2027/2048 co-relation queries the response was YES. [2024-11-19 01:35:23,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2731 conditions, 668 events. 315/668 cut-off events. For 2027/2048 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3342 event pairs, 57 based on Foata normal form. 24/687 useless extension candidates. Maximal degree in co-relation 2698. Up to 429 conditions per place. [2024-11-19 01:35:23,192 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 52 selfloop transitions, 24 changer transitions 13/101 dead transitions. [2024-11-19 01:35:23,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 101 transitions, 944 flow [2024-11-19 01:35:23,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:35:23,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:35:23,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 161 transitions. [2024-11-19 01:35:23,194 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48787878787878786 [2024-11-19 01:35:23,194 INFO L175 Difference]: Start difference. First operand has 77 places, 71 transitions, 602 flow. Second operand 10 states and 161 transitions. [2024-11-19 01:35:23,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 101 transitions, 944 flow [2024-11-19 01:35:23,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 101 transitions, 918 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-19 01:35:23,202 INFO L231 Difference]: Finished difference. Result has 88 places, 73 transitions, 678 flow [2024-11-19 01:35:23,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=678, PETRI_PLACES=88, PETRI_TRANSITIONS=73} [2024-11-19 01:35:23,203 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 51 predicate places. [2024-11-19 01:35:23,203 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 73 transitions, 678 flow [2024-11-19 01:35:23,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:23,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:23,204 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:23,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:35:23,204 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:23,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:23,205 INFO L85 PathProgramCache]: Analyzing trace with hash 937550407, now seen corresponding path program 2 times [2024-11-19 01:35:23,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:23,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581025398] [2024-11-19 01:35:23,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:35:23,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:23,252 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:35:23,252 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:24,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:24,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:24,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581025398] [2024-11-19 01:35:24,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581025398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:24,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:24,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:35:24,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241151937] [2024-11-19 01:35:24,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:24,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:35:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:24,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:35:24,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:35:24,742 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:24,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 73 transitions, 678 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:24,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:24,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:24,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:25,366 INFO L124 PetriNetUnfolderBase]: 325/687 cut-off events. [2024-11-19 01:35:25,366 INFO L125 PetriNetUnfolderBase]: For 3112/3132 co-relation queries the response was YES. [2024-11-19 01:35:25,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3016 conditions, 687 events. 325/687 cut-off events. For 3112/3132 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3469 event pairs, 59 based on Foata normal form. 10/694 useless extension candidates. Maximal degree in co-relation 2978. Up to 417 conditions per place. [2024-11-19 01:35:25,372 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 53 selfloop transitions, 25 changer transitions 13/103 dead transitions. [2024-11-19 01:35:25,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 103 transitions, 1060 flow [2024-11-19 01:35:25,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:35:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:35:25,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 159 transitions. [2024-11-19 01:35:25,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4818181818181818 [2024-11-19 01:35:25,374 INFO L175 Difference]: Start difference. First operand has 88 places, 73 transitions, 678 flow. Second operand 10 states and 159 transitions. [2024-11-19 01:35:25,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 103 transitions, 1060 flow [2024-11-19 01:35:25,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 103 transitions, 977 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-11-19 01:35:25,383 INFO L231 Difference]: Finished difference. Result has 91 places, 76 transitions, 744 flow [2024-11-19 01:35:25,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=744, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2024-11-19 01:35:25,384 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 54 predicate places. [2024-11-19 01:35:25,384 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 744 flow [2024-11-19 01:35:25,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:25,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:25,385 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:25,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 01:35:25,385 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:25,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:25,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1723216377, now seen corresponding path program 3 times [2024-11-19 01:35:25,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:25,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097752419] [2024-11-19 01:35:25,386 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:35:25,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:25,498 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:35:25,498 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:25,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:25,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097752419] [2024-11-19 01:35:25,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097752419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:25,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:25,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:35:25,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100156813] [2024-11-19 01:35:25,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:25,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:35:25,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:25,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:35:25,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:35:25,646 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:25,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 744 flow. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:25,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:25,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:25,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:25,868 INFO L124 PetriNetUnfolderBase]: 255/502 cut-off events. [2024-11-19 01:35:25,869 INFO L125 PetriNetUnfolderBase]: For 2506/2550 co-relation queries the response was YES. [2024-11-19 01:35:25,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2244 conditions, 502 events. 255/502 cut-off events. For 2506/2550 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2188 event pairs, 71 based on Foata normal form. 48/538 useless extension candidates. Maximal degree in co-relation 2204. Up to 234 conditions per place. [2024-11-19 01:35:25,873 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 75 selfloop transitions, 8 changer transitions 1/94 dead transitions. [2024-11-19 01:35:25,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 94 transitions, 1043 flow [2024-11-19 01:35:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:35:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 01:35:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2024-11-19 01:35:25,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5393939393939394 [2024-11-19 01:35:25,875 INFO L175 Difference]: Start difference. First operand has 91 places, 76 transitions, 744 flow. Second operand 5 states and 89 transitions. [2024-11-19 01:35:25,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 94 transitions, 1043 flow [2024-11-19 01:35:25,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 94 transitions, 936 flow, removed 34 selfloop flow, removed 9 redundant places. [2024-11-19 01:35:25,884 INFO L231 Difference]: Finished difference. Result has 84 places, 74 transitions, 670 flow [2024-11-19 01:35:25,884 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=670, PETRI_PLACES=84, PETRI_TRANSITIONS=74} [2024-11-19 01:35:25,886 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 47 predicate places. [2024-11-19 01:35:25,886 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 74 transitions, 670 flow [2024-11-19 01:35:25,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:25,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:25,886 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:25,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:35:25,887 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:25,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:25,887 INFO L85 PathProgramCache]: Analyzing trace with hash 804898880, now seen corresponding path program 1 times [2024-11-19 01:35:25,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:25,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170756902] [2024-11-19 01:35:25,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:25,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:26,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:26,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:26,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170756902] [2024-11-19 01:35:26,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170756902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:26,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:26,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:35:26,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234040033] [2024-11-19 01:35:26,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:26,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:35:26,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:26,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:35:26,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:35:26,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:26,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 74 transitions, 670 flow. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:26,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:26,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:26,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:27,053 INFO L124 PetriNetUnfolderBase]: 223/498 cut-off events. [2024-11-19 01:35:27,053 INFO L125 PetriNetUnfolderBase]: For 1556/1578 co-relation queries the response was YES. [2024-11-19 01:35:27,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1950 conditions, 498 events. 223/498 cut-off events. For 1556/1578 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2316 event pairs, 51 based on Foata normal form. 20/512 useless extension candidates. Maximal degree in co-relation 1914. Up to 168 conditions per place. [2024-11-19 01:35:27,057 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 35 selfloop transitions, 9 changer transitions 41/95 dead transitions. [2024-11-19 01:35:27,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 920 flow [2024-11-19 01:35:27,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:35:27,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:35:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 117 transitions. [2024-11-19 01:35:27,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5064935064935064 [2024-11-19 01:35:27,058 INFO L175 Difference]: Start difference. First operand has 84 places, 74 transitions, 670 flow. Second operand 7 states and 117 transitions. [2024-11-19 01:35:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 920 flow [2024-11-19 01:35:27,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 95 transitions, 848 flow, removed 20 selfloop flow, removed 9 redundant places. [2024-11-19 01:35:27,065 INFO L231 Difference]: Finished difference. Result has 84 places, 52 transitions, 407 flow [2024-11-19 01:35:27,066 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=612, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=407, PETRI_PLACES=84, PETRI_TRANSITIONS=52} [2024-11-19 01:35:27,066 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 47 predicate places. [2024-11-19 01:35:27,066 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 52 transitions, 407 flow [2024-11-19 01:35:27,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:27,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:27,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:27,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 01:35:27,067 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:27,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash 767150632, now seen corresponding path program 2 times [2024-11-19 01:35:27,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:27,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178685366] [2024-11-19 01:35:27,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:35:27,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:27,103 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:35:27,104 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:27,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:27,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:27,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178685366] [2024-11-19 01:35:27,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178685366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:27,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:27,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:35:27,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692880669] [2024-11-19 01:35:27,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:27,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:35:27,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:27,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:35:27,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:35:27,670 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:27,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 52 transitions, 407 flow. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:27,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:27,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:27,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:27,892 INFO L124 PetriNetUnfolderBase]: 136/326 cut-off events. [2024-11-19 01:35:27,893 INFO L125 PetriNetUnfolderBase]: For 677/685 co-relation queries the response was YES. [2024-11-19 01:35:27,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1100 conditions, 326 events. 136/326 cut-off events. For 677/685 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1298 event pairs, 54 based on Foata normal form. 10/328 useless extension candidates. Maximal degree in co-relation 1067. Up to 120 conditions per place. [2024-11-19 01:35:27,895 INFO L140 encePairwiseOnDemand]: 24/33 looper letters, 23 selfloop transitions, 8 changer transitions 32/73 dead transitions. [2024-11-19 01:35:27,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 73 transitions, 601 flow [2024-11-19 01:35:27,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:35:27,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:35:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions. [2024-11-19 01:35:27,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48484848484848486 [2024-11-19 01:35:27,897 INFO L175 Difference]: Start difference. First operand has 84 places, 52 transitions, 407 flow. Second operand 8 states and 128 transitions. [2024-11-19 01:35:27,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 73 transitions, 601 flow [2024-11-19 01:35:27,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 73 transitions, 485 flow, removed 10 selfloop flow, removed 21 redundant places. [2024-11-19 01:35:27,901 INFO L231 Difference]: Finished difference. Result has 70 places, 39 transitions, 223 flow [2024-11-19 01:35:27,901 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=223, PETRI_PLACES=70, PETRI_TRANSITIONS=39} [2024-11-19 01:35:27,902 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 33 predicate places. [2024-11-19 01:35:27,902 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 39 transitions, 223 flow [2024-11-19 01:35:27,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:27,902 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:27,902 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:27,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 01:35:27,903 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:27,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:27,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1806215824, now seen corresponding path program 3 times [2024-11-19 01:35:27,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:27,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621991062] [2024-11-19 01:35:27,905 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:35:27,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:27,951 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:35:27,951 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:29,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621991062] [2024-11-19 01:35:29,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621991062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:29,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:29,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 01:35:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653197075] [2024-11-19 01:35:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:29,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 01:35:29,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:29,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 01:35:29,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:35:29,130 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-11-19 01:35:29,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 39 transitions, 223 flow. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:29,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:29,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-11-19 01:35:29,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:29,477 INFO L124 PetriNetUnfolderBase]: 91/238 cut-off events. [2024-11-19 01:35:29,478 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-11-19 01:35:29,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 677 conditions, 238 events. 91/238 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 845 event pairs, 21 based on Foata normal form. 4/238 useless extension candidates. Maximal degree in co-relation 656. Up to 72 conditions per place. [2024-11-19 01:35:29,479 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 18 selfloop transitions, 4 changer transitions 27/59 dead transitions. [2024-11-19 01:35:29,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 380 flow [2024-11-19 01:35:29,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:35:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:35:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 135 transitions. [2024-11-19 01:35:29,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2024-11-19 01:35:29,480 INFO L175 Difference]: Start difference. First operand has 70 places, 39 transitions, 223 flow. Second operand 9 states and 135 transitions. [2024-11-19 01:35:29,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 380 flow [2024-11-19 01:35:29,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 59 transitions, 290 flow, removed 15 selfloop flow, removed 13 redundant places. [2024-11-19 01:35:29,482 INFO L231 Difference]: Finished difference. Result has 62 places, 29 transitions, 108 flow [2024-11-19 01:35:29,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=108, PETRI_PLACES=62, PETRI_TRANSITIONS=29} [2024-11-19 01:35:29,483 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 25 predicate places. [2024-11-19 01:35:29,483 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 29 transitions, 108 flow [2024-11-19 01:35:29,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:29,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:29,483 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:29,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 01:35:29,483 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-19 01:35:29,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:29,484 INFO L85 PathProgramCache]: Analyzing trace with hash -793706080, now seen corresponding path program 4 times [2024-11-19 01:35:29,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:29,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729591165] [2024-11-19 01:35:29,484 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-19 01:35:29,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:29,573 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-19 01:35:29,573 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:31,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:31,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729591165] [2024-11-19 01:35:31,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729591165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:31,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:31,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-19 01:35:31,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973026634] [2024-11-19 01:35:31,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:31,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 01:35:31,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:31,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 01:35:31,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:35:31,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-11-19 01:35:31,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 29 transitions, 108 flow. Second operand has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:31,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:31,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-11-19 01:35:31,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:31,570 INFO L124 PetriNetUnfolderBase]: 37/100 cut-off events. [2024-11-19 01:35:31,570 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-19 01:35:31,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 100 events. 37/100 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 220 event pairs, 4 based on Foata normal form. 4/102 useless extension candidates. Maximal degree in co-relation 239. Up to 43 conditions per place. [2024-11-19 01:35:31,570 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-11-19 01:35:31,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 35 transitions, 170 flow [2024-11-19 01:35:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:35:31,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:35:31,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 115 transitions. [2024-11-19 01:35:31,571 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4356060606060606 [2024-11-19 01:35:31,571 INFO L175 Difference]: Start difference. First operand has 62 places, 29 transitions, 108 flow. Second operand 8 states and 115 transitions. [2024-11-19 01:35:31,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 35 transitions, 170 flow [2024-11-19 01:35:31,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 35 transitions, 144 flow, removed 3 selfloop flow, removed 13 redundant places. [2024-11-19 01:35:31,572 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-11-19 01:35:31,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-11-19 01:35:31,573 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-11-19 01:35:31,573 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-11-19 01:35:31,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.416666666666666) internal successors, (149), 12 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:35:31,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-19 01:35:31,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-19 01:35:31,577 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-19 01:35:31,577 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-19 01:35:31,577 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-19 01:35:31,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 01:35:31,577 INFO L407 BasicCegarLoop]: Path program histogram: [6, 4, 3, 1, 1, 1, 1] [2024-11-19 01:35:31,583 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-19 01:35:31,583 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 01:35:31,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:35:31 BasicIcfg [2024-11-19 01:35:31,588 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 01:35:31,588 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 01:35:31,588 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 01:35:31,588 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 01:35:31,589 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:07" (3/4) ... [2024-11-19 01:35:31,590 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 01:35:31,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-19 01:35:31,592 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-19 01:35:31,597 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-19 01:35:31,597 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-19 01:35:31,597 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 01:35:31,597 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 01:35:31,678 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 01:35:31,679 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 01:35:31,679 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 01:35:31,679 INFO L158 Benchmark]: Toolchain (without parser) took 25871.68ms. Allocated memory was 155.2MB in the beginning and 796.9MB in the end (delta: 641.7MB). Free memory was 84.4MB in the beginning and 622.6MB in the end (delta: -538.2MB). Peak memory consumption was 105.4MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,680 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 01:35:31,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.50ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 114.6MB in the end (delta: -30.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.30ms. Allocated memory is still 155.2MB. Free memory was 114.6MB in the beginning and 111.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,680 INFO L158 Benchmark]: Boogie Preprocessor took 61.46ms. Allocated memory is still 155.2MB. Free memory was 111.5MB in the beginning and 107.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,681 INFO L158 Benchmark]: RCFGBuilder took 975.15ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 110.9MB in the end (delta: -4.1MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,681 INFO L158 Benchmark]: TraceAbstraction took 23967.55ms. Allocated memory was 155.2MB in the beginning and 796.9MB in the end (delta: 641.7MB). Free memory was 110.0MB in the beginning and 627.8MB in the end (delta: -517.8MB). Peak memory consumption was 123.5MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,681 INFO L158 Benchmark]: Witness Printer took 90.89ms. Allocated memory is still 796.9MB. Free memory was 627.8MB in the beginning and 622.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-19 01:35:31,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.50ms. Allocated memory is still 155.2MB. Free memory was 84.1MB in the beginning and 114.6MB in the end (delta: -30.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.30ms. Allocated memory is still 155.2MB. Free memory was 114.6MB in the beginning and 111.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.46ms. Allocated memory is still 155.2MB. Free memory was 111.5MB in the beginning and 107.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 975.15ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 110.9MB in the end (delta: -4.1MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23967.55ms. Allocated memory was 155.2MB in the beginning and 796.9MB in the end (delta: 641.7MB). Free memory was 110.0MB in the beginning and 627.8MB in the end (delta: -517.8MB). Peak memory consumption was 123.5MB. Max. memory is 16.1GB. * Witness Printer took 90.89ms. Allocated memory is still 796.9MB. Free memory was 627.8MB in the beginning and 622.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 23.8s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 680 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 646 mSDsluCounter, 463 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 428 mSDsCounter, 225 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2941 IncrementalHoareTripleChecker+Invalid, 3166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 225 mSolverCounterUnsat, 35 mSDtfsCounter, 2941 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 184 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=744occurred in iteration=12, InterpolantAutomatonStates: 141, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 341 NumberOfCodeBlocks, 341 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 3823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 01:35:31,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE