./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7724a2de Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 16:22:06,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 16:22:06,385 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 16:22:06,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 16:22:06,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 16:22:06,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 16:22:06,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 16:22:06,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 16:22:06,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 16:22:06,553 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 16:22:06,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 16:22:06,554 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 16:22:06,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 16:22:06,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 16:22:06,555 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 16:22:06,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 16:22:06,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 16:22:06,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 16:22:06,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 16:22:06,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 16:22:06,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 16:22:06,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 16:22:06,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 16:22:06,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 16:22:06,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 16:22:06,562 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 16:22:06,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 16:22:06,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 16:22:06,569 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 16:22:06,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 16:22:06,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 16:22:06,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 16:22:06,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:06,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 16:22:06,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 16:22:06,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 16:22:06,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 16:22:06,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 16:22:06,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 16:22:06,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 16:22:06,573 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 16:22:06,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 16:22:06,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 16:22:06,575 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6df98e8ac4880739ff8c7fa9cf00b32c56a4c64770b2bc9bcfef3d013872fa [2024-06-27 16:22:06,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 16:22:06,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 16:22:06,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 16:22:06,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 16:22:06,875 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 16:22:06,876 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-06-27 16:22:08,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 16:22:08,389 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 16:22:08,390 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-06-27 16:22:08,406 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6619e4f44/02b377e7cad54834832284274d57d8de/FLAG41985945a [2024-06-27 16:22:08,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6619e4f44/02b377e7cad54834832284274d57d8de [2024-06-27 16:22:08,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 16:22:08,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 16:22:08,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 16:22:08,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 16:22:08,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 16:22:08,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:22:08" (1/1) ... [2024-06-27 16:22:08,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d4e13c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:08, skipping insertion in model container [2024-06-27 16:22:08,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 04:22:08" (1/1) ... [2024-06-27 16:22:08,485 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 16:22:08,708 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2024-06-27 16:22:08,979 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:22:08,989 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 16:22:09,001 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i[1038,1051] [2024-06-27 16:22:09,056 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 16:22:09,105 INFO L206 MainTranslator]: Completed translation [2024-06-27 16:22:09,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09 WrapperNode [2024-06-27 16:22:09,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 16:22:09,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 16:22:09,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 16:22:09,108 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 16:22:09,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,186 INFO L138 Inliner]: procedures = 174, calls = 39, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2024-06-27 16:22:09,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 16:22:09,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 16:22:09,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 16:22:09,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 16:22:09,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,204 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,231 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-27 16:22:09,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,239 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 16:22:09,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 16:22:09,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 16:22:09,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 16:22:09,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (1/1) ... [2024-06-27 16:22:09,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 16:22:09,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 16:22:09,317 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) [2024-06-27 16:22:09,344 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 [2024-06-27 16:22:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 16:22:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 16:22:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 16:22:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 16:22:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 16:22:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 16:22:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 16:22:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 16:22:09,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 16:22:09,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 16:22:09,382 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-27 16:22:09,566 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 16:22:09,569 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 16:22:09,894 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 16:22:09,896 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 16:22:10,078 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 16:22:10,078 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 16:22:10,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:10 BoogieIcfgContainer [2024-06-27 16:22:10,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 16:22:10,081 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 16:22:10,081 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 16:22:10,083 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 16:22:10,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 04:22:08" (1/3) ... [2024-06-27 16:22:10,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300956ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:22:10, skipping insertion in model container [2024-06-27 16:22:10,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 04:22:09" (2/3) ... [2024-06-27 16:22:10,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300956ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 04:22:10, skipping insertion in model container [2024-06-27 16:22:10,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:10" (3/3) ... [2024-06-27 16:22:10,086 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi002_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2024-06-27 16:22:10,093 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 16:22:10,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 16:22:10,103 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 16:22:10,103 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 16:22:10,145 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 16:22:10,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 33 transitions, 74 flow [2024-06-27 16:22:10,213 INFO L124 PetriNetUnfolderBase]: 1/31 cut-off events. [2024-06-27 16:22:10,213 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:22:10,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2024-06-27 16:22:10,218 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 33 transitions, 74 flow [2024-06-27 16:22:10,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 31 transitions, 68 flow [2024-06-27 16:22:10,237 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 16:22:10,243 INFO L357 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, mHoare=true, 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;@3e7820f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 16:22:10,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-06-27 16:22:10,249 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 16:22:10,249 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-06-27 16:22:10,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 16:22:10,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:10,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-27 16:22:10,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:10,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:10,256 INFO L85 PathProgramCache]: Analyzing trace with hash -942372534, now seen corresponding path program 1 times [2024-06-27 16:22:10,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:10,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497288802] [2024-06-27 16:22:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:10,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:10,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:10,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497288802] [2024-06-27 16:22:10,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497288802] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:10,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:10,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 16:22:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361888150] [2024-06-27 16:22:10,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:10,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 16:22:10,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:10,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 16:22:10,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 16:22:10,792 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 33 [2024-06-27 16:22:10,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:10,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:10,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 33 [2024-06-27 16:22:10,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:11,067 INFO L124 PetriNetUnfolderBase]: 264/581 cut-off events. [2024-06-27 16:22:11,068 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-27 16:22:11,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 581 events. 264/581 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3134 event pairs, 32 based on Foata normal form. 25/599 useless extension candidates. Maximal degree in co-relation 1037. Up to 373 conditions per place. [2024-06-27 16:22:11,078 INFO L140 encePairwiseOnDemand]: 29/33 looper letters, 24 selfloop transitions, 2 changer transitions 2/39 dead transitions. [2024-06-27 16:22:11,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 39 transitions, 140 flow [2024-06-27 16:22:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 16:22:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 16:22:11,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-06-27 16:22:11,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7070707070707071 [2024-06-27 16:22:11,094 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 68 flow. Second operand 3 states and 70 transitions. [2024-06-27 16:22:11,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 39 transitions, 140 flow [2024-06-27 16:22:11,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 39 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:22:11,100 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 64 flow [2024-06-27 16:22:11,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-06-27 16:22:11,106 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, -1 predicate places. [2024-06-27 16:22:11,106 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 64 flow [2024-06-27 16:22:11,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:11,107 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:11,107 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:11,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 16:22:11,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:11,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:11,109 INFO L85 PathProgramCache]: Analyzing trace with hash 725790871, now seen corresponding path program 1 times [2024-06-27 16:22:11,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:11,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516882692] [2024-06-27 16:22:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:11,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:11,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:11,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:11,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516882692] [2024-06-27 16:22:11,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516882692] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:11,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:11,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:22:11,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078761189] [2024-06-27 16:22:11,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:11,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:22:11,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:11,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:22:11,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:22:11,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:11,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:11,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:11,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:11,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:11,771 INFO L124 PetriNetUnfolderBase]: 426/800 cut-off events. [2024-06-27 16:22:11,772 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-06-27 16:22:11,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 800 events. 426/800 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4189 event pairs, 96 based on Foata normal form. 0/774 useless extension candidates. Maximal degree in co-relation 1568. Up to 358 conditions per place. [2024-06-27 16:22:11,777 INFO L140 encePairwiseOnDemand]: 27/33 looper letters, 24 selfloop transitions, 2 changer transitions 39/73 dead transitions. [2024-06-27 16:22:11,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 73 transitions, 288 flow [2024-06-27 16:22:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:22:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:22:11,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2024-06-27 16:22:11,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5568181818181818 [2024-06-27 16:22:11,783 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 64 flow. Second operand 8 states and 147 transitions. [2024-06-27 16:22:11,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 73 transitions, 288 flow [2024-06-27 16:22:11,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 73 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 16:22:11,786 INFO L231 Difference]: Finished difference. Result has 45 places, 27 transitions, 74 flow [2024-06-27 16:22:11,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=74, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2024-06-27 16:22:11,787 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 8 predicate places. [2024-06-27 16:22:11,788 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 27 transitions, 74 flow [2024-06-27 16:22:11,788 INFO L496 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) [2024-06-27 16:22:11,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:11,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:11,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 16:22:11,790 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:11,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:11,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1338166714, now seen corresponding path program 1 times [2024-06-27 16:22:11,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369660501] [2024-06-27 16:22:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:11,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:11,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:11,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369660501] [2024-06-27 16:22:11,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369660501] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:11,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:11,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 16:22:11,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371162236] [2024-06-27 16:22:11,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:11,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 16:22:11,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:11,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 16:22:11,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 16:22:12,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 33 [2024-06-27 16:22:12,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 27 transitions, 74 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:12,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:12,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 33 [2024-06-27 16:22:12,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:12,209 INFO L124 PetriNetUnfolderBase]: 245/496 cut-off events. [2024-06-27 16:22:12,209 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2024-06-27 16:22:12,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1061 conditions, 496 events. 245/496 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2469 event pairs, 69 based on Foata normal form. 20/511 useless extension candidates. Maximal degree in co-relation 1046. Up to 253 conditions per place. [2024-06-27 16:22:12,212 INFO L140 encePairwiseOnDemand]: 28/33 looper letters, 25 selfloop transitions, 2 changer transitions 23/59 dead transitions. [2024-06-27 16:22:12,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 59 transitions, 250 flow [2024-06-27 16:22:12,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 16:22:12,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 16:22:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 129 transitions. [2024-06-27 16:22:12,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5584415584415584 [2024-06-27 16:22:12,214 INFO L175 Difference]: Start difference. First operand has 45 places, 27 transitions, 74 flow. Second operand 7 states and 129 transitions. [2024-06-27 16:22:12,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 59 transitions, 250 flow [2024-06-27 16:22:12,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 59 transitions, 230 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-06-27 16:22:12,218 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 78 flow [2024-06-27 16:22:12,218 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=78, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2024-06-27 16:22:12,225 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 7 predicate places. [2024-06-27 16:22:12,225 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 78 flow [2024-06-27 16:22:12,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:12,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:12,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:12,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 16:22:12,226 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:12,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:12,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1356102712, now seen corresponding path program 1 times [2024-06-27 16:22:12,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:12,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212693155] [2024-06-27 16:22:12,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:12,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:12,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:12,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212693155] [2024-06-27 16:22:12,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212693155] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:12,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:12,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:22:12,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942060225] [2024-06-27 16:22:12,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:12,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:22:12,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:12,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:22:12,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:22:12,858 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:12,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:12,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:12,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:12,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:13,230 INFO L124 PetriNetUnfolderBase]: 309/642 cut-off events. [2024-06-27 16:22:13,231 INFO L125 PetriNetUnfolderBase]: For 141/142 co-relation queries the response was YES. [2024-06-27 16:22:13,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 642 events. 309/642 cut-off events. For 141/142 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3170 event pairs, 37 based on Foata normal form. 15/652 useless extension candidates. Maximal degree in co-relation 1376. Up to 329 conditions per place. [2024-06-27 16:22:13,235 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 33 selfloop transitions, 10 changer transitions 21/72 dead transitions. [2024-06-27 16:22:13,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 72 transitions, 316 flow [2024-06-27 16:22:13,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 16:22:13,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 16:22:13,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 166 transitions. [2024-06-27 16:22:13,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503030303030303 [2024-06-27 16:22:13,239 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 78 flow. Second operand 10 states and 166 transitions. [2024-06-27 16:22:13,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 72 transitions, 316 flow [2024-06-27 16:22:13,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 292 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-06-27 16:22:13,246 INFO L231 Difference]: Finished difference. Result has 49 places, 35 transitions, 152 flow [2024-06-27 16:22:13,248 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=152, PETRI_PLACES=49, PETRI_TRANSITIONS=35} [2024-06-27 16:22:13,250 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 12 predicate places. [2024-06-27 16:22:13,250 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 35 transitions, 152 flow [2024-06-27 16:22:13,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:13,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:13,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:13,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 16:22:13,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:13,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1783598304, now seen corresponding path program 2 times [2024-06-27 16:22:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:13,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286489170] [2024-06-27 16:22:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:13,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:13,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:14,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:14,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286489170] [2024-06-27 16:22:14,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286489170] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:14,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:14,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-06-27 16:22:14,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448736833] [2024-06-27 16:22:14,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:14,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-27 16:22:14,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:14,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-27 16:22:14,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-06-27 16:22:14,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-06-27 16:22:14,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 35 transitions, 152 flow. Second operand has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:14,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:14,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-06-27 16:22:14,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:14,975 INFO L124 PetriNetUnfolderBase]: 380/744 cut-off events. [2024-06-27 16:22:14,975 INFO L125 PetriNetUnfolderBase]: For 609/609 co-relation queries the response was YES. [2024-06-27 16:22:14,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2268 conditions, 744 events. 380/744 cut-off events. For 609/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3734 event pairs, 44 based on Foata normal form. 14/754 useless extension candidates. Maximal degree in co-relation 2250. Up to 456 conditions per place. [2024-06-27 16:22:14,982 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 45 selfloop transitions, 17 changer transitions 19/88 dead transitions. [2024-06-27 16:22:14,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 88 transitions, 543 flow [2024-06-27 16:22:14,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-27 16:22:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-27 16:22:14,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 175 transitions. [2024-06-27 16:22:14,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4820936639118457 [2024-06-27 16:22:14,985 INFO L175 Difference]: Start difference. First operand has 49 places, 35 transitions, 152 flow. Second operand 11 states and 175 transitions. [2024-06-27 16:22:14,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 88 transitions, 543 flow [2024-06-27 16:22:14,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 88 transitions, 534 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-27 16:22:14,991 INFO L231 Difference]: Finished difference. Result has 59 places, 47 transitions, 294 flow [2024-06-27 16:22:14,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=294, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2024-06-27 16:22:14,994 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 22 predicate places. [2024-06-27 16:22:14,994 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 294 flow [2024-06-27 16:22:14,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.363636363636363) internal successors, (114), 11 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:14,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:14,995 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:14,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 16:22:14,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:14,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:14,997 INFO L85 PathProgramCache]: Analyzing trace with hash -337695616, now seen corresponding path program 1 times [2024-06-27 16:22:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:15,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42462918] [2024-06-27 16:22:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:16,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:16,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:16,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42462918] [2024-06-27 16:22:16,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42462918] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:16,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:16,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-06-27 16:22:16,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738244897] [2024-06-27 16:22:16,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:16,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-27 16:22:16,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:16,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-27 16:22:16,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-06-27 16:22:16,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:16,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 294 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:16,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:16,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:16,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:16,623 INFO L124 PetriNetUnfolderBase]: 319/649 cut-off events. [2024-06-27 16:22:16,623 INFO L125 PetriNetUnfolderBase]: For 1463/1497 co-relation queries the response was YES. [2024-06-27 16:22:16,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2393 conditions, 649 events. 319/649 cut-off events. For 1463/1497 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 3270 event pairs, 27 based on Foata normal form. 8/655 useless extension candidates. Maximal degree in co-relation 2369. Up to 330 conditions per place. [2024-06-27 16:22:16,629 INFO L140 encePairwiseOnDemand]: 26/33 looper letters, 44 selfloop transitions, 11 changer transitions 13/77 dead transitions. [2024-06-27 16:22:16,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 77 transitions, 581 flow [2024-06-27 16:22:16,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:22:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:22:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 146 transitions. [2024-06-27 16:22:16,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49158249158249157 [2024-06-27 16:22:16,630 INFO L175 Difference]: Start difference. First operand has 59 places, 47 transitions, 294 flow. Second operand 9 states and 146 transitions. [2024-06-27 16:22:16,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 77 transitions, 581 flow [2024-06-27 16:22:16,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 77 transitions, 531 flow, removed 25 selfloop flow, removed 4 redundant places. [2024-06-27 16:22:16,637 INFO L231 Difference]: Finished difference. Result has 64 places, 47 transitions, 305 flow [2024-06-27 16:22:16,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=305, PETRI_PLACES=64, PETRI_TRANSITIONS=47} [2024-06-27 16:22:16,638 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 27 predicate places. [2024-06-27 16:22:16,638 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 305 flow [2024-06-27 16:22:16,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:16,639 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:16,639 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:16,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 16:22:16,639 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:16,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1058009336, now seen corresponding path program 1 times [2024-06-27 16:22:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:16,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323447571] [2024-06-27 16:22:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:16,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:17,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:17,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323447571] [2024-06-27 16:22:17,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323447571] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:17,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:17,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 16:22:17,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412055696] [2024-06-27 16:22:17,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:17,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 16:22:17,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:17,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 16:22:17,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-06-27 16:22:17,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:17,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 305 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:17,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:17,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:17,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:17,476 INFO L124 PetriNetUnfolderBase]: 396/805 cut-off events. [2024-06-27 16:22:17,478 INFO L125 PetriNetUnfolderBase]: For 1842/1860 co-relation queries the response was YES. [2024-06-27 16:22:17,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2948 conditions, 805 events. 396/805 cut-off events. For 1842/1860 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4385 event pairs, 69 based on Foata normal form. 19/823 useless extension candidates. Maximal degree in co-relation 2921. Up to 322 conditions per place. [2024-06-27 16:22:17,485 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 60 selfloop transitions, 30 changer transitions 13/112 dead transitions. [2024-06-27 16:22:17,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 112 transitions, 878 flow [2024-06-27 16:22:17,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-27 16:22:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-27 16:22:17,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 191 transitions. [2024-06-27 16:22:17,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5261707988980716 [2024-06-27 16:22:17,487 INFO L175 Difference]: Start difference. First operand has 64 places, 47 transitions, 305 flow. Second operand 11 states and 191 transitions. [2024-06-27 16:22:17,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 112 transitions, 878 flow [2024-06-27 16:22:17,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 112 transitions, 806 flow, removed 10 selfloop flow, removed 9 redundant places. [2024-06-27 16:22:17,519 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 548 flow [2024-06-27 16:22:17,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=548, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2024-06-27 16:22:17,520 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 32 predicate places. [2024-06-27 16:22:17,520 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 548 flow [2024-06-27 16:22:17,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:17,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:17,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:17,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 16:22:17,520 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:17,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:17,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1305571412, now seen corresponding path program 2 times [2024-06-27 16:22:17,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:17,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531499224] [2024-06-27 16:22:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:17,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:18,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:18,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:18,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531499224] [2024-06-27 16:22:18,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531499224] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:18,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:18,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 16:22:18,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921011103] [2024-06-27 16:22:18,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:18,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 16:22:18,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:18,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 16:22:18,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-06-27 16:22:18,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:18,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 548 flow. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2024-06-27 16:22:18,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:18,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:18,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:18,354 INFO L124 PetriNetUnfolderBase]: 360/731 cut-off events. [2024-06-27 16:22:18,354 INFO L125 PetriNetUnfolderBase]: For 2319/2337 co-relation queries the response was YES. [2024-06-27 16:22:18,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3090 conditions, 731 events. 360/731 cut-off events. For 2319/2337 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 3865 event pairs, 34 based on Foata normal form. 13/743 useless extension candidates. Maximal degree in co-relation 3060. Up to 455 conditions per place. [2024-06-27 16:22:18,361 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 52 selfloop transitions, 27 changer transitions 10/98 dead transitions. [2024-06-27 16:22:18,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 98 transitions, 917 flow [2024-06-27 16:22:18,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 16:22:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 16:22:18,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 135 transitions. [2024-06-27 16:22:18,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2024-06-27 16:22:18,364 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 548 flow. Second operand 8 states and 135 transitions. [2024-06-27 16:22:18,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 98 transitions, 917 flow [2024-06-27 16:22:18,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 98 transitions, 892 flow, removed 11 selfloop flow, removed 3 redundant places. [2024-06-27 16:22:18,376 INFO L231 Difference]: Finished difference. Result has 75 places, 76 transitions, 702 flow [2024-06-27 16:22:18,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=702, PETRI_PLACES=75, PETRI_TRANSITIONS=76} [2024-06-27 16:22:18,378 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 38 predicate places. [2024-06-27 16:22:18,380 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 76 transitions, 702 flow [2024-06-27 16:22:18,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 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) [2024-06-27 16:22:18,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:18,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:18,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 16:22:18,381 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:18,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:18,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1792122590, now seen corresponding path program 3 times [2024-06-27 16:22:18,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:18,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348373848] [2024-06-27 16:22:18,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:18,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:18,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:18,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:18,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348373848] [2024-06-27 16:22:18,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348373848] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:18,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:18,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 16:22:18,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027134374] [2024-06-27 16:22:18,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:18,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 16:22:18,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:18,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 16:22:18,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-06-27 16:22:18,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:18,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 702 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:18,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:18,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:18,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:19,194 INFO L124 PetriNetUnfolderBase]: 424/868 cut-off events. [2024-06-27 16:22:19,194 INFO L125 PetriNetUnfolderBase]: For 4097/4139 co-relation queries the response was YES. [2024-06-27 16:22:19,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4015 conditions, 868 events. 424/868 cut-off events. For 4097/4139 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4866 event pairs, 51 based on Foata normal form. 48/915 useless extension candidates. Maximal degree in co-relation 3981. Up to 453 conditions per place. [2024-06-27 16:22:19,202 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 63 selfloop transitions, 39 changer transitions 18/129 dead transitions. [2024-06-27 16:22:19,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 129 transitions, 1371 flow [2024-06-27 16:22:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 16:22:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 16:22:19,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 173 transitions. [2024-06-27 16:22:19,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5242424242424243 [2024-06-27 16:22:19,204 INFO L175 Difference]: Start difference. First operand has 75 places, 76 transitions, 702 flow. Second operand 10 states and 173 transitions. [2024-06-27 16:22:19,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 129 transitions, 1371 flow [2024-06-27 16:22:19,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 129 transitions, 1320 flow, removed 21 selfloop flow, removed 4 redundant places. [2024-06-27 16:22:19,217 INFO L231 Difference]: Finished difference. Result has 84 places, 89 transitions, 979 flow [2024-06-27 16:22:19,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=979, PETRI_PLACES=84, PETRI_TRANSITIONS=89} [2024-06-27 16:22:19,218 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 47 predicate places. [2024-06-27 16:22:19,218 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 89 transitions, 979 flow [2024-06-27 16:22:19,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:19,222 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:19,222 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:19,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 16:22:19,222 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:19,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:19,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1117949278, now seen corresponding path program 4 times [2024-06-27 16:22:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037839670] [2024-06-27 16:22:19,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:20,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037839670] [2024-06-27 16:22:20,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037839670] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:20,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-06-27 16:22:20,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518265448] [2024-06-27 16:22:20,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:20,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-27 16:22:20,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-27 16:22:20,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-06-27 16:22:20,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-06-27 16:22:20,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 89 transitions, 979 flow. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:20,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:20,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-06-27 16:22:20,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:20,805 INFO L124 PetriNetUnfolderBase]: 695/1284 cut-off events. [2024-06-27 16:22:20,806 INFO L125 PetriNetUnfolderBase]: For 8422/8470 co-relation queries the response was YES. [2024-06-27 16:22:20,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6368 conditions, 1284 events. 695/1284 cut-off events. For 8422/8470 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6864 event pairs, 149 based on Foata normal form. 49/1325 useless extension candidates. Maximal degree in co-relation 6329. Up to 789 conditions per place. [2024-06-27 16:22:20,820 INFO L140 encePairwiseOnDemand]: 20/33 looper letters, 91 selfloop transitions, 67 changer transitions 19/184 dead transitions. [2024-06-27 16:22:20,820 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 184 transitions, 2165 flow [2024-06-27 16:22:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-06-27 16:22:20,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-06-27 16:22:20,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 231 transitions. [2024-06-27 16:22:20,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-06-27 16:22:20,822 INFO L175 Difference]: Start difference. First operand has 84 places, 89 transitions, 979 flow. Second operand 15 states and 231 transitions. [2024-06-27 16:22:20,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 184 transitions, 2165 flow [2024-06-27 16:22:20,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 184 transitions, 2060 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-06-27 16:22:20,843 INFO L231 Difference]: Finished difference. Result has 98 places, 125 transitions, 1574 flow [2024-06-27 16:22:20,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1574, PETRI_PLACES=98, PETRI_TRANSITIONS=125} [2024-06-27 16:22:20,844 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 61 predicate places. [2024-06-27 16:22:20,844 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 125 transitions, 1574 flow [2024-06-27 16:22:20,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:20,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:20,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 16:22:20,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 16:22:20,845 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:20,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:20,845 INFO L85 PathProgramCache]: Analyzing trace with hash 572388710, now seen corresponding path program 5 times [2024-06-27 16:22:20,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:20,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260553095] [2024-06-27 16:22:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:20,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:20,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:21,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:21,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:21,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260553095] [2024-06-27 16:22:21,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260553095] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:21,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:21,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-06-27 16:22:21,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679824493] [2024-06-27 16:22:21,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:21,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-06-27 16:22:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:21,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-06-27 16:22:21,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-06-27 16:22:21,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:21,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 125 transitions, 1574 flow. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:21,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:21,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:21,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:21,810 INFO L124 PetriNetUnfolderBase]: 538/1090 cut-off events. [2024-06-27 16:22:21,811 INFO L125 PetriNetUnfolderBase]: For 8267/8333 co-relation queries the response was YES. [2024-06-27 16:22:21,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5928 conditions, 1090 events. 538/1090 cut-off events. For 8267/8333 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6330 event pairs, 60 based on Foata normal form. 41/1128 useless extension candidates. Maximal degree in co-relation 5884. Up to 664 conditions per place. [2024-06-27 16:22:21,822 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 77 selfloop transitions, 53 changer transitions 17/157 dead transitions. [2024-06-27 16:22:21,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 157 transitions, 2149 flow [2024-06-27 16:22:21,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 16:22:21,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 16:22:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 162 transitions. [2024-06-27 16:22:21,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4909090909090909 [2024-06-27 16:22:21,824 INFO L175 Difference]: Start difference. First operand has 98 places, 125 transitions, 1574 flow. Second operand 10 states and 162 transitions. [2024-06-27 16:22:21,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 157 transitions, 2149 flow [2024-06-27 16:22:21,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 157 transitions, 2018 flow, removed 52 selfloop flow, removed 8 redundant places. [2024-06-27 16:22:21,855 INFO L231 Difference]: Finished difference. Result has 100 places, 128 transitions, 1692 flow [2024-06-27 16:22:21,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1477, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1692, PETRI_PLACES=100, PETRI_TRANSITIONS=128} [2024-06-27 16:22:21,856 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 63 predicate places. [2024-06-27 16:22:21,857 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 128 transitions, 1692 flow [2024-06-27 16:22:21,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:21,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:21,858 INFO L208 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] [2024-06-27 16:22:21,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 16:22:21,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:21,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:21,859 INFO L85 PathProgramCache]: Analyzing trace with hash -371791469, now seen corresponding path program 1 times [2024-06-27 16:22:21,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:21,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866184351] [2024-06-27 16:22:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:21,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:22,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:22,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866184351] [2024-06-27 16:22:22,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866184351] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:22,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:22,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:22:22,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091971489] [2024-06-27 16:22:22,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:22,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:22:22,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:22,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:22:22,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:22:22,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:22,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 128 transitions, 1692 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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) [2024-06-27 16:22:22,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:22,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:22,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:22,937 INFO L124 PetriNetUnfolderBase]: 589/1197 cut-off events. [2024-06-27 16:22:22,938 INFO L125 PetriNetUnfolderBase]: For 11185/11274 co-relation queries the response was YES. [2024-06-27 16:22:22,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6836 conditions, 1197 events. 589/1197 cut-off events. For 11185/11274 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7369 event pairs, 63 based on Foata normal form. 101/1295 useless extension candidates. Maximal degree in co-relation 6793. Up to 357 conditions per place. [2024-06-27 16:22:22,950 INFO L140 encePairwiseOnDemand]: 21/33 looper letters, 60 selfloop transitions, 36 changer transitions 83/188 dead transitions. [2024-06-27 16:22:22,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 188 transitions, 2654 flow [2024-06-27 16:22:22,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 16:22:22,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 16:22:22,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 180 transitions. [2024-06-27 16:22:22,952 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-06-27 16:22:22,953 INFO L175 Difference]: Start difference. First operand has 100 places, 128 transitions, 1692 flow. Second operand 10 states and 180 transitions. [2024-06-27 16:22:22,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 188 transitions, 2654 flow [2024-06-27 16:22:22,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 188 transitions, 2513 flow, removed 34 selfloop flow, removed 8 redundant places. [2024-06-27 16:22:22,993 INFO L231 Difference]: Finished difference. Result has 102 places, 93 transitions, 1216 flow [2024-06-27 16:22:22,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1601, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1216, PETRI_PLACES=102, PETRI_TRANSITIONS=93} [2024-06-27 16:22:22,994 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 65 predicate places. [2024-06-27 16:22:22,994 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 93 transitions, 1216 flow [2024-06-27 16:22:22,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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) [2024-06-27 16:22:22,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:22,995 INFO L208 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] [2024-06-27 16:22:22,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 16:22:22,995 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:22,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:22,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2024685015, now seen corresponding path program 2 times [2024-06-27 16:22:22,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:22,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013520017] [2024-06-27 16:22:22,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:23,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:23,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:23,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013520017] [2024-06-27 16:22:23,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013520017] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:23,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:23,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-27 16:22:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873512719] [2024-06-27 16:22:23,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:23,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-27 16:22:23,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:23,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-27 16:22:23,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-06-27 16:22:23,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:23,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 93 transitions, 1216 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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) [2024-06-27 16:22:23,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:23,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:23,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:24,374 INFO L124 PetriNetUnfolderBase]: 281/639 cut-off events. [2024-06-27 16:22:24,374 INFO L125 PetriNetUnfolderBase]: For 6057/6139 co-relation queries the response was YES. [2024-06-27 16:22:24,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3646 conditions, 639 events. 281/639 cut-off events. For 6057/6139 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3535 event pairs, 58 based on Foata normal form. 80/717 useless extension candidates. Maximal degree in co-relation 3603. Up to 180 conditions per place. [2024-06-27 16:22:24,382 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 61 selfloop transitions, 40 changer transitions 23/133 dead transitions. [2024-06-27 16:22:24,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 133 transitions, 1798 flow [2024-06-27 16:22:24,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-27 16:22:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-27 16:22:24,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 180 transitions. [2024-06-27 16:22:24,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49586776859504134 [2024-06-27 16:22:24,385 INFO L175 Difference]: Start difference. First operand has 102 places, 93 transitions, 1216 flow. Second operand 11 states and 180 transitions. [2024-06-27 16:22:24,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 133 transitions, 1798 flow [2024-06-27 16:22:24,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 133 transitions, 1612 flow, removed 40 selfloop flow, removed 14 redundant places. [2024-06-27 16:22:24,404 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 1096 flow [2024-06-27 16:22:24,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1065, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1096, PETRI_PLACES=95, PETRI_TRANSITIONS=87} [2024-06-27 16:22:24,405 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 58 predicate places. [2024-06-27 16:22:24,405 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 1096 flow [2024-06-27 16:22:24,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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) [2024-06-27 16:22:24,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:24,406 INFO L208 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] [2024-06-27 16:22:24,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 16:22:24,406 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:24,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:24,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1628155562, now seen corresponding path program 1 times [2024-06-27 16:22:24,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:24,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996776175] [2024-06-27 16:22:24,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:24,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:24,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:24,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996776175] [2024-06-27 16:22:24,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996776175] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:24,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:24,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-27 16:22:24,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660761767] [2024-06-27 16:22:24,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:24,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-27 16:22:24,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:24,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-27 16:22:24,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-27 16:22:24,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 33 [2024-06-27 16:22:24,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 1096 flow. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2024-06-27 16:22:24,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:24,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 33 [2024-06-27 16:22:24,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:25,345 INFO L124 PetriNetUnfolderBase]: 380/805 cut-off events. [2024-06-27 16:22:25,345 INFO L125 PetriNetUnfolderBase]: For 7056/7110 co-relation queries the response was YES. [2024-06-27 16:22:25,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4358 conditions, 805 events. 380/805 cut-off events. For 7056/7110 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 4200 event pairs, 86 based on Foata normal form. 37/836 useless extension candidates. Maximal degree in co-relation 4319. Up to 213 conditions per place. [2024-06-27 16:22:25,353 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 41 selfloop transitions, 24 changer transitions 64/139 dead transitions. [2024-06-27 16:22:25,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 139 transitions, 1845 flow [2024-06-27 16:22:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:22:25,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:22:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 150 transitions. [2024-06-27 16:22:25,355 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5050505050505051 [2024-06-27 16:22:25,355 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 1096 flow. Second operand 9 states and 150 transitions. [2024-06-27 16:22:25,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 139 transitions, 1845 flow [2024-06-27 16:22:25,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 139 transitions, 1746 flow, removed 12 selfloop flow, removed 9 redundant places. [2024-06-27 16:22:25,371 INFO L231 Difference]: Finished difference. Result has 98 places, 70 transitions, 912 flow [2024-06-27 16:22:25,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=1015, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=912, PETRI_PLACES=98, PETRI_TRANSITIONS=70} [2024-06-27 16:22:25,372 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 61 predicate places. [2024-06-27 16:22:25,372 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 70 transitions, 912 flow [2024-06-27 16:22:25,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2024-06-27 16:22:25,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:25,373 INFO L208 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] [2024-06-27 16:22:25,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-06-27 16:22:25,373 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:25,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:25,373 INFO L85 PathProgramCache]: Analyzing trace with hash 924482914, now seen corresponding path program 2 times [2024-06-27 16:22:25,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:25,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868377682] [2024-06-27 16:22:25,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:25,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:25,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:25,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868377682] [2024-06-27 16:22:25,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868377682] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:25,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:25,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 16:22:25,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092105000] [2024-06-27 16:22:25,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:25,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 16:22:25,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:25,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 16:22:25,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-06-27 16:22:25,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-06-27 16:22:25,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 70 transitions, 912 flow. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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) [2024-06-27 16:22:25,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:25,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-06-27 16:22:25,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:26,162 INFO L124 PetriNetUnfolderBase]: 216/496 cut-off events. [2024-06-27 16:22:26,162 INFO L125 PetriNetUnfolderBase]: For 4644/4660 co-relation queries the response was YES. [2024-06-27 16:22:26,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2658 conditions, 496 events. 216/496 cut-off events. For 4644/4660 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2326 event pairs, 83 based on Foata normal form. 29/522 useless extension candidates. Maximal degree in co-relation 2618. Up to 216 conditions per place. [2024-06-27 16:22:26,167 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 49 selfloop transitions, 20 changer transitions 23/99 dead transitions. [2024-06-27 16:22:26,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 99 transitions, 1243 flow [2024-06-27 16:22:26,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:22:26,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:22:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 132 transitions. [2024-06-27 16:22:26,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-06-27 16:22:26,169 INFO L175 Difference]: Start difference. First operand has 98 places, 70 transitions, 912 flow. Second operand 9 states and 132 transitions. [2024-06-27 16:22:26,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 99 transitions, 1243 flow [2024-06-27 16:22:26,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 99 transitions, 1137 flow, removed 28 selfloop flow, removed 12 redundant places. [2024-06-27 16:22:26,182 INFO L231 Difference]: Finished difference. Result has 92 places, 66 transitions, 840 flow [2024-06-27 16:22:26,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=840, PETRI_PLACES=92, PETRI_TRANSITIONS=66} [2024-06-27 16:22:26,183 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 55 predicate places. [2024-06-27 16:22:26,183 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 66 transitions, 840 flow [2024-06-27 16:22:26,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 9 states have internal predecessors, (89), 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) [2024-06-27 16:22:26,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:26,183 INFO L208 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] [2024-06-27 16:22:26,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-06-27 16:22:26,183 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:26,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:26,184 INFO L85 PathProgramCache]: Analyzing trace with hash -832652783, now seen corresponding path program 1 times [2024-06-27 16:22:26,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:26,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466630701] [2024-06-27 16:22:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:26,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:26,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:26,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:26,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466630701] [2024-06-27 16:22:26,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466630701] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:26,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:26,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-27 16:22:26,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083483872] [2024-06-27 16:22:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:26,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-27 16:22:26,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-27 16:22:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-06-27 16:22:26,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:26,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 66 transitions, 840 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:26,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:26,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:26,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:27,167 INFO L124 PetriNetUnfolderBase]: 129/358 cut-off events. [2024-06-27 16:22:27,167 INFO L125 PetriNetUnfolderBase]: For 2831/2847 co-relation queries the response was YES. [2024-06-27 16:22:27,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1930 conditions, 358 events. 129/358 cut-off events. For 2831/2847 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1860 event pairs, 48 based on Foata normal form. 18/372 useless extension candidates. Maximal degree in co-relation 1894. Up to 124 conditions per place. [2024-06-27 16:22:27,171 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 35 selfloop transitions, 22 changer transitions 20/86 dead transitions. [2024-06-27 16:22:27,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 86 transitions, 1114 flow [2024-06-27 16:22:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:22:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:22:27,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 139 transitions. [2024-06-27 16:22:27,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.468013468013468 [2024-06-27 16:22:27,173 INFO L175 Difference]: Start difference. First operand has 92 places, 66 transitions, 840 flow. Second operand 9 states and 139 transitions. [2024-06-27 16:22:27,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 86 transitions, 1114 flow [2024-06-27 16:22:27,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 86 transitions, 1027 flow, removed 10 selfloop flow, removed 13 redundant places. [2024-06-27 16:22:27,182 INFO L231 Difference]: Finished difference. Result has 90 places, 60 transitions, 753 flow [2024-06-27 16:22:27,182 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=753, PETRI_PLACES=90, PETRI_TRANSITIONS=60} [2024-06-27 16:22:27,182 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 53 predicate places. [2024-06-27 16:22:27,182 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 60 transitions, 753 flow [2024-06-27 16:22:27,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:27,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:27,183 INFO L208 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] [2024-06-27 16:22:27,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-06-27 16:22:27,183 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:27,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:27,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2133617093, now seen corresponding path program 2 times [2024-06-27 16:22:27,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:27,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153056520] [2024-06-27 16:22:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:27,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:27,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:27,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153056520] [2024-06-27 16:22:27,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153056520] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:27,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:27,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-06-27 16:22:27,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613194181] [2024-06-27 16:22:27,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:27,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-27 16:22:27,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:27,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-27 16:22:27,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-06-27 16:22:27,830 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:27,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 60 transitions, 753 flow. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:27,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:27,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:27,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:28,066 INFO L124 PetriNetUnfolderBase]: 118/327 cut-off events. [2024-06-27 16:22:28,066 INFO L125 PetriNetUnfolderBase]: For 2715/2722 co-relation queries the response was YES. [2024-06-27 16:22:28,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 327 events. 118/327 cut-off events. For 2715/2722 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1656 event pairs, 43 based on Foata normal form. 7/332 useless extension candidates. Maximal degree in co-relation 1744. Up to 121 conditions per place. [2024-06-27 16:22:28,069 INFO L140 encePairwiseOnDemand]: 23/33 looper letters, 32 selfloop transitions, 16 changer transitions 23/80 dead transitions. [2024-06-27 16:22:28,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 80 transitions, 996 flow [2024-06-27 16:22:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-06-27 16:22:28,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-06-27 16:22:28,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 137 transitions. [2024-06-27 16:22:28,071 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4612794612794613 [2024-06-27 16:22:28,071 INFO L175 Difference]: Start difference. First operand has 90 places, 60 transitions, 753 flow. Second operand 9 states and 137 transitions. [2024-06-27 16:22:28,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 80 transitions, 996 flow [2024-06-27 16:22:28,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 80 transitions, 872 flow, removed 23 selfloop flow, removed 13 redundant places. [2024-06-27 16:22:28,080 INFO L231 Difference]: Finished difference. Result has 84 places, 51 transitions, 578 flow [2024-06-27 16:22:28,080 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=578, PETRI_PLACES=84, PETRI_TRANSITIONS=51} [2024-06-27 16:22:28,080 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 47 predicate places. [2024-06-27 16:22:28,081 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 51 transitions, 578 flow [2024-06-27 16:22:28,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:28,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:28,081 INFO L208 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] [2024-06-27 16:22:28,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-06-27 16:22:28,081 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:28,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:28,082 INFO L85 PathProgramCache]: Analyzing trace with hash 262454025, now seen corresponding path program 3 times [2024-06-27 16:22:28,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:28,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977604358] [2024-06-27 16:22:28,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:28,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:29,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:29,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977604358] [2024-06-27 16:22:29,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977604358] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:29,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:29,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-06-27 16:22:29,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123726924] [2024-06-27 16:22:29,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:29,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-06-27 16:22:29,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:29,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-06-27 16:22:29,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-06-27 16:22:29,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 33 [2024-06-27 16:22:29,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 51 transitions, 578 flow. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:29,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:29,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 33 [2024-06-27 16:22:29,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:29,603 INFO L124 PetriNetUnfolderBase]: 162/378 cut-off events. [2024-06-27 16:22:29,603 INFO L125 PetriNetUnfolderBase]: For 2326/2331 co-relation queries the response was YES. [2024-06-27 16:22:29,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 378 events. 162/378 cut-off events. For 2326/2331 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1635 event pairs, 67 based on Foata normal form. 12/387 useless extension candidates. Maximal degree in co-relation 1720. Up to 148 conditions per place. [2024-06-27 16:22:29,607 INFO L140 encePairwiseOnDemand]: 25/33 looper letters, 32 selfloop transitions, 5 changer transitions 40/84 dead transitions. [2024-06-27 16:22:29,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 84 transitions, 879 flow [2024-06-27 16:22:29,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 16:22:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 16:22:29,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 140 transitions. [2024-06-27 16:22:29,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42424242424242425 [2024-06-27 16:22:29,608 INFO L175 Difference]: Start difference. First operand has 84 places, 51 transitions, 578 flow. Second operand 10 states and 140 transitions. [2024-06-27 16:22:29,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 84 transitions, 879 flow [2024-06-27 16:22:29,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 84 transitions, 653 flow, removed 17 selfloop flow, removed 20 redundant places. [2024-06-27 16:22:29,615 INFO L231 Difference]: Finished difference. Result has 70 places, 40 transitions, 279 flow [2024-06-27 16:22:29,615 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=279, PETRI_PLACES=70, PETRI_TRANSITIONS=40} [2024-06-27 16:22:29,616 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 33 predicate places. [2024-06-27 16:22:29,616 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 40 transitions, 279 flow [2024-06-27 16:22:29,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 13 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 16:22:29,617 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 16:22:29,617 INFO L208 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] [2024-06-27 16:22:29,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-06-27 16:22:29,618 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-06-27 16:22:29,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 16:22:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1737969463, now seen corresponding path program 4 times [2024-06-27 16:22:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 16:22:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513235184] [2024-06-27 16:22:29,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 16:22:29,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 16:22:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 16:22:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 16:22:31,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 16:22:31,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513235184] [2024-06-27 16:22:31,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513235184] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 16:22:31,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 16:22:31,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-06-27 16:22:31,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472977605] [2024-06-27 16:22:31,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 16:22:31,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-27 16:22:31,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 16:22:31,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-27 16:22:31,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-06-27 16:22:31,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 33 [2024-06-27 16:22:31,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 40 transitions, 279 flow. Second operand has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 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) [2024-06-27 16:22:31,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 16:22:31,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 33 [2024-06-27 16:22:31,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 16:22:31,622 INFO L124 PetriNetUnfolderBase]: 56/154 cut-off events. [2024-06-27 16:22:31,623 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2024-06-27 16:22:31,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 625 conditions, 154 events. 56/154 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 564 event pairs, 12 based on Foata normal form. 4/158 useless extension candidates. Maximal degree in co-relation 607. Up to 52 conditions per place. [2024-06-27 16:22:31,624 INFO L140 encePairwiseOnDemand]: 22/33 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2024-06-27 16:22:31,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 53 transitions, 405 flow [2024-06-27 16:22:31,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-06-27 16:22:31,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-06-27 16:22:31,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 146 transitions. [2024-06-27 16:22:31,625 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4022038567493113 [2024-06-27 16:22:31,625 INFO L175 Difference]: Start difference. First operand has 70 places, 40 transitions, 279 flow. Second operand 11 states and 146 transitions. [2024-06-27 16:22:31,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 53 transitions, 405 flow [2024-06-27 16:22:31,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 371 flow, removed 8 selfloop flow, removed 9 redundant places. [2024-06-27 16:22:31,628 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-06-27 16:22:31,628 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=33, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-06-27 16:22:31,629 INFO L281 CegarLoopForPetriNet]: 37 programPoint places, 23 predicate places. [2024-06-27 16:22:31,629 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-06-27 16:22:31,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 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) [2024-06-27 16:22:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-06-27 16:22:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-06-27 16:22:31,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-06-27 16:22:31,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-06-27 16:22:31,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-06-27 16:22:31,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-06-27 16:22:31,633 INFO L445 BasicCegarLoop]: Path program histogram: [5, 4, 2, 2, 2, 1, 1, 1, 1] [2024-06-27 16:22:31,638 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-27 16:22:31,638 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-27 16:22:31,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.06 04:22:31 BasicIcfg [2024-06-27 16:22:31,643 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-27 16:22:31,644 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-06-27 16:22:31,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-06-27 16:22:31,644 INFO L274 PluginConnector]: Witness Printer initialized [2024-06-27 16:22:31,644 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 04:22:10" (3/4) ... [2024-06-27 16:22:31,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2024-06-27 16:22:31,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-06-27 16:22:31,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-06-27 16:22:31,653 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-06-27 16:22:31,654 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-06-27 16:22:31,654 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-06-27 16:22:31,654 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-06-27 16:22:31,732 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-06-27 16:22:31,732 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-06-27 16:22:31,733 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-06-27 16:22:31,733 INFO L158 Benchmark]: Toolchain (without parser) took 23307.86ms. Allocated memory was 157.3MB in the beginning and 551.6MB in the end (delta: 394.3MB). Free memory was 121.6MB in the beginning and 460.5MB in the end (delta: -338.9MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,733 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 90.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,734 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.26ms. Allocated memory is still 157.3MB. Free memory was 121.1MB in the beginning and 94.3MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,734 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.65ms. Allocated memory is still 157.3MB. Free memory was 94.3MB in the beginning and 91.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,734 INFO L158 Benchmark]: Boogie Preprocessor took 89.76ms. Allocated memory is still 157.3MB. Free memory was 91.2MB in the beginning and 87.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,735 INFO L158 Benchmark]: RCFGBuilder took 801.02ms. Allocated memory is still 157.3MB. Free memory was 87.0MB in the beginning and 71.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,735 INFO L158 Benchmark]: TraceAbstraction took 21562.67ms. Allocated memory was 157.3MB in the beginning and 551.6MB in the end (delta: 394.3MB). Free memory was 70.3MB in the beginning and 465.8MB in the end (delta: -395.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,735 INFO L158 Benchmark]: Witness Printer took 88.98ms. Allocated memory is still 551.6MB. Free memory was 465.8MB in the beginning and 460.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-27 16:22:31,737 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 109.1MB. Free memory was 80.4MB in the beginning and 80.3MB in the end (delta: 90.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 679.26ms. Allocated memory is still 157.3MB. Free memory was 121.1MB in the beginning and 94.3MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.65ms. Allocated memory is still 157.3MB. Free memory was 94.3MB in the beginning and 91.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.76ms. Allocated memory is still 157.3MB. Free memory was 91.2MB in the beginning and 87.5MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 801.02ms. Allocated memory is still 157.3MB. Free memory was 87.0MB in the beginning and 71.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21562.67ms. Allocated memory was 157.3MB in the beginning and 551.6MB in the end (delta: 394.3MB). Free memory was 70.3MB in the beginning and 465.8MB in the end (delta: -395.4MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Witness Printer took 88.98ms. Allocated memory is still 551.6MB. Free memory was 465.8MB in the beginning and 460.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 21.5s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1005 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 954 mSDsluCounter, 1037 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 957 mSDsCounter, 289 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3899 IncrementalHoareTripleChecker+Invalid, 4188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 289 mSolverCounterUnsat, 80 mSDtfsCounter, 3899 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1692occurred in iteration=11, InterpolantAutomatonStates: 180, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 361 ConstructedInterpolants, 0 QuantifiedInterpolants, 4737 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-27 16:22:31,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE