./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R --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 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:32:36,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:32:36,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:32:36,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:32:36,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:32:36,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:32:36,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:32:36,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:32:36,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:32:36,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:32:36,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:32:36,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:32:36,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:32:36,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:32:36,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:32:36,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:32:36,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:32:36,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:32:36,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:32:36,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:32:36,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:32:36,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:32:36,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:32:36,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:32:36,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:32:36,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:32:36,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:32:36,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:32:36,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:32:36,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:32:36,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:32:36,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:32:36,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:32:36,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:32:36,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:32:36,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:32:36,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:32:36,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:32:36,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:32:36,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:32:36,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:32:36,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:32:36,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:32:36,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:32:36,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:32:36,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:32:36,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:32:36,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:32:36,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:32:36,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:32:36,473 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:32:36,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:32:36,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:32:36,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:32:36,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:32:36,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:32:36,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:32:36,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:32:36,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:32:36,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:32:36,476 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:32:36,476 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:32:36,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:32:36,477 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:32:36,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:32:36,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:32:36,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:32:36,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:32:36,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:36,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:32:36,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:32:36,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:32:36,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:32:36,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:32:36,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:32:36,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:32:36,482 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:32:36,482 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:32:36,483 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2022-11-25 17:32:36,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:32:36,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:32:36,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:32:36,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:32:36,902 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:32:36,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-25 17:32:40,320 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:32:40,701 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:32:40,701 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-25 17:32:40,732 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data/07f6db4d8/31342f0f3c3c4f80aa9593ba271ce935/FLAGfbe184b8d [2022-11-25 17:32:40,749 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data/07f6db4d8/31342f0f3c3c4f80aa9593ba271ce935 [2022-11-25 17:32:40,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:32:40,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:32:40,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:40,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:32:40,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:32:40,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:40" (1/1) ... [2022-11-25 17:32:40,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753a6f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:40, skipping insertion in model container [2022-11-25 17:32:40,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:40" (1/1) ... [2022-11-25 17:32:40,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:32:40,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:41,390 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-25 17:32:41,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:41,415 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:32:41,478 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-25 17:32:41,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:41,524 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:32:41,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41 WrapperNode [2022-11-25 17:32:41,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:41,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:41,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:32:41,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:32:41,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,634 INFO L138 Inliner]: procedures = 170, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-25 17:32:41,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:41,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:32:41,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:32:41,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:32:41,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,708 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:32:41,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:32:41,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:32:41,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:32:41,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (1/1) ... [2022-11-25 17:32:41,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:41,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:41,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:32:41,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:32:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:32:41,826 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 17:32:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 17:32:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:32:41,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:32:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:32:41,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:32:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:32:41,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:32:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:32:41,831 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:32:42,096 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:32:42,113 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:32:42,729 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:32:43,031 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:32:43,031 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 17:32:43,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:43 BoogieIcfgContainer [2022-11-25 17:32:43,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:32:43,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:32:43,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:32:43,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:32:43,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:32:40" (1/3) ... [2022-11-25 17:32:43,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaed930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:43, skipping insertion in model container [2022-11-25 17:32:43,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:41" (2/3) ... [2022-11-25 17:32:43,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aaed930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:43, skipping insertion in model container [2022-11-25 17:32:43,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:43" (3/3) ... [2022-11-25 17:32:43,051 INFO L112 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2022-11-25 17:32:43,082 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:32:43,096 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:32:43,096 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:32:43,096 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:32:43,206 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:32:43,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-11-25 17:32:43,379 INFO L130 PetriNetUnfolder]: 12/140 cut-off events. [2022-11-25 17:32:43,380 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:32:43,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-11-25 17:32:43,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 129 transitions, 263 flow [2022-11-25 17:32:43,403 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 129 transitions, 263 flow [2022-11-25 17:32:43,408 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:32:43,443 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-25 17:32:43,447 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-25 17:32:43,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-11-25 17:32:43,497 INFO L130 PetriNetUnfolder]: 12/140 cut-off events. [2022-11-25 17:32:43,498 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:32:43,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2022-11-25 17:32:43,502 INFO L119 LiptonReduction]: Number of co-enabled transitions 2520 [2022-11-25 17:33:16,267 INFO L134 LiptonReduction]: Checked pairs total: 2596 [2022-11-25 17:33:16,268 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-25 17:33:16,288 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:33:16,297 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78045035, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:33:16,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-25 17:33:16,302 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-11-25 17:33:16,303 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:33:16,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:33:16,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:33:16,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:33:16,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:16,312 INFO L85 PathProgramCache]: Analyzing trace with hash 624376936, now seen corresponding path program 1 times [2022-11-25 17:33:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:16,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656323678] [2022-11-25 17:33:16,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:16,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:33:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:33:16,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:33:16,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656323678] [2022-11-25 17:33:16,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656323678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:33:16,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:33:16,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:33:16,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714246939] [2022-11-25 17:33:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:33:16,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:33:16,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:33:16,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:33:16,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:33:16,705 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 271 [2022-11-25 17:33:16,709 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 26 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:16,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:33:16,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 271 [2022-11-25 17:33:16,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:33:16,887 INFO L130 PetriNetUnfolder]: 25/56 cut-off events. [2022-11-25 17:33:16,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:33:16,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 56 events. 25/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 16 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 102. Up to 55 conditions per place. [2022-11-25 17:33:16,889 INFO L137 encePairwiseOnDemand]: 261/271 looper letters, 15 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2022-11-25 17:33:16,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 16 transitions, 67 flow [2022-11-25 17:33:16,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:33:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:33:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 255 transitions. [2022-11-25 17:33:16,917 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.470479704797048 [2022-11-25 17:33:16,918 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 255 transitions. [2022-11-25 17:33:16,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 255 transitions. [2022-11-25 17:33:16,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:33:16,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 255 transitions. [2022-11-25 17:33:16,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 127.5) internal successors, (255), 2 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:16,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:16,943 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:16,945 INFO L175 Difference]: Start difference. First operand has 24 places, 26 transitions, 57 flow. Second operand 2 states and 255 transitions. [2022-11-25 17:33:16,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 16 transitions, 67 flow [2022-11-25 17:33:16,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 16 transitions, 67 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:33:16,951 INFO L231 Difference]: Finished difference. Result has 17 places, 16 transitions, 37 flow [2022-11-25 17:33:16,953 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=37, PETRI_PLACES=17, PETRI_TRANSITIONS=16} [2022-11-25 17:33:16,958 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, -7 predicate places. [2022-11-25 17:33:16,958 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 16 transitions, 37 flow [2022-11-25 17:33:16,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:33:16,959 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:33:16,959 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 17:33:16,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:33:16,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:33:16,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:33:16,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2119270074, now seen corresponding path program 1 times [2022-11-25 17:33:16,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:33:16,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303272865] [2022-11-25 17:33:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:33:16,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:33:16,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:33:16,992 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:33:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:33:17,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:33:17,034 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:33:17,036 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-25 17:33:17,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-25 17:33:17,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-25 17:33:17,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-25 17:33:17,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-25 17:33:17,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-25 17:33:17,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-25 17:33:17,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-25 17:33:17,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-25 17:33:17,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-25 17:33:17,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-25 17:33:17,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-11-25 17:33:17,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-25 17:33:17,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-25 17:33:17,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-25 17:33:17,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-25 17:33:17,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-25 17:33:17,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:33:17,044 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:33:17,048 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:33:17,048 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:33:17,123 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:33:17,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 220 transitions, 452 flow [2022-11-25 17:33:17,197 INFO L130 PetriNetUnfolder]: 23/244 cut-off events. [2022-11-25 17:33:17,197 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:33:17,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 244 events. 23/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 661 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 193. Up to 6 conditions per place. [2022-11-25 17:33:17,202 INFO L82 GeneralOperation]: Start removeDead. Operand has 204 places, 220 transitions, 452 flow [2022-11-25 17:33:17,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 204 places, 220 transitions, 452 flow [2022-11-25 17:33:17,207 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:33:17,207 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 204 places, 220 transitions, 452 flow [2022-11-25 17:33:17,207 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 204 places, 220 transitions, 452 flow [2022-11-25 17:33:17,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 204 places, 220 transitions, 452 flow [2022-11-25 17:33:17,297 INFO L130 PetriNetUnfolder]: 23/244 cut-off events. [2022-11-25 17:33:17,297 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:33:17,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 244 events. 23/244 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 661 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 193. Up to 6 conditions per place. [2022-11-25 17:33:17,316 INFO L119 LiptonReduction]: Number of co-enabled transitions 21420 [2022-11-25 17:33:34,658 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 108 DAG size of output: 95 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:33:42,784 WARN L233 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 112 DAG size of output: 99 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:34:25,036 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 108 DAG size of output: 95 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:34:35,384 WARN L233 SmtUtils]: Spent 6.54s on a formula simplification. DAG size of input: 112 DAG size of output: 99 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:40:12,377 INFO L134 LiptonReduction]: Checked pairs total: 95407 [2022-11-25 17:40:12,378 INFO L136 LiptonReduction]: Total number of compositions: 250 [2022-11-25 17:40:12,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:12,381 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78045035, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:12,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-25 17:40:12,385 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-11-25 17:40:12,385 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:40:12,385 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:12,385 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:40:12,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-25 17:40:12,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:12,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1081986316, now seen corresponding path program 1 times [2022-11-25 17:40:12,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:12,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571357207] [2022-11-25 17:40:12,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:12,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:12,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:12,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:12,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571357207] [2022-11-25 17:40:12,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571357207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:12,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:12,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:40:12,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755085580] [2022-11-25 17:40:12,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:12,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:40:12,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:12,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:40:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:40:12,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 470 [2022-11-25 17:40:12,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 90 transitions, 192 flow. Second operand has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:12,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:12,529 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 470 [2022-11-25 17:40:12,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:12,909 INFO L130 PetriNetUnfolder]: 478/1278 cut-off events. [2022-11-25 17:40:12,909 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-11-25 17:40:12,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1278 events. 478/1278 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8520 event pairs, 340 based on Foata normal form. 40/1138 useless extension candidates. Maximal degree in co-relation 1016. Up to 745 conditions per place. [2022-11-25 17:40:12,918 INFO L137 encePairwiseOnDemand]: 455/470 looper letters, 30 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2022-11-25 17:40:12,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 222 flow [2022-11-25 17:40:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:40:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:40:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 433 transitions. [2022-11-25 17:40:12,924 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46063829787234045 [2022-11-25 17:40:12,924 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 433 transitions. [2022-11-25 17:40:12,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 433 transitions. [2022-11-25 17:40:12,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:12,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 433 transitions. [2022-11-25 17:40:12,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 216.5) internal successors, (433), 2 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:12,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 470.0) internal successors, (1410), 3 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:12,932 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 470.0) internal successors, (1410), 3 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:12,932 INFO L175 Difference]: Start difference. First operand has 83 places, 90 transitions, 192 flow. Second operand 2 states and 433 transitions. [2022-11-25 17:40:12,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 222 flow [2022-11-25 17:40:12,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 75 transitions, 220 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-11-25 17:40:12,936 INFO L231 Difference]: Finished difference. Result has 75 places, 75 transitions, 160 flow [2022-11-25 17:40:12,936 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=160, PETRI_PLACES=75, PETRI_TRANSITIONS=75} [2022-11-25 17:40:12,937 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, -8 predicate places. [2022-11-25 17:40:12,938 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 75 transitions, 160 flow [2022-11-25 17:40:12,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:12,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:12,939 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:12,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:40:12,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-25 17:40:12,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:12,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1342201848, now seen corresponding path program 1 times [2022-11-25 17:40:12,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:12,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386819501] [2022-11-25 17:40:12,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:12,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:40:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:40:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:40:13,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386819501] [2022-11-25 17:40:13,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386819501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:40:13,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:40:13,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:40:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322324584] [2022-11-25 17:40:13,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:40:13,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:40:13,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:40:13,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:40:13,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:40:14,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 470 [2022-11-25 17:40:14,861 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 75 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:14,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:40:14,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 470 [2022-11-25 17:40:14,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:40:17,679 INFO L130 PetriNetUnfolder]: 764/1868 cut-off events. [2022-11-25 17:40:17,679 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-11-25 17:40:17,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3132 conditions, 1868 events. 764/1868 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 13251 event pairs, 394 based on Foata normal form. 0/1629 useless extension candidates. Maximal degree in co-relation 3127. Up to 963 conditions per place. [2022-11-25 17:40:17,691 INFO L137 encePairwiseOnDemand]: 463/470 looper letters, 90 selfloop transitions, 9 changer transitions 0/139 dead transitions. [2022-11-25 17:40:17,691 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 139 transitions, 506 flow [2022-11-25 17:40:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:40:17,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:40:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1198 transitions. [2022-11-25 17:40:17,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.424822695035461 [2022-11-25 17:40:17,696 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1198 transitions. [2022-11-25 17:40:17,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1198 transitions. [2022-11-25 17:40:17,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:40:17,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1198 transitions. [2022-11-25 17:40:17,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.66666666666666) internal successors, (1198), 6 states have internal predecessors, (1198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:17,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:17,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:17,707 INFO L175 Difference]: Start difference. First operand has 75 places, 75 transitions, 160 flow. Second operand 6 states and 1198 transitions. [2022-11-25 17:40:17,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 139 transitions, 506 flow [2022-11-25 17:40:17,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 139 transitions, 506 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:40:17,711 INFO L231 Difference]: Finished difference. Result has 84 places, 83 transitions, 218 flow [2022-11-25 17:40:17,711 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=218, PETRI_PLACES=84, PETRI_TRANSITIONS=83} [2022-11-25 17:40:17,712 INFO L288 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2022-11-25 17:40:17,712 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 83 transitions, 218 flow [2022-11-25 17:40:17,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 184.66666666666666) internal successors, (1108), 6 states have internal predecessors, (1108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:40:17,713 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:40:17,714 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:40:17,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:40:17,714 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-25 17:40:17,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:17,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1152357898, now seen corresponding path program 1 times [2022-11-25 17:40:17,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:17,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069279647] [2022-11-25 17:40:17,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:17,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:40:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:40:17,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:40:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:40:17,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:40:17,742 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:40:17,742 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-25 17:40:17,742 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-11-25 17:40:17,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-11-25 17:40:17,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-11-25 17:40:17,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-11-25 17:40:17,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-11-25 17:40:17,743 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-11-25 17:40:17,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-11-25 17:40:17,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-11-25 17:40:17,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-11-25 17:40:17,744 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-11-25 17:40:17,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-11-25 17:40:17,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-11-25 17:40:17,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-11-25 17:40:17,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-11-25 17:40:17,745 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-11-25 17:40:17,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-11-25 17:40:17,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-11-25 17:40:17,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-11-25 17:40:17,746 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-11-25 17:40:17,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-11-25 17:40:17,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-11-25 17:40:17,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-11-25 17:40:17,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-11-25 17:40:17,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-11-25 17:40:17,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:40:17,748 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 17:40:17,749 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:40:17,749 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-25 17:40:17,839 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:40:17,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 311 transitions, 643 flow [2022-11-25 17:40:17,921 INFO L130 PetriNetUnfolder]: 34/348 cut-off events. [2022-11-25 17:40:17,921 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 17:40:17,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 348 events. 34/348 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1188 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 283. Up to 8 conditions per place. [2022-11-25 17:40:17,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 311 transitions, 643 flow [2022-11-25 17:40:17,930 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 311 transitions, 643 flow [2022-11-25 17:40:17,931 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:40:17,931 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 311 transitions, 643 flow [2022-11-25 17:40:17,932 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 311 transitions, 643 flow [2022-11-25 17:40:17,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 311 transitions, 643 flow [2022-11-25 17:40:17,999 INFO L130 PetriNetUnfolder]: 34/348 cut-off events. [2022-11-25 17:40:17,999 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-25 17:40:18,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 348 events. 34/348 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1188 event pairs, 0 based on Foata normal form. 0/286 useless extension candidates. Maximal degree in co-relation 283. Up to 8 conditions per place. [2022-11-25 17:40:18,028 INFO L119 LiptonReduction]: Number of co-enabled transitions 56700 [2022-11-25 17:41:25,192 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 112 DAG size of output: 99 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:44:19,199 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-25 17:44:19,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-25 17:44:19,200 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1164) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:186) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:141) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:119) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.SemanticIndependenceRelation.isIndependent(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.UnionIndependenceRelation.isIndependent(UnionIndependenceRelation.java:73) at de.uni_freiburg.informatik.ultimate.automata.partialorder.independence.CachedIndependenceRelation.isIndependent(CachedIndependenceRelation.java:113) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$0(LiptonReduction.java:454) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1642) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isLeftMover(LiptonReduction.java:454) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:409) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:312) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:129) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:95) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.initialabstraction.PetriLbeInitialAbstractionProvider.getInitialAbstraction(PetriLbeInitialAbstractionProvider.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructInitialAbstraction(CegarLoopFactory.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.createPetriAbstraction(CegarLoopFactory.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopFactory.constructCegarLoop(CegarLoopFactory.java:187) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 49 more [2022-11-25 17:44:19,204 INFO L158 Benchmark]: Toolchain (without parser) took 698450.43ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 122.5MB in the beginning and 65.8MB in the end (delta: 56.8MB). Peak memory consumption was 162.3MB. Max. memory is 16.1GB. [2022-11-25 17:44:19,205 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:44:19,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 769.38ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 102.0MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 17:44:19,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.24ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:44:19,205 INFO L158 Benchmark]: Boogie Preprocessor took 84.06ms. Allocated memory is still 159.4MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:44:19,206 INFO L158 Benchmark]: RCFGBuilder took 1313.80ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 96.9MB in the beginning and 178.4MB in the end (delta: -81.5MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2022-11-25 17:44:19,206 INFO L158 Benchmark]: TraceAbstraction took 696163.89ms. Allocated memory is still 216.0MB. Free memory was 177.7MB in the beginning and 65.8MB in the end (delta: 112.0MB). Peak memory consumption was 159.3MB. Max. memory is 16.1GB. [2022-11-25 17:44:19,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 159.4MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 769.38ms. Allocated memory is still 159.4MB. Free memory was 122.0MB in the beginning and 102.0MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.24ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 99.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.06ms. Allocated memory is still 159.4MB. Free memory was 99.0MB in the beginning and 96.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1313.80ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 96.9MB in the beginning and 178.4MB in the end (delta: -81.5MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * TraceAbstraction took 696163.89ms. Allocated memory is still 216.0MB. Free memory was 177.7MB in the beginning and 65.8MB in the end (delta: 112.0MB). Peak memory consumption was 159.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8s, 121 PlacesBefore, 24 PlacesAfterwards, 129 TransitionsBefore, 26 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 93 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 6 ChoiceCompositions, 142 TotalNumberOfCompositions, 2596 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2217, independent: 2146, independent conditional: 0, independent unconditional: 2146, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1648, independent: 1625, independent conditional: 0, independent unconditional: 1625, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1648, independent: 1615, independent conditional: 0, independent unconditional: 1615, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 33, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8533, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 7846, unknown conditional: 0, unknown unconditional: 7846] ], Cache Queries: [ total: 2217, independent: 521, independent conditional: 0, independent unconditional: 521, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 1667, unknown conditional: 0, unknown unconditional: 1667] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 415.2s, 204 PlacesBefore, 83 PlacesAfterwards, 220 TransitionsBefore, 90 TransitionsAfterwards, 21420 CoEnabledTransitionPairs, 10 FixpointIterations, 23 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 39 ConcurrentYvCompositions, 9 ChoiceCompositions, 250 TotalNumberOfCompositions, 95407 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 33813, independent: 32473, independent conditional: 0, independent unconditional: 32473, dependent: 485, dependent conditional: 0, dependent unconditional: 485, unknown: 855, unknown conditional: 0, unknown unconditional: 855] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17320, independent: 17057, independent conditional: 0, independent unconditional: 17057, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 123, unknown conditional: 0, unknown unconditional: 123] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17320, independent: 15077, independent conditional: 0, independent unconditional: 15077, dependent: 2243, dependent conditional: 0, dependent unconditional: 2243, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2243, independent: 1980, independent conditional: 0, independent unconditional: 1980, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 123, unknown conditional: 0, unknown unconditional: 123] , SemanticIndependenceRelation.Query Time [ms]: [ total: 330974, independent: 14654, independent conditional: 0, independent unconditional: 14654, dependent: 4688, dependent conditional: 0, dependent unconditional: 4688, unknown: 311633, unknown conditional: 0, unknown unconditional: 311633] ], Cache Queries: [ total: 33813, independent: 15416, independent conditional: 0, independent unconditional: 15416, dependent: 345, dependent conditional: 0, dependent unconditional: 345, unknown: 18052, unknown conditional: 0, unknown unconditional: 18052] , Statistics on independence cache: Total cache size (in pairs): 2195, Positive cache size: 2135, Positive conditional cache size: 0, Positive unconditional cache size: 2135, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60, Unknown cache size: 79, Unknown conditional cache size: 0, Unknown unconditional cache size: 79 - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R --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 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:44:21,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:44:21,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:44:21,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:44:21,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:44:21,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:44:21,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:44:21,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:44:21,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:44:21,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:44:21,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:44:21,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:44:21,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:44:21,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:44:21,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:44:21,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:44:21,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:44:21,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:44:21,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:44:21,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:44:21,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:44:21,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:44:21,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:44:21,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:44:21,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:44:21,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:44:21,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:44:21,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:44:21,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:44:21,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:44:21,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:44:21,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:44:21,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:44:21,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:44:21,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:44:21,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:44:21,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:44:21,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:44:21,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:44:21,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:44:21,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:44:21,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2022-11-25 17:44:21,585 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:44:21,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:44:21,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:44:21,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:44:21,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:44:21,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:44:21,589 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:44:21,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:44:21,589 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:44:21,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:44:21,591 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:44:21,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:44:21,591 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:44:21,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:44:21,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:44:21,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:44:21,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:44:21,592 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:44:21,593 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:44:21,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:44:21,593 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:44:21,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:44:21,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:44:21,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:44:21,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:44:21,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:44:21,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:44:21,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:21,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:44:21,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:44:21,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:44:21,596 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:44:21,596 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:44:21,596 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:44:21,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:44:21,597 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:44:21,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:44:21,597 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:44:21,597 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2022-11-25 17:44:21,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:44:21,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:44:21,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:44:21,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:44:21,980 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:44:21,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-25 17:44:25,187 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:44:25,512 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:44:25,512 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2022-11-25 17:44:25,525 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data/daac8eb44/6e7d53fcf71c4038b06cd4386488f4a6/FLAGf7f2746c1 [2022-11-25 17:44:25,545 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/data/daac8eb44/6e7d53fcf71c4038b06cd4386488f4a6 [2022-11-25 17:44:25,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:44:25,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:44:25,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:25,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:44:25,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:44:25,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:25" (1/1) ... [2022-11-25 17:44:25,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d03615d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:25, skipping insertion in model container [2022-11-25 17:44:25,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:25" (1/1) ... [2022-11-25 17:44:25,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:44:25,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:44:26,038 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-25 17:44:26,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:26,072 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:44:26,163 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i[30582,30595] [2022-11-25 17:44:26,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:26,202 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:44:26,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26 WrapperNode [2022-11-25 17:44:26,203 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:26,204 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:26,204 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:44:26,204 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:44:26,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,294 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2022-11-25 17:44:26,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:26,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:44:26,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:44:26,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:44:26,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,369 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:44:26,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:44:26,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:44:26,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:44:26,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (1/1) ... [2022-11-25 17:44:26,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:26,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:26,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:44:26,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:44:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 17:44:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 17:44:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 17:44:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:44:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:44:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:44:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 17:44:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:44:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-25 17:44:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:44:26,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:44:26,498 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:44:26,747 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:44:26,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:44:27,146 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:44:27,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:44:27,404 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 17:44:27,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:27 BoogieIcfgContainer [2022-11-25 17:44:27,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:44:27,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:44:27,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:44:27,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:44:27,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:44:25" (1/3) ... [2022-11-25 17:44:27,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5550bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:27, skipping insertion in model container [2022-11-25 17:44:27,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:26" (2/3) ... [2022-11-25 17:44:27,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5550bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:44:27, skipping insertion in model container [2022-11-25 17:44:27,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:44:27" (3/3) ... [2022-11-25 17:44:27,421 INFO L112 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2022-11-25 17:44:27,432 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:44:27,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:44:27,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:44:27,445 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:44:27,587 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:44:27,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-11-25 17:44:27,742 INFO L130 PetriNetUnfolder]: 12/140 cut-off events. [2022-11-25 17:44:27,742 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:44:27,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 102. Up to 4 conditions per place. [2022-11-25 17:44:27,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 129 transitions, 263 flow [2022-11-25 17:44:27,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 129 transitions, 263 flow [2022-11-25 17:44:27,762 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:44:27,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-25 17:44:27,786 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 129 transitions, 263 flow [2022-11-25 17:44:27,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 121 places, 129 transitions, 263 flow [2022-11-25 17:44:27,816 INFO L130 PetriNetUnfolder]: 12/140 cut-off events. [2022-11-25 17:44:27,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:44:27,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 140 events. 12/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 200 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 102. Up to 4 conditions per place. [2022-11-25 17:44:27,820 INFO L119 LiptonReduction]: Number of co-enabled transitions 2492 [2022-11-25 17:44:40,881 WARN L233 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 101 DAG size of output: 95 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:44:46,072 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 95 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:45:01,511 INFO L134 LiptonReduction]: Checked pairs total: 2371 [2022-11-25 17:45:01,512 INFO L136 LiptonReduction]: Total number of compositions: 142 [2022-11-25 17:45:01,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:45:01,534 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c8c42aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:45:01,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-25 17:45:01,539 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-11-25 17:45:01,540 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:45:01,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:45:01,541 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:45:01,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:45:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:01,547 INFO L85 PathProgramCache]: Analyzing trace with hash 630036496, now seen corresponding path program 1 times [2022-11-25 17:45:01,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:45:01,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552075795] [2022-11-25 17:45:01,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:01,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:45:01,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:45:01,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:45:01,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:45:01,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:01,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:45:01,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:01,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:01,750 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:45:01,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552075795] [2022-11-25 17:45:01,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [552075795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:01,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:01,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:45:01,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364478314] [2022-11-25 17:45:01,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:01,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:45:01,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:45:01,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:45:01,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:45:01,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 271 [2022-11-25 17:45:01,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 26 transitions, 57 flow. Second operand has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:45:01,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:45:01,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 271 [2022-11-25 17:45:01,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:45:01,938 INFO L130 PetriNetUnfolder]: 25/56 cut-off events. [2022-11-25 17:45:01,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:45:01,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 56 events. 25/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 113 event pairs, 16 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 102. Up to 55 conditions per place. [2022-11-25 17:45:01,940 INFO L137 encePairwiseOnDemand]: 261/271 looper letters, 15 selfloop transitions, 0 changer transitions 0/16 dead transitions. [2022-11-25 17:45:01,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 16 transitions, 67 flow [2022-11-25 17:45:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:45:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:45:01,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 255 transitions. [2022-11-25 17:45:01,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.470479704797048 [2022-11-25 17:45:01,958 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 255 transitions. [2022-11-25 17:45:01,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 255 transitions. [2022-11-25 17:45:01,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:45:01,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 255 transitions. [2022-11-25 17:45:01,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 127.5) internal successors, (255), 2 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:45:01,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:45:01,974 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:45:01,976 INFO L175 Difference]: Start difference. First operand has 24 places, 26 transitions, 57 flow. Second operand 2 states and 255 transitions. [2022-11-25 17:45:01,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 16 transitions, 67 flow [2022-11-25 17:45:01,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 16 transitions, 67 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:45:01,981 INFO L231 Difference]: Finished difference. Result has 17 places, 16 transitions, 37 flow [2022-11-25 17:45:01,983 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=37, PETRI_PLACES=17, PETRI_TRANSITIONS=16} [2022-11-25 17:45:01,986 INFO L288 CegarLoopForPetriNet]: 24 programPoint places, -7 predicate places. [2022-11-25 17:45:01,987 INFO L495 AbstractCegarLoop]: Abstraction has has 17 places, 16 transitions, 37 flow [2022-11-25 17:45:01,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:45:01,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:45:01,988 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-11-25 17:45:02,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:02,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:45:02,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-25 17:45:02,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1943831713, now seen corresponding path program 1 times [2022-11-25 17:45:02,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:45:02,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968182065] [2022-11-25 17:45:02,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:02,204 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:45:02,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:45:02,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:45:02,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:45:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:45:02,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:45:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:45:02,384 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:45:02,399 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:45:02,401 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-25 17:45:02,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-25 17:45:02,403 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-25 17:45:02,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-25 17:45:02,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-25 17:45:02,404 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-25 17:45:02,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-25 17:45:02,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-25 17:45:02,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-25 17:45:02,405 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-25 17:45:02,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-25 17:45:02,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-11-25 17:45:02,406 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-25 17:45:02,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-25 17:45:02,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-25 17:45:02,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-25 17:45:02,408 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-25 17:45:02,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:02,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43cb4646-604a-4133-903e-15cafa58cbe7/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:45:02,609 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:45:02,611 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-25 17:45:02,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-25 17:45:02,714 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:45:02,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 219 transitions, 450 flow [2022-11-25 17:45:02,819 INFO L130 PetriNetUnfolder]: 23/243 cut-off events. [2022-11-25 17:45:02,819 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:45:02,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 243 events. 23/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 655 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-11-25 17:45:02,827 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 219 transitions, 450 flow [2022-11-25 17:45:02,831 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 219 transitions, 450 flow [2022-11-25 17:45:02,831 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:45:02,831 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 219 transitions, 450 flow [2022-11-25 17:45:02,832 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 219 transitions, 450 flow [2022-11-25 17:45:02,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 219 transitions, 450 flow [2022-11-25 17:45:02,913 INFO L130 PetriNetUnfolder]: 23/243 cut-off events. [2022-11-25 17:45:02,914 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:45:02,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 243 events. 23/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 655 event pairs, 0 based on Foata normal form. 0/201 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-11-25 17:45:02,927 INFO L119 LiptonReduction]: Number of co-enabled transitions 21004 [2022-11-25 17:45:28,963 WARN L233 SmtUtils]: Spent 16.48s on a formula simplification. DAG size of input: 109 DAG size of output: 100 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:45:34,168 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 100 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-25 17:45:51,384 WARN L233 SmtUtils]: Spent 7.23s on a formula simplification. DAG size of input: 109 DAG size of output: 97 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)