./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN --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 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 --- 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-6b4ec56 [2022-11-20 10:58:17,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:58:17,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:58:17,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:58:17,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:58:17,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:58:17,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:58:17,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:58:17,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:58:17,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:58:17,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:58:17,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:58:17,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:58:17,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:58:17,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:58:17,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:58:17,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:58:17,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:58:17,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:58:17,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:58:17,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:58:17,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:58:17,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:58:17,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:58:17,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:58:17,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:58:17,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:58:17,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:58:17,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:58:17,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:58:17,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:58:17,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:58:17,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:58:17,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:58:17,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:58:17,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:58:17,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:58:17,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:58:17,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:58:17,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:58:17,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:58:17,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:58:17,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:58:17,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:58:17,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:58:17,445 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:58:17,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:58:17,446 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:58:17,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:58:17,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:58:17,447 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:58:17,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:58:17,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:58:17,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:58:17,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:58:17,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:58:17,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:58:17,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:58:17,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:58:17,450 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:58:17,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:58:17,450 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:58:17,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:58:17,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:58:17,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:58:17,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:58:17,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:17,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:58:17,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:58:17,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:58:17,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:58:17,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:58:17,453 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:58:17,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:58:17,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:58:17,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b8fef41c3119c5f4fc9586ebd31a4ff7152be41d9f2f8da139e8cd34cf0da86 [2022-11-20 10:58:17,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:58:17,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:58:17,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:58:17,726 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:58:17,727 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:58:17,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 10:58:20,804 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:58:21,015 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:58:21,015 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 10:58:21,023 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/data/5d7b5df14/0b454c1c99ae4340a958dc24ed52511c/FLAG0627f8f3a [2022-11-20 10:58:21,038 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/data/5d7b5df14/0b454c1c99ae4340a958dc24ed52511c [2022-11-20 10:58:21,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:58:21,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:58:21,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:21,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:58:21,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:58:21,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a61ca0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21, skipping insertion in model container [2022-11-20 10:58:21,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:58:21,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:58:21,274 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_5536e2f9-3e23-4514-a31b-c7e483c7457b/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 10:58:21,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:21,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:58:21,328 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_5536e2f9-3e23-4514-a31b-c7e483c7457b/sv-benchmarks/c/weaver/parallel-parallel-sum-1-dsl.wvr.c[4372,4385] [2022-11-20 10:58:21,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:58:21,349 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:58:21,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21 WrapperNode [2022-11-20 10:58:21,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:58:21,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:21,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:58:21,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:58:21,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,409 INFO L138 Inliner]: procedures = 29, calls = 95, calls flagged for inlining = 21, calls inlined = 27, statements flattened = 289 [2022-11-20 10:58:21,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:58:21,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:58:21,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:58:21,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:58:21,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,490 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:58:21,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:58:21,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:58:21,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:58:21,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (1/1) ... [2022-11-20 10:58:21,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:58:21,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:21,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:58:21,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:58:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:58:21,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:58:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:58:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:58:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:58:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:58:21,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:58:21,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:58:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:58:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:58:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 10:58:21,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 10:58:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:58:21,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 10:58:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 10:58:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 10:58:21,580 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 10:58:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 10:58:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 10:58:21,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:58:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:58:21,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:58:21,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:58:21,583 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:58:21,708 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:58:21,710 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:58:22,357 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:58:22,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:58:22,722 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 10:58:22,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:22 BoogieIcfgContainer [2022-11-20 10:58:22,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:58:22,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:58:22,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:58:22,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:58:22,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:58:21" (1/3) ... [2022-11-20 10:58:22,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4691fa8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:58:22, skipping insertion in model container [2022-11-20 10:58:22,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:58:21" (2/3) ... [2022-11-20 10:58:22,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4691fa8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:58:22, skipping insertion in model container [2022-11-20 10:58:22,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:58:22" (3/3) ... [2022-11-20 10:58:22,741 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-1-dsl.wvr.c [2022-11-20 10:58:22,750 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:58:22,761 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:58:22,761 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:58:22,762 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:58:22,932 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-11-20 10:58:22,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 260 transitions, 592 flow [2022-11-20 10:58:23,151 INFO L130 PetriNetUnfolder]: 18/232 cut-off events. [2022-11-20 10:58:23,151 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 10:58:23,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 232 events. 18/232 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 285 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 200. Up to 3 conditions per place. [2022-11-20 10:58:23,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 260 transitions, 592 flow [2022-11-20 10:58:23,172 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 224 places, 223 transitions, 494 flow [2022-11-20 10:58:23,189 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:58:23,200 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;@38bb975, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:58:23,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 10:58:23,293 INFO L130 PetriNetUnfolder]: 18/222 cut-off events. [2022-11-20 10:58:23,294 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 10:58:23,294 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:23,296 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:23,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:23,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:23,302 INFO L85 PathProgramCache]: Analyzing trace with hash 920841663, now seen corresponding path program 1 times [2022-11-20 10:58:23,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:23,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921934293] [2022-11-20 10:58:23,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:23,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:23,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:23,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921934293] [2022-11-20 10:58:23,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921934293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:23,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:23,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:58:23,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379910916] [2022-11-20 10:58:23,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:23,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 10:58:23,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:23,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 10:58:23,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 10:58:23,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 264 [2022-11-20 10:58:23,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 223 transitions, 494 flow. Second operand has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 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) [2022-11-20 10:58:23,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:23,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 264 [2022-11-20 10:58:23,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:24,571 INFO L130 PetriNetUnfolder]: 1084/2340 cut-off events. [2022-11-20 10:58:24,571 INFO L131 PetriNetUnfolder]: For 684/684 co-relation queries the response was YES. [2022-11-20 10:58:24,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4457 conditions, 2340 events. 1084/2340 cut-off events. For 684/684 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 13080 event pairs, 627 based on Foata normal form. 309/2437 useless extension candidates. Maximal degree in co-relation 4157. Up to 1445 conditions per place. [2022-11-20 10:58:24,605 INFO L137 encePairwiseOnDemand]: 255/264 looper letters, 30 selfloop transitions, 0 changer transitions 4/214 dead transitions. [2022-11-20 10:58:24,605 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 214 transitions, 536 flow [2022-11-20 10:58:24,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 10:58:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-20 10:58:24,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 471 transitions. [2022-11-20 10:58:24,628 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8920454545454546 [2022-11-20 10:58:24,628 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 471 transitions. [2022-11-20 10:58:24,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 471 transitions. [2022-11-20 10:58:24,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:24,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 471 transitions. [2022-11-20 10:58:24,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 235.5) internal successors, (471), 2 states have internal predecessors, (471), 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) [2022-11-20 10:58:24,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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) [2022-11-20 10:58:24,649 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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) [2022-11-20 10:58:24,651 INFO L175 Difference]: Start difference. First operand has 224 places, 223 transitions, 494 flow. Second operand 2 states and 471 transitions. [2022-11-20 10:58:24,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 214 transitions, 536 flow [2022-11-20 10:58:24,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 214 transitions, 504 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-20 10:58:24,665 INFO L231 Difference]: Finished difference. Result has 213 places, 210 transitions, 436 flow [2022-11-20 10:58:24,667 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=436, PETRI_PLACES=213, PETRI_TRANSITIONS=210} [2022-11-20 10:58:24,672 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -11 predicate places. [2022-11-20 10:58:24,672 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 210 transitions, 436 flow [2022-11-20 10:58:24,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 227.5) internal successors, (455), 2 states have internal predecessors, (455), 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) [2022-11-20 10:58:24,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:24,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:24,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:58:24,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:24,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:24,675 INFO L85 PathProgramCache]: Analyzing trace with hash 678813083, now seen corresponding path program 1 times [2022-11-20 10:58:24,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:24,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643315958] [2022-11-20 10:58:24,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:24,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:25,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:25,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643315958] [2022-11-20 10:58:25,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643315958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:25,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:25,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:58:25,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204954790] [2022-11-20 10:58:25,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:25,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:58:25,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:25,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:58:25,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:58:25,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 264 [2022-11-20 10:58:25,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 210 transitions, 436 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-20 10:58:25,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:25,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 264 [2022-11-20 10:58:25,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:27,405 INFO L130 PetriNetUnfolder]: 3024/6404 cut-off events. [2022-11-20 10:58:27,405 INFO L131 PetriNetUnfolder]: For 486/486 co-relation queries the response was YES. [2022-11-20 10:58:27,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 6404 events. 3024/6404 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 47689 event pairs, 1153 based on Foata normal form. 1/5769 useless extension candidates. Maximal degree in co-relation 10859. Up to 1683 conditions per place. [2022-11-20 10:58:27,477 INFO L137 encePairwiseOnDemand]: 253/264 looper letters, 95 selfloop transitions, 10 changer transitions 4/269 dead transitions. [2022-11-20 10:58:27,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 269 transitions, 799 flow [2022-11-20 10:58:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:58:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:58:27,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1262 transitions. [2022-11-20 10:58:27,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7967171717171717 [2022-11-20 10:58:27,483 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1262 transitions. [2022-11-20 10:58:27,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1262 transitions. [2022-11-20 10:58:27,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:27,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1262 transitions. [2022-11-20 10:58:27,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.33333333333334) internal successors, (1262), 6 states have internal predecessors, (1262), 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) [2022-11-20 10:58:27,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-20 10:58:27,494 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-20 10:58:27,494 INFO L175 Difference]: Start difference. First operand has 213 places, 210 transitions, 436 flow. Second operand 6 states and 1262 transitions. [2022-11-20 10:58:27,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 269 transitions, 799 flow [2022-11-20 10:58:27,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 269 transitions, 799 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:58:27,502 INFO L231 Difference]: Finished difference. Result has 218 places, 217 transitions, 499 flow [2022-11-20 10:58:27,502 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=499, PETRI_PLACES=218, PETRI_TRANSITIONS=217} [2022-11-20 10:58:27,503 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -6 predicate places. [2022-11-20 10:58:27,504 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 217 transitions, 499 flow [2022-11-20 10:58:27,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-20 10:58:27,505 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:27,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:27,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:58:27,506 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash -564858839, now seen corresponding path program 2 times [2022-11-20 10:58:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:27,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877922577] [2022-11-20 10:58:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:27,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:27,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:27,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877922577] [2022-11-20 10:58:27,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877922577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:27,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:27,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 10:58:27,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265114922] [2022-11-20 10:58:27,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:27,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:58:27,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:27,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:58:27,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:58:27,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 264 [2022-11-20 10:58:27,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 217 transitions, 499 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-20 10:58:27,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:27,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 264 [2022-11-20 10:58:27,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:30,358 INFO L130 PetriNetUnfolder]: 4929/10331 cut-off events. [2022-11-20 10:58:30,358 INFO L131 PetriNetUnfolder]: For 2189/2189 co-relation queries the response was YES. [2022-11-20 10:58:30,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19625 conditions, 10331 events. 4929/10331 cut-off events. For 2189/2189 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 85327 event pairs, 1899 based on Foata normal form. 1/9262 useless extension candidates. Maximal degree in co-relation 19617. Up to 3014 conditions per place. [2022-11-20 10:58:30,500 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 99 selfloop transitions, 14 changer transitions 4/277 dead transitions. [2022-11-20 10:58:30,501 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 277 transitions, 912 flow [2022-11-20 10:58:30,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:58:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:58:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1263 transitions. [2022-11-20 10:58:30,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7973484848484849 [2022-11-20 10:58:30,505 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1263 transitions. [2022-11-20 10:58:30,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1263 transitions. [2022-11-20 10:58:30,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:30,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1263 transitions. [2022-11-20 10:58:30,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.5) internal successors, (1263), 6 states have internal predecessors, (1263), 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) [2022-11-20 10:58:30,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-20 10:58:30,516 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 264.0) internal successors, (1848), 7 states have internal predecessors, (1848), 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) [2022-11-20 10:58:30,516 INFO L175 Difference]: Start difference. First operand has 218 places, 217 transitions, 499 flow. Second operand 6 states and 1263 transitions. [2022-11-20 10:58:30,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 277 transitions, 912 flow [2022-11-20 10:58:30,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 277 transitions, 902 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-20 10:58:30,529 INFO L231 Difference]: Finished difference. Result has 223 places, 224 transitions, 588 flow [2022-11-20 10:58:30,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=588, PETRI_PLACES=223, PETRI_TRANSITIONS=224} [2022-11-20 10:58:30,532 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, -1 predicate places. [2022-11-20 10:58:30,532 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 224 transitions, 588 flow [2022-11-20 10:58:30,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 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) [2022-11-20 10:58:30,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:30,534 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:30,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:58:30,534 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:30,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:30,536 INFO L85 PathProgramCache]: Analyzing trace with hash -475939180, now seen corresponding path program 1 times [2022-11-20 10:58:30,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:30,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910214081] [2022-11-20 10:58:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:30,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:31,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:31,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:31,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910214081] [2022-11-20 10:58:31,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910214081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:31,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:31,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:58:31,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957762719] [2022-11-20 10:58:31,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:31,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:58:31,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:31,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:58:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:58:31,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 264 [2022-11-20 10:58:31,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 224 transitions, 588 flow. Second operand has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-20 10:58:31,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:31,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 264 [2022-11-20 10:58:31,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:34,660 INFO L130 PetriNetUnfolder]: 6200/14218 cut-off events. [2022-11-20 10:58:34,661 INFO L131 PetriNetUnfolder]: For 6253/6253 co-relation queries the response was YES. [2022-11-20 10:58:34,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28095 conditions, 14218 events. 6200/14218 cut-off events. For 6253/6253 co-relation queries the response was YES. Maximal size of possible extension queue 492. Compared 130041 event pairs, 1544 based on Foata normal form. 573/13424 useless extension candidates. Maximal degree in co-relation 28084. Up to 3830 conditions per place. [2022-11-20 10:58:34,815 INFO L137 encePairwiseOnDemand]: 254/264 looper letters, 136 selfloop transitions, 9 changer transitions 0/308 dead transitions. [2022-11-20 10:58:34,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 308 transitions, 1227 flow [2022-11-20 10:58:34,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:58:34,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 10:58:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1707 transitions. [2022-11-20 10:58:34,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8082386363636364 [2022-11-20 10:58:34,820 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1707 transitions. [2022-11-20 10:58:34,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1707 transitions. [2022-11-20 10:58:34,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:34,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1707 transitions. [2022-11-20 10:58:34,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 213.375) internal successors, (1707), 8 states have internal predecessors, (1707), 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) [2022-11-20 10:58:34,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-20 10:58:34,832 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-20 10:58:34,832 INFO L175 Difference]: Start difference. First operand has 223 places, 224 transitions, 588 flow. Second operand 8 states and 1707 transitions. [2022-11-20 10:58:34,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 308 transitions, 1227 flow [2022-11-20 10:58:34,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 308 transitions, 1215 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-11-20 10:58:34,846 INFO L231 Difference]: Finished difference. Result has 231 places, 230 transitions, 657 flow [2022-11-20 10:58:34,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=580, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=657, PETRI_PLACES=231, PETRI_TRANSITIONS=230} [2022-11-20 10:58:34,848 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 7 predicate places. [2022-11-20 10:58:34,848 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 230 transitions, 657 flow [2022-11-20 10:58:34,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-20 10:58:34,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:34,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:34,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:58:34,849 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:34,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:34,850 INFO L85 PathProgramCache]: Analyzing trace with hash 523035468, now seen corresponding path program 1 times [2022-11-20 10:58:34,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:34,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039206412] [2022-11-20 10:58:34,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:35,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:35,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:35,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039206412] [2022-11-20 10:58:35,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039206412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:58:35,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:58:35,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 10:58:35,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136496162] [2022-11-20 10:58:35,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:35,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 10:58:35,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:35,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 10:58:35,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 10:58:35,284 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 264 [2022-11-20 10:58:35,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 230 transitions, 657 flow. Second operand has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-20 10:58:35,286 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:35,286 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 264 [2022-11-20 10:58:35,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:38,043 INFO L130 PetriNetUnfolder]: 4877/12045 cut-off events. [2022-11-20 10:58:38,044 INFO L131 PetriNetUnfolder]: For 8228/8228 co-relation queries the response was YES. [2022-11-20 10:58:38,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25455 conditions, 12045 events. 4877/12045 cut-off events. For 8228/8228 co-relation queries the response was YES. Maximal size of possible extension queue 472. Compared 112148 event pairs, 1256 based on Foata normal form. 408/11194 useless extension candidates. Maximal degree in co-relation 25440. Up to 3505 conditions per place. [2022-11-20 10:58:38,174 INFO L137 encePairwiseOnDemand]: 254/264 looper letters, 95 selfloop transitions, 6 changer transitions 34/298 dead transitions. [2022-11-20 10:58:38,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 298 transitions, 1222 flow [2022-11-20 10:58:38,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 10:58:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-20 10:58:38,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1699 transitions. [2022-11-20 10:58:38,179 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8044507575757576 [2022-11-20 10:58:38,179 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1699 transitions. [2022-11-20 10:58:38,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1699 transitions. [2022-11-20 10:58:38,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:38,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1699 transitions. [2022-11-20 10:58:38,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 212.375) internal successors, (1699), 8 states have internal predecessors, (1699), 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) [2022-11-20 10:58:38,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-20 10:58:38,189 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 264.0) internal successors, (2376), 9 states have internal predecessors, (2376), 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) [2022-11-20 10:58:38,190 INFO L175 Difference]: Start difference. First operand has 231 places, 230 transitions, 657 flow. Second operand 8 states and 1699 transitions. [2022-11-20 10:58:38,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 298 transitions, 1222 flow [2022-11-20 10:58:38,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 298 transitions, 1219 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:58:38,199 INFO L231 Difference]: Finished difference. Result has 240 places, 229 transitions, 663 flow [2022-11-20 10:58:38,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=663, PETRI_PLACES=240, PETRI_TRANSITIONS=229} [2022-11-20 10:58:38,200 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 16 predicate places. [2022-11-20 10:58:38,200 INFO L495 AbstractCegarLoop]: Abstraction has has 240 places, 229 transitions, 663 flow [2022-11-20 10:58:38,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 203.71428571428572) internal successors, (1426), 7 states have internal predecessors, (1426), 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) [2022-11-20 10:58:38,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:38,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:38,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:58:38,202 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:38,203 INFO L85 PathProgramCache]: Analyzing trace with hash -108494101, now seen corresponding path program 1 times [2022-11-20 10:58:38,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:38,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471614029] [2022-11-20 10:58:38,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:38,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:38,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471614029] [2022-11-20 10:58:38,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471614029] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:38,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367753793] [2022-11-20 10:58:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:38,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:38,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:38,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 10:58:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:38,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:58:38,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:39,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:39,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:39,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:39,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367753793] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:58:39,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:58:39,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 10:58:39,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409518880] [2022-11-20 10:58:39,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:58:39,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:58:39,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:39,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:58:39,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:58:39,610 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-20 10:58:39,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 229 transitions, 663 flow. Second operand has 18 states, 18 states have (on average 201.44444444444446) internal successors, (3626), 18 states have internal predecessors, (3626), 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) [2022-11-20 10:58:39,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:39,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-20 10:58:39,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:42,734 INFO L130 PetriNetUnfolder]: 5825/14011 cut-off events. [2022-11-20 10:58:42,734 INFO L131 PetriNetUnfolder]: For 13928/13928 co-relation queries the response was YES. [2022-11-20 10:58:42,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32859 conditions, 14011 events. 5825/14011 cut-off events. For 13928/13928 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 132119 event pairs, 1300 based on Foata normal form. 156/12834 useless extension candidates. Maximal degree in co-relation 32840. Up to 3665 conditions per place. [2022-11-20 10:58:42,888 INFO L137 encePairwiseOnDemand]: 248/264 looper letters, 144 selfloop transitions, 17 changer transitions 0/323 dead transitions. [2022-11-20 10:58:42,888 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 323 transitions, 1438 flow [2022-11-20 10:58:42,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:58:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 10:58:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2891 transitions. [2022-11-20 10:58:42,895 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7821969696969697 [2022-11-20 10:58:42,895 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2891 transitions. [2022-11-20 10:58:42,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2891 transitions. [2022-11-20 10:58:42,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:42,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2891 transitions. [2022-11-20 10:58:42,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 206.5) internal successors, (2891), 14 states have internal predecessors, (2891), 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) [2022-11-20 10:58:42,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 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) [2022-11-20 10:58:42,912 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 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) [2022-11-20 10:58:42,912 INFO L175 Difference]: Start difference. First operand has 240 places, 229 transitions, 663 flow. Second operand 14 states and 2891 transitions. [2022-11-20 10:58:42,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 323 transitions, 1438 flow [2022-11-20 10:58:42,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 323 transitions, 1393 flow, removed 20 selfloop flow, removed 7 redundant places. [2022-11-20 10:58:42,929 INFO L231 Difference]: Finished difference. Result has 248 places, 238 transitions, 757 flow [2022-11-20 10:58:42,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=757, PETRI_PLACES=248, PETRI_TRANSITIONS=238} [2022-11-20 10:58:42,932 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 24 predicate places. [2022-11-20 10:58:42,932 INFO L495 AbstractCegarLoop]: Abstraction has has 248 places, 238 transitions, 757 flow [2022-11-20 10:58:42,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 201.44444444444446) internal successors, (3626), 18 states have internal predecessors, (3626), 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) [2022-11-20 10:58:42,935 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:42,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:42,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:43,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:43,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:43,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:43,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1324170145, now seen corresponding path program 1 times [2022-11-20 10:58:43,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:43,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362118012] [2022-11-20 10:58:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:43,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:43,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:43,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362118012] [2022-11-20 10:58:43,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362118012] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:43,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005734419] [2022-11-20 10:58:43,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:43,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:43,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:43,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:43,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 10:58:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:43,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-20 10:58:43,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:44,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:44,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005734419] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 10:58:44,460 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 10:58:44,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-11-20 10:58:44,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827908607] [2022-11-20 10:58:44,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 10:58:44,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 10:58:44,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:44,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 10:58:44,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:58:44,465 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-20 10:58:44,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 238 transitions, 757 flow. Second operand has 18 states, 18 states have (on average 201.44444444444446) internal successors, (3626), 18 states have internal predecessors, (3626), 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) [2022-11-20 10:58:44,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:44,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-20 10:58:44,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:47,169 INFO L130 PetriNetUnfolder]: 4877/12062 cut-off events. [2022-11-20 10:58:47,169 INFO L131 PetriNetUnfolder]: For 11971/11971 co-relation queries the response was YES. [2022-11-20 10:58:47,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28340 conditions, 12062 events. 4877/12062 cut-off events. For 11971/11971 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 112471 event pairs, 1221 based on Foata normal form. 69/10873 useless extension candidates. Maximal degree in co-relation 28319. Up to 3505 conditions per place. [2022-11-20 10:58:47,268 INFO L137 encePairwiseOnDemand]: 248/264 looper letters, 93 selfloop transitions, 14 changer transitions 40/309 dead transitions. [2022-11-20 10:58:47,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 309 transitions, 1386 flow [2022-11-20 10:58:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-20 10:58:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-20 10:58:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2883 transitions. [2022-11-20 10:58:47,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7800324675324676 [2022-11-20 10:58:47,275 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2883 transitions. [2022-11-20 10:58:47,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2883 transitions. [2022-11-20 10:58:47,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:47,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2883 transitions. [2022-11-20 10:58:47,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 205.92857142857142) internal successors, (2883), 14 states have internal predecessors, (2883), 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) [2022-11-20 10:58:47,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 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) [2022-11-20 10:58:47,291 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 264.0) internal successors, (3960), 15 states have internal predecessors, (3960), 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) [2022-11-20 10:58:47,291 INFO L175 Difference]: Start difference. First operand has 248 places, 238 transitions, 757 flow. Second operand 14 states and 2883 transitions. [2022-11-20 10:58:47,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 309 transitions, 1386 flow [2022-11-20 10:58:47,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 309 transitions, 1369 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-11-20 10:58:47,303 INFO L231 Difference]: Finished difference. Result has 258 places, 233 transitions, 730 flow [2022-11-20 10:58:47,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=730, PETRI_PLACES=258, PETRI_TRANSITIONS=233} [2022-11-20 10:58:47,305 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 34 predicate places. [2022-11-20 10:58:47,305 INFO L495 AbstractCegarLoop]: Abstraction has has 258 places, 233 transitions, 730 flow [2022-11-20 10:58:47,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 201.44444444444446) internal successors, (3626), 18 states have internal predecessors, (3626), 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) [2022-11-20 10:58:47,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:47,307 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:47,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:47,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-20 10:58:47,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:47,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1394835212, now seen corresponding path program 2 times [2022-11-20 10:58:47,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:47,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385919114] [2022-11-20 10:58:47,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:47,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:47,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:47,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385919114] [2022-11-20 10:58:47,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385919114] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:47,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534959325] [2022-11-20 10:58:47,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:58:47,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:47,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:47,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:48,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 10:58:48,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:58:48,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:58:48,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:58:48,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:48,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:49,091 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:49,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534959325] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:49,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:58:49,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-11-20 10:58:49,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842017195] [2022-11-20 10:58:49,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:49,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:58:49,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:49,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:58:49,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:58:49,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-20 10:58:49,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 233 transitions, 730 flow. Second operand has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-20 10:58:49,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:49,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-20 10:58:49,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:50,649 INFO L130 PetriNetUnfolder]: 3360/8022 cut-off events. [2022-11-20 10:58:50,649 INFO L131 PetriNetUnfolder]: For 10958/10958 co-relation queries the response was YES. [2022-11-20 10:58:50,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20425 conditions, 8022 events. 3360/8022 cut-off events. For 10958/10958 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 68088 event pairs, 1419 based on Foata normal form. 162/7446 useless extension candidates. Maximal degree in co-relation 20402. Up to 4107 conditions per place. [2022-11-20 10:58:50,872 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 85 selfloop transitions, 11 changer transitions 0/258 dead transitions. [2022-11-20 10:58:50,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 258 transitions, 1053 flow [2022-11-20 10:58:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:58:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 10:58:50,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2053 transitions. [2022-11-20 10:58:50,883 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776515151515152 [2022-11-20 10:58:50,883 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2053 transitions. [2022-11-20 10:58:50,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2053 transitions. [2022-11-20 10:58:50,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:50,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2053 transitions. [2022-11-20 10:58:50,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.3) internal successors, (2053), 10 states have internal predecessors, (2053), 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) [2022-11-20 10:58:50,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-20 10:58:50,895 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-20 10:58:50,896 INFO L175 Difference]: Start difference. First operand has 258 places, 233 transitions, 730 flow. Second operand 10 states and 2053 transitions. [2022-11-20 10:58:50,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 258 transitions, 1053 flow [2022-11-20 10:58:50,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 258 transitions, 992 flow, removed 15 selfloop flow, removed 15 redundant places. [2022-11-20 10:58:50,909 INFO L231 Difference]: Finished difference. Result has 250 places, 236 transitions, 731 flow [2022-11-20 10:58:50,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=731, PETRI_PLACES=250, PETRI_TRANSITIONS=236} [2022-11-20 10:58:50,910 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 26 predicate places. [2022-11-20 10:58:50,910 INFO L495 AbstractCegarLoop]: Abstraction has has 250 places, 236 transitions, 731 flow [2022-11-20 10:58:50,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-20 10:58:50,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:50,911 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:50,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-20 10:58:51,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:51,118 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1537999230, now seen corresponding path program 2 times [2022-11-20 10:58:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592004776] [2022-11-20 10:58:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:51,598 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:51,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:51,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592004776] [2022-11-20 10:58:51,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592004776] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:51,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931100700] [2022-11-20 10:58:51,599 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 10:58:51,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:51,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:51,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:51,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-20 10:58:51,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 10:58:51,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 10:58:51,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 10:58:51,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:52,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 10:58:52,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931100700] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:52,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-20 10:58:52,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 18 [2022-11-20 10:58:52,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548718297] [2022-11-20 10:58:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:58:52,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-20 10:58:52,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:58:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-20 10:58:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-20 10:58:52,498 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 264 [2022-11-20 10:58:52,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 236 transitions, 731 flow. Second operand has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-20 10:58:52,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:58:52,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 264 [2022-11-20 10:58:52,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:58:53,961 INFO L130 PetriNetUnfolder]: 2541/5519 cut-off events. [2022-11-20 10:58:53,961 INFO L131 PetriNetUnfolder]: For 6558/6558 co-relation queries the response was YES. [2022-11-20 10:58:53,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15114 conditions, 5519 events. 2541/5519 cut-off events. For 6558/6558 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 40079 event pairs, 884 based on Foata normal form. 114/5178 useless extension candidates. Maximal degree in co-relation 15093. Up to 3108 conditions per place. [2022-11-20 10:58:54,017 INFO L137 encePairwiseOnDemand]: 252/264 looper letters, 89 selfloop transitions, 11 changer transitions 0/262 dead transitions. [2022-11-20 10:58:54,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 262 transitions, 1065 flow [2022-11-20 10:58:54,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 10:58:54,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-20 10:58:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2053 transitions. [2022-11-20 10:58:54,024 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7776515151515152 [2022-11-20 10:58:54,025 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2053 transitions. [2022-11-20 10:58:54,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2053 transitions. [2022-11-20 10:58:54,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:58:54,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2053 transitions. [2022-11-20 10:58:54,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 205.3) internal successors, (2053), 10 states have internal predecessors, (2053), 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) [2022-11-20 10:58:54,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-20 10:58:54,040 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 264.0) internal successors, (2904), 11 states have internal predecessors, (2904), 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) [2022-11-20 10:58:54,040 INFO L175 Difference]: Start difference. First operand has 250 places, 236 transitions, 731 flow. Second operand 10 states and 2053 transitions. [2022-11-20 10:58:54,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 262 transitions, 1065 flow [2022-11-20 10:58:54,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 262 transitions, 1032 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-20 10:58:54,055 INFO L231 Difference]: Finished difference. Result has 253 places, 238 transitions, 747 flow [2022-11-20 10:58:54,055 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=264, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=747, PETRI_PLACES=253, PETRI_TRANSITIONS=238} [2022-11-20 10:58:54,056 INFO L288 CegarLoopForPetriNet]: 224 programPoint places, 29 predicate places. [2022-11-20 10:58:54,056 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 238 transitions, 747 flow [2022-11-20 10:58:54,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 202.77777777777777) internal successors, (1825), 9 states have internal predecessors, (1825), 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) [2022-11-20 10:58:54,057 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:58:54,058 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:58:54,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-20 10:58:54,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:54,265 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2022-11-20 10:58:54,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:58:54,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1348377743, now seen corresponding path program 1 times [2022-11-20 10:58:54,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:58:54,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338758608] [2022-11-20 10:58:54,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:54,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:58:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:56,584 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 10:58:56,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:58:56,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338758608] [2022-11-20 10:58:56,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338758608] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 10:58:56,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371618725] [2022-11-20 10:58:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:58:56,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 10:58:56,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:58:56,586 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 10:58:56,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5536e2f9-3e23-4514-a31b-c7e483c7457b/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-20 10:58:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:58:56,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-20 10:58:56,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 10:58:57,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-20 10:58:57,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:58:57,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:58:58,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:58:58,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 10:58:58,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:58:58,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:58:58,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 10:58:58,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-20 10:58:58,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 10:58:59,152 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:58:59,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 10:58:59,979 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_490) c_~X_0~0.base) .cse0))) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |c_thread4Thread1of1ForFork0_~#t6~0.base| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))))) is different from false [2022-11-20 10:59:00,012 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |c_thread4Thread1of1ForFork0_~#t5~0.base| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))))))) is different from false [2022-11-20 10:59:01,372 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= c_~s_2~0 (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ 1 c_~s_2~0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))))) is different from false [2022-11-20 10:59:03,897 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= (+ c_~t_4~0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse0) (+ c_~t_4~0 1 c_~s_2~0))))))))) is different from false [2022-11-20 10:59:05,374 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~X_0~0.offset 4)) (.cse0 (select (select |c_#memory_int| c_~X_0~0.base) (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (<= (+ .cse0 c_~s_2~0) (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int)) (or (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (< (select (select (store (store |c_#memory_int| |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1) (+ .cse0 1 c_~s_2~0))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)))))) is different from false [2022-11-20 10:59:05,746 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0))) (.cse1 (+ c_~X_0~0.offset 4))) (and (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (< (select (select (store (store .cse0 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1) (+ (select (select .cse0 c_~X_0~0.base) .cse2) 1 c_~s_2~0)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse3 (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (<= (+ (select (select .cse3 c_~X_0~0.base) .cse2) c_~s_2~0) (select (select (store (store .cse3 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse1)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))))) is different from false [2022-11-20 10:59:06,048 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~X_0~0.offset 4)) (.cse1 (+ c_~X_0~0.offset 4 (* 4 c_~i_3~0)))) (and (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_487) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (<= (+ (select (select .cse0 c_~X_0~0.base) .cse1) c_~s_2~0) (select (select (store (store .cse0 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse2)))) (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)))))) (forall ((v_ArrVal_487 (Array Int Int)) (|v_thread4Thread1of1ForFork0_~#t5~0.base_26| Int) (v_ArrVal_488 (Array Int Int))) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t5~0.base_26|)) (forall ((|v_thread4Thread1of1ForFork0_~#t6~0.base_26| Int)) (or (not (< |c_#StackHeapBarrier| |v_thread4Thread1of1ForFork0_~#t6~0.base_26|)) (forall ((v_ArrVal_490 (Array Int Int)) (v_ArrVal_489 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_thread1Thread1of1ForFork3_~#t2~0.base| v_ArrVal_487) |c_thread1Thread1of1ForFork3_~#t3~0.base| v_ArrVal_488))) (< (select (select (store (store .cse3 |v_thread4Thread1of1ForFork0_~#t5~0.base_26| v_ArrVal_489) |v_thread4Thread1of1ForFork0_~#t6~0.base_26| v_ArrVal_490) c_~X_0~0.base) .cse2) (+ (select (select .cse3 c_~X_0~0.base) .cse1) 1 c_~s_2~0)))))))))) is different from false [2022-11-20 11:00:18,969 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 11:00:18,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 58 [2022-11-20 11:00:19,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 764755836918 treesize of output 747039096822