./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:41:07,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:41:07,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:41:07,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:41:07,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:41:07,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:41:07,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:41:07,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:41:07,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:41:07,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:41:07,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:41:07,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:41:07,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:41:07,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:41:07,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:41:07,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:41:07,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:41:07,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:41:07,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:41:07,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:41:07,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:41:07,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:41:07,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:41:07,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:41:07,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:41:07,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:41:07,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:41:07,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:41:07,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:41:07,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:41:07,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:41:07,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:41:07,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:41:07,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:41:07,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:41:07,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:41:07,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:41:07,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:41:07,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:41:07,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:41:07,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:41:07,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-19 04:41:07,451 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:41:07,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:41:07,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:41:07,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:41:07,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:41:07,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:41:07,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:41:07,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:41:07,455 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:41:07,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:41:07,456 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:41:07,456 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:41:07,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:41:07,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:41:07,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:41:07,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:41:07,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:41:07,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:41:07,458 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-19 04:41:07,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:41:07,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:41:07,459 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:41:07,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:41:07,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:41:07,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:41:07,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:41:07,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:41:07,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:41:07,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:41:07,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:41:07,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:41:07,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:41:07,466 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:41:07,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:41:07,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:41:07,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:41:07,469 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_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a6d4c6573ed55a0a96a38de6d1424f0a577970a6c88cea50d5cb9a315d791fd [2021-11-19 04:41:07,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:41:07,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:41:07,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:41:07,829 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:41:07,831 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:41:07,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2021-11-19 04:41:07,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/data/0f9abdc5f/04913c50dd844d9093592b745ea56b91/FLAG66417c8b7 [2021-11-19 04:41:08,669 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:41:08,670 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/sv-benchmarks/c/goblint-regression/05-lval_ls_02-idx_nr.i [2021-11-19 04:41:08,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/data/0f9abdc5f/04913c50dd844d9093592b745ea56b91/FLAG66417c8b7 [2021-11-19 04:41:08,889 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/data/0f9abdc5f/04913c50dd844d9093592b745ea56b91 [2021-11-19 04:41:08,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:41:08,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:41:08,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:41:08,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:41:08,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:41:08,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:41:08" (1/1) ... [2021-11-19 04:41:08,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c124a65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:08, skipping insertion in model container [2021-11-19 04:41:08,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:41:08" (1/1) ... [2021-11-19 04:41:08,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:41:08,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:41:09,491 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:41:09,530 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:41:09,618 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:41:09,689 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:41:09,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09 WrapperNode [2021-11-19 04:41:09,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:41:09,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:41:09,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:41:09,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:41:09,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,781 INFO L137 Inliner]: procedures = 160, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2021-11-19 04:41:09,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:41:09,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:41:09,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:41:09,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:41:09,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:41:09,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:41:09,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:41:09,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:41:09,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (1/1) ... [2021-11-19 04:41:09,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:41:09,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:41:09,906 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:41:09,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:41:09,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:41:09,974 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-19 04:41:09,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:41:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-19 04:41:09,975 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-19 04:41:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:41:09,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:41:09,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:41:09,977 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-19 04:41:10,192 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:41:10,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:41:10,396 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:41:10,405 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:41:10,405 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:41:10,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:41:10 BoogieIcfgContainer [2021-11-19 04:41:10,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:41:10,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:41:10,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:41:10,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:41:10,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:41:08" (1/3) ... [2021-11-19 04:41:10,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55238b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:41:10, skipping insertion in model container [2021-11-19 04:41:10,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:41:09" (2/3) ... [2021-11-19 04:41:10,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55238b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:41:10, skipping insertion in model container [2021-11-19 04:41:10,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:41:10" (3/3) ... [2021-11-19 04:41:10,426 INFO L111 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_02-idx_nr.i [2021-11-19 04:41:10,439 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-19 04:41:10,440 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:41:10,440 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-19 04:41:10,440 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-19 04:41:10,473 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,473 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,474 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,474 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,474 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,475 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,475 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,475 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,476 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,477 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,478 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,479 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,480 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,481 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,482 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,483 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,486 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,487 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,487 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,488 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,488 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-19 04:41:10,491 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-19 04:41:10,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:41:10,561 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 04:41:10,562 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-19 04:41:10,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 133 flow [2021-11-19 04:41:10,617 INFO L129 PetriNetUnfolder]: 2/63 cut-off events. [2021-11-19 04:41:10,617 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:41:10,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 63 events. 2/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2021-11-19 04:41:10,620 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 133 flow [2021-11-19 04:41:10,626 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 63 transitions, 129 flow [2021-11-19 04:41:10,638 INFO L129 PetriNetUnfolder]: 2/32 cut-off events. [2021-11-19 04:41:10,641 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:41:10,641 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:41:10,643 INFO L254 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] [2021-11-19 04:41:10,643 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 04:41:10,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:10,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1162338945, now seen corresponding path program 1 times [2021-11-19 04:41:10,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:10,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334940235] [2021-11-19 04:41:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:10,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:10,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:10,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:10,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334940235] [2021-11-19 04:41:10,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334940235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:41:10,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:41:10,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:41:10,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744520913] [2021-11-19 04:41:10,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:41:10,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:41:10,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:41:10,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:41:10,938 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 64 [2021-11-19 04:41:10,942 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 63 transitions, 129 flow. Second operand has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2021-11-19 04:41:10,942 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:41:10,942 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 64 [2021-11-19 04:41:10,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:41:10,980 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2021-11-19 04:41:10,982 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:41:10,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 62 events. 1/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 1/58 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2021-11-19 04:41:10,984 INFO L132 encePairwiseOnDemand]: 63/64 looper letters, 1 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2021-11-19 04:41:10,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 62 transitions, 129 flow [2021-11-19 04:41:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:41:10,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-11-19 04:41:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 126 transitions. [2021-11-19 04:41:10,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.984375 [2021-11-19 04:41:10,997 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 126 transitions. [2021-11-19 04:41:10,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 126 transitions. [2021-11-19 04:41:10,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:11,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 126 transitions. [2021-11-19 04:41:11,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2021-11-19 04:41:11,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2021-11-19 04:41:11,011 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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) [2021-11-19 04:41:11,012 INFO L186 Difference]: Start difference. First operand has 65 places, 63 transitions, 129 flow. Second operand 2 states and 126 transitions. [2021-11-19 04:41:11,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 62 transitions, 129 flow [2021-11-19 04:41:11,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:41:11,027 INFO L242 Difference]: Finished difference. Result has 65 places, 62 transitions, 126 flow [2021-11-19 04:41:11,036 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=126, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2021-11-19 04:41:11,041 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2021-11-19 04:41:11,043 INFO L470 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 126 flow [2021-11-19 04:41:11,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2021-11-19 04:41:11,045 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:41:11,045 INFO L254 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] [2021-11-19 04:41:11,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:41:11,046 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 04:41:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:11,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1335676992, now seen corresponding path program 1 times [2021-11-19 04:41:11,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:11,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533230063] [2021-11-19 04:41:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:11,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:11,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:11,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533230063] [2021-11-19 04:41:11,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533230063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:41:11,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:41:11,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:41:11,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273256462] [2021-11-19 04:41:11,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:41:11,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:41:11,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:11,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:41:11,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:41:11,190 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 64 [2021-11-19 04:41:11,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:41:11,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:41:11,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 64 [2021-11-19 04:41:11,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:41:11,248 INFO L129 PetriNetUnfolder]: 1/66 cut-off events. [2021-11-19 04:41:11,248 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-19 04:41:11,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 66 events. 1/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 80. Up to 9 conditions per place. [2021-11-19 04:41:11,250 INFO L132 encePairwiseOnDemand]: 61/64 looper letters, 10 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2021-11-19 04:41:11,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 66 transitions, 158 flow [2021-11-19 04:41:11,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:41:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:41:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2021-11-19 04:41:11,254 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9270833333333334 [2021-11-19 04:41:11,254 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 178 transitions. [2021-11-19 04:41:11,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 178 transitions. [2021-11-19 04:41:11,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:11,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 178 transitions. [2021-11-19 04:41:11,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-11-19 04:41:11,261 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:11,262 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:11,262 INFO L186 Difference]: Start difference. First operand has 65 places, 62 transitions, 126 flow. Second operand 3 states and 178 transitions. [2021-11-19 04:41:11,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 66 transitions, 158 flow [2021-11-19 04:41:11,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 66 transitions, 158 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-19 04:41:11,267 INFO L242 Difference]: Finished difference. Result has 68 places, 63 transitions, 138 flow [2021-11-19 04:41:11,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=68, PETRI_TRANSITIONS=63} [2021-11-19 04:41:11,269 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 3 predicate places. [2021-11-19 04:41:11,269 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 63 transitions, 138 flow [2021-11-19 04:41:11,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.333333333333336) internal successors, (169), 3 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:41:11,270 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:41:11,270 INFO L254 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] [2021-11-19 04:41:11,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:41:11,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 04:41:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:11,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1739777644, now seen corresponding path program 1 times [2021-11-19 04:41:11,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:11,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450950625] [2021-11-19 04:41:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:11,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:11,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:11,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450950625] [2021-11-19 04:41:11,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450950625] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:41:11,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709701756] [2021-11-19 04:41:11,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:11,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:11,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:41:11,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:41:11,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:41:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:11,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:41:11,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:41:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:41:11,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:41:11,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709701756] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:41:11,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:41:11,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-19 04:41:11,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506917207] [2021-11-19 04:41:11,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:41:11,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:41:11,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:11,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:41:11,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:41:11,629 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 64 [2021-11-19 04:41:11,630 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 63 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-19 04:41:11,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:41:11,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 64 [2021-11-19 04:41:11,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:41:11,771 INFO L129 PetriNetUnfolder]: 38/228 cut-off events. [2021-11-19 04:41:11,771 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-19 04:41:11,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 228 events. 38/228 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 944 event pairs, 15 based on Foata normal form. 0/204 useless extension candidates. Maximal degree in co-relation 326. Up to 54 conditions per place. [2021-11-19 04:41:11,777 INFO L132 encePairwiseOnDemand]: 56/64 looper letters, 17 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2021-11-19 04:41:11,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 73 transitions, 204 flow [2021-11-19 04:41:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:41:11,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:41:11,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2021-11-19 04:41:11,781 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9114583333333334 [2021-11-19 04:41:11,781 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2021-11-19 04:41:11,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2021-11-19 04:41:11,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:11,782 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2021-11-19 04:41:11,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-11-19 04:41:11,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:11,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:11,787 INFO L186 Difference]: Start difference. First operand has 68 places, 63 transitions, 138 flow. Second operand 3 states and 175 transitions. [2021-11-19 04:41:11,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 73 transitions, 204 flow [2021-11-19 04:41:11,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 73 transitions, 202 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-19 04:41:11,792 INFO L242 Difference]: Finished difference. Result has 71 places, 69 transitions, 188 flow [2021-11-19 04:41:11,792 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2021-11-19 04:41:11,793 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 6 predicate places. [2021-11-19 04:41:11,794 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 188 flow [2021-11-19 04:41:11,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-19 04:41:11,794 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:41:11,795 INFO L254 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] [2021-11-19 04:41:11,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:41:12,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:12,014 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 04:41:12,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:12,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1063216284, now seen corresponding path program 1 times [2021-11-19 04:41:12,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:12,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194182633] [2021-11-19 04:41:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:12,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:12,125 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:12,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:12,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194182633] [2021-11-19 04:41:12,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194182633] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:41:12,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281446053] [2021-11-19 04:41:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:12,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:12,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:41:12,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:41:12,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:41:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:12,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:41:12,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:41:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:41:12,366 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:41:12,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281446053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:41:12,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:41:12,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-19 04:41:12,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030084392] [2021-11-19 04:41:12,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:41:12,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:41:12,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:12,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:41:12,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:41:12,371 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2021-11-19 04:41:12,372 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-19 04:41:12,372 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:41:12,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2021-11-19 04:41:12,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:41:12,515 INFO L129 PetriNetUnfolder]: 56/308 cut-off events. [2021-11-19 04:41:12,515 INFO L130 PetriNetUnfolder]: For 85/90 co-relation queries the response was YES. [2021-11-19 04:41:12,520 INFO L84 FinitePrefix]: Finished finitePrefix Result has 544 conditions, 308 events. 56/308 cut-off events. For 85/90 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1528 event pairs, 23 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 538. Up to 102 conditions per place. [2021-11-19 04:41:12,522 INFO L132 encePairwiseOnDemand]: 58/64 looper letters, 23 selfloop transitions, 7 changer transitions 1/79 dead transitions. [2021-11-19 04:41:12,522 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 79 transitions, 288 flow [2021-11-19 04:41:12,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:41:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:41:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2021-11-19 04:41:12,526 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875 [2021-11-19 04:41:12,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 168 transitions. [2021-11-19 04:41:12,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 168 transitions. [2021-11-19 04:41:12,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:12,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 168 transitions. [2021-11-19 04:41:12,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2021-11-19 04:41:12,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:12,532 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:12,532 INFO L186 Difference]: Start difference. First operand has 71 places, 69 transitions, 188 flow. Second operand 3 states and 168 transitions. [2021-11-19 04:41:12,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 79 transitions, 288 flow [2021-11-19 04:41:12,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 79 transitions, 270 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-19 04:41:12,546 INFO L242 Difference]: Finished difference. Result has 73 places, 74 transitions, 232 flow [2021-11-19 04:41:12,547 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=73, PETRI_TRANSITIONS=74} [2021-11-19 04:41:12,550 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 8 predicate places. [2021-11-19 04:41:12,550 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 74 transitions, 232 flow [2021-11-19 04:41:12,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2021-11-19 04:41:12,551 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:41:12,551 INFO L254 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] [2021-11-19 04:41:12,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-19 04:41:12,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:12,752 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 04:41:12,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:12,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2062404002, now seen corresponding path program 1 times [2021-11-19 04:41:12,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:12,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813535075] [2021-11-19 04:41:12,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:12,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:12,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:12,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:12,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813535075] [2021-11-19 04:41:12,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813535075] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:41:12,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448745776] [2021-11-19 04:41:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:12,844 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:12,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:41:12,859 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:41:12,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 04:41:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:12,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:41:12,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:41:13,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:41:13,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:41:13,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448745776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:41:13,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:41:13,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2021-11-19 04:41:13,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781309072] [2021-11-19 04:41:13,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:41:13,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:41:13,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:13,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:41:13,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:41:13,093 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 64 [2021-11-19 04:41:13,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 74 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-19 04:41:13,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:41:13,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 64 [2021-11-19 04:41:13,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:41:13,270 INFO L129 PetriNetUnfolder]: 58/296 cut-off events. [2021-11-19 04:41:13,271 INFO L130 PetriNetUnfolder]: For 141/143 co-relation queries the response was YES. [2021-11-19 04:41:13,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 296 events. 58/296 cut-off events. For 141/143 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1447 event pairs, 17 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 606. Up to 101 conditions per place. [2021-11-19 04:41:13,280 INFO L132 encePairwiseOnDemand]: 58/64 looper letters, 21 selfloop transitions, 7 changer transitions 10/85 dead transitions. [2021-11-19 04:41:13,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 85 transitions, 356 flow [2021-11-19 04:41:13,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:41:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:41:13,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2021-11-19 04:41:13,291 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8645833333333334 [2021-11-19 04:41:13,291 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 166 transitions. [2021-11-19 04:41:13,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 166 transitions. [2021-11-19 04:41:13,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:13,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 166 transitions. [2021-11-19 04:41:13,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2021-11-19 04:41:13,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:13,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:13,300 INFO L186 Difference]: Start difference. First operand has 73 places, 74 transitions, 232 flow. Second operand 3 states and 166 transitions. [2021-11-19 04:41:13,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 85 transitions, 356 flow [2021-11-19 04:41:13,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 85 transitions, 336 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-19 04:41:13,318 INFO L242 Difference]: Finished difference. Result has 75 places, 73 transitions, 250 flow [2021-11-19 04:41:13,323 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=75, PETRI_TRANSITIONS=73} [2021-11-19 04:41:13,325 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2021-11-19 04:41:13,327 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 73 transitions, 250 flow [2021-11-19 04:41:13,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2021-11-19 04:41:13,329 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-19 04:41:13,329 INFO L254 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] [2021-11-19 04:41:13,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:41:13,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:13,554 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-19 04:41:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:41:13,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1156220536, now seen corresponding path program 1 times [2021-11-19 04:41:13,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:41:13,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518537487] [2021-11-19 04:41:13,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:13,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:41:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:41:13,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:41:13,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518537487] [2021-11-19 04:41:13,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518537487] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:41:13,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907462793] [2021-11-19 04:41:13,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:41:13,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:13,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:41:13,664 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:41:13,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 04:41:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:41:13,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:41:13,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:41:13,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-19 04:41:13,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:41:13,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:41:13,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907462793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:41:13,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:41:13,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2021-11-19 04:41:13,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574961511] [2021-11-19 04:41:13,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:41:13,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:41:13,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:41:13,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:41:13,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:41:13,950 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 64 [2021-11-19 04:41:13,951 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 73 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-11-19 04:41:13,951 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-19 04:41:13,951 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 64 [2021-11-19 04:41:13,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-19 04:41:13,982 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2021-11-19 04:41:13,983 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-11-19 04:41:13,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 88 events. 2/88 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 1 based on Foata normal form. 2/90 useless extension candidates. Maximal degree in co-relation 143. Up to 10 conditions per place. [2021-11-19 04:41:13,986 INFO L132 encePairwiseOnDemand]: 60/64 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2021-11-19 04:41:13,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 59 transitions, 180 flow [2021-11-19 04:41:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:41:13,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-19 04:41:13,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2021-11-19 04:41:13,994 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9114583333333334 [2021-11-19 04:41:13,994 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2021-11-19 04:41:13,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2021-11-19 04:41:13,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:41:13,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2021-11-19 04:41:13,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2021-11-19 04:41:13,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:13,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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) [2021-11-19 04:41:13,999 INFO L186 Difference]: Start difference. First operand has 75 places, 73 transitions, 250 flow. Second operand 3 states and 175 transitions. [2021-11-19 04:41:13,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 59 transitions, 180 flow [2021-11-19 04:41:14,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 59 transitions, 144 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-11-19 04:41:14,005 INFO L242 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2021-11-19 04:41:14,005 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2021-11-19 04:41:14,008 INFO L334 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2021-11-19 04:41:14,008 INFO L470 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2021-11-19 04:41:14,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 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) [2021-11-19 04:41:14,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2021-11-19 04:41:14,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2021-11-19 04:41:14,012 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 7 remaining) [2021-11-19 04:41:14,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2021-11-19 04:41:14,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2021-11-19 04:41:14,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2021-11-19 04:41:14,013 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2021-11-19 04:41:14,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:41:14,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:41:14,231 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-19 04:41:14,235 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-19 04:41:14,235 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:41:14,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:41:14 BasicIcfg [2021-11-19 04:41:14,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:41:14,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:41:14,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:41:14,241 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:41:14,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:41:10" (3/4) ... [2021-11-19 04:41:14,244 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 04:41:14,251 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-19 04:41:14,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-19 04:41:14,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-19 04:41:14,256 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 04:41:14,293 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:41:14,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:41:14,294 INFO L158 Benchmark]: Toolchain (without parser) took 5398.22ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.8MB in the beginning and 37.0MB in the end (delta: 8.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,295 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:41:14,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 793.01ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.7MB in the beginning and 66.8MB in the end (delta: -21.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.54ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 65.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,297 INFO L158 Benchmark]: Boogie Preprocessor took 71.63ms. Allocated memory is still 98.6MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,297 INFO L158 Benchmark]: RCFGBuilder took 552.55ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 52.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,298 INFO L158 Benchmark]: TraceAbstraction took 3826.94ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 39.7MB in the end (delta: 12.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,298 INFO L158 Benchmark]: Witness Printer took 52.68ms. Allocated memory is still 98.6MB. Free memory was 39.7MB in the beginning and 37.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:41:14,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 793.01ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 45.7MB in the beginning and 66.8MB in the end (delta: -21.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.54ms. Allocated memory is still 98.6MB. Free memory was 66.8MB in the beginning and 65.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.63ms. Allocated memory is still 98.6MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.55ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 52.5MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3826.94ms. Allocated memory is still 98.6MB. Free memory was 52.1MB in the beginning and 39.7MB in the end (delta: 12.3MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 52.68ms. Allocated memory is still 98.6MB. Free memory was 39.7MB in the beginning and 37.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 82 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 50 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-19 04:41:14,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9807647-9b74-408e-90d6-f3ed5281ee43/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE