./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS --witnessprinter.witness.filename witness.graphml --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 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:13:38,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:13:38,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:13:38,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:13:38,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:13:38,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:13:38,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:13:38,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:13:38,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:13:38,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:13:38,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:13:38,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:13:38,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:13:38,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:13:38,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:13:38,384 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:13:38,385 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:13:38,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:13:38,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:13:38,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:13:38,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:13:38,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:13:38,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:13:38,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:13:38,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:13:38,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:13:38,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:13:38,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:13:38,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:13:38,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:13:38,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:13:38,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:13:38,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:13:38,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:13:38,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:13:38,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:13:38,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:13:38,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:13:38,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:13:38,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:13:38,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:13:38,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-23 02:13:38,451 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:13:38,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:13:38,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:13:38,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:13:38,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:13:38,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:13:38,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:13:38,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:13:38,472 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:13:38,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:13:38,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:13:38,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:13:38,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:13:38,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:13:38,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:13:38,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:13:38,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:13:38,474 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:13:38,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:13:38,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:13:38,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:13:38,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:13:38,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:13:38,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:13:38,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:13:38,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:13:38,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:13:38,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:13:38,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:13:38,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:13:38,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:13:38,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:13:38,478 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:13:38,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:13:38,479 INFO L138 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a8131f8693d82039b4018f716a17d0a3e1038ace11c7bb21b12bc911efac3c1 [2022-11-23 02:13:38,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:13:38,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:13:38,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:13:38,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:13:38,790 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:13:38,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2022-11-23 02:13:41,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:13:42,145 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:13:42,146 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i [2022-11-23 02:13:42,159 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/data/823ca6571/1b50798bdcc74e5e86741a3f4de073a5/FLAG90c43f4fb [2022-11-23 02:13:42,176 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/data/823ca6571/1b50798bdcc74e5e86741a3f4de073a5 [2022-11-23 02:13:42,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:13:42,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:13:42,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:13:42,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:13:42,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:13:42,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3925b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42, skipping insertion in model container [2022-11-23 02:13:42,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,202 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:13:42,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:13:42,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i[949,962] [2022-11-23 02:13:42,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:13:42,713 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:13:42,728 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/sv-benchmarks/c/pthread-wmm/mix053_tso.oepc.i[949,962] [2022-11-23 02:13:42,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:13:42,859 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:13:42,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42 WrapperNode [2022-11-23 02:13:42,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:13:42,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:13:42,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:13:42,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:13:42,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,935 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 158 [2022-11-23 02:13:42,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:13:42,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:13:42,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:13:42,936 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:13:42,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,965 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:13:42,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:13:42,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:13:42,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:13:42,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (1/1) ... [2022-11-23 02:13:42,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:13:42,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:13:43,003 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:13:43,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:13:43,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:13:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-23 02:13:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:13:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:13:43,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:13:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-23 02:13:43,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-23 02:13:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-23 02:13:43,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-23 02:13:43,049 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-23 02:13:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-23 02:13:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-23 02:13:43,050 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-23 02:13:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:13:43,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-23 02:13:43,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:13:43,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:13:43,053 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 02:13:43,221 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:13:43,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:13:43,617 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:13:43,881 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:13:43,881 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:13:43,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:43 BoogieIcfgContainer [2022-11-23 02:13:43,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:13:43,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:13:43,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:13:43,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:13:43,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:13:42" (1/3) ... [2022-11-23 02:13:43,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565f7aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:43, skipping insertion in model container [2022-11-23 02:13:43,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:42" (2/3) ... [2022-11-23 02:13:43,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565f7aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:43, skipping insertion in model container [2022-11-23 02:13:43,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:43" (3/3) ... [2022-11-23 02:13:43,893 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053_tso.oepc.i [2022-11-23 02:13:43,903 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 02:13:43,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:13:43,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:13:43,915 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 02:13:44,025 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-23 02:13:44,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 134 transitions, 288 flow [2022-11-23 02:13:44,192 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-11-23 02:13:44,194 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:13:44,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-23 02:13:44,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 134 transitions, 288 flow [2022-11-23 02:13:44,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 130 transitions, 272 flow [2022-11-23 02:13:44,220 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 02:13:44,241 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 130 transitions, 272 flow [2022-11-23 02:13:44,244 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 130 transitions, 272 flow [2022-11-23 02:13:44,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 130 transitions, 272 flow [2022-11-23 02:13:44,290 INFO L130 PetriNetUnfolder]: 2/130 cut-off events. [2022-11-23 02:13:44,290 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:13:44,291 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 130 events. 2/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 68 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-11-23 02:13:44,293 INFO L119 LiptonReduction]: Number of co-enabled transitions 3106 [2022-11-23 02:13:49,607 INFO L134 LiptonReduction]: Checked pairs total: 7941 [2022-11-23 02:13:49,607 INFO L136 LiptonReduction]: Total number of compositions: 113 [2022-11-23 02:13:49,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:13:49,630 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=LoopsAndPotentialCycles, 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;@136eddba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:13:49,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-23 02:13:49,635 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-11-23 02:13:49,636 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 02:13:49,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:13:49,637 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:13:49,637 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:13:49,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:13:49,643 INFO L85 PathProgramCache]: Analyzing trace with hash -156293302, now seen corresponding path program 1 times [2022-11-23 02:13:49,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:13:49,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393717448] [2022-11-23 02:13:49,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:13:49,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:13:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:13:50,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:13:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:13:50,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393717448] [2022-11-23 02:13:50,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393717448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:13:50,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:13:50,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:13:50,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188791488] [2022-11-23 02:13:50,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:13:50,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 02:13:50,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:13:50,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:13:50,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:13:50,221 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 247 [2022-11-23 02:13:50,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2022-11-23 02:13:50,227 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:13:50,227 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 247 [2022-11-23 02:13:50,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:13:51,177 INFO L130 PetriNetUnfolder]: 3415/4881 cut-off events. [2022-11-23 02:13:51,178 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2022-11-23 02:13:51,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9709 conditions, 4881 events. 3415/4881 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 25273 event pairs, 937 based on Foata normal form. 0/4673 useless extension candidates. Maximal degree in co-relation 9697. Up to 3703 conditions per place. [2022-11-23 02:13:51,219 INFO L137 encePairwiseOnDemand]: 243/247 looper letters, 35 selfloop transitions, 2 changer transitions 2/43 dead transitions. [2022-11-23 02:13:51,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 179 flow [2022-11-23 02:13:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:13:51,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 02:13:51,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2022-11-23 02:13:51,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2022-11-23 02:13:51,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2022-11-23 02:13:51,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2022-11-23 02:13:51,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:13:51,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2022-11-23 02:13:51,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 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) [2022-11-23 02:13:51,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 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) [2022-11-23 02:13:51,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 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) [2022-11-23 02:13:51,278 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 72 flow. Second operand 3 states and 399 transitions. [2022-11-23 02:13:51,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 179 flow [2022-11-23 02:13:51,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-23 02:13:51,288 INFO L231 Difference]: Finished difference. Result has 39 places, 27 transitions, 66 flow [2022-11-23 02:13:51,290 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=39, PETRI_TRANSITIONS=27} [2022-11-23 02:13:51,295 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2022-11-23 02:13:51,295 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 27 transitions, 66 flow [2022-11-23 02:13:51,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2022-11-23 02:13:51,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:13:51,297 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:13:51,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:13:51,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:13:51,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:13:51,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1424607206, now seen corresponding path program 1 times [2022-11-23 02:13:51,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:13:51,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716183057] [2022-11-23 02:13:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:13:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:13:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:13:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:13:51,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:13:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716183057] [2022-11-23 02:13:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716183057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:13:51,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:13:51,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 02:13:51,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810774427] [2022-11-23 02:13:51,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:13:51,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:13:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:13:51,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:13:51,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:13:51,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 247 [2022-11-23 02:13:51,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-11-23 02:13:51,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:13:51,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 247 [2022-11-23 02:13:51,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:13:52,765 INFO L130 PetriNetUnfolder]: 4247/6160 cut-off events. [2022-11-23 02:13:52,766 INFO L131 PetriNetUnfolder]: For 398/398 co-relation queries the response was YES. [2022-11-23 02:13:52,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12622 conditions, 6160 events. 4247/6160 cut-off events. For 398/398 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 34330 event pairs, 871 based on Foata normal form. 256/6402 useless extension candidates. Maximal degree in co-relation 12612. Up to 4783 conditions per place. [2022-11-23 02:13:52,801 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 38 selfloop transitions, 3 changer transitions 22/66 dead transitions. [2022-11-23 02:13:52,801 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 66 transitions, 282 flow [2022-11-23 02:13:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:13:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:13:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 645 transitions. [2022-11-23 02:13:52,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5222672064777328 [2022-11-23 02:13:52,804 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 645 transitions. [2022-11-23 02:13:52,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 645 transitions. [2022-11-23 02:13:52,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:13:52,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 645 transitions. [2022-11-23 02:13:52,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 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) [2022-11-23 02:13:52,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:13:52,811 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:13:52,811 INFO L175 Difference]: Start difference. First operand has 39 places, 27 transitions, 66 flow. Second operand 5 states and 645 transitions. [2022-11-23 02:13:52,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 66 transitions, 282 flow [2022-11-23 02:13:52,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 66 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-23 02:13:52,815 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 89 flow [2022-11-23 02:13:52,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=89, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2022-11-23 02:13:52,819 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2022-11-23 02:13:52,819 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 89 flow [2022-11-23 02:13:52,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-11-23 02:13:52,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:13:52,821 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:13:52,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:13:52,822 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:13:52,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:13:52,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1213134087, now seen corresponding path program 1 times [2022-11-23 02:13:52,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:13:52,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108908111] [2022-11-23 02:13:52,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:13:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:13:52,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:13:53,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:13:53,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:13:53,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108908111] [2022-11-23 02:13:53,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108908111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:13:53,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:13:53,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:13:53,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133606505] [2022-11-23 02:13:53,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:13:53,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:13:53,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:13:53,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:13:53,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:13:53,444 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2022-11-23 02:13:53,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2022-11-23 02:13:53,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:13:53,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2022-11-23 02:13:53,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:13:54,570 INFO L130 PetriNetUnfolder]: 4782/6891 cut-off events. [2022-11-23 02:13:54,570 INFO L131 PetriNetUnfolder]: For 2191/2191 co-relation queries the response was YES. [2022-11-23 02:13:54,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15356 conditions, 6891 events. 4782/6891 cut-off events. For 2191/2191 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 36486 event pairs, 1852 based on Foata normal form. 288/7167 useless extension candidates. Maximal degree in co-relation 15343. Up to 5486 conditions per place. [2022-11-23 02:13:54,627 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 37 selfloop transitions, 3 changer transitions 21/65 dead transitions. [2022-11-23 02:13:54,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 65 transitions, 304 flow [2022-11-23 02:13:54,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:13:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:13:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 646 transitions. [2022-11-23 02:13:54,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5230769230769231 [2022-11-23 02:13:54,630 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 646 transitions. [2022-11-23 02:13:54,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 646 transitions. [2022-11-23 02:13:54,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:13:54,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 646 transitions. [2022-11-23 02:13:54,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.2) internal successors, (646), 5 states have internal predecessors, (646), 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) [2022-11-23 02:13:54,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:13:54,636 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:13:54,637 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 89 flow. Second operand 5 states and 646 transitions. [2022-11-23 02:13:54,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 65 transitions, 304 flow [2022-11-23 02:13:54,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 65 transitions, 298 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-23 02:13:54,643 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 111 flow [2022-11-23 02:13:54,643 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=111, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2022-11-23 02:13:54,644 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2022-11-23 02:13:54,644 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 111 flow [2022-11-23 02:13:54,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.6) internal successors, (598), 5 states have internal predecessors, (598), 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) [2022-11-23 02:13:54,645 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:13:54,645 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:13:54,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 02:13:54,646 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:13:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:13:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1835383019, now seen corresponding path program 1 times [2022-11-23 02:13:54,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:13:54,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247512910] [2022-11-23 02:13:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:13:54,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:13:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:13:55,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:13:55,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:13:55,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247512910] [2022-11-23 02:13:55,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247512910] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:13:55,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:13:55,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:13:55,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419048729] [2022-11-23 02:13:55,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:13:55,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:13:55,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:13:55,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:13:55,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:13:55,155 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2022-11-23 02:13:55,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 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) [2022-11-23 02:13:55,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:13:55,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2022-11-23 02:13:55,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:13:56,441 INFO L130 PetriNetUnfolder]: 4697/6896 cut-off events. [2022-11-23 02:13:56,442 INFO L131 PetriNetUnfolder]: For 4379/4379 co-relation queries the response was YES. [2022-11-23 02:13:56,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17149 conditions, 6896 events. 4697/6896 cut-off events. For 4379/4379 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 37922 event pairs, 868 based on Foata normal form. 200/7080 useless extension candidates. Maximal degree in co-relation 17133. Up to 4698 conditions per place. [2022-11-23 02:13:56,515 INFO L137 encePairwiseOnDemand]: 239/247 looper letters, 47 selfloop transitions, 8 changer transitions 25/84 dead transitions. [2022-11-23 02:13:56,516 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 84 transitions, 415 flow [2022-11-23 02:13:56,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:13:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:13:56,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 885 transitions. [2022-11-23 02:13:56,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5118565644881434 [2022-11-23 02:13:56,526 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 885 transitions. [2022-11-23 02:13:56,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 885 transitions. [2022-11-23 02:13:56,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:13:56,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 885 transitions. [2022-11-23 02:13:56,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.42857142857143) internal successors, (885), 7 states have internal predecessors, (885), 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) [2022-11-23 02:13:56,533 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:13:56,534 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:13:56,535 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 111 flow. Second operand 7 states and 885 transitions. [2022-11-23 02:13:56,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 84 transitions, 415 flow [2022-11-23 02:13:56,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 84 transitions, 408 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-11-23 02:13:56,547 INFO L231 Difference]: Finished difference. Result has 52 places, 35 transitions, 157 flow [2022-11-23 02:13:56,547 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=157, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2022-11-23 02:13:56,549 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2022-11-23 02:13:56,549 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 157 flow [2022-11-23 02:13:56,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.33333333333333) internal successors, (704), 6 states have internal predecessors, (704), 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) [2022-11-23 02:13:56,551 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:13:56,551 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:13:56,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 02:13:56,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:13:56,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:13:56,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1837747079, now seen corresponding path program 2 times [2022-11-23 02:13:56,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:13:56,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316516915] [2022-11-23 02:13:56,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:13:56,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:13:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:13:57,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:13:57,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:13:57,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316516915] [2022-11-23 02:13:57,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316516915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:13:57,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:13:57,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:13:57,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729276346] [2022-11-23 02:13:57,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:13:57,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:13:57,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:13:57,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:13:57,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:13:57,178 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2022-11-23 02:13:57,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 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) [2022-11-23 02:13:57,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:13:57,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2022-11-23 02:13:57,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:13:58,395 INFO L130 PetriNetUnfolder]: 4641/6686 cut-off events. [2022-11-23 02:13:58,396 INFO L131 PetriNetUnfolder]: For 11460/11476 co-relation queries the response was YES. [2022-11-23 02:13:58,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20039 conditions, 6686 events. 4641/6686 cut-off events. For 11460/11476 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 34972 event pairs, 1352 based on Foata normal form. 212/6882 useless extension candidates. Maximal degree in co-relation 20019. Up to 4690 conditions per place. [2022-11-23 02:13:58,449 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 48 selfloop transitions, 10 changer transitions 25/87 dead transitions. [2022-11-23 02:13:58,450 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 521 flow [2022-11-23 02:13:58,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:13:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:13:58,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2022-11-23 02:13:58,453 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5199537304800462 [2022-11-23 02:13:58,453 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2022-11-23 02:13:58,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2022-11-23 02:13:58,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:13:58,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2022-11-23 02:13:58,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 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) [2022-11-23 02:13:58,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:13:58,460 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:13:58,460 INFO L175 Difference]: Start difference. First operand has 52 places, 35 transitions, 157 flow. Second operand 7 states and 899 transitions. [2022-11-23 02:13:58,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 521 flow [2022-11-23 02:13:58,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 87 transitions, 502 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-11-23 02:13:58,493 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 207 flow [2022-11-23 02:13:58,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=207, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2022-11-23 02:13:58,496 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2022-11-23 02:13:58,496 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 207 flow [2022-11-23 02:13:58,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 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) [2022-11-23 02:13:58,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:13:58,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:13:58,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 02:13:58,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:13:58,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:13:58,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1835311905, now seen corresponding path program 1 times [2022-11-23 02:13:58,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:13:58,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983588384] [2022-11-23 02:13:58,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:13:58,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:13:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:13:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:13:59,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:13:59,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983588384] [2022-11-23 02:13:59,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983588384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:13:59,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:13:59,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:13:59,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321468500] [2022-11-23 02:13:59,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:13:59,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:13:59,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:13:59,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:13:59,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:13:59,217 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2022-11-23 02:13:59,218 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 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) [2022-11-23 02:13:59,218 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:13:59,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2022-11-23 02:13:59,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:00,530 INFO L130 PetriNetUnfolder]: 4748/6929 cut-off events. [2022-11-23 02:14:00,530 INFO L131 PetriNetUnfolder]: For 19703/19735 co-relation queries the response was YES. [2022-11-23 02:14:00,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22560 conditions, 6929 events. 4748/6929 cut-off events. For 19703/19735 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 38055 event pairs, 852 based on Foata normal form. 252/7173 useless extension candidates. Maximal degree in co-relation 22537. Up to 5287 conditions per place. [2022-11-23 02:14:00,603 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 54 selfloop transitions, 6 changer transitions 20/84 dead transitions. [2022-11-23 02:14:00,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 84 transitions, 549 flow [2022-11-23 02:14:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:00,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:00,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 774 transitions. [2022-11-23 02:14:00,607 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5222672064777328 [2022-11-23 02:14:00,607 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 774 transitions. [2022-11-23 02:14:00,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 774 transitions. [2022-11-23 02:14:00,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:00,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 774 transitions. [2022-11-23 02:14:00,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.0) internal successors, (774), 6 states have internal predecessors, (774), 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) [2022-11-23 02:14:00,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:00,615 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:00,615 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 207 flow. Second operand 6 states and 774 transitions. [2022-11-23 02:14:00,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 84 transitions, 549 flow [2022-11-23 02:14:00,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 84 transitions, 516 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:00,655 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 234 flow [2022-11-23 02:14:00,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2022-11-23 02:14:00,658 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2022-11-23 02:14:00,658 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 234 flow [2022-11-23 02:14:00,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.33333333333333) internal successors, (716), 6 states have internal predecessors, (716), 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) [2022-11-23 02:14:00,660 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:00,660 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:00,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 02:14:00,661 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:00,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1062386194, now seen corresponding path program 1 times [2022-11-23 02:14:00,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:00,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264693514] [2022-11-23 02:14:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:00,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:01,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:01,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:01,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264693514] [2022-11-23 02:14:01,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264693514] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:01,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:01,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:14:01,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392118536] [2022-11-23 02:14:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:01,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:14:01,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:01,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:14:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:14:01,285 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 247 [2022-11-23 02:14:01,286 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2022-11-23 02:14:01,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:01,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 247 [2022-11-23 02:14:01,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:02,558 INFO L130 PetriNetUnfolder]: 4698/6875 cut-off events. [2022-11-23 02:14:02,558 INFO L131 PetriNetUnfolder]: For 19370/19427 co-relation queries the response was YES. [2022-11-23 02:14:02,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23533 conditions, 6875 events. 4698/6875 cut-off events. For 19370/19427 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 37512 event pairs, 616 based on Foata normal form. 170/7037 useless extension candidates. Maximal degree in co-relation 23509. Up to 4809 conditions per place. [2022-11-23 02:14:02,626 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 54 selfloop transitions, 11 changer transitions 16/85 dead transitions. [2022-11-23 02:14:02,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 85 transitions, 592 flow [2022-11-23 02:14:02,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:02,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 773 transitions. [2022-11-23 02:14:02,629 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5215924426450742 [2022-11-23 02:14:02,629 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 773 transitions. [2022-11-23 02:14:02,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 773 transitions. [2022-11-23 02:14:02,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:02,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 773 transitions. [2022-11-23 02:14:02,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 128.83333333333334) internal successors, (773), 6 states have internal predecessors, (773), 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) [2022-11-23 02:14:02,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:02,636 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:02,636 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 234 flow. Second operand 6 states and 773 transitions. [2022-11-23 02:14:02,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 85 transitions, 592 flow [2022-11-23 02:14:02,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 85 transitions, 572 flow, removed 6 selfloop flow, removed 3 redundant places. [2022-11-23 02:14:02,688 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 279 flow [2022-11-23 02:14:02,689 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2022-11-23 02:14:02,689 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2022-11-23 02:14:02,689 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 279 flow [2022-11-23 02:14:02,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2022-11-23 02:14:02,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:02,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:02,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 02:14:02,691 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:02,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1138007284, now seen corresponding path program 2 times [2022-11-23 02:14:02,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:02,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771002582] [2022-11-23 02:14:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:03,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:03,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:03,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771002582] [2022-11-23 02:14:03,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771002582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:03,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:03,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:14:03,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43734276] [2022-11-23 02:14:03,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:03,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:14:03,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:03,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:14:03,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:14:03,362 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 247 [2022-11-23 02:14:03,363 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 279 flow. Second operand has 7 states, 7 states have (on average 118.14285714285714) internal successors, (827), 7 states have internal predecessors, (827), 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) [2022-11-23 02:14:03,363 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:03,364 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 247 [2022-11-23 02:14:03,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:04,468 INFO L130 PetriNetUnfolder]: 4520/6657 cut-off events. [2022-11-23 02:14:04,469 INFO L131 PetriNetUnfolder]: For 23854/23927 co-relation queries the response was YES. [2022-11-23 02:14:04,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24019 conditions, 6657 events. 4520/6657 cut-off events. For 23854/23927 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 36536 event pairs, 452 based on Foata normal form. 214/6863 useless extension candidates. Maximal degree in co-relation 23993. Up to 4729 conditions per place. [2022-11-23 02:14:04,536 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 57 selfloop transitions, 7 changer transitions 18/86 dead transitions. [2022-11-23 02:14:04,537 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 86 transitions, 637 flow [2022-11-23 02:14:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:04,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:04,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 765 transitions. [2022-11-23 02:14:04,539 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5161943319838057 [2022-11-23 02:14:04,540 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 765 transitions. [2022-11-23 02:14:04,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 765 transitions. [2022-11-23 02:14:04,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:04,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 765 transitions. [2022-11-23 02:14:04,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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) [2022-11-23 02:14:04,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:04,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:04,546 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 279 flow. Second operand 6 states and 765 transitions. [2022-11-23 02:14:04,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 86 transitions, 637 flow [2022-11-23 02:14:04,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 602 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:04,587 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 273 flow [2022-11-23 02:14:04,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=273, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2022-11-23 02:14:04,590 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2022-11-23 02:14:04,590 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 273 flow [2022-11-23 02:14:04,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 118.14285714285714) internal successors, (827), 7 states have internal predecessors, (827), 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) [2022-11-23 02:14:04,591 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:04,591 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:04,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 02:14:04,595 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1062316041, now seen corresponding path program 1 times [2022-11-23 02:14:04,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:04,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725542837] [2022-11-23 02:14:04,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:04,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:05,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:05,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:05,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725542837] [2022-11-23 02:14:05,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725542837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:05,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:05,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:14:05,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989636360] [2022-11-23 02:14:05,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:05,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:14:05,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:05,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:14:05,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:14:05,043 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 247 [2022-11-23 02:14:05,044 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 273 flow. Second operand has 7 states, 7 states have (on average 116.14285714285714) internal successors, (813), 7 states have internal predecessors, (813), 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) [2022-11-23 02:14:05,044 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:05,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 247 [2022-11-23 02:14:05,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:06,249 INFO L130 PetriNetUnfolder]: 4630/6775 cut-off events. [2022-11-23 02:14:06,249 INFO L131 PetriNetUnfolder]: For 24856/24953 co-relation queries the response was YES. [2022-11-23 02:14:06,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24578 conditions, 6775 events. 4630/6775 cut-off events. For 24856/24953 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 37006 event pairs, 856 based on Foata normal form. 214/6973 useless extension candidates. Maximal degree in co-relation 24551. Up to 4813 conditions per place. [2022-11-23 02:14:06,301 INFO L137 encePairwiseOnDemand]: 238/247 looper letters, 59 selfloop transitions, 14 changer transitions 10/87 dead transitions. [2022-11-23 02:14:06,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 87 transitions, 623 flow [2022-11-23 02:14:06,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:06,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 756 transitions. [2022-11-23 02:14:06,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5101214574898786 [2022-11-23 02:14:06,306 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 756 transitions. [2022-11-23 02:14:06,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 756 transitions. [2022-11-23 02:14:06,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:06,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 756 transitions. [2022-11-23 02:14:06,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 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) [2022-11-23 02:14:06,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:06,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:06,313 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 273 flow. Second operand 6 states and 756 transitions. [2022-11-23 02:14:06,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 87 transitions, 623 flow [2022-11-23 02:14:06,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 87 transitions, 604 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-11-23 02:14:06,351 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 333 flow [2022-11-23 02:14:06,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2022-11-23 02:14:06,353 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2022-11-23 02:14:06,353 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 333 flow [2022-11-23 02:14:06,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 116.14285714285714) internal successors, (813), 7 states have internal predecessors, (813), 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) [2022-11-23 02:14:06,356 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:06,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:06,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 02:14:06,358 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:06,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:06,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1135832541, now seen corresponding path program 2 times [2022-11-23 02:14:06,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:06,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107447177] [2022-11-23 02:14:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:06,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:06,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:06,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107447177] [2022-11-23 02:14:06,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107447177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:06,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:06,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:14:06,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168364958] [2022-11-23 02:14:06,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:06,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:14:06,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:06,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:14:06,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:14:06,922 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 247 [2022-11-23 02:14:06,923 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 333 flow. Second operand has 7 states, 7 states have (on average 118.14285714285714) internal successors, (827), 7 states have internal predecessors, (827), 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) [2022-11-23 02:14:06,923 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:06,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 247 [2022-11-23 02:14:06,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:08,011 INFO L130 PetriNetUnfolder]: 4682/6859 cut-off events. [2022-11-23 02:14:08,012 INFO L131 PetriNetUnfolder]: For 26342/26439 co-relation queries the response was YES. [2022-11-23 02:14:08,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26196 conditions, 6859 events. 4682/6859 cut-off events. For 26342/26439 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 37669 event pairs, 808 based on Foata normal form. 222/7065 useless extension candidates. Maximal degree in co-relation 26170. Up to 4833 conditions per place. [2022-11-23 02:14:08,051 INFO L137 encePairwiseOnDemand]: 238/247 looper letters, 60 selfloop transitions, 16 changer transitions 17/97 dead transitions. [2022-11-23 02:14:08,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 97 transitions, 759 flow [2022-11-23 02:14:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:14:08,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:14:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 892 transitions. [2022-11-23 02:14:08,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5159051474840949 [2022-11-23 02:14:08,055 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 892 transitions. [2022-11-23 02:14:08,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 892 transitions. [2022-11-23 02:14:08,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:08,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 892 transitions. [2022-11-23 02:14:08,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 127.42857142857143) internal successors, (892), 7 states have internal predecessors, (892), 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) [2022-11-23 02:14:08,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:14:08,061 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:14:08,061 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 333 flow. Second operand 7 states and 892 transitions. [2022-11-23 02:14:08,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 97 transitions, 759 flow [2022-11-23 02:14:08,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 708 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:08,089 INFO L231 Difference]: Finished difference. Result has 66 places, 51 transitions, 373 flow [2022-11-23 02:14:08,089 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=373, PETRI_PLACES=66, PETRI_TRANSITIONS=51} [2022-11-23 02:14:08,090 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 24 predicate places. [2022-11-23 02:14:08,090 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 51 transitions, 373 flow [2022-11-23 02:14:08,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 118.14285714285714) internal successors, (827), 7 states have internal predecessors, (827), 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) [2022-11-23 02:14:08,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:08,091 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:08,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 02:14:08,091 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:08,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:08,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1135601901, now seen corresponding path program 3 times [2022-11-23 02:14:08,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:08,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989920140] [2022-11-23 02:14:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:08,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:08,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:08,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989920140] [2022-11-23 02:14:08,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989920140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:08,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:08,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:14:08,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511336678] [2022-11-23 02:14:08,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:08,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:14:08,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:08,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:14:08,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:14:08,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2022-11-23 02:14:08,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 51 transitions, 373 flow. Second operand has 7 states, 7 states have (on average 117.14285714285714) internal successors, (820), 7 states have internal predecessors, (820), 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) [2022-11-23 02:14:08,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:08,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2022-11-23 02:14:08,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:09,569 INFO L130 PetriNetUnfolder]: 5230/7517 cut-off events. [2022-11-23 02:14:09,569 INFO L131 PetriNetUnfolder]: For 40380/40452 co-relation queries the response was YES. [2022-11-23 02:14:09,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32382 conditions, 7517 events. 5230/7517 cut-off events. For 40380/40452 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 39721 event pairs, 3150 based on Foata normal form. 216/7681 useless extension candidates. Maximal degree in co-relation 32354. Up to 5595 conditions per place. [2022-11-23 02:14:09,611 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 45 selfloop transitions, 17 changer transitions 18/84 dead transitions. [2022-11-23 02:14:09,612 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 84 transitions, 757 flow [2022-11-23 02:14:09,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:09,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:09,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 750 transitions. [2022-11-23 02:14:09,615 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5060728744939271 [2022-11-23 02:14:09,615 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 750 transitions. [2022-11-23 02:14:09,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 750 transitions. [2022-11-23 02:14:09,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:09,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 750 transitions. [2022-11-23 02:14:09,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.0) internal successors, (750), 6 states have internal predecessors, (750), 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) [2022-11-23 02:14:09,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:09,621 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:09,621 INFO L175 Difference]: Start difference. First operand has 66 places, 51 transitions, 373 flow. Second operand 6 states and 750 transitions. [2022-11-23 02:14:09,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 84 transitions, 757 flow [2022-11-23 02:14:09,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 84 transitions, 706 flow, removed 13 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:09,661 INFO L231 Difference]: Finished difference. Result has 68 places, 54 transitions, 438 flow [2022-11-23 02:14:09,662 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=68, PETRI_TRANSITIONS=54} [2022-11-23 02:14:09,662 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2022-11-23 02:14:09,662 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 54 transitions, 438 flow [2022-11-23 02:14:09,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 117.14285714285714) internal successors, (820), 7 states have internal predecessors, (820), 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) [2022-11-23 02:14:09,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:09,663 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:09,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 02:14:09,663 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1757940082, now seen corresponding path program 1 times [2022-11-23 02:14:09,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:09,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593036413] [2022-11-23 02:14:09,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:09,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:10,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:10,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593036413] [2022-11-23 02:14:10,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593036413] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:10,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:10,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:14:10,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571478542] [2022-11-23 02:14:10,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:10,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:14:10,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:10,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:14:10,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:14:10,344 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2022-11-23 02:14:10,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 54 transitions, 438 flow. Second operand has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2022-11-23 02:14:10,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:10,346 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2022-11-23 02:14:10,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:11,482 INFO L130 PetriNetUnfolder]: 5344/7809 cut-off events. [2022-11-23 02:14:11,482 INFO L131 PetriNetUnfolder]: For 56728/56817 co-relation queries the response was YES. [2022-11-23 02:14:11,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36124 conditions, 7809 events. 5344/7809 cut-off events. For 56728/56817 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 43506 event pairs, 712 based on Foata normal form. 178/7979 useless extension candidates. Maximal degree in co-relation 36094. Up to 5513 conditions per place. [2022-11-23 02:14:11,521 INFO L137 encePairwiseOnDemand]: 238/247 looper letters, 65 selfloop transitions, 19 changer transitions 16/104 dead transitions. [2022-11-23 02:14:11,522 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 104 transitions, 930 flow [2022-11-23 02:14:11,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:14:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:14:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 886 transitions. [2022-11-23 02:14:11,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5124349334875651 [2022-11-23 02:14:11,526 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 886 transitions. [2022-11-23 02:14:11,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 886 transitions. [2022-11-23 02:14:11,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:11,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 886 transitions. [2022-11-23 02:14:11,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 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) [2022-11-23 02:14:11,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:14:11,533 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:14:11,533 INFO L175 Difference]: Start difference. First operand has 68 places, 54 transitions, 438 flow. Second operand 7 states and 886 transitions. [2022-11-23 02:14:11,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 104 transitions, 930 flow [2022-11-23 02:14:11,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 104 transitions, 836 flow, removed 38 selfloop flow, removed 5 redundant places. [2022-11-23 02:14:11,600 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 480 flow [2022-11-23 02:14:11,600 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=480, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2022-11-23 02:14:11,600 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2022-11-23 02:14:11,601 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 480 flow [2022-11-23 02:14:11,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2022-11-23 02:14:11,601 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:11,601 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:11,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 02:14:11,602 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:11,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:11,602 INFO L85 PathProgramCache]: Analyzing trace with hash -918504736, now seen corresponding path program 2 times [2022-11-23 02:14:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:11,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425558415] [2022-11-23 02:14:11,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:11,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:11,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:12,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:12,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425558415] [2022-11-23 02:14:12,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425558415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:12,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:12,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:14:12,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308191689] [2022-11-23 02:14:12,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:12,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:14:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:12,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:14:12,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:14:12,187 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2022-11-23 02:14:12,188 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 480 flow. Second operand has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2022-11-23 02:14:12,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:12,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2022-11-23 02:14:12,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:13,587 INFO L130 PetriNetUnfolder]: 5492/8053 cut-off events. [2022-11-23 02:14:13,587 INFO L131 PetriNetUnfolder]: For 50638/50727 co-relation queries the response was YES. [2022-11-23 02:14:13,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35859 conditions, 8053 events. 5492/8053 cut-off events. For 50638/50727 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 45358 event pairs, 712 based on Foata normal form. 162/8207 useless extension candidates. Maximal degree in co-relation 35829. Up to 5709 conditions per place. [2022-11-23 02:14:13,659 INFO L137 encePairwiseOnDemand]: 238/247 looper letters, 69 selfloop transitions, 24 changer transitions 9/106 dead transitions. [2022-11-23 02:14:13,659 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 106 transitions, 1024 flow [2022-11-23 02:14:13,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:13,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 763 transitions. [2022-11-23 02:14:13,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5148448043184886 [2022-11-23 02:14:13,662 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 763 transitions. [2022-11-23 02:14:13,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 763 transitions. [2022-11-23 02:14:13,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:13,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 763 transitions. [2022-11-23 02:14:13,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 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) [2022-11-23 02:14:13,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:13,668 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:13,668 INFO L175 Difference]: Start difference. First operand has 70 places, 56 transitions, 480 flow. Second operand 6 states and 763 transitions. [2022-11-23 02:14:13,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 106 transitions, 1024 flow [2022-11-23 02:14:13,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 944 flow, removed 24 selfloop flow, removed 5 redundant places. [2022-11-23 02:14:13,786 INFO L231 Difference]: Finished difference. Result has 71 places, 66 transitions, 657 flow [2022-11-23 02:14:13,787 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=657, PETRI_PLACES=71, PETRI_TRANSITIONS=66} [2022-11-23 02:14:13,787 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 29 predicate places. [2022-11-23 02:14:13,788 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 657 flow [2022-11-23 02:14:13,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2022-11-23 02:14:13,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:13,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:13,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-23 02:14:13,789 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:13,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1427853644, now seen corresponding path program 3 times [2022-11-23 02:14:13,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:13,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293598491] [2022-11-23 02:14:13,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:13,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:15,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:15,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293598491] [2022-11-23 02:14:15,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293598491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:15,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:15,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:14:15,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284340840] [2022-11-23 02:14:15,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:15,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:14:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:15,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:14:15,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:14:15,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 247 [2022-11-23 02:14:15,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 657 flow. Second operand has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2022-11-23 02:14:15,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:15,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 247 [2022-11-23 02:14:15,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:18,374 INFO L130 PetriNetUnfolder]: 15146/21001 cut-off events. [2022-11-23 02:14:18,374 INFO L131 PetriNetUnfolder]: For 138379/138379 co-relation queries the response was YES. [2022-11-23 02:14:18,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90586 conditions, 21001 events. 15146/21001 cut-off events. For 138379/138379 co-relation queries the response was YES. Maximal size of possible extension queue 748. Compared 116487 event pairs, 1525 based on Foata normal form. 488/21489 useless extension candidates. Maximal degree in co-relation 90555. Up to 12461 conditions per place. [2022-11-23 02:14:18,515 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 61 changer transitions 44/215 dead transitions. [2022-11-23 02:14:18,515 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 215 transitions, 2221 flow [2022-11-23 02:14:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 02:14:18,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 02:14:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1200 transitions. [2022-11-23 02:14:18,520 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48582995951417 [2022-11-23 02:14:18,521 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1200 transitions. [2022-11-23 02:14:18,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1200 transitions. [2022-11-23 02:14:18,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:18,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1200 transitions. [2022-11-23 02:14:18,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 120.0) internal successors, (1200), 10 states have internal predecessors, (1200), 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) [2022-11-23 02:14:18,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 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) [2022-11-23 02:14:18,531 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 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) [2022-11-23 02:14:18,531 INFO L175 Difference]: Start difference. First operand has 71 places, 66 transitions, 657 flow. Second operand 10 states and 1200 transitions. [2022-11-23 02:14:18,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 215 transitions, 2221 flow [2022-11-23 02:14:18,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 215 transitions, 2080 flow, removed 58 selfloop flow, removed 2 redundant places. [2022-11-23 02:14:18,990 INFO L231 Difference]: Finished difference. Result has 85 places, 113 transitions, 1424 flow [2022-11-23 02:14:18,990 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1424, PETRI_PLACES=85, PETRI_TRANSITIONS=113} [2022-11-23 02:14:18,991 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 43 predicate places. [2022-11-23 02:14:18,991 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 113 transitions, 1424 flow [2022-11-23 02:14:18,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.0) internal successors, (856), 8 states have internal predecessors, (856), 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) [2022-11-23 02:14:18,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:18,992 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:18,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-23 02:14:18,992 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:18,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:18,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1451848408, now seen corresponding path program 4 times [2022-11-23 02:14:18,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:18,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069017421] [2022-11-23 02:14:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:18,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:19,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:19,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069017421] [2022-11-23 02:14:19,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069017421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:19,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:19,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:14:19,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782139432] [2022-11-23 02:14:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:19,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:14:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:14:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:14:19,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 247 [2022-11-23 02:14:19,609 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 113 transitions, 1424 flow. Second operand has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2022-11-23 02:14:19,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:19,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 247 [2022-11-23 02:14:19,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:22,211 INFO L130 PetriNetUnfolder]: 12121/17376 cut-off events. [2022-11-23 02:14:22,211 INFO L131 PetriNetUnfolder]: For 217367/220347 co-relation queries the response was YES. [2022-11-23 02:14:22,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95742 conditions, 17376 events. 12121/17376 cut-off events. For 217367/220347 co-relation queries the response was YES. Maximal size of possible extension queue 869. Compared 104769 event pairs, 2102 based on Foata normal form. 1020/17827 useless extension candidates. Maximal degree in co-relation 95703. Up to 11658 conditions per place. [2022-11-23 02:14:22,404 INFO L137 encePairwiseOnDemand]: 239/247 looper letters, 94 selfloop transitions, 45 changer transitions 11/161 dead transitions. [2022-11-23 02:14:22,404 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 161 transitions, 2122 flow [2022-11-23 02:14:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 763 transitions. [2022-11-23 02:14:22,408 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5148448043184886 [2022-11-23 02:14:22,408 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 763 transitions. [2022-11-23 02:14:22,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 763 transitions. [2022-11-23 02:14:22,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:22,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 763 transitions. [2022-11-23 02:14:22,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.16666666666667) internal successors, (763), 6 states have internal predecessors, (763), 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) [2022-11-23 02:14:22,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:22,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:22,416 INFO L175 Difference]: Start difference. First operand has 85 places, 113 transitions, 1424 flow. Second operand 6 states and 763 transitions. [2022-11-23 02:14:22,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 161 transitions, 2122 flow [2022-11-23 02:14:23,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 161 transitions, 1922 flow, removed 97 selfloop flow, removed 3 redundant places. [2022-11-23 02:14:23,376 INFO L231 Difference]: Finished difference. Result has 86 places, 120 transitions, 1531 flow [2022-11-23 02:14:23,377 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1531, PETRI_PLACES=86, PETRI_TRANSITIONS=120} [2022-11-23 02:14:23,379 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 44 predicate places. [2022-11-23 02:14:23,379 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 120 transitions, 1531 flow [2022-11-23 02:14:23,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 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) [2022-11-23 02:14:23,381 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:23,381 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:23,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-23 02:14:23,381 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:23,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1494235680, now seen corresponding path program 1 times [2022-11-23 02:14:23,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:23,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866055442] [2022-11-23 02:14:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:23,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:23,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:23,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866055442] [2022-11-23 02:14:23,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866055442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:23,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:23,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:14:23,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640646840] [2022-11-23 02:14:23,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:23,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:14:23,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:23,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:14:23,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:14:23,581 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 247 [2022-11-23 02:14:23,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 120 transitions, 1531 flow. Second operand has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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) [2022-11-23 02:14:23,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:23,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 247 [2022-11-23 02:14:23,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:25,637 INFO L130 PetriNetUnfolder]: 8821/12856 cut-off events. [2022-11-23 02:14:25,637 INFO L131 PetriNetUnfolder]: For 199747/202927 co-relation queries the response was YES. [2022-11-23 02:14:25,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72347 conditions, 12856 events. 8821/12856 cut-off events. For 199747/202927 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 79116 event pairs, 1583 based on Foata normal form. 2513/14901 useless extension candidates. Maximal degree in co-relation 72306. Up to 8226 conditions per place. [2022-11-23 02:14:25,766 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 248 selfloop transitions, 10 changer transitions 0/273 dead transitions. [2022-11-23 02:14:25,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 273 transitions, 4046 flow [2022-11-23 02:14:25,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:14:25,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:14:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 620 transitions. [2022-11-23 02:14:25,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5020242914979757 [2022-11-23 02:14:25,770 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 620 transitions. [2022-11-23 02:14:25,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 620 transitions. [2022-11-23 02:14:25,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:25,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 620 transitions. [2022-11-23 02:14:25,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 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) [2022-11-23 02:14:25,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:14:25,775 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:14:25,775 INFO L175 Difference]: Start difference. First operand has 86 places, 120 transitions, 1531 flow. Second operand 5 states and 620 transitions. [2022-11-23 02:14:25,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 273 transitions, 4046 flow [2022-11-23 02:14:26,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 273 transitions, 3870 flow, removed 23 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:26,055 INFO L231 Difference]: Finished difference. Result has 88 places, 126 transitions, 1503 flow [2022-11-23 02:14:26,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1392, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1503, PETRI_PLACES=88, PETRI_TRANSITIONS=126} [2022-11-23 02:14:26,056 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 46 predicate places. [2022-11-23 02:14:26,056 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 126 transitions, 1503 flow [2022-11-23 02:14:26,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 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) [2022-11-23 02:14:26,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:26,057 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:26,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-23 02:14:26,057 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:26,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:26,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1224656120, now seen corresponding path program 1 times [2022-11-23 02:14:26,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:26,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464698833] [2022-11-23 02:14:26,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:26,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:26,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:27,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:27,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464698833] [2022-11-23 02:14:27,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464698833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:27,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:27,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:14:27,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99466117] [2022-11-23 02:14:27,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:27,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:14:27,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:27,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:14:27,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:14:27,383 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 247 [2022-11-23 02:14:27,384 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 126 transitions, 1503 flow. Second operand has 8 states, 8 states have (on average 107.125) internal successors, (857), 8 states have internal predecessors, (857), 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) [2022-11-23 02:14:27,384 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:27,384 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 247 [2022-11-23 02:14:27,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:31,177 INFO L130 PetriNetUnfolder]: 14967/21893 cut-off events. [2022-11-23 02:14:31,178 INFO L131 PetriNetUnfolder]: For 199700/199700 co-relation queries the response was YES. [2022-11-23 02:14:31,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123429 conditions, 21893 events. 14967/21893 cut-off events. For 199700/199700 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 136580 event pairs, 1666 based on Foata normal form. 481/22374 useless extension candidates. Maximal degree in co-relation 123386. Up to 8536 conditions per place. [2022-11-23 02:14:31,364 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 166 selfloop transitions, 93 changer transitions 75/334 dead transitions. [2022-11-23 02:14:31,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 334 transitions, 4140 flow [2022-11-23 02:14:31,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 02:14:31,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-23 02:14:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1312 transitions. [2022-11-23 02:14:31,369 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48288553551711444 [2022-11-23 02:14:31,369 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1312 transitions. [2022-11-23 02:14:31,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1312 transitions. [2022-11-23 02:14:31,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:31,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1312 transitions. [2022-11-23 02:14:31,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 119.27272727272727) internal successors, (1312), 11 states have internal predecessors, (1312), 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) [2022-11-23 02:14:31,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 247.0) internal successors, (2964), 12 states have internal predecessors, (2964), 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) [2022-11-23 02:14:31,379 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 247.0) internal successors, (2964), 12 states have internal predecessors, (2964), 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) [2022-11-23 02:14:31,379 INFO L175 Difference]: Start difference. First operand has 88 places, 126 transitions, 1503 flow. Second operand 11 states and 1312 transitions. [2022-11-23 02:14:31,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 334 transitions, 4140 flow [2022-11-23 02:14:31,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 334 transitions, 4116 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-11-23 02:14:31,708 INFO L231 Difference]: Finished difference. Result has 106 places, 168 transitions, 2526 flow [2022-11-23 02:14:31,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1494, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2526, PETRI_PLACES=106, PETRI_TRANSITIONS=168} [2022-11-23 02:14:31,709 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 64 predicate places. [2022-11-23 02:14:31,709 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 168 transitions, 2526 flow [2022-11-23 02:14:31,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.125) internal successors, (857), 8 states have internal predecessors, (857), 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) [2022-11-23 02:14:31,710 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:31,710 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:31,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-23 02:14:31,710 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:31,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1777798560, now seen corresponding path program 1 times [2022-11-23 02:14:31,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:31,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517451560] [2022-11-23 02:14:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:31,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:31,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:31,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:31,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517451560] [2022-11-23 02:14:31,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517451560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:31,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:31,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:14:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932793987] [2022-11-23 02:14:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:31,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:14:31,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:31,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:14:31,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:14:31,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 247 [2022-11-23 02:14:31,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 168 transitions, 2526 flow. Second operand has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 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) [2022-11-23 02:14:31,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:31,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 247 [2022-11-23 02:14:31,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:33,425 INFO L130 PetriNetUnfolder]: 5554/8724 cut-off events. [2022-11-23 02:14:33,425 INFO L131 PetriNetUnfolder]: For 171648/174125 co-relation queries the response was YES. [2022-11-23 02:14:33,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55204 conditions, 8724 events. 5554/8724 cut-off events. For 171648/174125 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 56764 event pairs, 649 based on Foata normal form. 1820/10299 useless extension candidates. Maximal degree in co-relation 55151. Up to 3585 conditions per place. [2022-11-23 02:14:33,519 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 322 selfloop transitions, 14 changer transitions 28/393 dead transitions. [2022-11-23 02:14:33,520 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 393 transitions, 6998 flow [2022-11-23 02:14:33,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:33,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:33,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 746 transitions. [2022-11-23 02:14:33,522 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5033738191632928 [2022-11-23 02:14:33,522 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 746 transitions. [2022-11-23 02:14:33,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 746 transitions. [2022-11-23 02:14:33,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:33,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 746 transitions. [2022-11-23 02:14:33,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.33333333333333) internal successors, (746), 6 states have internal predecessors, (746), 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) [2022-11-23 02:14:33,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:33,527 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:33,528 INFO L175 Difference]: Start difference. First operand has 106 places, 168 transitions, 2526 flow. Second operand 6 states and 746 transitions. [2022-11-23 02:14:33,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 393 transitions, 6998 flow [2022-11-23 02:14:33,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 393 transitions, 6907 flow, removed 45 selfloop flow, removed 4 redundant places. [2022-11-23 02:14:33,863 INFO L231 Difference]: Finished difference. Result has 105 places, 157 transitions, 2293 flow [2022-11-23 02:14:33,863 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2137, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2293, PETRI_PLACES=105, PETRI_TRANSITIONS=157} [2022-11-23 02:14:33,864 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 63 predicate places. [2022-11-23 02:14:33,864 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 157 transitions, 2293 flow [2022-11-23 02:14:33,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 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) [2022-11-23 02:14:33,865 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:33,865 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:33,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-23 02:14:33,865 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:33,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:33,866 INFO L85 PathProgramCache]: Analyzing trace with hash -26215799, now seen corresponding path program 1 times [2022-11-23 02:14:33,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:33,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229219211] [2022-11-23 02:14:33,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:33,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:33,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:33,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:33,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229219211] [2022-11-23 02:14:33,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229219211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:33,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:33,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:14:33,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573054745] [2022-11-23 02:14:33,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:33,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:14:33,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:33,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:14:33,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:14:34,007 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 247 [2022-11-23 02:14:34,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 157 transitions, 2293 flow. Second operand has 4 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 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) [2022-11-23 02:14:34,008 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:34,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 247 [2022-11-23 02:14:34,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:36,370 INFO L130 PetriNetUnfolder]: 7832/12470 cut-off events. [2022-11-23 02:14:36,371 INFO L131 PetriNetUnfolder]: For 212882/215000 co-relation queries the response was YES. [2022-11-23 02:14:36,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87848 conditions, 12470 events. 7832/12470 cut-off events. For 212882/215000 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 85346 event pairs, 2151 based on Foata normal form. 891/13019 useless extension candidates. Maximal degree in co-relation 87794. Up to 6278 conditions per place. [2022-11-23 02:14:36,540 INFO L137 encePairwiseOnDemand]: 243/247 looper letters, 143 selfloop transitions, 15 changer transitions 91/265 dead transitions. [2022-11-23 02:14:36,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 265 transitions, 4464 flow [2022-11-23 02:14:36,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:14:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-23 02:14:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 643 transitions. [2022-11-23 02:14:36,543 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5206477732793522 [2022-11-23 02:14:36,543 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 643 transitions. [2022-11-23 02:14:36,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 643 transitions. [2022-11-23 02:14:36,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:36,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 643 transitions. [2022-11-23 02:14:36,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 128.6) internal successors, (643), 5 states have internal predecessors, (643), 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) [2022-11-23 02:14:36,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:14:36,549 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 247.0) internal successors, (1482), 6 states have internal predecessors, (1482), 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) [2022-11-23 02:14:36,549 INFO L175 Difference]: Start difference. First operand has 105 places, 157 transitions, 2293 flow. Second operand 5 states and 643 transitions. [2022-11-23 02:14:36,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 265 transitions, 4464 flow [2022-11-23 02:14:37,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 265 transitions, 4368 flow, removed 39 selfloop flow, removed 2 redundant places. [2022-11-23 02:14:37,909 INFO L231 Difference]: Finished difference. Result has 110 places, 133 transitions, 1879 flow [2022-11-23 02:14:37,910 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1879, PETRI_PLACES=110, PETRI_TRANSITIONS=133} [2022-11-23 02:14:37,910 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 68 predicate places. [2022-11-23 02:14:37,910 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 133 transitions, 1879 flow [2022-11-23 02:14:37,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 120.5) internal successors, (482), 4 states have internal predecessors, (482), 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) [2022-11-23 02:14:37,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:37,911 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:37,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-23 02:14:37,911 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:37,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:37,912 INFO L85 PathProgramCache]: Analyzing trace with hash -885639876, now seen corresponding path program 1 times [2022-11-23 02:14:37,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:37,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227621648] [2022-11-23 02:14:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:37,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:37,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:38,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:38,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227621648] [2022-11-23 02:14:38,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227621648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:38,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:38,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:14:38,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498177707] [2022-11-23 02:14:38,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:38,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:14:38,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:38,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:14:38,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:14:38,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 247 [2022-11-23 02:14:38,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 133 transitions, 1879 flow. Second operand has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2022-11-23 02:14:38,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:38,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 247 [2022-11-23 02:14:38,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:40,028 INFO L130 PetriNetUnfolder]: 5524/8885 cut-off events. [2022-11-23 02:14:40,028 INFO L131 PetriNetUnfolder]: For 167627/170226 co-relation queries the response was YES. [2022-11-23 02:14:40,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56112 conditions, 8885 events. 5524/8885 cut-off events. For 167627/170226 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 61759 event pairs, 356 based on Foata normal form. 1562/10166 useless extension candidates. Maximal degree in co-relation 56056. Up to 2709 conditions per place. [2022-11-23 02:14:40,131 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 237 selfloop transitions, 23 changer transitions 76/360 dead transitions. [2022-11-23 02:14:40,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 360 transitions, 6339 flow [2022-11-23 02:14:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 02:14:40,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-23 02:14:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 993 transitions. [2022-11-23 02:14:40,134 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5025303643724697 [2022-11-23 02:14:40,134 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 993 transitions. [2022-11-23 02:14:40,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 993 transitions. [2022-11-23 02:14:40,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:40,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 993 transitions. [2022-11-23 02:14:40,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 124.125) internal successors, (993), 8 states have internal predecessors, (993), 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) [2022-11-23 02:14:40,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 247.0) internal successors, (2223), 9 states have internal predecessors, (2223), 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) [2022-11-23 02:14:40,141 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 247.0) internal successors, (2223), 9 states have internal predecessors, (2223), 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) [2022-11-23 02:14:40,141 INFO L175 Difference]: Start difference. First operand has 110 places, 133 transitions, 1879 flow. Second operand 8 states and 993 transitions. [2022-11-23 02:14:40,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 360 transitions, 6339 flow [2022-11-23 02:14:40,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 360 transitions, 5894 flow, removed 125 selfloop flow, removed 10 redundant places. [2022-11-23 02:14:40,831 INFO L231 Difference]: Finished difference. Result has 108 places, 121 transitions, 1582 flow [2022-11-23 02:14:40,831 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1500, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1582, PETRI_PLACES=108, PETRI_TRANSITIONS=121} [2022-11-23 02:14:40,832 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 66 predicate places. [2022-11-23 02:14:40,832 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 121 transitions, 1582 flow [2022-11-23 02:14:40,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 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) [2022-11-23 02:14:40,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:40,833 INFO L209 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] [2022-11-23 02:14:40,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-23 02:14:40,833 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1060092809, now seen corresponding path program 1 times [2022-11-23 02:14:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:40,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333465583] [2022-11-23 02:14:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:41,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:41,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:41,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333465583] [2022-11-23 02:14:41,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333465583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:41,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:41,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 02:14:41,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309373672] [2022-11-23 02:14:41,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:41,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 02:14:41,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:41,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 02:14:41,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 02:14:41,087 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 247 [2022-11-23 02:14:41,088 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 121 transitions, 1582 flow. Second operand has 7 states, 7 states have (on average 113.85714285714286) internal successors, (797), 7 states have internal predecessors, (797), 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) [2022-11-23 02:14:41,088 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:41,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 247 [2022-11-23 02:14:41,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:42,717 INFO L130 PetriNetUnfolder]: 4994/8048 cut-off events. [2022-11-23 02:14:42,717 INFO L131 PetriNetUnfolder]: For 126130/128231 co-relation queries the response was YES. [2022-11-23 02:14:42,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52045 conditions, 8048 events. 4994/8048 cut-off events. For 126130/128231 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 55994 event pairs, 317 based on Foata normal form. 909/8690 useless extension candidates. Maximal degree in co-relation 51992. Up to 2406 conditions per place. [2022-11-23 02:14:42,789 INFO L137 encePairwiseOnDemand]: 240/247 looper letters, 198 selfloop transitions, 28 changer transitions 80/324 dead transitions. [2022-11-23 02:14:42,789 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 324 transitions, 5274 flow [2022-11-23 02:14:42,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 02:14:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 02:14:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1216 transitions. [2022-11-23 02:14:42,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49230769230769234 [2022-11-23 02:14:42,792 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1216 transitions. [2022-11-23 02:14:42,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1216 transitions. [2022-11-23 02:14:42,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:42,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1216 transitions. [2022-11-23 02:14:42,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 121.6) internal successors, (1216), 10 states have internal predecessors, (1216), 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) [2022-11-23 02:14:42,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 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) [2022-11-23 02:14:42,800 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 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) [2022-11-23 02:14:42,801 INFO L175 Difference]: Start difference. First operand has 108 places, 121 transitions, 1582 flow. Second operand 10 states and 1216 transitions. [2022-11-23 02:14:42,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 324 transitions, 5274 flow [2022-11-23 02:14:43,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 324 transitions, 4582 flow, removed 192 selfloop flow, removed 12 redundant places. [2022-11-23 02:14:43,743 INFO L231 Difference]: Finished difference. Result has 108 places, 99 transitions, 1110 flow [2022-11-23 02:14:43,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1210, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1110, PETRI_PLACES=108, PETRI_TRANSITIONS=99} [2022-11-23 02:14:43,744 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 66 predicate places. [2022-11-23 02:14:43,744 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 99 transitions, 1110 flow [2022-11-23 02:14:43,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 113.85714285714286) internal successors, (797), 7 states have internal predecessors, (797), 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) [2022-11-23 02:14:43,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:43,744 INFO L209 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] [2022-11-23 02:14:43,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-23 02:14:43,745 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:43,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:43,745 INFO L85 PathProgramCache]: Analyzing trace with hash -1154330386, now seen corresponding path program 1 times [2022-11-23 02:14:43,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:43,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25795174] [2022-11-23 02:14:43,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:43,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:44,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:44,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:44,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25795174] [2022-11-23 02:14:44,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25795174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:44,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:44,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:14:44,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934965894] [2022-11-23 02:14:44,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:44,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 02:14:44,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:44,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:14:44,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:14:44,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2022-11-23 02:14:44,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 99 transitions, 1110 flow. Second operand has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 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) [2022-11-23 02:14:44,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:44,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2022-11-23 02:14:44,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:45,779 INFO L130 PetriNetUnfolder]: 3606/5714 cut-off events. [2022-11-23 02:14:45,779 INFO L131 PetriNetUnfolder]: For 59365/59683 co-relation queries the response was YES. [2022-11-23 02:14:45,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35573 conditions, 5714 events. 3606/5714 cut-off events. For 59365/59683 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 33700 event pairs, 520 based on Foata normal form. 167/5859 useless extension candidates. Maximal degree in co-relation 35522. Up to 3183 conditions per place. [2022-11-23 02:14:45,815 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 89 selfloop transitions, 19 changer transitions 126/239 dead transitions. [2022-11-23 02:14:45,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 239 transitions, 3034 flow [2022-11-23 02:14:45,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 02:14:45,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-23 02:14:45,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 820 transitions. [2022-11-23 02:14:45,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4742625795257374 [2022-11-23 02:14:45,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 820 transitions. [2022-11-23 02:14:45,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 820 transitions. [2022-11-23 02:14:45,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:45,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 820 transitions. [2022-11-23 02:14:45,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 117.14285714285714) internal successors, (820), 7 states have internal predecessors, (820), 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) [2022-11-23 02:14:45,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:14:45,821 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 247.0) internal successors, (1976), 8 states have internal predecessors, (1976), 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) [2022-11-23 02:14:45,821 INFO L175 Difference]: Start difference. First operand has 108 places, 99 transitions, 1110 flow. Second operand 7 states and 820 transitions. [2022-11-23 02:14:45,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 239 transitions, 3034 flow [2022-11-23 02:14:46,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 239 transitions, 2645 flow, removed 91 selfloop flow, removed 17 redundant places. [2022-11-23 02:14:46,096 INFO L231 Difference]: Finished difference. Result has 100 places, 94 transitions, 1015 flow [2022-11-23 02:14:46,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1015, PETRI_PLACES=100, PETRI_TRANSITIONS=94} [2022-11-23 02:14:46,096 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 58 predicate places. [2022-11-23 02:14:46,097 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 94 transitions, 1015 flow [2022-11-23 02:14:46,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 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) [2022-11-23 02:14:46,097 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:46,097 INFO L209 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] [2022-11-23 02:14:46,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-23 02:14:46,098 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:46,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:46,098 INFO L85 PathProgramCache]: Analyzing trace with hash 137605830, now seen corresponding path program 2 times [2022-11-23 02:14:46,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:46,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180459102] [2022-11-23 02:14:46,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:46,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:47,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:47,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:47,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180459102] [2022-11-23 02:14:47,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180459102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:47,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:47,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-23 02:14:47,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125469371] [2022-11-23 02:14:47,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:47,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 02:14:47,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:47,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 02:14:47,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 02:14:47,184 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 247 [2022-11-23 02:14:47,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 94 transitions, 1015 flow. Second operand has 8 states, 8 states have (on average 108.25) internal successors, (866), 8 states have internal predecessors, (866), 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) [2022-11-23 02:14:47,185 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:47,185 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 247 [2022-11-23 02:14:47,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:48,216 INFO L130 PetriNetUnfolder]: 1896/3234 cut-off events. [2022-11-23 02:14:48,216 INFO L131 PetriNetUnfolder]: For 28418/28610 co-relation queries the response was YES. [2022-11-23 02:14:48,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18026 conditions, 3234 events. 1896/3234 cut-off events. For 28418/28610 co-relation queries the response was YES. Maximal size of possible extension queue 227. Compared 19918 event pairs, 285 based on Foata normal form. 111/3327 useless extension candidates. Maximal degree in co-relation 17992. Up to 1118 conditions per place. [2022-11-23 02:14:48,239 INFO L137 encePairwiseOnDemand]: 235/247 looper letters, 51 selfloop transitions, 9 changer transitions 182/244 dead transitions. [2022-11-23 02:14:48,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 244 transitions, 2873 flow [2022-11-23 02:14:48,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 02:14:48,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-23 02:14:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1148 transitions. [2022-11-23 02:14:48,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4647773279352227 [2022-11-23 02:14:48,241 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1148 transitions. [2022-11-23 02:14:48,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1148 transitions. [2022-11-23 02:14:48,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:48,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1148 transitions. [2022-11-23 02:14:48,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.8) internal successors, (1148), 10 states have internal predecessors, (1148), 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) [2022-11-23 02:14:48,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 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) [2022-11-23 02:14:48,245 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 247.0) internal successors, (2717), 11 states have internal predecessors, (2717), 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) [2022-11-23 02:14:48,245 INFO L175 Difference]: Start difference. First operand has 100 places, 94 transitions, 1015 flow. Second operand 10 states and 1148 transitions. [2022-11-23 02:14:48,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 244 transitions, 2873 flow [2022-11-23 02:14:48,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 244 transitions, 2712 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-11-23 02:14:48,448 INFO L231 Difference]: Finished difference. Result has 101 places, 52 transitions, 502 flow [2022-11-23 02:14:48,448 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=502, PETRI_PLACES=101, PETRI_TRANSITIONS=52} [2022-11-23 02:14:48,449 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 59 predicate places. [2022-11-23 02:14:48,449 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 52 transitions, 502 flow [2022-11-23 02:14:48,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 108.25) internal successors, (866), 8 states have internal predecessors, (866), 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) [2022-11-23 02:14:48,450 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:48,450 INFO L209 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] [2022-11-23 02:14:48,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-23 02:14:48,451 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:48,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:48,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2088250658, now seen corresponding path program 3 times [2022-11-23 02:14:48,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:48,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169111333] [2022-11-23 02:14:48,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:48,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:14:50,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:14:50,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:14:50,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169111333] [2022-11-23 02:14:50,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169111333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:14:50,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:14:50,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 02:14:50,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854081271] [2022-11-23 02:14:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:14:50,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 02:14:50,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:14:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 02:14:50,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-23 02:14:50,218 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 247 [2022-11-23 02:14:50,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 52 transitions, 502 flow. Second operand has 10 states, 10 states have (on average 115.4) internal successors, (1154), 10 states have internal predecessors, (1154), 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) [2022-11-23 02:14:50,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 02:14:50,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 247 [2022-11-23 02:14:50,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 02:14:50,752 INFO L130 PetriNetUnfolder]: 352/634 cut-off events. [2022-11-23 02:14:50,757 INFO L131 PetriNetUnfolder]: For 5343/5353 co-relation queries the response was YES. [2022-11-23 02:14:50,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3640 conditions, 634 events. 352/634 cut-off events. For 5343/5353 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2642 event pairs, 50 based on Foata normal form. 7/636 useless extension candidates. Maximal degree in co-relation 3608. Up to 323 conditions per place. [2022-11-23 02:14:50,769 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 53 selfloop transitions, 5 changer transitions 30/92 dead transitions. [2022-11-23 02:14:50,769 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 992 flow [2022-11-23 02:14:50,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:14:50,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-23 02:14:50,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 723 transitions. [2022-11-23 02:14:50,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48785425101214575 [2022-11-23 02:14:50,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 723 transitions. [2022-11-23 02:14:50,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 723 transitions. [2022-11-23 02:14:50,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:14:50,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 723 transitions. [2022-11-23 02:14:50,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 120.5) internal successors, (723), 6 states have internal predecessors, (723), 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) [2022-11-23 02:14:50,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:50,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 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) [2022-11-23 02:14:50,777 INFO L175 Difference]: Start difference. First operand has 101 places, 52 transitions, 502 flow. Second operand 6 states and 723 transitions. [2022-11-23 02:14:50,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 992 flow [2022-11-23 02:14:50,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 92 transitions, 775 flow, removed 91 selfloop flow, removed 18 redundant places. [2022-11-23 02:14:50,794 INFO L231 Difference]: Finished difference. Result has 75 places, 50 transitions, 353 flow [2022-11-23 02:14:50,795 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=75, PETRI_TRANSITIONS=50} [2022-11-23 02:14:50,795 INFO L288 CegarLoopForPetriNet]: 42 programPoint places, 33 predicate places. [2022-11-23 02:14:50,796 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 50 transitions, 353 flow [2022-11-23 02:14:50,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.4) internal successors, (1154), 10 states have internal predecessors, (1154), 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) [2022-11-23 02:14:50,796 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 02:14:50,796 INFO L209 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] [2022-11-23 02:14:50,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-23 02:14:50,797 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-23 02:14:50,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:14:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2093711476, now seen corresponding path program 4 times [2022-11-23 02:14:50,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:14:50,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618171692] [2022-11-23 02:14:50,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:14:50,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:14:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:14:50,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:14:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:14:50,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:14:50,990 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:14:50,991 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2022-11-23 02:14:50,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2022-11-23 02:14:50,995 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-23 02:14:51,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-23 02:14:51,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2022-11-23 02:14:51,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2022-11-23 02:14:51,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2022-11-23 02:14:51,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-23 02:14:51,002 INFO L444 BasicCegarLoop]: Path program histogram: [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:14:51,010 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-23 02:14:51,010 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:14:51,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:14:51 BasicIcfg [2022-11-23 02:14:51,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:14:51,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:14:51,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:14:51,151 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:14:51,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:43" (3/4) ... [2022-11-23 02:14:51,154 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 02:14:51,313 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:14:51,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:14:51,319 INFO L158 Benchmark]: Toolchain (without parser) took 69135.65ms. Allocated memory was 155.2MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 109.5MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 698.0MB. Max. memory is 16.1GB. [2022-11-23 02:14:51,320 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 155.2MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:14:51,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.32ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 85.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 02:14:51,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.33ms. Allocated memory is still 155.2MB. Free memory was 85.8MB in the beginning and 82.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:14:51,321 INFO L158 Benchmark]: Boogie Preprocessor took 34.80ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:14:51,321 INFO L158 Benchmark]: RCFGBuilder took 912.70ms. Allocated memory is still 155.2MB. Free memory was 81.2MB in the beginning and 111.7MB in the end (delta: -30.5MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-11-23 02:14:51,322 INFO L158 Benchmark]: TraceAbstraction took 67263.84ms. Allocated memory was 155.2MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 110.9MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 680.2MB. Max. memory is 16.1GB. [2022-11-23 02:14:51,322 INFO L158 Benchmark]: Witness Printer took 167.67ms. Allocated memory is still 3.6GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 02:14:51,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 155.2MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.32ms. Allocated memory is still 155.2MB. Free memory was 109.5MB in the beginning and 85.8MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.33ms. Allocated memory is still 155.2MB. Free memory was 85.8MB in the beginning and 82.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.80ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 912.70ms. Allocated memory is still 155.2MB. Free memory was 81.2MB in the beginning and 111.7MB in the end (delta: -30.5MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * TraceAbstraction took 67263.84ms. Allocated memory was 155.2MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 110.9MB in the beginning and 2.9GB in the end (delta: -2.8GB). Peak memory consumption was 680.2MB. Max. memory is 16.1GB. * Witness Printer took 167.67ms. Allocated memory is still 3.6GB. Free memory was 2.9GB in the beginning and 2.9GB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4s, 141 PlacesBefore, 42 PlacesAfterwards, 130 TransitionsBefore, 30 TransitionsAfterwards, 3106 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 7941 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4118, independent: 3913, independent conditional: 0, independent unconditional: 3913, dependent: 205, dependent conditional: 0, dependent unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2200, independent: 2144, independent conditional: 0, independent unconditional: 2144, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2200, independent: 2112, independent conditional: 0, independent unconditional: 2112, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 88, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 56, dependent conditional: 0, dependent unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 363, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 299, dependent conditional: 0, dependent unconditional: 299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4118, independent: 1769, independent conditional: 0, independent unconditional: 1769, dependent: 149, dependent conditional: 0, dependent unconditional: 149, unknown: 2200, unknown conditional: 0, unknown unconditional: 2200] , Statistics on independence cache: Total cache size (in pairs): 235, Positive cache size: 215, Positive conditional cache size: 0, Positive unconditional cache size: 215, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p2_EAX = 0; [L714] 0 int __unbuffered_p3_EAX = 0; [L716] 0 int a = 0; [L717] 0 _Bool main$tmp_guard0; [L718] 0 _Bool main$tmp_guard1; [L720] 0 int x = 0; [L722] 0 int y = 0; [L723] 0 _Bool y$flush_delayed; [L724] 0 int y$mem_tmp; [L725] 0 _Bool y$r_buff0_thd0; [L726] 0 _Bool y$r_buff0_thd1; [L727] 0 _Bool y$r_buff0_thd2; [L728] 0 _Bool y$r_buff0_thd3; [L729] 0 _Bool y$r_buff0_thd4; [L730] 0 _Bool y$r_buff1_thd0; [L731] 0 _Bool y$r_buff1_thd1; [L732] 0 _Bool y$r_buff1_thd2; [L733] 0 _Bool y$r_buff1_thd3; [L734] 0 _Bool y$r_buff1_thd4; [L735] 0 _Bool y$read_delayed; [L736] 0 int *y$read_delayed_var; [L737] 0 int y$w_buff0; [L738] 0 _Bool y$w_buff0_used; [L739] 0 int y$w_buff1; [L740] 0 _Bool y$w_buff1_used; [L742] 0 int z = 0; [L743] 0 _Bool weak$$choice0; [L744] 0 _Bool weak$$choice2; [L841] 0 pthread_t t1433; [L842] FCALL, FORK 0 pthread_create(&t1433, ((void *)0), P0, ((void *)0)) VAL [#in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1433, ((void *)0), P0, ((void *)0))=-2, t1433={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L843] 0 pthread_t t1434; [L844] FCALL, FORK 0 pthread_create(&t1434, ((void *)0), P1, ((void *)0)) VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1434, ((void *)0), P1, ((void *)0))=-1, t1433={5:0}, t1434={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L845] 0 pthread_t t1435; [L846] FCALL, FORK 0 pthread_create(&t1435, ((void *)0), P2, ((void *)0)) VAL [#in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1435, ((void *)0), P2, ((void *)0))=0, t1433={5:0}, t1434={6:0}, t1435={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L847] 0 pthread_t t1436; [L848] FCALL, FORK 0 pthread_create(&t1436, ((void *)0), P3, ((void *)0)) VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1436, ((void *)0), P3, ((void *)0))=1, t1433={5:0}, t1434={6:0}, t1435={7:0}, t1436={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L783] 3 y$w_buff1 = y$w_buff0 [L784] 3 y$w_buff0 = 2 [L785] 3 y$w_buff1_used = y$w_buff0_used [L786] 3 y$w_buff0_used = (_Bool)1 [L787] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L787] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L788] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L789] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L790] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L791] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L792] 3 y$r_buff1_thd4 = y$r_buff0_thd4 [L793] 3 y$r_buff0_thd3 = (_Bool)1 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L796] 3 __unbuffered_p2_EAX = z VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 4 z = 1 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L816] 4 __unbuffered_p3_EAX = a VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 1 a = 1 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 1 x = 1 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L763] 2 x = 2 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L819] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L820] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L821] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L822] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L823] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L766] 2 y = 1 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L799] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L800] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L801] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L802] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L803] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L806] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L808] 3 return 0; [L756] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L758] 1 return 0; [L769] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L770] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L771] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L772] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L773] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L826] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L828] 4 return 0; [L776] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L778] 2 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L855] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L856] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L857] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L858] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1433={5:0}, t1434={6:0}, t1435={7:0}, t1436={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L861] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L862] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L863] 0 y$flush_delayed = weak$$choice2 [L864] 0 y$mem_tmp = y [L865] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L866] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L867] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L868] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L869] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L870] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L871] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L872] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 0) [L873] 0 y = y$flush_delayed ? y$mem_tmp : y [L874] 0 y$flush_delayed = (_Bool)0 [L876] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [#in~arg={0:0}, #in~arg={0:0}, #in~arg={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, unknown-#in~expression-unknown=0, unknown-#in~expression-unknown=1, weak$$choice0=49, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 844]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 842]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 848]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 169 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 66.9s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 46.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1931 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1665 mSDsluCounter, 1353 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1199 mSDsCounter, 436 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5618 IncrementalHoareTripleChecker+Invalid, 6054 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 436 mSolverCounterUnsat, 154 mSDtfsCounter, 5618 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2526occurred in iteration=17, InterpolantAutomatonStates: 161, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 13.4s InterpolantComputationTime, 433 NumberOfCodeBlocks, 433 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 382 ConstructedInterpolants, 0 QuantifiedInterpolants, 3671 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 02:14:51,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0102a81d-5e0c-4fb8-ac90-a07086091b49/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE