./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:15:54,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:15:55,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:15:55,045 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:15:55,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:15:55,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:15:55,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:15:55,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:15:55,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:15:55,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:15:55,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:15:55,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:15:55,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:15:55,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:15:55,061 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:15:55,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:15:55,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:15:55,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:15:55,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:15:55,062 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:15:55,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:15:55,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:15:55,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:15:55,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:15:55,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:15:55,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:15:55,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:15:55,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:15:55,066 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:15:55,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:15:55,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:15:55,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:15:55,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:15:55,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:15:55,067 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:15:55,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:15:55,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:15:55,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:15:55,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:15:55,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:15:55,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:15:55,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:15:55,069 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63f865703c59d821a54141355edec3427193a51b37abbaa1f96833fe96db9b5e [2024-11-16 19:15:55,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:15:55,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:15:55,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:15:55,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:15:55,287 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:15:55,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2024-11-16 19:15:56,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:15:56,916 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:15:56,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i [2024-11-16 19:15:56,932 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b98c4ef/77381c49de174f8e89741bd21e3d2dcb/FLAG84668777b [2024-11-16 19:15:56,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6b98c4ef/77381c49de174f8e89741bd21e3d2dcb [2024-11-16 19:15:56,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:15:56,946 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:15:56,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:15:56,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:15:56,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:15:56,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:15:56" (1/1) ... [2024-11-16 19:15:56,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a59e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:56, skipping insertion in model container [2024-11-16 19:15:56,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:15:56" (1/1) ... [2024-11-16 19:15:56,998 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:15:57,159 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i[993,1006] [2024-11-16 19:15:57,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:15:57,383 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:15:57,394 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_rmo.oepc.i[993,1006] [2024-11-16 19:15:57,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:15:57,457 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:15:57,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57 WrapperNode [2024-11-16 19:15:57,458 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:15:57,459 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:15:57,459 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:15:57,459 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:15:57,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,478 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,500 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 171 [2024-11-16 19:15:57,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:15:57,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:15:57,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:15:57,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:15:57,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,514 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,530 INFO L175 MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 9 writes are split as follows [0, 9]. [2024-11-16 19:15:57,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,537 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:15:57,546 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:15:57,546 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:15:57,546 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:15:57,546 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (1/1) ... [2024-11-16 19:15:57,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:15:57,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:15:57,584 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) [2024-11-16 19:15:57,586 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 [2024-11-16 19:15:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:15:57,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:15:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:15:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:15:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:15:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:15:57,629 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:15:57,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:15:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:15:57,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:15:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:15:57,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:15:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-16 19:15:57,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-16 19:15:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:15:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:15:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:15:57,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:15:57,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:15:57,632 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:15:57,786 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:15:57,788 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:15:58,177 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:15:58,177 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:15:58,478 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:15:58,479 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:15:58,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:15:58 BoogieIcfgContainer [2024-11-16 19:15:58,479 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:15:58,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:15:58,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:15:58,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:15:58,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:15:56" (1/3) ... [2024-11-16 19:15:58,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dade20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:15:58, skipping insertion in model container [2024-11-16 19:15:58,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:15:57" (2/3) ... [2024-11-16 19:15:58,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dade20b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:15:58, skipping insertion in model container [2024-11-16 19:15:58,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:15:58" (3/3) ... [2024-11-16 19:15:58,488 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_rmo.oepc.i [2024-11-16 19:15:58,501 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:15:58,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 19:15:58,502 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:15:58,565 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:15:58,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-11-16 19:15:58,648 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-11-16 19:15:58,649 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:15:58,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-16 19:15:58,656 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-11-16 19:15:58,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-11-16 19:15:58,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:15:58,679 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;@3fd08f0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:15:58,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-16 19:15:58,689 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:15:58,690 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-16 19:15:58,690 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:15:58,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:15:58,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:15:58,691 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 2 more)] === [2024-11-16 19:15:58,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:15:58,695 INFO L85 PathProgramCache]: Analyzing trace with hash 213406438, now seen corresponding path program 1 times [2024-11-16 19:15:58,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:15:58,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32741876] [2024-11-16 19:15:58,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:15:58,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:15:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:15:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:15:59,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:15:59,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32741876] [2024-11-16 19:15:59,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32741876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:15:59,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:15:59,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:15:59,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309088135] [2024-11-16 19:15:59,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:15:59,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:15:59,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:15:59,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:15:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:15:59,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-16 19:15:59,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:15:59,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:15:59,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-16 19:15:59,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:03,231 INFO L124 PetriNetUnfolderBase]: 27202/36947 cut-off events. [2024-11-16 19:16:03,231 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2024-11-16 19:16:03,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73572 conditions, 36947 events. 27202/36947 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 1228. Compared 222447 event pairs, 3582 based on Foata normal form. 900/37840 useless extension candidates. Maximal degree in co-relation 73560. Up to 26651 conditions per place. [2024-11-16 19:16:03,429 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 54 selfloop transitions, 2 changer transitions 65/126 dead transitions. [2024-11-16 19:16:03,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 126 transitions, 515 flow [2024-11-16 19:16:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:16:03,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:16:03,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 186 transitions. [2024-11-16 19:16:03,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5904761904761905 [2024-11-16 19:16:03,441 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 7 states and 186 transitions. [2024-11-16 19:16:03,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 126 transitions, 515 flow [2024-11-16 19:16:03,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 126 transitions, 508 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:16:03,449 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 100 flow [2024-11-16 19:16:03,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-16 19:16:03,453 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places. [2024-11-16 19:16:03,454 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 100 flow [2024-11-16 19:16:03,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:16:03,454 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:03,454 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:03,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:16:03,455 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 2 more)] === [2024-11-16 19:16:03,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:03,455 INFO L85 PathProgramCache]: Analyzing trace with hash -407552123, now seen corresponding path program 1 times [2024-11-16 19:16:03,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:03,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847585915] [2024-11-16 19:16:03,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:03,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:03,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:03,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:03,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847585915] [2024-11-16 19:16:03,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847585915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:03,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:03,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:16:03,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418560377] [2024-11-16 19:16:03,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:03,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:16:03,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:16:03,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:16:03,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-16 19:16:03,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-16 19:16:03,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:03,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-16 19:16:03,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:07,032 INFO L124 PetriNetUnfolderBase]: 25022/33990 cut-off events. [2024-11-16 19:16:07,033 INFO L125 PetriNetUnfolderBase]: For 5472/5472 co-relation queries the response was YES. [2024-11-16 19:16:07,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74157 conditions, 33990 events. 25022/33990 cut-off events. For 5472/5472 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 197491 event pairs, 3382 based on Foata normal form. 750/34727 useless extension candidates. Maximal degree in co-relation 74142. Up to 24841 conditions per place. [2024-11-16 19:16:07,300 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 50 selfloop transitions, 2 changer transitions 61/118 dead transitions. [2024-11-16 19:16:07,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 118 transitions, 501 flow [2024-11-16 19:16:07,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:16:07,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:16:07,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 178 transitions. [2024-11-16 19:16:07,303 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5650793650793651 [2024-11-16 19:16:07,304 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 100 flow. Second operand 7 states and 178 transitions. [2024-11-16 19:16:07,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 118 transitions, 501 flow [2024-11-16 19:16:08,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 118 transitions, 479 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-16 19:16:08,014 INFO L231 Difference]: Finished difference. Result has 59 places, 38 transitions, 104 flow [2024-11-16 19:16:08,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=104, PETRI_PLACES=59, PETRI_TRANSITIONS=38} [2024-11-16 19:16:08,015 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2024-11-16 19:16:08,015 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 38 transitions, 104 flow [2024-11-16 19:16:08,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2024-11-16 19:16:08,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:08,016 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:08,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:16:08,016 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 2 more)] === [2024-11-16 19:16:08,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash 819491464, now seen corresponding path program 1 times [2024-11-16 19:16:08,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419688823] [2024-11-16 19:16:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:08,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:08,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:08,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419688823] [2024-11-16 19:16:08,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419688823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:08,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234843597] [2024-11-16 19:16:08,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:08,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:08,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:08,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:08,492 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-16 19:16:08,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 38 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-16 19:16:08,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:08,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-16 19:16:08,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:12,848 INFO L124 PetriNetUnfolderBase]: 33044/44486 cut-off events. [2024-11-16 19:16:12,848 INFO L125 PetriNetUnfolderBase]: For 6035/6035 co-relation queries the response was YES. [2024-11-16 19:16:13,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97619 conditions, 44486 events. 33044/44486 cut-off events. For 6035/6035 co-relation queries the response was YES. Maximal size of possible extension queue 1377. Compared 259471 event pairs, 3381 based on Foata normal form. 625/45103 useless extension candidates. Maximal degree in co-relation 97603. Up to 19636 conditions per place. [2024-11-16 19:16:13,117 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 65 selfloop transitions, 3 changer transitions 69/142 dead transitions. [2024-11-16 19:16:13,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 142 transitions, 613 flow [2024-11-16 19:16:13,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:16:13,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:16:13,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 211 transitions. [2024-11-16 19:16:13,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5861111111111111 [2024-11-16 19:16:13,124 INFO L175 Difference]: Start difference. First operand has 59 places, 38 transitions, 104 flow. Second operand 8 states and 211 transitions. [2024-11-16 19:16:13,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 142 transitions, 613 flow [2024-11-16 19:16:13,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 142 transitions, 591 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-16 19:16:13,746 INFO L231 Difference]: Finished difference. Result has 62 places, 38 transitions, 114 flow [2024-11-16 19:16:13,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=114, PETRI_PLACES=62, PETRI_TRANSITIONS=38} [2024-11-16 19:16:13,747 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-16 19:16:13,748 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 38 transitions, 114 flow [2024-11-16 19:16:13,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-16 19:16:13,748 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:13,748 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:13,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:16:13,748 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 2 more)] === [2024-11-16 19:16:13,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:13,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1879713655, now seen corresponding path program 1 times [2024-11-16 19:16:13,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:13,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018581434] [2024-11-16 19:16:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:13,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:15,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:15,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018581434] [2024-11-16 19:16:15,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018581434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:15,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:15,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:16:15,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745649574] [2024-11-16 19:16:15,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:15,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:16:15,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:15,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:16:15,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:16:15,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-16 19:16:15,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 38 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 19:16:15,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:15,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-16 19:16:15,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:17,473 INFO L124 PetriNetUnfolderBase]: 19234/26330 cut-off events. [2024-11-16 19:16:17,473 INFO L125 PetriNetUnfolderBase]: For 9970/9970 co-relation queries the response was YES. [2024-11-16 19:16:17,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60412 conditions, 26330 events. 19234/26330 cut-off events. For 9970/9970 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 144033 event pairs, 4792 based on Foata normal form. 500/26812 useless extension candidates. Maximal degree in co-relation 60394. Up to 20845 conditions per place. [2024-11-16 19:16:17,644 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 48 selfloop transitions, 3 changer transitions 51/107 dead transitions. [2024-11-16 19:16:17,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 107 transitions, 483 flow [2024-11-16 19:16:17,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:16:17,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:16:17,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 167 transitions. [2024-11-16 19:16:17,646 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5301587301587302 [2024-11-16 19:16:17,646 INFO L175 Difference]: Start difference. First operand has 62 places, 38 transitions, 114 flow. Second operand 7 states and 167 transitions. [2024-11-16 19:16:17,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 107 transitions, 483 flow [2024-11-16 19:16:17,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 107 transitions, 446 flow, removed 12 selfloop flow, removed 8 redundant places. [2024-11-16 19:16:17,892 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 129 flow [2024-11-16 19:16:17,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=129, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2024-11-16 19:16:17,893 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2024-11-16 19:16:17,893 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 129 flow [2024-11-16 19:16:17,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2024-11-16 19:16:17,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:17,894 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:17,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:16:17,894 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 2 more)] === [2024-11-16 19:16:17,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:17,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1214249886, now seen corresponding path program 1 times [2024-11-16 19:16:17,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:17,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022905181] [2024-11-16 19:16:17,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:17,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:18,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:18,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022905181] [2024-11-16 19:16:18,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022905181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:18,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:18,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:18,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558830679] [2024-11-16 19:16:18,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:18,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:18,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:18,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:18,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:18,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-16 19:16:18,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 129 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-11-16 19:16:18,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:18,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-16 19:16:18,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:21,255 INFO L124 PetriNetUnfolderBase]: 21408/29168 cut-off events. [2024-11-16 19:16:21,255 INFO L125 PetriNetUnfolderBase]: For 14312/14312 co-relation queries the response was YES. [2024-11-16 19:16:21,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70589 conditions, 29168 events. 21408/29168 cut-off events. For 14312/14312 co-relation queries the response was YES. Maximal size of possible extension queue 784. Compared 160149 event pairs, 14978 based on Foata normal form. 400/29550 useless extension candidates. Maximal degree in co-relation 70572. Up to 22549 conditions per place. [2024-11-16 19:16:21,418 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 48 selfloop transitions, 8 changer transitions 30/91 dead transitions. [2024-11-16 19:16:21,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 91 transitions, 442 flow [2024-11-16 19:16:21,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:16:21,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:16:21,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-11-16 19:16:21,419 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-11-16 19:16:21,419 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 129 flow. Second operand 6 states and 139 transitions. [2024-11-16 19:16:21,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 91 transitions, 442 flow [2024-11-16 19:16:21,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 429 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-16 19:16:21,628 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 178 flow [2024-11-16 19:16:21,628 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=178, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2024-11-16 19:16:21,628 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 11 predicate places. [2024-11-16 19:16:21,628 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 178 flow [2024-11-16 19:16:21,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2024-11-16 19:16:21,629 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:21,629 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:21,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:16:21,629 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 2 more)] === [2024-11-16 19:16:21,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:21,629 INFO L85 PathProgramCache]: Analyzing trace with hash 281854134, now seen corresponding path program 2 times [2024-11-16 19:16:21,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:21,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515833421] [2024-11-16 19:16:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:21,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:22,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:22,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515833421] [2024-11-16 19:16:22,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515833421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:22,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:22,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:16:22,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784036679] [2024-11-16 19:16:22,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:22,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:16:22,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:22,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:16:22,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:16:22,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-16 19:16:22,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 178 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2024-11-16 19:16:22,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:22,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-16 19:16:22,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:26,861 INFO L124 PetriNetUnfolderBase]: 30439/41323 cut-off events. [2024-11-16 19:16:26,862 INFO L125 PetriNetUnfolderBase]: For 29096/29096 co-relation queries the response was YES. [2024-11-16 19:16:27,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107426 conditions, 41323 events. 30439/41323 cut-off events. For 29096/29096 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 233398 event pairs, 8961 based on Foata normal form. 720/42025 useless extension candidates. Maximal degree in co-relation 107407. Up to 16884 conditions per place. [2024-11-16 19:16:27,086 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 68 selfloop transitions, 10 changer transitions 57/140 dead transitions. [2024-11-16 19:16:27,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 140 transitions, 716 flow [2024-11-16 19:16:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 19:16:27,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-16 19:16:27,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 217 transitions. [2024-11-16 19:16:27,088 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5358024691358024 [2024-11-16 19:16:27,088 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 178 flow. Second operand 9 states and 217 transitions. [2024-11-16 19:16:27,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 140 transitions, 716 flow [2024-11-16 19:16:27,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 140 transitions, 681 flow, removed 13 selfloop flow, removed 4 redundant places. [2024-11-16 19:16:27,430 INFO L231 Difference]: Finished difference. Result has 69 places, 45 transitions, 197 flow [2024-11-16 19:16:27,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=197, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2024-11-16 19:16:27,431 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 18 predicate places. [2024-11-16 19:16:27,431 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 197 flow [2024-11-16 19:16:27,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 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) [2024-11-16 19:16:27,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:27,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:27,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:16:27,432 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 2 more)] === [2024-11-16 19:16:27,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:27,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1169212842, now seen corresponding path program 1 times [2024-11-16 19:16:27,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:27,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039044560] [2024-11-16 19:16:27,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:27,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:27,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:27,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039044560] [2024-11-16 19:16:27,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039044560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:27,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:27,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:16:27,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022467221] [2024-11-16 19:16:27,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:27,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:16:27,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:27,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:16:27,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:16:27,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-16 19:16:27,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-16 19:16:27,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:27,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-16 19:16:27,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:31,092 INFO L124 PetriNetUnfolderBase]: 26196/36352 cut-off events. [2024-11-16 19:16:31,093 INFO L125 PetriNetUnfolderBase]: For 32216/32216 co-relation queries the response was YES. [2024-11-16 19:16:31,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96149 conditions, 36352 events. 26196/36352 cut-off events. For 32216/32216 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 214581 event pairs, 3578 based on Foata normal form. 1246/37591 useless extension candidates. Maximal degree in co-relation 96127. Up to 21031 conditions per place. [2024-11-16 19:16:31,300 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 81 selfloop transitions, 6 changer transitions 5/97 dead transitions. [2024-11-16 19:16:31,301 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 97 transitions, 617 flow [2024-11-16 19:16:31,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:16:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:16:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-11-16 19:16:31,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-11-16 19:16:31,302 INFO L175 Difference]: Start difference. First operand has 69 places, 45 transitions, 197 flow. Second operand 4 states and 115 transitions. [2024-11-16 19:16:31,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 97 transitions, 617 flow [2024-11-16 19:16:31,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 97 transitions, 577 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-16 19:16:31,396 INFO L231 Difference]: Finished difference. Result has 64 places, 49 transitions, 219 flow [2024-11-16 19:16:31,396 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=64, PETRI_TRANSITIONS=49} [2024-11-16 19:16:31,396 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 13 predicate places. [2024-11-16 19:16:31,397 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 49 transitions, 219 flow [2024-11-16 19:16:31,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 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) [2024-11-16 19:16:31,397 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:31,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:16:31,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:16:31,397 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 2 more)] === [2024-11-16 19:16:31,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:31,398 INFO L85 PathProgramCache]: Analyzing trace with hash -1674571371, now seen corresponding path program 1 times [2024-11-16 19:16:31,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:31,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819558509] [2024-11-16 19:16:31,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:31,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:31,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:31,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819558509] [2024-11-16 19:16:31,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819558509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:31,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:31,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:16:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482379692] [2024-11-16 19:16:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:31,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:16:31,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:16:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:16:31,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-16 19:16:31,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 49 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-11-16 19:16:31,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:31,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-16 19:16:31,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:16:34,011 INFO L124 PetriNetUnfolderBase]: 18880/26470 cut-off events. [2024-11-16 19:16:34,011 INFO L125 PetriNetUnfolderBase]: For 22501/22501 co-relation queries the response was YES. [2024-11-16 19:16:34,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74968 conditions, 26470 events. 18880/26470 cut-off events. For 22501/22501 co-relation queries the response was YES. Maximal size of possible extension queue 798. Compared 151206 event pairs, 1730 based on Foata normal form. 1086/27549 useless extension candidates. Maximal degree in co-relation 74947. Up to 11785 conditions per place. [2024-11-16 19:16:34,152 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 102 selfloop transitions, 10 changer transitions 9/126 dead transitions. [2024-11-16 19:16:34,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 126 transitions, 803 flow [2024-11-16 19:16:34,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:16:34,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:16:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2024-11-16 19:16:34,155 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6577777777777778 [2024-11-16 19:16:34,156 INFO L175 Difference]: Start difference. First operand has 64 places, 49 transitions, 219 flow. Second operand 5 states and 148 transitions. [2024-11-16 19:16:34,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 126 transitions, 803 flow [2024-11-16 19:16:34,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 126 transitions, 792 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 19:16:34,176 INFO L231 Difference]: Finished difference. Result has 68 places, 53 transitions, 271 flow [2024-11-16 19:16:34,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=68, PETRI_TRANSITIONS=53} [2024-11-16 19:16:34,177 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 17 predicate places. [2024-11-16 19:16:34,177 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 53 transitions, 271 flow [2024-11-16 19:16:34,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-11-16 19:16:34,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:16:34,178 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] [2024-11-16 19:16:34,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:16:34,178 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 2 more)] === [2024-11-16 19:16:34,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:16:34,178 INFO L85 PathProgramCache]: Analyzing trace with hash 484171904, now seen corresponding path program 1 times [2024-11-16 19:16:34,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:16:34,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774440188] [2024-11-16 19:16:34,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:16:34,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:16:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:16:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:16:34,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:16:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774440188] [2024-11-16 19:16:34,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774440188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:16:34,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:16:34,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:16:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918625657] [2024-11-16 19:16:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:16:34,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:16:34,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:16:34,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:16:34,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:16:34,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-16 19:16:34,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 53 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2024-11-16 19:16:34,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:16:34,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-16 19:16:34,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand