./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-7724a2d-m [2024-06-27 17:28:17,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-27 17:28:17,492 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-27 17:28:17,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-27 17:28:17,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-27 17:28:17,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-27 17:28:17,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-27 17:28:17,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-27 17:28:17,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-27 17:28:17,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-27 17:28:17,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-27 17:28:17,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-27 17:28:17,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-27 17:28:17,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-27 17:28:17,658 INFO L153 SettingsManager]: * Use SBE=true [2024-06-27 17:28:17,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-27 17:28:17,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-27 17:28:17,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-27 17:28:17,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-27 17:28:17,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-27 17:28:17,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-27 17:28:17,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-27 17:28:17,661 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-27 17:28:17,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-27 17:28:17,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-27 17:28:17,662 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-27 17:28:17,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-27 17:28:17,663 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-27 17:28:17,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-27 17:28:17,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-27 17:28:17,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-27 17:28:17,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-27 17:28:17,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:28:17,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-27 17:28:17,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-27 17:28:17,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-27 17:28:17,671 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-27 17:28:17,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-27 17:28:17,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-27 17:28:17,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-27 17:28:17,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-27 17:28:17,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-27 17:28:17,673 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-27 17:28:17,673 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-06-27 17:28:17,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-27 17:28:17,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-27 17:28:17,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-27 17:28:17,972 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-27 17:28:17,973 INFO L274 PluginConnector]: CDTParser initialized [2024-06-27 17:28:17,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-06-27 17:28:19,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-27 17:28:19,451 INFO L384 CDTParser]: Found 1 translation units. [2024-06-27 17:28:19,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-06-27 17:28:19,479 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f2fd1ce/18257c49834d4546b5297ec4c8d927d3/FLAGb1ee2103c [2024-06-27 17:28:19,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f2fd1ce/18257c49834d4546b5297ec4c8d927d3 [2024-06-27 17:28:19,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-27 17:28:19,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-06-27 17:28:19,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-27 17:28:19,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-27 17:28:19,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-27 17:28:19,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:28:19" (1/1) ... [2024-06-27 17:28:19,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e152d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:19, skipping insertion in model container [2024-06-27 17:28:19,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.06 05:28:19" (1/1) ... [2024-06-27 17:28:19,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-27 17:28:19,774 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-06-27 17:28:20,010 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:28:20,031 INFO L202 MainTranslator]: Completed pre-run [2024-06-27 17:28:20,044 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-06-27 17:28:20,106 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-27 17:28:20,159 INFO L206 MainTranslator]: Completed translation [2024-06-27 17:28:20,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20 WrapperNode [2024-06-27 17:28:20,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-27 17:28:20,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-27 17:28:20,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-27 17:28:20,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-27 17:28:20,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,237 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2024-06-27 17:28:20,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-27 17:28:20,239 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-27 17:28:20,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-27 17:28:20,240 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-27 17:28:20,250 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,251 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,268 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,287 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 17:28:20,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,305 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-27 17:28:20,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-27 17:28:20,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-27 17:28:20,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-27 17:28:20,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (1/1) ... [2024-06-27 17:28:20,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-27 17:28:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-27 17:28:20,349 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 17:28:20,355 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 17:28:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-27 17:28:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-27 17:28:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-06-27 17:28:20,401 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-06-27 17:28:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-06-27 17:28:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-06-27 17:28:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-06-27 17:28:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-06-27 17:28:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-06-27 17:28:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-06-27 17:28:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-27 17:28:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-27 17:28:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-27 17:28:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-27 17:28:20,407 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 17:28:20,581 INFO L244 CfgBuilder]: Building ICFG [2024-06-27 17:28:20,583 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-27 17:28:20,883 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-27 17:28:20,884 INFO L293 CfgBuilder]: Performing block encoding [2024-06-27 17:28:21,101 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-27 17:28:21,102 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-27 17:28:21,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:28:21 BoogieIcfgContainer [2024-06-27 17:28:21,103 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-27 17:28:21,105 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-27 17:28:21,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-27 17:28:21,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-27 17:28:21,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.06 05:28:19" (1/3) ... [2024-06-27 17:28:21,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7472f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:28:21, skipping insertion in model container [2024-06-27 17:28:21,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.06 05:28:20" (2/3) ... [2024-06-27 17:28:21,112 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7472f623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.06 05:28:21, skipping insertion in model container [2024-06-27 17:28:21,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.06 05:28:21" (3/3) ... [2024-06-27 17:28:21,113 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-06-27 17:28:21,122 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-06-27 17:28:21,131 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-27 17:28:21,131 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-06-27 17:28:21,131 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-27 17:28:21,183 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-06-27 17:28:21,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 112 flow [2024-06-27 17:28:21,257 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2024-06-27 17:28:21,258 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 17:28:21,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2024-06-27 17:28:21,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 48 transitions, 112 flow [2024-06-27 17:28:21,268 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 44 transitions, 100 flow [2024-06-27 17:28:21,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-27 17:28:21,291 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;@401f74d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-27 17:28:21,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-06-27 17:28:21,308 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-27 17:28:21,308 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-06-27 17:28:21,309 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 17:28:21,309 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:21,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:28:21,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:21,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:21,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1793883208, now seen corresponding path program 1 times [2024-06-27 17:28:21,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:21,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936095889] [2024-06-27 17:28:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:21,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:21,775 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 17:28:21,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:21,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936095889] [2024-06-27 17:28:21,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936095889] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:21,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:21,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-27 17:28:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444111010] [2024-06-27 17:28:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:21,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-27 17:28:21,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:21,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-27 17:28:21,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-27 17:28:21,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 48 [2024-06-27 17:28:21,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:21,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:21,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 48 [2024-06-27 17:28:21,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:22,181 INFO L124 PetriNetUnfolderBase]: 815/1447 cut-off events. [2024-06-27 17:28:22,181 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-27 17:28:22,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1447 events. 815/1447 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 9993 event pairs, 179 based on Foata normal form. 48/1452 useless extension candidates. Maximal degree in co-relation 2667. Up to 889 conditions per place. [2024-06-27 17:28:22,199 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 27 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2024-06-27 17:28:22,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 178 flow [2024-06-27 17:28:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-27 17:28:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-27 17:28:22,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-06-27 17:28:22,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-06-27 17:28:22,216 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 109 transitions. [2024-06-27 17:28:22,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 178 flow [2024-06-27 17:28:22,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-27 17:28:22,226 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 94 flow [2024-06-27 17:28:22,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-06-27 17:28:22,233 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-06-27 17:28:22,233 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 94 flow [2024-06-27 17:28:22,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:22,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:22,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:28:22,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-27 17:28:22,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:22,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:22,236 INFO L85 PathProgramCache]: Analyzing trace with hash -2094359865, now seen corresponding path program 1 times [2024-06-27 17:28:22,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:22,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385133148] [2024-06-27 17:28:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:22,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:22,521 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 17:28:22,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:22,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385133148] [2024-06-27 17:28:22,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385133148] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:22,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:22,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 17:28:22,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369653193] [2024-06-27 17:28:22,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:22,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:28:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:22,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:28:22,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:28:22,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-06-27 17:28:22,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 17:28:22,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:22,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-06-27 17:28:22,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:23,178 INFO L124 PetriNetUnfolderBase]: 2637/4123 cut-off events. [2024-06-27 17:28:23,179 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-06-27 17:28:23,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8175 conditions, 4123 events. 2637/4123 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 28937 event pairs, 755 based on Foata normal form. 0/3990 useless extension candidates. Maximal degree in co-relation 8165. Up to 2357 conditions per place. [2024-06-27 17:28:23,203 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 33 selfloop transitions, 3 changer transitions 45/98 dead transitions. [2024-06-27 17:28:23,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 386 flow [2024-06-27 17:28:23,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 17:28:23,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 17:28:23,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 251 transitions. [2024-06-27 17:28:23,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6536458333333334 [2024-06-27 17:28:23,212 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 8 states and 251 transitions. [2024-06-27 17:28:23,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 386 flow [2024-06-27 17:28:23,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 98 transitions, 370 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-06-27 17:28:23,216 INFO L231 Difference]: Finished difference. Result has 62 places, 42 transitions, 123 flow [2024-06-27 17:28:23,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2024-06-27 17:28:23,218 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 6 predicate places. [2024-06-27 17:28:23,218 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 42 transitions, 123 flow [2024-06-27 17:28:23,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 17:28:23,219 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:23,219 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:28:23,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-27 17:28:23,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:23,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:23,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1385872184, now seen corresponding path program 1 times [2024-06-27 17:28:23,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:23,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161251268] [2024-06-27 17:28:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:23,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:23,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:28:23,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:23,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161251268] [2024-06-27 17:28:23,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161251268] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:23,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:23,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 17:28:23,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584646338] [2024-06-27 17:28:23,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:23,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:28:23,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:28:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:28:23,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-06-27 17:28:23,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 42 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 17:28:23,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:23,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-06-27 17:28:23,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:24,276 INFO L124 PetriNetUnfolderBase]: 3464/5649 cut-off events. [2024-06-27 17:28:24,277 INFO L125 PetriNetUnfolderBase]: For 2520/2520 co-relation queries the response was YES. [2024-06-27 17:28:24,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12709 conditions, 5649 events. 3464/5649 cut-off events. For 2520/2520 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 38886 event pairs, 973 based on Foata normal form. 144/5654 useless extension candidates. Maximal degree in co-relation 12694. Up to 3527 conditions per place. [2024-06-27 17:28:24,332 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 36 selfloop transitions, 3 changer transitions 35/93 dead transitions. [2024-06-27 17:28:24,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 93 transitions, 389 flow [2024-06-27 17:28:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:28:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:28:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 223 transitions. [2024-06-27 17:28:24,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6636904761904762 [2024-06-27 17:28:24,335 INFO L175 Difference]: Start difference. First operand has 62 places, 42 transitions, 123 flow. Second operand 7 states and 223 transitions. [2024-06-27 17:28:24,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 93 transitions, 389 flow [2024-06-27 17:28:24,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 93 transitions, 378 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-06-27 17:28:24,377 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 151 flow [2024-06-27 17:28:24,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=151, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2024-06-27 17:28:24,378 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2024-06-27 17:28:24,378 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 151 flow [2024-06-27 17:28:24,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 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 17:28:24,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:24,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:28:24,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-27 17:28:24,379 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:24,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:24,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1178877898, now seen corresponding path program 1 times [2024-06-27 17:28:24,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:24,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446032037] [2024-06-27 17:28:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:24,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:25,155 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 17:28:25,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:25,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446032037] [2024-06-27 17:28:25,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446032037] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:25,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:25,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 17:28:25,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958274992] [2024-06-27 17:28:25,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:25,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:28:25,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:25,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:28:25,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:28:25,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-06-27 17:28:25,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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 17:28:25,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:25,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-06-27 17:28:25,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:27,145 INFO L124 PetriNetUnfolderBase]: 9457/14868 cut-off events. [2024-06-27 17:28:27,145 INFO L125 PetriNetUnfolderBase]: For 19046/19046 co-relation queries the response was YES. [2024-06-27 17:28:27,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40382 conditions, 14868 events. 9457/14868 cut-off events. For 19046/19046 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 113292 event pairs, 2458 based on Foata normal form. 352/15090 useless extension candidates. Maximal degree in co-relation 40363. Up to 6804 conditions per place. [2024-06-27 17:28:27,293 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 41 selfloop transitions, 14 changer transitions 51/120 dead transitions. [2024-06-27 17:28:27,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 120 transitions, 677 flow [2024-06-27 17:28:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:28:27,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:28:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 226 transitions. [2024-06-27 17:28:27,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6726190476190477 [2024-06-27 17:28:27,296 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 151 flow. Second operand 7 states and 226 transitions. [2024-06-27 17:28:27,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 120 transitions, 677 flow [2024-06-27 17:28:27,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 120 transitions, 660 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-06-27 17:28:27,378 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 326 flow [2024-06-27 17:28:27,378 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=326, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2024-06-27 17:28:27,379 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2024-06-27 17:28:27,379 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 326 flow [2024-06-27 17:28:27,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 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 17:28:27,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:27,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-27 17:28:27,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-06-27 17:28:27,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:27,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:27,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1506448802, now seen corresponding path program 2 times [2024-06-27 17:28:27,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:27,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040109624] [2024-06-27 17:28:27,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:27,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:27,523 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 17:28:27,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:27,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040109624] [2024-06-27 17:28:27,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040109624] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:27,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:27,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 17:28:27,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757726197] [2024-06-27 17:28:27,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:27,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:28:27,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:27,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:28:27,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:28:27,530 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-06-27 17:28:27,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 326 flow. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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 17:28:27,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:27,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-06-27 17:28:27,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:29,530 INFO L124 PetriNetUnfolderBase]: 9821/16481 cut-off events. [2024-06-27 17:28:29,530 INFO L125 PetriNetUnfolderBase]: For 44074/44434 co-relation queries the response was YES. [2024-06-27 17:28:29,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56036 conditions, 16481 events. 9821/16481 cut-off events. For 44074/44434 co-relation queries the response was YES. Maximal size of possible extension queue 1016. Compared 141623 event pairs, 3476 based on Foata normal form. 433/16161 useless extension candidates. Maximal degree in co-relation 56012. Up to 6135 conditions per place. [2024-06-27 17:28:29,683 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 47 selfloop transitions, 6 changer transitions 47/124 dead transitions. [2024-06-27 17:28:29,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 124 transitions, 902 flow [2024-06-27 17:28:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:28:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:28:29,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 222 transitions. [2024-06-27 17:28:29,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6607142857142857 [2024-06-27 17:28:29,686 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 326 flow. Second operand 7 states and 222 transitions. [2024-06-27 17:28:29,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 124 transitions, 902 flow [2024-06-27 17:28:29,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 124 transitions, 826 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-06-27 17:28:29,737 INFO L231 Difference]: Finished difference. Result has 74 places, 57 transitions, 322 flow [2024-06-27 17:28:29,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=322, PETRI_PLACES=74, PETRI_TRANSITIONS=57} [2024-06-27 17:28:29,740 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2024-06-27 17:28:29,740 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 57 transitions, 322 flow [2024-06-27 17:28:29,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 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 17:28:29,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:29,745 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 17:28:29,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-06-27 17:28:29,745 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:29,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash -92820313, now seen corresponding path program 1 times [2024-06-27 17:28:29,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:29,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611092923] [2024-06-27 17:28:29,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:29,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:30,199 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 17:28:30,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:30,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611092923] [2024-06-27 17:28:30,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611092923] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:30,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:30,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 17:28:30,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648527844] [2024-06-27 17:28:30,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:30,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-27 17:28:30,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:30,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-27 17:28:30,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-06-27 17:28:30,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-06-27 17:28:30,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 57 transitions, 322 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:30,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:30,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-06-27 17:28:30,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:32,282 INFO L124 PetriNetUnfolderBase]: 11593/19594 cut-off events. [2024-06-27 17:28:32,282 INFO L125 PetriNetUnfolderBase]: For 70067/70674 co-relation queries the response was YES. [2024-06-27 17:28:32,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65710 conditions, 19594 events. 11593/19594 cut-off events. For 70067/70674 co-relation queries the response was YES. Maximal size of possible extension queue 1272. Compared 171669 event pairs, 3462 based on Foata normal form. 655/19392 useless extension candidates. Maximal degree in co-relation 65682. Up to 11132 conditions per place. [2024-06-27 17:28:32,448 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 33 selfloop transitions, 4 changer transitions 35/103 dead transitions. [2024-06-27 17:28:32,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 103 transitions, 668 flow [2024-06-27 17:28:32,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:28:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:28:32,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2024-06-27 17:28:32,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2024-06-27 17:28:32,450 INFO L175 Difference]: Start difference. First operand has 74 places, 57 transitions, 322 flow. Second operand 7 states and 214 transitions. [2024-06-27 17:28:32,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 103 transitions, 668 flow [2024-06-27 17:28:33,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 103 transitions, 638 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-06-27 17:28:33,056 INFO L231 Difference]: Finished difference. Result has 76 places, 60 transitions, 354 flow [2024-06-27 17:28:33,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=354, PETRI_PLACES=76, PETRI_TRANSITIONS=60} [2024-06-27 17:28:33,057 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 20 predicate places. [2024-06-27 17:28:33,058 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 60 transitions, 354 flow [2024-06-27 17:28:33,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:33,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:33,058 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 17:28:33,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-06-27 17:28:33,059 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:33,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 319451581, now seen corresponding path program 1 times [2024-06-27 17:28:33,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:33,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863956243] [2024-06-27 17:28:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:33,626 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 17:28:33,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:33,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863956243] [2024-06-27 17:28:33,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863956243] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:33,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:33,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:28:33,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415584607] [2024-06-27 17:28:33,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:33,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:28:33,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:28:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:28:33,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-06-27 17:28:33,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 60 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:33,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:33,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-06-27 17:28:33,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:35,759 INFO L124 PetriNetUnfolderBase]: 10801/18578 cut-off events. [2024-06-27 17:28:35,759 INFO L125 PetriNetUnfolderBase]: For 71264/71723 co-relation queries the response was YES. [2024-06-27 17:28:35,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66683 conditions, 18578 events. 10801/18578 cut-off events. For 71264/71723 co-relation queries the response was YES. Maximal size of possible extension queue 1188. Compared 164755 event pairs, 1835 based on Foata normal form. 529/18352 useless extension candidates. Maximal degree in co-relation 66653. Up to 9299 conditions per place. [2024-06-27 17:28:35,897 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 41 selfloop transitions, 12 changer transitions 33/117 dead transitions. [2024-06-27 17:28:35,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 117 transitions, 842 flow [2024-06-27 17:28:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 17:28:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 17:28:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 245 transitions. [2024-06-27 17:28:35,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6380208333333334 [2024-06-27 17:28:35,901 INFO L175 Difference]: Start difference. First operand has 76 places, 60 transitions, 354 flow. Second operand 8 states and 245 transitions. [2024-06-27 17:28:35,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 117 transitions, 842 flow [2024-06-27 17:28:36,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 117 transitions, 826 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-06-27 17:28:36,143 INFO L231 Difference]: Finished difference. Result has 81 places, 66 transitions, 439 flow [2024-06-27 17:28:36,143 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=439, PETRI_PLACES=81, PETRI_TRANSITIONS=66} [2024-06-27 17:28:36,143 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 25 predicate places. [2024-06-27 17:28:36,144 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 66 transitions, 439 flow [2024-06-27 17:28:36,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:36,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:36,144 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 17:28:36,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-06-27 17:28:36,144 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:36,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:36,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1163836307, now seen corresponding path program 2 times [2024-06-27 17:28:36,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842740859] [2024-06-27 17:28:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:36,562 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 17:28:36,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:36,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842740859] [2024-06-27 17:28:36,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842740859] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:36,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:36,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:28:36,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498912885] [2024-06-27 17:28:36,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:36,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:28:36,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:36,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:28:36,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:28:36,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-06-27 17:28:36,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 66 transitions, 439 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:36,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:36,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-06-27 17:28:36,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:38,472 INFO L124 PetriNetUnfolderBase]: 10386/17793 cut-off events. [2024-06-27 17:28:38,472 INFO L125 PetriNetUnfolderBase]: For 84252/84992 co-relation queries the response was YES. [2024-06-27 17:28:38,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66968 conditions, 17793 events. 10386/17793 cut-off events. For 84252/84992 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 155211 event pairs, 2174 based on Foata normal form. 672/17758 useless extension candidates. Maximal degree in co-relation 66934. Up to 9183 conditions per place. [2024-06-27 17:28:38,617 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 38 selfloop transitions, 12 changer transitions 33/114 dead transitions. [2024-06-27 17:28:38,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 114 transitions, 875 flow [2024-06-27 17:28:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 17:28:38,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 17:28:38,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 242 transitions. [2024-06-27 17:28:38,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6302083333333334 [2024-06-27 17:28:38,619 INFO L175 Difference]: Start difference. First operand has 81 places, 66 transitions, 439 flow. Second operand 8 states and 242 transitions. [2024-06-27 17:28:38,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 114 transitions, 875 flow [2024-06-27 17:28:39,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 114 transitions, 824 flow, removed 20 selfloop flow, removed 5 redundant places. [2024-06-27 17:28:39,060 INFO L231 Difference]: Finished difference. Result has 84 places, 66 transitions, 452 flow [2024-06-27 17:28:39,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=452, PETRI_PLACES=84, PETRI_TRANSITIONS=66} [2024-06-27 17:28:39,061 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 28 predicate places. [2024-06-27 17:28:39,061 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 66 transitions, 452 flow [2024-06-27 17:28:39,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:39,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:39,062 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 17:28:39,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-06-27 17:28:39,062 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:39,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:39,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1215340427, now seen corresponding path program 1 times [2024-06-27 17:28:39,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:39,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737031529] [2024-06-27 17:28:39,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:39,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:39,913 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 17:28:39,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:39,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737031529] [2024-06-27 17:28:39,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737031529] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:39,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:39,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:28:39,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753993539] [2024-06-27 17:28:39,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:39,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:28:39,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:39,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:28:39,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:28:39,944 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2024-06-27 17:28:39,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 66 transitions, 452 flow. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 17:28:39,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:39,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2024-06-27 17:28:39,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:42,662 INFO L124 PetriNetUnfolderBase]: 14584/23484 cut-off events. [2024-06-27 17:28:42,662 INFO L125 PetriNetUnfolderBase]: For 104796/104796 co-relation queries the response was YES. [2024-06-27 17:28:42,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91028 conditions, 23484 events. 14584/23484 cut-off events. For 104796/104796 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 192946 event pairs, 1339 based on Foata normal form. 456/23901 useless extension candidates. Maximal degree in co-relation 90992. Up to 9376 conditions per place. [2024-06-27 17:28:42,808 INFO L140 encePairwiseOnDemand]: 34/48 looper letters, 85 selfloop transitions, 47 changer transitions 62/207 dead transitions. [2024-06-27 17:28:42,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 207 transitions, 1914 flow [2024-06-27 17:28:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-06-27 17:28:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-06-27 17:28:42,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2024-06-27 17:28:42,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2024-06-27 17:28:42,810 INFO L175 Difference]: Start difference. First operand has 84 places, 66 transitions, 452 flow. Second operand 10 states and 305 transitions. [2024-06-27 17:28:42,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 207 transitions, 1914 flow [2024-06-27 17:28:43,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 207 transitions, 1856 flow, removed 14 selfloop flow, removed 7 redundant places. [2024-06-27 17:28:43,267 INFO L231 Difference]: Finished difference. Result has 90 places, 102 transitions, 972 flow [2024-06-27 17:28:43,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=972, PETRI_PLACES=90, PETRI_TRANSITIONS=102} [2024-06-27 17:28:43,268 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 34 predicate places. [2024-06-27 17:28:43,268 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 102 transitions, 972 flow [2024-06-27 17:28:43,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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 17:28:43,269 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:43,269 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 17:28:43,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-06-27 17:28:43,269 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:43,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:43,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1413267965, now seen corresponding path program 2 times [2024-06-27 17:28:43,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:43,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612400255] [2024-06-27 17:28:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:43,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-27 17:28:43,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:43,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612400255] [2024-06-27 17:28:43,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612400255] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:43,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:43,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-27 17:28:43,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340537368] [2024-06-27 17:28:43,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:43,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-27 17:28:43,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:43,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-27 17:28:43,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-06-27 17:28:43,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-06-27 17:28:43,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 102 transitions, 972 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:43,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:43,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-06-27 17:28:43,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:47,840 INFO L124 PetriNetUnfolderBase]: 28471/43148 cut-off events. [2024-06-27 17:28:47,840 INFO L125 PetriNetUnfolderBase]: For 220118/230048 co-relation queries the response was YES. [2024-06-27 17:28:48,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162875 conditions, 43148 events. 28471/43148 cut-off events. For 220118/230048 co-relation queries the response was YES. Maximal size of possible extension queue 2168. Compared 341807 event pairs, 4791 based on Foata normal form. 3396/45253 useless extension candidates. Maximal degree in co-relation 162835. Up to 22310 conditions per place. [2024-06-27 17:28:48,302 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 98 selfloop transitions, 6 changer transitions 0/156 dead transitions. [2024-06-27 17:28:48,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 156 transitions, 1638 flow [2024-06-27 17:28:48,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-27 17:28:48,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-27 17:28:48,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions. [2024-06-27 17:28:48,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6927083333333334 [2024-06-27 17:28:48,304 INFO L175 Difference]: Start difference. First operand has 90 places, 102 transitions, 972 flow. Second operand 4 states and 133 transitions. [2024-06-27 17:28:48,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 156 transitions, 1638 flow [2024-06-27 17:28:48,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 156 transitions, 1558 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-06-27 17:28:48,915 INFO L231 Difference]: Finished difference. Result has 86 places, 107 transitions, 950 flow [2024-06-27 17:28:48,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=950, PETRI_PLACES=86, PETRI_TRANSITIONS=107} [2024-06-27 17:28:48,916 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 30 predicate places. [2024-06-27 17:28:48,916 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 107 transitions, 950 flow [2024-06-27 17:28:48,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:48,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:48,917 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, 1, 1] [2024-06-27 17:28:48,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-06-27 17:28:48,917 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:48,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:48,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1141475946, now seen corresponding path program 1 times [2024-06-27 17:28:48,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:48,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466239135] [2024-06-27 17:28:48,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:48,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:49,044 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 17:28:49,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:49,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466239135] [2024-06-27 17:28:49,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466239135] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:49,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:49,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-06-27 17:28:49,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301269014] [2024-06-27 17:28:49,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:49,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:28:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:49,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:28:49,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:28:49,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 48 [2024-06-27 17:28:49,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 107 transitions, 950 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 17:28:49,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:49,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 48 [2024-06-27 17:28:49,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:28:54,213 INFO L124 PetriNetUnfolderBase]: 28890/47993 cut-off events. [2024-06-27 17:28:54,213 INFO L125 PetriNetUnfolderBase]: For 205136/208882 co-relation queries the response was YES. [2024-06-27 17:28:54,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184499 conditions, 47993 events. 28890/47993 cut-off events. For 205136/208882 co-relation queries the response was YES. Maximal size of possible extension queue 2604. Compared 445946 event pairs, 11078 based on Foata normal form. 2244/45992 useless extension candidates. Maximal degree in co-relation 184460. Up to 16217 conditions per place. [2024-06-27 17:28:54,671 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 115 selfloop transitions, 20 changer transitions 6/184 dead transitions. [2024-06-27 17:28:54,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 184 transitions, 1840 flow [2024-06-27 17:28:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-27 17:28:54,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-27 17:28:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 220 transitions. [2024-06-27 17:28:54,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-06-27 17:28:54,673 INFO L175 Difference]: Start difference. First operand has 86 places, 107 transitions, 950 flow. Second operand 7 states and 220 transitions. [2024-06-27 17:28:54,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 184 transitions, 1840 flow [2024-06-27 17:28:54,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 184 transitions, 1822 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-06-27 17:28:54,865 INFO L231 Difference]: Finished difference. Result has 96 places, 113 transitions, 1106 flow [2024-06-27 17:28:54,865 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1106, PETRI_PLACES=96, PETRI_TRANSITIONS=113} [2024-06-27 17:28:54,866 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 40 predicate places. [2024-06-27 17:28:54,866 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 113 transitions, 1106 flow [2024-06-27 17:28:54,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 17:28:54,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:28:54,866 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, 1, 1] [2024-06-27 17:28:54,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-06-27 17:28:54,866 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:28:54,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:28:54,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1796708024, now seen corresponding path program 1 times [2024-06-27 17:28:54,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:28:54,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16933833] [2024-06-27 17:28:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:28:54,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:28:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:28:55,506 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 17:28:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:28:55,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16933833] [2024-06-27 17:28:55,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16933833] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:28:55,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:28:55,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-06-27 17:28:55,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714172959] [2024-06-27 17:28:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:28:55,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-06-27 17:28:55,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:28:55,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-06-27 17:28:55,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-06-27 17:28:55,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-06-27 17:28:55,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 113 transitions, 1106 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:28:55,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:28:55,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-06-27 17:28:55,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:29:01,404 INFO L124 PetriNetUnfolderBase]: 31687/52535 cut-off events. [2024-06-27 17:29:01,405 INFO L125 PetriNetUnfolderBase]: For 272486/276188 co-relation queries the response was YES. [2024-06-27 17:29:01,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212303 conditions, 52535 events. 31687/52535 cut-off events. For 272486/276188 co-relation queries the response was YES. Maximal size of possible extension queue 2878. Compared 492797 event pairs, 10231 based on Foata normal form. 1586/49582 useless extension candidates. Maximal degree in co-relation 212259. Up to 30918 conditions per place. [2024-06-27 17:29:01,978 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 66 selfloop transitions, 20 changer transitions 17/162 dead transitions. [2024-06-27 17:29:01,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 162 transitions, 1706 flow [2024-06-27 17:29:01,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-06-27 17:29:01,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-06-27 17:29:01,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-06-27 17:29:01,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6276041666666666 [2024-06-27 17:29:01,980 INFO L175 Difference]: Start difference. First operand has 96 places, 113 transitions, 1106 flow. Second operand 8 states and 241 transitions. [2024-06-27 17:29:01,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 162 transitions, 1706 flow [2024-06-27 17:29:02,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 162 transitions, 1640 flow, removed 26 selfloop flow, removed 1 redundant places. [2024-06-27 17:29:02,893 INFO L231 Difference]: Finished difference. Result has 107 places, 123 transitions, 1291 flow [2024-06-27 17:29:02,894 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1291, PETRI_PLACES=107, PETRI_TRANSITIONS=123} [2024-06-27 17:29:02,894 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 51 predicate places. [2024-06-27 17:29:02,895 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 123 transitions, 1291 flow [2024-06-27 17:29:02,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-27 17:29:02,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:29:02,895 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, 1, 1] [2024-06-27 17:29:02,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-06-27 17:29:02,896 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:29:02,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:29:02,896 INFO L85 PathProgramCache]: Analyzing trace with hash 926877578, now seen corresponding path program 1 times [2024-06-27 17:29:02,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:29:02,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613655556] [2024-06-27 17:29:02,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:29:02,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:29:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:29:03,002 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 17:29:03,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:29:03,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613655556] [2024-06-27 17:29:03,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613655556] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:29:03,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:29:03,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-27 17:29:03,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790835694] [2024-06-27 17:29:03,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:29:03,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-27 17:29:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:29:03,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-27 17:29:03,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-27 17:29:03,012 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-06-27 17:29:03,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 123 transitions, 1291 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 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 17:29:03,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:29:03,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-06-27 17:29:03,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-27 17:29:09,680 INFO L124 PetriNetUnfolderBase]: 37510/56371 cut-off events. [2024-06-27 17:29:09,680 INFO L125 PetriNetUnfolderBase]: For 325279/338209 co-relation queries the response was YES. [2024-06-27 17:29:10,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224319 conditions, 56371 events. 37510/56371 cut-off events. For 325279/338209 co-relation queries the response was YES. Maximal size of possible extension queue 2825. Compared 451750 event pairs, 3772 based on Foata normal form. 4841/59798 useless extension candidates. Maximal degree in co-relation 224269. Up to 23545 conditions per place. [2024-06-27 17:29:10,249 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 117 selfloop transitions, 10 changer transitions 17/197 dead transitions. [2024-06-27 17:29:10,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 197 transitions, 2256 flow [2024-06-27 17:29:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-27 17:29:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-27 17:29:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2024-06-27 17:29:10,251 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-06-27 17:29:10,251 INFO L175 Difference]: Start difference. First operand has 107 places, 123 transitions, 1291 flow. Second operand 5 states and 170 transitions. [2024-06-27 17:29:10,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 197 transitions, 2256 flow [2024-06-27 17:29:10,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 197 transitions, 2182 flow, removed 32 selfloop flow, removed 1 redundant places. [2024-06-27 17:29:10,870 INFO L231 Difference]: Finished difference. Result has 112 places, 111 transitions, 1045 flow [2024-06-27 17:29:10,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1045, PETRI_PLACES=112, PETRI_TRANSITIONS=111} [2024-06-27 17:29:10,871 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 56 predicate places. [2024-06-27 17:29:10,871 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 111 transitions, 1045 flow [2024-06-27 17:29:10,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 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 17:29:10,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-27 17:29:10,872 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, 1, 1, 1, 1, 1] [2024-06-27 17:29:10,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-06-27 17:29:10,872 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-06-27 17:29:10,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-27 17:29:10,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1280550851, now seen corresponding path program 1 times [2024-06-27 17:29:10,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-27 17:29:10,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471211510] [2024-06-27 17:29:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-27 17:29:10,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-27 17:29:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-27 17:29:11,328 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 17:29:11,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-27 17:29:11,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471211510] [2024-06-27 17:29:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471211510] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-27 17:29:11,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-27 17:29:11,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-06-27 17:29:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144688364] [2024-06-27 17:29:11,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-27 17:29:11,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-06-27 17:29:11,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-27 17:29:11,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-06-27 17:29:11,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-06-27 17:29:11,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-06-27 17:29:11,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 111 transitions, 1045 flow. Second operand has 9 states, 9 states have (on average 23.88888888888889) internal successors, (215), 9 states have internal predecessors, (215), 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 17:29:11,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-27 17:29:11,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-06-27 17:29:11,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand