./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/weaver/chl-word-trans.wvr.c -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 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:28:52,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:28:52,233 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:28:52,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:28:52,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:28:52,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:28:52,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:28:52,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:28:52,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:28:52,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:28:52,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:28:52,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:28:52,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:28:52,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:28:52,270 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:28:52,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:28:52,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:28:52,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:28:52,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:28:52,271 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:28:52,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:28:52,275 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:28:52,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:28:52,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:28:52,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:28:52,276 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:28:52,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:28:52,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:28:52,277 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:28:52,277 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:28:52,277 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:28:52,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:28:52,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:28:52,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:28:52,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:28:52,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:28:52,279 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:28:52,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:28:52,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:28:52,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:28:52,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:28:52,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:28:52,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 [2024-11-10 10:28:52,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:28:52,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:28:52,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:28:52,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:28:52,558 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:28:52,559 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-10 10:28:54,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:28:54,292 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:28:54,293 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-10 10:28:54,302 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee005b522/eea703bd1084493a90dcb82ebadb52e2/FLAG09c30c79c [2024-11-10 10:28:54,315 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee005b522/eea703bd1084493a90dcb82ebadb52e2 [2024-11-10 10:28:54,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:28:54,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:28:54,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:28:54,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:28:54,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:28:54,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1158f090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54, skipping insertion in model container [2024-11-10 10:28:54,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:28:54,581 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/weaver/chl-word-trans.wvr.c[3331,3344] [2024-11-10 10:28:54,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:28:54,609 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:28:54,646 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/weaver/chl-word-trans.wvr.c[3331,3344] [2024-11-10 10:28:54,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:28:54,677 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:28:54,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54 WrapperNode [2024-11-10 10:28:54,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:28:54,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:28:54,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:28:54,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:28:54,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,697 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,726 INFO L138 Inliner]: procedures = 24, calls = 29, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 162 [2024-11-10 10:28:54,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:28:54,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:28:54,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:28:54,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:28:54,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,746 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,769 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-10 10:28:54,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,781 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:28:54,788 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:28:54,791 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:28:54,791 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:28:54,792 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (1/1) ... [2024-11-10 10:28:54,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:28:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:28:54,834 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) [2024-11-10 10:28:54,840 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 [2024-11-10 10:28:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:28:54,888 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 10:28:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 10:28:54,889 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 10:28:54,889 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 10:28:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 10:28:54,890 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 10:28:54,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:28:54,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:28:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:28:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:28:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:28:54,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:28:54,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:28:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:28:54,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:28:54,895 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:28:55,002 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:28:55,004 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:28:55,364 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:28:55,364 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:28:55,641 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:28:55,641 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:28:55,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:28:55 BoogieIcfgContainer [2024-11-10 10:28:55,641 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:28:55,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:28:55,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:28:55,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:28:55,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:28:54" (1/3) ... [2024-11-10 10:28:55,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fe6d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:28:55, skipping insertion in model container [2024-11-10 10:28:55,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:28:54" (2/3) ... [2024-11-10 10:28:55,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79fe6d5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:28:55, skipping insertion in model container [2024-11-10 10:28:55,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:28:55" (3/3) ... [2024-11-10 10:28:55,651 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2024-11-10 10:28:55,669 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:28:55,669 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:28:55,669 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:28:55,773 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 10:28:55,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 64 transitions, 149 flow [2024-11-10 10:28:55,897 INFO L124 PetriNetUnfolderBase]: 18/61 cut-off events. [2024-11-10 10:28:55,897 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 10:28:55,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 61 events. 18/61 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 102 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2024-11-10 10:28:55,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 64 transitions, 149 flow [2024-11-10 10:28:55,909 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 60 transitions, 138 flow [2024-11-10 10:28:55,917 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:28:55,923 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;@63fc4c31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:28:55,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-10 10:28:55,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:28:55,938 INFO L124 PetriNetUnfolderBase]: 18/59 cut-off events. [2024-11-10 10:28:55,939 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 10:28:55,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:28:55,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:28:55,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:28:55,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:28:55,945 INFO L85 PathProgramCache]: Analyzing trace with hash 3046949, now seen corresponding path program 1 times [2024-11-10 10:28:55,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:28:55,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095616684] [2024-11-10 10:28:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:28:55,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:28:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:28:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:28:56,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:28:56,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095616684] [2024-11-10 10:28:56,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095616684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:28:56,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:28:56,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:28:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086027527] [2024-11-10 10:28:56,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:28:56,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:28:56,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:28:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:28:56,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:28:56,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:28:56,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 60 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2024-11-10 10:28:56,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:28:56,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:28:56,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:28:56,684 INFO L124 PetriNetUnfolderBase]: 2412/3378 cut-off events. [2024-11-10 10:28:56,684 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2024-11-10 10:28:56,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6707 conditions, 3378 events. 2412/3378 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 14363 event pairs, 1460 based on Foata normal form. 314/3000 useless extension candidates. Maximal degree in co-relation 6252. Up to 3174 conditions per place. [2024-11-10 10:28:56,716 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 41 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2024-11-10 10:28:56,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 54 transitions, 208 flow [2024-11-10 10:28:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 10:28:56,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 10:28:56,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 79 transitions. [2024-11-10 10:28:56,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6171875 [2024-11-10 10:28:56,732 INFO L175 Difference]: Start difference. First operand has 52 places, 60 transitions, 138 flow. Second operand 2 states and 79 transitions. [2024-11-10 10:28:56,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 54 transitions, 208 flow [2024-11-10 10:28:56,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 54 transitions, 196 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 10:28:56,746 INFO L231 Difference]: Finished difference. Result has 47 places, 54 transitions, 114 flow [2024-11-10 10:28:56,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=114, PETRI_PLACES=47, PETRI_TRANSITIONS=54} [2024-11-10 10:28:56,752 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2024-11-10 10:28:56,752 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 54 transitions, 114 flow [2024-11-10 10:28:56,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2024-11-10 10:28:56,753 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:28:56,753 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:28:56,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:28:56,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:28:56,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:28:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1178477827, now seen corresponding path program 1 times [2024-11-10 10:28:56,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:28:56,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618475456] [2024-11-10 10:28:56,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:28:56,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:28:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:28:57,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:28:57,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:28:57,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618475456] [2024-11-10 10:28:57,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618475456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:28:57,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:28:57,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:28:57,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385926539] [2024-11-10 10:28:57,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:28:57,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:28:57,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:28:57,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:28:57,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:28:57,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:28:57,275 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 54 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:28:57,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:28:57,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:28:57,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:28:57,916 INFO L124 PetriNetUnfolderBase]: 3350/4744 cut-off events. [2024-11-10 10:28:57,916 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-10 10:28:57,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9361 conditions, 4744 events. 3350/4744 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 23157 event pairs, 1507 based on Foata normal form. 1/3829 useless extension candidates. Maximal degree in co-relation 9358. Up to 3118 conditions per place. [2024-11-10 10:28:57,938 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 87 selfloop transitions, 5 changer transitions 3/108 dead transitions. [2024-11-10 10:28:57,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 108 transitions, 424 flow [2024-11-10 10:28:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:28:57,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:28:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-10 10:28:57,941 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-10 10:28:57,941 INFO L175 Difference]: Start difference. First operand has 47 places, 54 transitions, 114 flow. Second operand 5 states and 176 transitions. [2024-11-10 10:28:57,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 108 transitions, 424 flow [2024-11-10 10:28:57,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 108 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:28:57,945 INFO L231 Difference]: Finished difference. Result has 54 places, 58 transitions, 153 flow [2024-11-10 10:28:57,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=54, PETRI_TRANSITIONS=58} [2024-11-10 10:28:57,947 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-11-10 10:28:57,947 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 58 transitions, 153 flow [2024-11-10 10:28:57,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:28:57,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:28:57,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:28:57,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:28:57,949 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:28:57,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:28:57,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2046522409, now seen corresponding path program 2 times [2024-11-10 10:28:57,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:28:57,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408873754] [2024-11-10 10:28:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:28:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:28:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:28:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:28:58,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:28:58,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408873754] [2024-11-10 10:28:58,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408873754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:28:58,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:28:58,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:28:58,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206670137] [2024-11-10 10:28:58,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:28:58,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:28:58,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:28:58,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:28:58,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:28:58,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:28:58,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 58 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:28:58,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:28:58,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:28:58,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:28:59,016 INFO L124 PetriNetUnfolderBase]: 4538/6636 cut-off events. [2024-11-10 10:28:59,017 INFO L125 PetriNetUnfolderBase]: For 1336/1336 co-relation queries the response was YES. [2024-11-10 10:28:59,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14379 conditions, 6636 events. 4538/6636 cut-off events. For 1336/1336 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 36903 event pairs, 2061 based on Foata normal form. 1/6013 useless extension candidates. Maximal degree in co-relation 14372. Up to 3964 conditions per place. [2024-11-10 10:28:59,056 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 87 selfloop transitions, 15 changer transitions 1/116 dead transitions. [2024-11-10 10:28:59,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 116 transitions, 511 flow [2024-11-10 10:28:59,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:28:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:28:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 180 transitions. [2024-11-10 10:28:59,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5625 [2024-11-10 10:28:59,059 INFO L175 Difference]: Start difference. First operand has 54 places, 58 transitions, 153 flow. Second operand 5 states and 180 transitions. [2024-11-10 10:28:59,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 116 transitions, 511 flow [2024-11-10 10:28:59,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 116 transitions, 502 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-10 10:28:59,080 INFO L231 Difference]: Finished difference. Result has 60 places, 68 transitions, 264 flow [2024-11-10 10:28:59,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=264, PETRI_PLACES=60, PETRI_TRANSITIONS=68} [2024-11-10 10:28:59,081 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 8 predicate places. [2024-11-10 10:28:59,081 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 68 transitions, 264 flow [2024-11-10 10:28:59,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:28:59,082 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:28:59,082 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:28:59,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:28:59,082 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:28:59,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:28:59,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1734174571, now seen corresponding path program 3 times [2024-11-10 10:28:59,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:28:59,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204692671] [2024-11-10 10:28:59,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:28:59,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:28:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:28:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:28:59,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:28:59,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204692671] [2024-11-10 10:28:59,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204692671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:28:59,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:28:59,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:28:59,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491707117] [2024-11-10 10:28:59,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:28:59,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:28:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:28:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:28:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:28:59,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:28:59,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 68 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:28:59,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:28:59,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:28:59,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:00,200 INFO L124 PetriNetUnfolderBase]: 5170/7582 cut-off events. [2024-11-10 10:29:00,200 INFO L125 PetriNetUnfolderBase]: For 6414/6538 co-relation queries the response was YES. [2024-11-10 10:29:00,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19416 conditions, 7582 events. 5170/7582 cut-off events. For 6414/6538 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 43629 event pairs, 2264 based on Foata normal form. 13/7065 useless extension candidates. Maximal degree in co-relation 19406. Up to 4470 conditions per place. [2024-11-10 10:29:00,246 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 100 selfloop transitions, 19 changer transitions 1/133 dead transitions. [2024-11-10 10:29:00,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 133 transitions, 736 flow [2024-11-10 10:29:00,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:00,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-11-10 10:29:00,248 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.56875 [2024-11-10 10:29:00,249 INFO L175 Difference]: Start difference. First operand has 60 places, 68 transitions, 264 flow. Second operand 5 states and 182 transitions. [2024-11-10 10:29:00,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 133 transitions, 736 flow [2024-11-10 10:29:00,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 133 transitions, 717 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:00,282 INFO L231 Difference]: Finished difference. Result has 66 places, 82 transitions, 444 flow [2024-11-10 10:29:00,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=444, PETRI_PLACES=66, PETRI_TRANSITIONS=82} [2024-11-10 10:29:00,283 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 14 predicate places. [2024-11-10 10:29:00,283 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 82 transitions, 444 flow [2024-11-10 10:29:00,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:00,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:00,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:00,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:29:00,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:00,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:00,285 INFO L85 PathProgramCache]: Analyzing trace with hash 835025455, now seen corresponding path program 4 times [2024-11-10 10:29:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:00,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192444634] [2024-11-10 10:29:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192444634] [2024-11-10 10:29:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192444634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107739247] [2024-11-10 10:29:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:00,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:00,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:00,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 82 transitions, 444 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:00,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:00,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:00,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:01,597 INFO L124 PetriNetUnfolderBase]: 5977/8822 cut-off events. [2024-11-10 10:29:01,597 INFO L125 PetriNetUnfolderBase]: For 13491/13721 co-relation queries the response was YES. [2024-11-10 10:29:01,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24887 conditions, 8822 events. 5977/8822 cut-off events. For 13491/13721 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 52491 event pairs, 3193 based on Foata normal form. 9/8457 useless extension candidates. Maximal degree in co-relation 24874. Up to 6289 conditions per place. [2024-11-10 10:29:01,647 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 110 selfloop transitions, 9 changer transitions 7/139 dead transitions. [2024-11-10 10:29:01,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 139 transitions, 918 flow [2024-11-10 10:29:01,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:01,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-11-10 10:29:01,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-11-10 10:29:01,649 INFO L175 Difference]: Start difference. First operand has 66 places, 82 transitions, 444 flow. Second operand 5 states and 170 transitions. [2024-11-10 10:29:01,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 139 transitions, 918 flow [2024-11-10 10:29:01,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 139 transitions, 893 flow, removed 10 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:01,703 INFO L231 Difference]: Finished difference. Result has 72 places, 87 transitions, 498 flow [2024-11-10 10:29:01,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=498, PETRI_PLACES=72, PETRI_TRANSITIONS=87} [2024-11-10 10:29:01,705 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 20 predicate places. [2024-11-10 10:29:01,706 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 87 transitions, 498 flow [2024-11-10 10:29:01,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:01,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:01,706 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:01,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:29:01,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:01,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:01,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1146569751, now seen corresponding path program 5 times [2024-11-10 10:29:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:01,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842757547] [2024-11-10 10:29:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:01,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:01,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842757547] [2024-11-10 10:29:01,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842757547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:01,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:01,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:01,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725042967] [2024-11-10 10:29:01,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:01,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:01,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:01,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:01,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:01,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:01,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 87 transitions, 498 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:01,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:01,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:01,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:02,937 INFO L124 PetriNetUnfolderBase]: 5943/8724 cut-off events. [2024-11-10 10:29:02,938 INFO L125 PetriNetUnfolderBase]: For 15130/15358 co-relation queries the response was YES. [2024-11-10 10:29:02,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25378 conditions, 8724 events. 5943/8724 cut-off events. For 15130/15358 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 51729 event pairs, 3026 based on Foata normal form. 25/8588 useless extension candidates. Maximal degree in co-relation 25362. Up to 5597 conditions per place. [2024-11-10 10:29:02,994 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 111 selfloop transitions, 10 changer transitions 3/137 dead transitions. [2024-11-10 10:29:02,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 137 transitions, 937 flow [2024-11-10 10:29:02,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:02,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-10 10:29:02,996 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54375 [2024-11-10 10:29:02,996 INFO L175 Difference]: Start difference. First operand has 72 places, 87 transitions, 498 flow. Second operand 5 states and 174 transitions. [2024-11-10 10:29:02,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 137 transitions, 937 flow [2024-11-10 10:29:03,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 137 transitions, 911 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:03,041 INFO L231 Difference]: Finished difference. Result has 77 places, 87 transitions, 510 flow [2024-11-10 10:29:03,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=77, PETRI_TRANSITIONS=87} [2024-11-10 10:29:03,042 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 25 predicate places. [2024-11-10 10:29:03,042 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 87 transitions, 510 flow [2024-11-10 10:29:03,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:03,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:03,043 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:03,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:29:03,043 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:03,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:03,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1971063181, now seen corresponding path program 6 times [2024-11-10 10:29:03,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:03,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602147726] [2024-11-10 10:29:03,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:03,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:03,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:03,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602147726] [2024-11-10 10:29:03,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602147726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:03,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:03,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:03,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281128547] [2024-11-10 10:29:03,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:03,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:03,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:03,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:03,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:03,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:03,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 87 transitions, 510 flow. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:03,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:03,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:03,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:04,172 INFO L124 PetriNetUnfolderBase]: 6283/9289 cut-off events. [2024-11-10 10:29:04,172 INFO L125 PetriNetUnfolderBase]: For 17882/18002 co-relation queries the response was YES. [2024-11-10 10:29:04,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27309 conditions, 9289 events. 6283/9289 cut-off events. For 17882/18002 co-relation queries the response was YES. Maximal size of possible extension queue 589. Compared 56127 event pairs, 2144 based on Foata normal form. 18/9244 useless extension candidates. Maximal degree in co-relation 27291. Up to 4286 conditions per place. [2024-11-10 10:29:04,243 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 97 selfloop transitions, 35 changer transitions 2/147 dead transitions. [2024-11-10 10:29:04,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 147 transitions, 1034 flow [2024-11-10 10:29:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-11-10 10:29:04,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.559375 [2024-11-10 10:29:04,246 INFO L175 Difference]: Start difference. First operand has 77 places, 87 transitions, 510 flow. Second operand 5 states and 179 transitions. [2024-11-10 10:29:04,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 147 transitions, 1034 flow [2024-11-10 10:29:04,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 147 transitions, 1009 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-10 10:29:04,293 INFO L231 Difference]: Finished difference. Result has 81 places, 99 transitions, 716 flow [2024-11-10 10:29:04,293 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=716, PETRI_PLACES=81, PETRI_TRANSITIONS=99} [2024-11-10 10:29:04,294 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 29 predicate places. [2024-11-10 10:29:04,294 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 99 transitions, 716 flow [2024-11-10 10:29:04,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2024-11-10 10:29:04,295 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:04,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:04,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:29:04,295 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:04,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash 210382668, now seen corresponding path program 1 times [2024-11-10 10:29:04,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:04,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245615753] [2024-11-10 10:29:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:04,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:04,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:04,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:04,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245615753] [2024-11-10 10:29:04,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245615753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:04,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:04,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:29:04,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412793998] [2024-11-10 10:29:04,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:04,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:29:04,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:04,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:29:04,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:29:04,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 64 [2024-11-10 10:29:04,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 99 transitions, 716 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2024-11-10 10:29:04,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:04,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 64 [2024-11-10 10:29:04,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:05,788 INFO L124 PetriNetUnfolderBase]: 10104/14474 cut-off events. [2024-11-10 10:29:05,788 INFO L125 PetriNetUnfolderBase]: For 41383/41877 co-relation queries the response was YES. [2024-11-10 10:29:05,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48135 conditions, 14474 events. 10104/14474 cut-off events. For 41383/41877 co-relation queries the response was YES. Maximal size of possible extension queue 849. Compared 88752 event pairs, 3377 based on Foata normal form. 65/14368 useless extension candidates. Maximal degree in co-relation 48116. Up to 6111 conditions per place. [2024-11-10 10:29:05,900 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 148 selfloop transitions, 28 changer transitions 7/193 dead transitions. [2024-11-10 10:29:05,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 193 transitions, 1641 flow [2024-11-10 10:29:05,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:29:05,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 10:29:05,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 232 transitions. [2024-11-10 10:29:05,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4027777777777778 [2024-11-10 10:29:05,903 INFO L175 Difference]: Start difference. First operand has 81 places, 99 transitions, 716 flow. Second operand 9 states and 232 transitions. [2024-11-10 10:29:05,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 193 transitions, 1641 flow [2024-11-10 10:29:06,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 193 transitions, 1607 flow, removed 17 selfloop flow, removed 0 redundant places. [2024-11-10 10:29:06,046 INFO L231 Difference]: Finished difference. Result has 95 places, 116 transitions, 911 flow [2024-11-10 10:29:06,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=911, PETRI_PLACES=95, PETRI_TRANSITIONS=116} [2024-11-10 10:29:06,047 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 43 predicate places. [2024-11-10 10:29:06,047 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 116 transitions, 911 flow [2024-11-10 10:29:06,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2024-11-10 10:29:06,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:06,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:06,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 10:29:06,048 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:06,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:06,049 INFO L85 PathProgramCache]: Analyzing trace with hash 2021298072, now seen corresponding path program 1 times [2024-11-10 10:29:06,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:06,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848605305] [2024-11-10 10:29:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:06,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:06,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:06,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848605305] [2024-11-10 10:29:06,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848605305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:06,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:06,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:29:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181219171] [2024-11-10 10:29:06,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:06,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:29:06,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:06,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:29:06,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:29:06,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 64 [2024-11-10 10:29:06,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 116 transitions, 911 flow. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2024-11-10 10:29:06,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:06,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 64 [2024-11-10 10:29:06,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:08,111 INFO L124 PetriNetUnfolderBase]: 14604/20681 cut-off events. [2024-11-10 10:29:08,112 INFO L125 PetriNetUnfolderBase]: For 68337/68855 co-relation queries the response was YES. [2024-11-10 10:29:08,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72470 conditions, 20681 events. 14604/20681 cut-off events. For 68337/68855 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 128131 event pairs, 4905 based on Foata normal form. 33/20526 useless extension candidates. Maximal degree in co-relation 72444. Up to 8011 conditions per place. [2024-11-10 10:29:08,252 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 177 selfloop transitions, 27 changer transitions 38/252 dead transitions. [2024-11-10 10:29:08,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 252 transitions, 2436 flow [2024-11-10 10:29:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:29:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:29:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 216 transitions. [2024-11-10 10:29:08,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715 [2024-11-10 10:29:08,254 INFO L175 Difference]: Start difference. First operand has 95 places, 116 transitions, 911 flow. Second operand 7 states and 216 transitions. [2024-11-10 10:29:08,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 252 transitions, 2436 flow [2024-11-10 10:29:08,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 252 transitions, 2393 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:08,433 INFO L231 Difference]: Finished difference. Result has 105 places, 128 transitions, 1093 flow [2024-11-10 10:29:08,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=889, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1093, PETRI_PLACES=105, PETRI_TRANSITIONS=128} [2024-11-10 10:29:08,436 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 53 predicate places. [2024-11-10 10:29:08,438 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 128 transitions, 1093 flow [2024-11-10 10:29:08,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 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) [2024-11-10 10:29:08,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:08,439 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:08,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 10:29:08,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:08,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:08,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1229305889, now seen corresponding path program 1 times [2024-11-10 10:29:08,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:08,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954429358] [2024-11-10 10:29:08,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:08,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:08,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:08,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:08,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954429358] [2024-11-10 10:29:08,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954429358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:08,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:08,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:08,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142908398] [2024-11-10 10:29:08,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:08,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:08,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:08,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:08,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:08,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:08,563 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 128 transitions, 1093 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:08,563 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:08,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:08,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:10,480 INFO L124 PetriNetUnfolderBase]: 13483/19516 cut-off events. [2024-11-10 10:29:10,480 INFO L125 PetriNetUnfolderBase]: For 65647/65885 co-relation queries the response was YES. [2024-11-10 10:29:10,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69723 conditions, 19516 events. 13483/19516 cut-off events. For 65647/65885 co-relation queries the response was YES. Maximal size of possible extension queue 1037. Compared 122428 event pairs, 4108 based on Foata normal form. 87/19503 useless extension candidates. Maximal degree in co-relation 69692. Up to 8604 conditions per place. [2024-11-10 10:29:10,608 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 165 selfloop transitions, 23 changer transitions 9/212 dead transitions. [2024-11-10 10:29:10,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 212 transitions, 2095 flow [2024-11-10 10:29:10,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:10,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-11-10 10:29:10,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55625 [2024-11-10 10:29:10,611 INFO L175 Difference]: Start difference. First operand has 105 places, 128 transitions, 1093 flow. Second operand 5 states and 178 transitions. [2024-11-10 10:29:10,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 212 transitions, 2095 flow [2024-11-10 10:29:10,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 212 transitions, 2048 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 10:29:10,777 INFO L231 Difference]: Finished difference. Result has 109 places, 140 transitions, 1318 flow [2024-11-10 10:29:10,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1071, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1318, PETRI_PLACES=109, PETRI_TRANSITIONS=140} [2024-11-10 10:29:10,778 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 57 predicate places. [2024-11-10 10:29:10,778 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 140 transitions, 1318 flow [2024-11-10 10:29:10,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:10,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:10,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:10,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 10:29:10,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:10,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:10,780 INFO L85 PathProgramCache]: Analyzing trace with hash -411737577, now seen corresponding path program 2 times [2024-11-10 10:29:10,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:10,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94007118] [2024-11-10 10:29:10,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:10,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:10,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:10,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:10,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94007118] [2024-11-10 10:29:10,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94007118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:10,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:10,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:10,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481758384] [2024-11-10 10:29:10,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:10,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:10,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:10,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:10,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:10,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:10,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 140 transitions, 1318 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:10,924 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:10,924 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:10,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:12,945 INFO L124 PetriNetUnfolderBase]: 13342/19082 cut-off events. [2024-11-10 10:29:12,946 INFO L125 PetriNetUnfolderBase]: For 80879/81419 co-relation queries the response was YES. [2024-11-10 10:29:13,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69823 conditions, 19082 events. 13342/19082 cut-off events. For 80879/81419 co-relation queries the response was YES. Maximal size of possible extension queue 1019. Compared 117786 event pairs, 6891 based on Foata normal form. 81/18896 useless extension candidates. Maximal degree in co-relation 69790. Up to 12893 conditions per place. [2024-11-10 10:29:13,073 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 139 selfloop transitions, 20 changer transitions 16/190 dead transitions. [2024-11-10 10:29:13,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 190 transitions, 1870 flow [2024-11-10 10:29:13,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-11-10 10:29:13,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.546875 [2024-11-10 10:29:13,075 INFO L175 Difference]: Start difference. First operand has 109 places, 140 transitions, 1318 flow. Second operand 5 states and 175 transitions. [2024-11-10 10:29:13,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 190 transitions, 1870 flow [2024-11-10 10:29:13,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 190 transitions, 1853 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:13,244 INFO L231 Difference]: Finished difference. Result has 113 places, 137 transitions, 1301 flow [2024-11-10 10:29:13,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1301, PETRI_PLACES=113, PETRI_TRANSITIONS=137} [2024-11-10 10:29:13,245 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 61 predicate places. [2024-11-10 10:29:13,246 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 137 transitions, 1301 flow [2024-11-10 10:29:13,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:13,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:13,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:13,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 10:29:13,247 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:13,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:13,247 INFO L85 PathProgramCache]: Analyzing trace with hash -265779581, now seen corresponding path program 3 times [2024-11-10 10:29:13,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:13,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311673015] [2024-11-10 10:29:13,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:13,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:13,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:13,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311673015] [2024-11-10 10:29:13,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311673015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:13,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:13,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:13,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029038264] [2024-11-10 10:29:13,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:13,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:13,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:13,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:13,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:13,384 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:13,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 137 transitions, 1301 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:13,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:13,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:13,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:15,321 INFO L124 PetriNetUnfolderBase]: 13385/19131 cut-off events. [2024-11-10 10:29:15,321 INFO L125 PetriNetUnfolderBase]: For 83362/83908 co-relation queries the response was YES. [2024-11-10 10:29:15,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70495 conditions, 19131 events. 13385/19131 cut-off events. For 83362/83908 co-relation queries the response was YES. Maximal size of possible extension queue 1010. Compared 117821 event pairs, 6706 based on Foata normal form. 105/18980 useless extension candidates. Maximal degree in co-relation 70461. Up to 12893 conditions per place. [2024-11-10 10:29:15,464 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 151 selfloop transitions, 26 changer transitions 9/201 dead transitions. [2024-11-10 10:29:15,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 201 transitions, 2008 flow [2024-11-10 10:29:15,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:15,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2024-11-10 10:29:15,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.56875 [2024-11-10 10:29:15,466 INFO L175 Difference]: Start difference. First operand has 113 places, 137 transitions, 1301 flow. Second operand 5 states and 182 transitions. [2024-11-10 10:29:15,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 201 transitions, 2008 flow [2024-11-10 10:29:15,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 201 transitions, 1960 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-10 10:29:15,644 INFO L231 Difference]: Finished difference. Result has 114 places, 141 transitions, 1335 flow [2024-11-10 10:29:15,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1335, PETRI_PLACES=114, PETRI_TRANSITIONS=141} [2024-11-10 10:29:15,645 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 62 predicate places. [2024-11-10 10:29:15,645 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 141 transitions, 1335 flow [2024-11-10 10:29:15,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:15,645 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:15,645 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:15,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 10:29:15,646 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:15,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1178623087, now seen corresponding path program 4 times [2024-11-10 10:29:15,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:15,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577723622] [2024-11-10 10:29:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:15,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:15,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:15,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:15,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577723622] [2024-11-10 10:29:15,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577723622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:15,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:15,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:15,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782706322] [2024-11-10 10:29:15,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:15,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:15,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:15,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:15,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:15,826 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:15,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 141 transitions, 1335 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:15,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:15,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:15,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:17,824 INFO L124 PetriNetUnfolderBase]: 13187/18805 cut-off events. [2024-11-10 10:29:17,825 INFO L125 PetriNetUnfolderBase]: For 88408/88908 co-relation queries the response was YES. [2024-11-10 10:29:17,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70657 conditions, 18805 events. 13187/18805 cut-off events. For 88408/88908 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 115302 event pairs, 7148 based on Foata normal form. 45/18619 useless extension candidates. Maximal degree in co-relation 70622. Up to 14470 conditions per place. [2024-11-10 10:29:17,913 INFO L140 encePairwiseOnDemand]: 60/64 looper letters, 148 selfloop transitions, 10 changer transitions 18/191 dead transitions. [2024-11-10 10:29:17,913 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 191 transitions, 1898 flow [2024-11-10 10:29:17,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:17,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-11-10 10:29:17,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.540625 [2024-11-10 10:29:17,915 INFO L175 Difference]: Start difference. First operand has 114 places, 141 transitions, 1335 flow. Second operand 5 states and 173 transitions. [2024-11-10 10:29:17,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 191 transitions, 1898 flow [2024-11-10 10:29:18,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 191 transitions, 1856 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-11-10 10:29:18,114 INFO L231 Difference]: Finished difference. Result has 115 places, 136 transitions, 1229 flow [2024-11-10 10:29:18,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1297, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1229, PETRI_PLACES=115, PETRI_TRANSITIONS=136} [2024-11-10 10:29:18,115 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 63 predicate places. [2024-11-10 10:29:18,115 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 136 transitions, 1229 flow [2024-11-10 10:29:18,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:18,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:18,116 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:18,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 10:29:18,116 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:18,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash -2038054731, now seen corresponding path program 5 times [2024-11-10 10:29:18,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:18,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394553834] [2024-11-10 10:29:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:18,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:18,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:18,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:18,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394553834] [2024-11-10 10:29:18,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394553834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:18,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:18,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:18,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468045678] [2024-11-10 10:29:18,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:18,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:18,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:18,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:18,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:18,213 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:18,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 136 transitions, 1229 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:18,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:18,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:18,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:20,306 INFO L124 PetriNetUnfolderBase]: 13582/19678 cut-off events. [2024-11-10 10:29:20,307 INFO L125 PetriNetUnfolderBase]: For 85766/85983 co-relation queries the response was YES. [2024-11-10 10:29:20,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73060 conditions, 19678 events. 13582/19678 cut-off events. For 85766/85983 co-relation queries the response was YES. Maximal size of possible extension queue 1056. Compared 124239 event pairs, 4108 based on Foata normal form. 25/19626 useless extension candidates. Maximal degree in co-relation 73025. Up to 9493 conditions per place. [2024-11-10 10:29:20,431 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 174 selfloop transitions, 9 changer transitions 10/208 dead transitions. [2024-11-10 10:29:20,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 208 transitions, 2064 flow [2024-11-10 10:29:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-11-10 10:29:20,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55625 [2024-11-10 10:29:20,433 INFO L175 Difference]: Start difference. First operand has 115 places, 136 transitions, 1229 flow. Second operand 5 states and 178 transitions. [2024-11-10 10:29:20,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 208 transitions, 2064 flow [2024-11-10 10:29:20,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 208 transitions, 2030 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-10 10:29:20,634 INFO L231 Difference]: Finished difference. Result has 117 places, 140 transitions, 1260 flow [2024-11-10 10:29:20,634 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1205, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1260, PETRI_PLACES=117, PETRI_TRANSITIONS=140} [2024-11-10 10:29:20,634 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 65 predicate places. [2024-11-10 10:29:20,635 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 140 transitions, 1260 flow [2024-11-10 10:29:20,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:20,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:20,635 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:20,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-10 10:29:20,636 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:20,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash -667280291, now seen corresponding path program 6 times [2024-11-10 10:29:20,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:20,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007606344] [2024-11-10 10:29:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:20,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:20,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:20,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007606344] [2024-11-10 10:29:20,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007606344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:20,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:20,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:20,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513741804] [2024-11-10 10:29:20,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:20,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:20,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:20,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:20,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:20,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:20,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 140 transitions, 1260 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:20,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:20,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:20,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:22,861 INFO L124 PetriNetUnfolderBase]: 13567/19407 cut-off events. [2024-11-10 10:29:22,861 INFO L125 PetriNetUnfolderBase]: For 94667/95135 co-relation queries the response was YES. [2024-11-10 10:29:22,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74236 conditions, 19407 events. 13567/19407 cut-off events. For 94667/95135 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 120148 event pairs, 7153 based on Foata normal form. 55/19236 useless extension candidates. Maximal degree in co-relation 74199. Up to 14470 conditions per place. [2024-11-10 10:29:23,000 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 162 selfloop transitions, 15 changer transitions 10/202 dead transitions. [2024-11-10 10:29:23,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 202 transitions, 1946 flow [2024-11-10 10:29:23,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:23,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-11-10 10:29:23,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.559375 [2024-11-10 10:29:23,002 INFO L175 Difference]: Start difference. First operand has 117 places, 140 transitions, 1260 flow. Second operand 5 states and 179 transitions. [2024-11-10 10:29:23,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 202 transitions, 1946 flow [2024-11-10 10:29:23,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 202 transitions, 1925 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:23,245 INFO L231 Difference]: Finished difference. Result has 122 places, 142 transitions, 1258 flow [2024-11-10 10:29:23,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1243, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1258, PETRI_PLACES=122, PETRI_TRANSITIONS=142} [2024-11-10 10:29:23,246 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 70 predicate places. [2024-11-10 10:29:23,246 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 142 transitions, 1258 flow [2024-11-10 10:29:23,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 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) [2024-11-10 10:29:23,246 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:23,246 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:23,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-10 10:29:23,247 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:23,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash -304658884, now seen corresponding path program 1 times [2024-11-10 10:29:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:23,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356282559] [2024-11-10 10:29:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:23,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:23,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:23,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356282559] [2024-11-10 10:29:23,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356282559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:23,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:23,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:29:23,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765467812] [2024-11-10 10:29:23,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:23,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:23,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:23,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:23,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:23,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 64 [2024-11-10 10:29:23,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 142 transitions, 1258 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:23,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:23,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 64 [2024-11-10 10:29:23,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:25,733 INFO L124 PetriNetUnfolderBase]: 14685/22063 cut-off events. [2024-11-10 10:29:25,733 INFO L125 PetriNetUnfolderBase]: For 102882/103413 co-relation queries the response was YES. [2024-11-10 10:29:25,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82294 conditions, 22063 events. 14685/22063 cut-off events. For 102882/103413 co-relation queries the response was YES. Maximal size of possible extension queue 1212. Compared 152213 event pairs, 9288 based on Foata normal form. 400/22283 useless extension candidates. Maximal degree in co-relation 82255. Up to 13074 conditions per place. [2024-11-10 10:29:25,889 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 190 selfloop transitions, 7 changer transitions 51/258 dead transitions. [2024-11-10 10:29:25,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 258 transitions, 2737 flow [2024-11-10 10:29:25,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:29:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:29:25,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2024-11-10 10:29:25,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4921875 [2024-11-10 10:29:25,890 INFO L175 Difference]: Start difference. First operand has 122 places, 142 transitions, 1258 flow. Second operand 6 states and 189 transitions. [2024-11-10 10:29:25,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 258 transitions, 2737 flow [2024-11-10 10:29:26,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 258 transitions, 2671 flow, removed 24 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:26,074 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 1192 flow [2024-11-10 10:29:26,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1192, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2024-11-10 10:29:26,075 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 74 predicate places. [2024-11-10 10:29:26,075 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 1192 flow [2024-11-10 10:29:26,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:26,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:26,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:26,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-10 10:29:26,076 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:26,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash 429249565, now seen corresponding path program 1 times [2024-11-10 10:29:26,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:26,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832621639] [2024-11-10 10:29:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:26,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:26,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:29:26,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:26,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832621639] [2024-11-10 10:29:26,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832621639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:26,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:26,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514353612] [2024-11-10 10:29:26,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:26,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:26,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:26,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:26,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:26,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 64 [2024-11-10 10:29:26,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 1192 flow. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:26,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:26,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 64 [2024-11-10 10:29:26,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:28,460 INFO L124 PetriNetUnfolderBase]: 13357/20782 cut-off events. [2024-11-10 10:29:28,460 INFO L125 PetriNetUnfolderBase]: For 88985/89534 co-relation queries the response was YES. [2024-11-10 10:29:28,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76177 conditions, 20782 events. 13357/20782 cut-off events. For 88985/89534 co-relation queries the response was YES. Maximal size of possible extension queue 1146. Compared 149267 event pairs, 8827 based on Foata normal form. 545/21123 useless extension candidates. Maximal degree in co-relation 76136. Up to 12792 conditions per place. [2024-11-10 10:29:28,634 INFO L140 encePairwiseOnDemand]: 58/64 looper letters, 165 selfloop transitions, 6 changer transitions 63/244 dead transitions. [2024-11-10 10:29:28,634 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 244 transitions, 2661 flow [2024-11-10 10:29:28,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:29:28,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:29:28,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 179 transitions. [2024-11-10 10:29:28,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4661458333333333 [2024-11-10 10:29:28,635 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 1192 flow. Second operand 6 states and 179 transitions. [2024-11-10 10:29:28,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 244 transitions, 2661 flow [2024-11-10 10:29:28,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 244 transitions, 2609 flow, removed 9 selfloop flow, removed 6 redundant places. [2024-11-10 10:29:28,897 INFO L231 Difference]: Finished difference. Result has 126 places, 128 transitions, 1107 flow [2024-11-10 10:29:28,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1107, PETRI_PLACES=126, PETRI_TRANSITIONS=128} [2024-11-10 10:29:28,898 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 74 predicate places. [2024-11-10 10:29:28,898 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 128 transitions, 1107 flow [2024-11-10 10:29:28,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:28,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:28,899 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:28,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 10:29:28,899 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:28,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:28,899 INFO L85 PathProgramCache]: Analyzing trace with hash 905539689, now seen corresponding path program 1 times [2024-11-10 10:29:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:28,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336892686] [2024-11-10 10:29:28,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:29,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:29:29,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:29,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336892686] [2024-11-10 10:29:29,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336892686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:29,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:29,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:29,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190929619] [2024-11-10 10:29:29,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:29,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:29,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:29,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:29,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:29,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:29,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 128 transitions, 1107 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:29,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:29,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:29,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:31,359 INFO L124 PetriNetUnfolderBase]: 12992/19817 cut-off events. [2024-11-10 10:29:31,359 INFO L125 PetriNetUnfolderBase]: For 85458/85866 co-relation queries the response was YES. [2024-11-10 10:29:31,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72109 conditions, 19817 events. 12992/19817 cut-off events. For 85458/85866 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 138074 event pairs, 4781 based on Foata normal form. 62/19721 useless extension candidates. Maximal degree in co-relation 72068. Up to 8896 conditions per place. [2024-11-10 10:29:31,505 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 171 selfloop transitions, 15 changer transitions 3/204 dead transitions. [2024-11-10 10:29:31,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 204 transitions, 1973 flow [2024-11-10 10:29:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:31,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-11-10 10:29:31,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-11-10 10:29:31,506 INFO L175 Difference]: Start difference. First operand has 126 places, 128 transitions, 1107 flow. Second operand 5 states and 184 transitions. [2024-11-10 10:29:31,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 204 transitions, 1973 flow [2024-11-10 10:29:31,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 204 transitions, 1943 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-10 10:29:31,770 INFO L231 Difference]: Finished difference. Result has 127 places, 137 transitions, 1283 flow [2024-11-10 10:29:31,770 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1283, PETRI_PLACES=127, PETRI_TRANSITIONS=137} [2024-11-10 10:29:31,770 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 75 predicate places. [2024-11-10 10:29:31,771 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 137 transitions, 1283 flow [2024-11-10 10:29:31,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:31,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:31,771 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:31,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 10:29:31,771 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:31,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:31,771 INFO L85 PathProgramCache]: Analyzing trace with hash -2026871583, now seen corresponding path program 2 times [2024-11-10 10:29:31,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:31,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483649693] [2024-11-10 10:29:31,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:31,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:31,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:29:31,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:31,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483649693] [2024-11-10 10:29:31,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483649693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:31,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:31,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:31,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955645842] [2024-11-10 10:29:31,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:31,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:31,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:31,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:31,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:31,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:31,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 137 transitions, 1283 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:31,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:31,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:31,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:34,162 INFO L124 PetriNetUnfolderBase]: 13022/19659 cut-off events. [2024-11-10 10:29:34,162 INFO L125 PetriNetUnfolderBase]: For 92027/92340 co-relation queries the response was YES. [2024-11-10 10:29:34,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72088 conditions, 19659 events. 13022/19659 cut-off events. For 92027/92340 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 134707 event pairs, 6191 based on Foata normal form. 48/19468 useless extension candidates. Maximal degree in co-relation 72046. Up to 11622 conditions per place. [2024-11-10 10:29:34,353 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 162 selfloop transitions, 21 changer transitions 3/201 dead transitions. [2024-11-10 10:29:34,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 201 transitions, 2010 flow [2024-11-10 10:29:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:34,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:34,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-11-10 10:29:34,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.565625 [2024-11-10 10:29:34,355 INFO L175 Difference]: Start difference. First operand has 127 places, 137 transitions, 1283 flow. Second operand 5 states and 181 transitions. [2024-11-10 10:29:34,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 201 transitions, 2010 flow [2024-11-10 10:29:34,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 201 transitions, 1985 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:34,581 INFO L231 Difference]: Finished difference. Result has 133 places, 141 transitions, 1401 flow [2024-11-10 10:29:34,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1401, PETRI_PLACES=133, PETRI_TRANSITIONS=141} [2024-11-10 10:29:34,582 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 81 predicate places. [2024-11-10 10:29:34,582 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 141 transitions, 1401 flow [2024-11-10 10:29:34,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:34,583 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:34,583 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:34,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 10:29:34,583 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:34,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:34,584 INFO L85 PathProgramCache]: Analyzing trace with hash 963323777, now seen corresponding path program 3 times [2024-11-10 10:29:34,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:34,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997047793] [2024-11-10 10:29:34,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:34,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:34,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:29:34,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:34,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997047793] [2024-11-10 10:29:34,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997047793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:34,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:34,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:34,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260476496] [2024-11-10 10:29:34,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:34,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:34,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:34,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:34,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:34,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:34,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 141 transitions, 1401 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:34,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:34,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:34,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:37,354 INFO L124 PetriNetUnfolderBase]: 15967/24560 cut-off events. [2024-11-10 10:29:37,354 INFO L125 PetriNetUnfolderBase]: For 123487/123885 co-relation queries the response was YES. [2024-11-10 10:29:37,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90037 conditions, 24560 events. 15967/24560 cut-off events. For 123487/123885 co-relation queries the response was YES. Maximal size of possible extension queue 1401. Compared 178271 event pairs, 3485 based on Foata normal form. 116/24532 useless extension candidates. Maximal degree in co-relation 89992. Up to 7585 conditions per place. [2024-11-10 10:29:37,849 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 200 selfloop transitions, 44 changer transitions 4/263 dead transitions. [2024-11-10 10:29:37,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 263 transitions, 2818 flow [2024-11-10 10:29:37,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:29:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:29:37,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 231 transitions. [2024-11-10 10:29:37,850 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6015625 [2024-11-10 10:29:37,850 INFO L175 Difference]: Start difference. First operand has 133 places, 141 transitions, 1401 flow. Second operand 6 states and 231 transitions. [2024-11-10 10:29:37,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 263 transitions, 2818 flow [2024-11-10 10:29:38,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 263 transitions, 2788 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:38,178 INFO L231 Difference]: Finished difference. Result has 141 places, 164 transitions, 1853 flow [2024-11-10 10:29:38,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1381, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1853, PETRI_PLACES=141, PETRI_TRANSITIONS=164} [2024-11-10 10:29:38,178 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 89 predicate places. [2024-11-10 10:29:38,178 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 164 transitions, 1853 flow [2024-11-10 10:29:38,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:38,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:38,179 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:38,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-10 10:29:38,179 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:38,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:38,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1613339921, now seen corresponding path program 4 times [2024-11-10 10:29:38,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:38,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44470334] [2024-11-10 10:29:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:38,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:29:38,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:38,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44470334] [2024-11-10 10:29:38,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44470334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:38,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:38,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:38,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262571660] [2024-11-10 10:29:38,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:38,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:38,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:38,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:38,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:38,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:38,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 164 transitions, 1853 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:38,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:38,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:38,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:41,140 INFO L124 PetriNetUnfolderBase]: 16035/24657 cut-off events. [2024-11-10 10:29:41,140 INFO L125 PetriNetUnfolderBase]: For 153125/153537 co-relation queries the response was YES. [2024-11-10 10:29:41,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95947 conditions, 24657 events. 16035/24657 cut-off events. For 153125/153537 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 179110 event pairs, 3597 based on Foata normal form. 194/24771 useless extension candidates. Maximal degree in co-relation 95898. Up to 8975 conditions per place. [2024-11-10 10:29:41,331 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 185 selfloop transitions, 70 changer transitions 4/274 dead transitions. [2024-11-10 10:29:41,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 274 transitions, 3245 flow [2024-11-10 10:29:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:29:41,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:29:41,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 227 transitions. [2024-11-10 10:29:41,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5911458333333334 [2024-11-10 10:29:41,333 INFO L175 Difference]: Start difference. First operand has 141 places, 164 transitions, 1853 flow. Second operand 6 states and 227 transitions. [2024-11-10 10:29:41,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 274 transitions, 3245 flow [2024-11-10 10:29:42,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 274 transitions, 3169 flow, removed 36 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:42,021 INFO L231 Difference]: Finished difference. Result has 149 places, 177 transitions, 2275 flow [2024-11-10 10:29:42,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1799, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2275, PETRI_PLACES=149, PETRI_TRANSITIONS=177} [2024-11-10 10:29:42,021 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 97 predicate places. [2024-11-10 10:29:42,022 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 177 transitions, 2275 flow [2024-11-10 10:29:42,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:42,022 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:42,022 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:42,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-10 10:29:42,024 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:42,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:42,025 INFO L85 PathProgramCache]: Analyzing trace with hash 789884295, now seen corresponding path program 5 times [2024-11-10 10:29:42,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:42,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009182106] [2024-11-10 10:29:42,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:42,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:29:42,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:42,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009182106] [2024-11-10 10:29:42,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009182106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:42,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:42,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:42,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292778790] [2024-11-10 10:29:42,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:42,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:42,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:42,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:42,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 177 transitions, 2275 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:42,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:42,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:42,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:29:45,221 INFO L124 PetriNetUnfolderBase]: 15845/24227 cut-off events. [2024-11-10 10:29:45,222 INFO L125 PetriNetUnfolderBase]: For 174867/175345 co-relation queries the response was YES. [2024-11-10 10:29:45,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98245 conditions, 24227 events. 15845/24227 cut-off events. For 174867/175345 co-relation queries the response was YES. Maximal size of possible extension queue 1383. Compared 174545 event pairs, 7930 based on Foata normal form. 156/24127 useless extension candidates. Maximal degree in co-relation 98193. Up to 15829 conditions per place. [2024-11-10 10:29:45,401 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 177 selfloop transitions, 28 changer transitions 7/227 dead transitions. [2024-11-10 10:29:45,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 227 transitions, 2944 flow [2024-11-10 10:29:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:29:45,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:29:45,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-10 10:29:45,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55 [2024-11-10 10:29:45,403 INFO L175 Difference]: Start difference. First operand has 149 places, 177 transitions, 2275 flow. Second operand 5 states and 176 transitions. [2024-11-10 10:29:45,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 227 transitions, 2944 flow [2024-11-10 10:29:46,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 227 transitions, 2884 flow, removed 28 selfloop flow, removed 1 redundant places. [2024-11-10 10:29:46,174 INFO L231 Difference]: Finished difference. Result has 153 places, 173 transitions, 2218 flow [2024-11-10 10:29:46,174 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=2217, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2218, PETRI_PLACES=153, PETRI_TRANSITIONS=173} [2024-11-10 10:29:46,174 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 101 predicate places. [2024-11-10 10:29:46,174 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 173 transitions, 2218 flow [2024-11-10 10:29:46,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:46,175 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:29:46,175 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:29:46,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-10 10:29:46,175 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-10 10:29:46,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:29:46,176 INFO L85 PathProgramCache]: Analyzing trace with hash -437338923, now seen corresponding path program 6 times [2024-11-10 10:29:46,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:29:46,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519863059] [2024-11-10 10:29:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:29:46,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:29:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:29:46,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:29:46,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:29:46,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519863059] [2024-11-10 10:29:46,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519863059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:29:46,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:29:46,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:29:46,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357193160] [2024-11-10 10:29:46,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:29:46,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:29:46,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:29:46,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:29:46,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:29:46,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 64 [2024-11-10 10:29:46,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 173 transitions, 2218 flow. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:29:46,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:29:46,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 64 [2024-11-10 10:29:46,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand