./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:47:11,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:47:11,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:47:11,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:47:11,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:47:11,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:47:11,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:47:11,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:47:11,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:47:11,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:47:11,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:47:11,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:47:11,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:47:11,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:47:11,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:47:11,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:47:11,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:47:11,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:47:11,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:47:11,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:47:11,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:47:11,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:47:11,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:47:11,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:47:11,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:47:11,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:47:11,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:47:11,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:47:11,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:47:11,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:47:11,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:47:11,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:47:11,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:47:11,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:47:11,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:47:11,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:47:11,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:47:11,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:47:11,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:47:11,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:47:11,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:47:11,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:47:11,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:47:11,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:47:11,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:47:11,102 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:47:11,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:47:11,103 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:47:11,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:47:11,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:47:11,104 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:47:11,104 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:47:11,105 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:47:11,105 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:47:11,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:47:11,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:47:11,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:47:11,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:47:11,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:47:11,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:47:11,107 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:47:11,107 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:47:11,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:47:11,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:47:11,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:47:11,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:47:11,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:47:11,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:47:11,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:47:11,109 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:47:11,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:47:11,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:47:11,110 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:47:11,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:47:11,110 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:47:11,111 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:47:11,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:47:11,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2022-11-20 12:47:11,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:47:11,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:47:11,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:47:11,472 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:47:11,473 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:47:11,474 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread/stateful01-1.i [2022-11-20 12:47:14,961 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:47:15,288 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:47:15,288 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/sv-benchmarks/c/pthread/stateful01-1.i [2022-11-20 12:47:15,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/data/297df666f/b454f1848fa746429fc20964cc66ca52/FLAG50bb69964 [2022-11-20 12:47:15,321 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/data/297df666f/b454f1848fa746429fc20964cc66ca52 [2022-11-20 12:47:15,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:47:15,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:47:15,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:47:15,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:47:15,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:47:15,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:47:15" (1/1) ... [2022-11-20 12:47:15,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@291b454f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:15, skipping insertion in model container [2022-11-20 12:47:15,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:47:15" (1/1) ... [2022-11-20 12:47:15,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:47:15,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:47:15,870 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_92d55552-dacf-41ff-9447-7857234f6fab/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2022-11-20 12:47:15,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:47:15,893 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:47:15,964 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_92d55552-dacf-41ff-9447-7857234f6fab/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2022-11-20 12:47:15,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:47:16,024 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:47:16,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16 WrapperNode [2022-11-20 12:47:16,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:47:16,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:47:16,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:47:16,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:47:16,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,113 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2022-11-20 12:47:16,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:47:16,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:47:16,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:47:16,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:47:16,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,143 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:47:16,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:47:16,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:47:16,150 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:47:16,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (1/1) ... [2022-11-20 12:47:16,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:47:16,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:47:16,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:47:16,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:47:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:47:16,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:47:16,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:47:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:47:16,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:47:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:47:16,266 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:47:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:47:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:47:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:47:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:47:16,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:47:16,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:47:16,270 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:47:16,432 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:47:16,435 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:47:16,880 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:47:16,888 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:47:16,889 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:47:16,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:47:16 BoogieIcfgContainer [2022-11-20 12:47:16,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:47:16,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:47:16,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:47:16,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:47:16,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:47:15" (1/3) ... [2022-11-20 12:47:16,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3117429d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:47:16, skipping insertion in model container [2022-11-20 12:47:16,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:47:16" (2/3) ... [2022-11-20 12:47:16,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3117429d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:47:16, skipping insertion in model container [2022-11-20 12:47:16,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:47:16" (3/3) ... [2022-11-20 12:47:16,900 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-11-20 12:47:16,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:47:16,919 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:47:16,919 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-20 12:47:16,919 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:47:17,004 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:47:17,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 158 transitions, 332 flow [2022-11-20 12:47:17,109 INFO L130 PetriNetUnfolder]: 2/156 cut-off events. [2022-11-20 12:47:17,109 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:47:17,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 2/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-20 12:47:17,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 158 transitions, 332 flow [2022-11-20 12:47:17,119 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 139 transitions, 290 flow [2022-11-20 12:47:17,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:47:17,146 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;@7e8a0e75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:47:17,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-20 12:47:17,156 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-20 12:47:17,157 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:47:17,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:17,157 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:17,158 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:17,163 INFO L85 PathProgramCache]: Analyzing trace with hash -159785531, now seen corresponding path program 1 times [2022-11-20 12:47:17,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:17,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605375996] [2022-11-20 12:47:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:17,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:17,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:17,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605375996] [2022-11-20 12:47:17,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605375996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:17,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:17,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:17,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696268499] [2022-11-20 12:47:17,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:17,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:17,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:17,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:17,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:17,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 158 [2022-11-20 12:47:17,480 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:17,480 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:17,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 158 [2022-11-20 12:47:17,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:17,638 INFO L130 PetriNetUnfolder]: 48/412 cut-off events. [2022-11-20 12:47:17,639 INFO L131 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2022-11-20 12:47:17,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 412 events. 48/412 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1738 event pairs, 48 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 420. Up to 119 conditions per place. [2022-11-20 12:47:17,646 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 22 selfloop transitions, 2 changer transitions 0/138 dead transitions. [2022-11-20 12:47:17,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 138 transitions, 336 flow [2022-11-20 12:47:17,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:17,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 418 transitions. [2022-11-20 12:47:17,664 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8818565400843882 [2022-11-20 12:47:17,665 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 418 transitions. [2022-11-20 12:47:17,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 418 transitions. [2022-11-20 12:47:17,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:17,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 418 transitions. [2022-11-20 12:47:17,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:17,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:17,684 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:17,686 INFO L175 Difference]: Start difference. First operand has 146 places, 139 transitions, 290 flow. Second operand 3 states and 418 transitions. [2022-11-20 12:47:17,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 138 transitions, 336 flow [2022-11-20 12:47:17,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 138 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:47:17,696 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 284 flow [2022-11-20 12:47:17,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2022-11-20 12:47:17,704 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2022-11-20 12:47:17,705 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 284 flow [2022-11-20 12:47:17,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:17,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:17,707 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:17,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:47:17,708 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:17,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:17,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1373294786, now seen corresponding path program 1 times [2022-11-20 12:47:17,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:17,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121829344] [2022-11-20 12:47:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:17,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:17,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:17,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:17,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121829344] [2022-11-20 12:47:17,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121829344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:17,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:17,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:17,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783430269] [2022-11-20 12:47:17,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:17,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:17,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:17,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:17,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:17,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 158 [2022-11-20 12:47:17,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:17,911 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:17,911 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 158 [2022-11-20 12:47:17,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:18,052 INFO L130 PetriNetUnfolder]: 48/356 cut-off events. [2022-11-20 12:47:18,052 INFO L131 PetriNetUnfolder]: For 8/10 co-relation queries the response was YES. [2022-11-20 12:47:18,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 356 events. 48/356 cut-off events. For 8/10 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1361 event pairs, 48 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 445. Up to 118 conditions per place. [2022-11-20 12:47:18,059 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 21 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2022-11-20 12:47:18,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 137 transitions, 328 flow [2022-11-20 12:47:18,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:18,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:18,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 417 transitions. [2022-11-20 12:47:18,065 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.879746835443038 [2022-11-20 12:47:18,065 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 417 transitions. [2022-11-20 12:47:18,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 417 transitions. [2022-11-20 12:47:18,066 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:18,066 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 417 transitions. [2022-11-20 12:47:18,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,072 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 284 flow. Second operand 3 states and 417 transitions. [2022-11-20 12:47:18,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 137 transitions, 328 flow [2022-11-20 12:47:18,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 137 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:18,080 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 282 flow [2022-11-20 12:47:18,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2022-11-20 12:47:18,082 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -4 predicate places. [2022-11-20 12:47:18,082 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 282 flow [2022-11-20 12:47:18,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,083 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:18,084 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:18,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:47:18,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:18,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:18,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1236581254, now seen corresponding path program 1 times [2022-11-20 12:47:18,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:18,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497939042] [2022-11-20 12:47:18,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:18,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:18,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:18,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497939042] [2022-11-20 12:47:18,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497939042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:18,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:18,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:18,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561727193] [2022-11-20 12:47:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:18,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:18,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:18,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:18,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:18,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-20 12:47:18,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:18,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-20 12:47:18,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:18,388 INFO L130 PetriNetUnfolder]: 50/456 cut-off events. [2022-11-20 12:47:18,388 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-20 12:47:18,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 456 events. 50/456 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2105 event pairs, 15 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 543. Up to 76 conditions per place. [2022-11-20 12:47:18,391 INFO L137 encePairwiseOnDemand]: 148/158 looper letters, 25 selfloop transitions, 7 changer transitions 0/148 dead transitions. [2022-11-20 12:47:18,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 148 transitions, 370 flow [2022-11-20 12:47:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-11-20 12:47:18,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9219409282700421 [2022-11-20 12:47:18,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-11-20 12:47:18,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-11-20 12:47:18,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:18,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-11-20 12:47:18,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,401 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,401 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 282 flow. Second operand 3 states and 437 transitions. [2022-11-20 12:47:18,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 148 transitions, 370 flow [2022-11-20 12:47:18,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 148 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:18,407 INFO L231 Difference]: Finished difference. Result has 143 places, 142 transitions, 332 flow [2022-11-20 12:47:18,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=143, PETRI_TRANSITIONS=142} [2022-11-20 12:47:18,410 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -3 predicate places. [2022-11-20 12:47:18,411 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 142 transitions, 332 flow [2022-11-20 12:47:18,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,412 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:18,412 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:18,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:47:18,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:18,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1172464604, now seen corresponding path program 1 times [2022-11-20 12:47:18,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:18,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127600441] [2022-11-20 12:47:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:18,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:18,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:18,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127600441] [2022-11-20 12:47:18,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127600441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:18,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:18,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:18,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138174572] [2022-11-20 12:47:18,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:18,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:18,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:18,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:18,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:18,542 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-20 12:47:18,559 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,559 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:18,559 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-20 12:47:18,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:18,701 INFO L130 PetriNetUnfolder]: 69/589 cut-off events. [2022-11-20 12:47:18,702 INFO L131 PetriNetUnfolder]: For 113/116 co-relation queries the response was YES. [2022-11-20 12:47:18,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 589 events. 69/589 cut-off events. For 113/116 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 3240 event pairs, 32 based on Foata normal form. 2/520 useless extension candidates. Maximal degree in co-relation 636. Up to 133 conditions per place. [2022-11-20 12:47:18,708 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 32 selfloop transitions, 7 changer transitions 0/153 dead transitions. [2022-11-20 12:47:18,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 153 transitions, 451 flow [2022-11-20 12:47:18,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:18,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:18,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2022-11-20 12:47:18,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9029535864978903 [2022-11-20 12:47:18,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2022-11-20 12:47:18,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2022-11-20 12:47:18,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:18,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2022-11-20 12:47:18,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,719 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,719 INFO L175 Difference]: Start difference. First operand has 143 places, 142 transitions, 332 flow. Second operand 3 states and 428 transitions. [2022-11-20 12:47:18,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 153 transitions, 451 flow [2022-11-20 12:47:18,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 153 transitions, 431 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:18,724 INFO L231 Difference]: Finished difference. Result has 145 places, 147 transitions, 374 flow [2022-11-20 12:47:18,725 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=145, PETRI_TRANSITIONS=147} [2022-11-20 12:47:18,726 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -1 predicate places. [2022-11-20 12:47:18,732 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 147 transitions, 374 flow [2022-11-20 12:47:18,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:18,733 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:18,733 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:18,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:47:18,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1587444120, now seen corresponding path program 1 times [2022-11-20 12:47:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:18,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718871259] [2022-11-20 12:47:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:19,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:19,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718871259] [2022-11-20 12:47:19,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718871259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:19,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:19,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:47:19,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538612437] [2022-11-20 12:47:19,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:19,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:47:19,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:19,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:47:19,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:47:19,390 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-20 12:47:19,392 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 147 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,392 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:19,392 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-20 12:47:19,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:19,531 INFO L130 PetriNetUnfolder]: 19/354 cut-off events. [2022-11-20 12:47:19,531 INFO L131 PetriNetUnfolder]: For 51/78 co-relation queries the response was YES. [2022-11-20 12:47:19,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 354 events. 19/354 cut-off events. For 51/78 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1494 event pairs, 4 based on Foata normal form. 16/337 useless extension candidates. Maximal degree in co-relation 352. Up to 31 conditions per place. [2022-11-20 12:47:19,535 INFO L137 encePairwiseOnDemand]: 153/158 looper letters, 15 selfloop transitions, 4 changer transitions 0/146 dead transitions. [2022-11-20 12:47:19,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 146 transitions, 410 flow [2022-11-20 12:47:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:47:19,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:47:19,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 824 transitions. [2022-11-20 12:47:19,538 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.869198312236287 [2022-11-20 12:47:19,538 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 824 transitions. [2022-11-20 12:47:19,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 824 transitions. [2022-11-20 12:47:19,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:19,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 824 transitions. [2022-11-20 12:47:19,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.33333333333334) internal successors, (824), 6 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,546 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,546 INFO L175 Difference]: Start difference. First operand has 145 places, 147 transitions, 374 flow. Second operand 6 states and 824 transitions. [2022-11-20 12:47:19,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 146 transitions, 410 flow [2022-11-20 12:47:19,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 146 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:19,553 INFO L231 Difference]: Finished difference. Result has 147 places, 146 transitions, 366 flow [2022-11-20 12:47:19,554 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=366, PETRI_PLACES=147, PETRI_TRANSITIONS=146} [2022-11-20 12:47:19,557 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-11-20 12:47:19,557 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 146 transitions, 366 flow [2022-11-20 12:47:19,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.83333333333334) internal successors, (815), 6 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:19,559 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:19,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:47:19,559 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:19,561 INFO L85 PathProgramCache]: Analyzing trace with hash 66900791, now seen corresponding path program 1 times [2022-11-20 12:47:19,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:19,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172101563] [2022-11-20 12:47:19,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:19,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:19,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:19,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:19,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172101563] [2022-11-20 12:47:19,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172101563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:19,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:19,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:19,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748742476] [2022-11-20 12:47:19,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:19,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:19,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:19,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:19,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:19,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-20 12:47:19,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 146 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:19,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-20 12:47:19,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:19,820 INFO L130 PetriNetUnfolder]: 76/558 cut-off events. [2022-11-20 12:47:19,820 INFO L131 PetriNetUnfolder]: For 106/108 co-relation queries the response was YES. [2022-11-20 12:47:19,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 558 events. 76/558 cut-off events. For 106/108 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2930 event pairs, 28 based on Foata normal form. 0/496 useless extension candidates. Maximal degree in co-relation 777. Up to 137 conditions per place. [2022-11-20 12:47:19,827 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 35 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2022-11-20 12:47:19,828 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 158 transitions, 501 flow [2022-11-20 12:47:19,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:19,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2022-11-20 12:47:19,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9029535864978903 [2022-11-20 12:47:19,831 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2022-11-20 12:47:19,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2022-11-20 12:47:19,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:19,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2022-11-20 12:47:19,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,839 INFO L175 Difference]: Start difference. First operand has 147 places, 146 transitions, 366 flow. Second operand 3 states and 428 transitions. [2022-11-20 12:47:19,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 158 transitions, 501 flow [2022-11-20 12:47:19,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 158 transitions, 494 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:47:19,846 INFO L231 Difference]: Finished difference. Result has 147 places, 151 transitions, 427 flow [2022-11-20 12:47:19,847 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=147, PETRI_TRANSITIONS=151} [2022-11-20 12:47:19,849 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2022-11-20 12:47:19,850 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 151 transitions, 427 flow [2022-11-20 12:47:19,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:19,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:19,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:47:19,851 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:19,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:19,852 INFO L85 PathProgramCache]: Analyzing trace with hash -537529267, now seen corresponding path program 1 times [2022-11-20 12:47:19,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:19,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949820979] [2022-11-20 12:47:19,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:19,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:19,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:19,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949820979] [2022-11-20 12:47:19,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949820979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:19,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:19,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:19,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663364170] [2022-11-20 12:47:19,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:19,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:19,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:19,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:19,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:19,952 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-20 12:47:19,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 151 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:19,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:19,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-20 12:47:19,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:20,116 INFO L130 PetriNetUnfolder]: 80/645 cut-off events. [2022-11-20 12:47:20,117 INFO L131 PetriNetUnfolder]: For 160/166 co-relation queries the response was YES. [2022-11-20 12:47:20,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 645 events. 80/645 cut-off events. For 160/166 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3613 event pairs, 27 based on Foata normal form. 1/582 useless extension candidates. Maximal degree in co-relation 882. Up to 108 conditions per place. [2022-11-20 12:47:20,123 INFO L137 encePairwiseOnDemand]: 148/158 looper letters, 23 selfloop transitions, 6 changer transitions 7/162 dead transitions. [2022-11-20 12:47:20,123 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 162 transitions, 513 flow [2022-11-20 12:47:20,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:20,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:20,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2022-11-20 12:47:20,127 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.919831223628692 [2022-11-20 12:47:20,127 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2022-11-20 12:47:20,127 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2022-11-20 12:47:20,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:20,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2022-11-20 12:47:20,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,132 INFO L175 Difference]: Start difference. First operand has 147 places, 151 transitions, 427 flow. Second operand 3 states and 436 transitions. [2022-11-20 12:47:20,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 162 transitions, 513 flow [2022-11-20 12:47:20,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 162 transitions, 495 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:20,139 INFO L231 Difference]: Finished difference. Result has 148 places, 149 transitions, 442 flow [2022-11-20 12:47:20,140 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=148, PETRI_TRANSITIONS=149} [2022-11-20 12:47:20,141 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2022-11-20 12:47:20,142 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 149 transitions, 442 flow [2022-11-20 12:47:20,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,142 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:20,143 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:20,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:47:20,143 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:20,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:20,144 INFO L85 PathProgramCache]: Analyzing trace with hash 421597585, now seen corresponding path program 1 times [2022-11-20 12:47:20,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:20,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944899288] [2022-11-20 12:47:20,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:20,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:20,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:20,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:20,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944899288] [2022-11-20 12:47:20,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944899288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:20,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:20,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:47:20,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135235466] [2022-11-20 12:47:20,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:20,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:20,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:20,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:20,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:20,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 158 [2022-11-20 12:47:20,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 149 transitions, 442 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,299 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:20,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 158 [2022-11-20 12:47:20,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:20,384 INFO L130 PetriNetUnfolder]: 12/285 cut-off events. [2022-11-20 12:47:20,385 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-11-20 12:47:20,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 285 events. 12/285 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 836 event pairs, 8 based on Foata normal form. 8/283 useless extension candidates. Maximal degree in co-relation 319. Up to 32 conditions per place. [2022-11-20 12:47:20,387 INFO L137 encePairwiseOnDemand]: 150/158 looper letters, 13 selfloop transitions, 8 changer transitions 0/123 dead transitions. [2022-11-20 12:47:20,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 123 transitions, 346 flow [2022-11-20 12:47:20,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:20,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2022-11-20 12:47:20,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9135021097046413 [2022-11-20 12:47:20,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2022-11-20 12:47:20,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2022-11-20 12:47:20,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:20,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2022-11-20 12:47:20,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 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) [2022-11-20 12:47:20,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,393 INFO L175 Difference]: Start difference. First operand has 148 places, 149 transitions, 442 flow. Second operand 3 states and 433 transitions. [2022-11-20 12:47:20,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 123 transitions, 346 flow [2022-11-20 12:47:20,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 123 transitions, 294 flow, removed 10 selfloop flow, removed 10 redundant places. [2022-11-20 12:47:20,397 INFO L231 Difference]: Finished difference. Result has 127 places, 121 transitions, 262 flow [2022-11-20 12:47:20,397 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=127, PETRI_TRANSITIONS=121} [2022-11-20 12:47:20,398 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -19 predicate places. [2022-11-20 12:47:20,398 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 121 transitions, 262 flow [2022-11-20 12:47:20,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:20,399 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:20,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:47:20,399 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:20,400 INFO L85 PathProgramCache]: Analyzing trace with hash -935353269, now seen corresponding path program 1 times [2022-11-20 12:47:20,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:20,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173336135] [2022-11-20 12:47:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:20,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:20,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:20,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:20,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173336135] [2022-11-20 12:47:20,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173336135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:20,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:20,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:20,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034593526] [2022-11-20 12:47:20,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:20,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:20,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:20,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:20,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-20 12:47:20,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 121 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:20,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-20 12:47:20,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:20,508 INFO L130 PetriNetUnfolder]: 15/302 cut-off events. [2022-11-20 12:47:20,509 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 12:47:20,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 302 events. 15/302 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 921 event pairs, 13 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 246. Up to 52 conditions per place. [2022-11-20 12:47:20,510 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 15 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2022-11-20 12:47:20,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 121 transitions, 297 flow [2022-11-20 12:47:20,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:20,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:20,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2022-11-20 12:47:20,513 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8734177215189873 [2022-11-20 12:47:20,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 414 transitions. [2022-11-20 12:47:20,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 414 transitions. [2022-11-20 12:47:20,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:20,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 414 transitions. [2022-11-20 12:47:20,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,516 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,517 INFO L175 Difference]: Start difference. First operand has 127 places, 121 transitions, 262 flow. Second operand 3 states and 414 transitions. [2022-11-20 12:47:20,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 121 transitions, 297 flow [2022-11-20 12:47:20,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 121 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:47:20,520 INFO L231 Difference]: Finished difference. Result has 127 places, 120 transitions, 256 flow [2022-11-20 12:47:20,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=127, PETRI_TRANSITIONS=120} [2022-11-20 12:47:20,521 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -19 predicate places. [2022-11-20 12:47:20,521 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 120 transitions, 256 flow [2022-11-20 12:47:20,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:20,522 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:20,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:47:20,522 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:20,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 309377310, now seen corresponding path program 1 times [2022-11-20 12:47:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:20,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276448765] [2022-11-20 12:47:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:20,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:20,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276448765] [2022-11-20 12:47:20,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276448765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:20,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:20,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:47:20,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435564547] [2022-11-20 12:47:20,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:20,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:47:20,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:20,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:47:20,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:47:20,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-11-20 12:47:20,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 120 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:20,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-11-20 12:47:20,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:20,651 INFO L130 PetriNetUnfolder]: 14/291 cut-off events. [2022-11-20 12:47:20,652 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-20 12:47:20,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 291 events. 14/291 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 861 event pairs, 12 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 231. Up to 47 conditions per place. [2022-11-20 12:47:20,653 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 14 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2022-11-20 12:47:20,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 120 transitions, 289 flow [2022-11-20 12:47:20,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:47:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:47:20,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-11-20 12:47:20,656 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8713080168776371 [2022-11-20 12:47:20,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-11-20 12:47:20,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-11-20 12:47:20,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:20,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-11-20 12:47:20,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,660 INFO L175 Difference]: Start difference. First operand has 127 places, 120 transitions, 256 flow. Second operand 3 states and 413 transitions. [2022-11-20 12:47:20,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 120 transitions, 289 flow [2022-11-20 12:47:20,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 120 transitions, 285 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:20,663 INFO L231 Difference]: Finished difference. Result has 126 places, 119 transitions, 254 flow [2022-11-20 12:47:20,663 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=126, PETRI_TRANSITIONS=119} [2022-11-20 12:47:20,664 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -20 predicate places. [2022-11-20 12:47:20,664 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 119 transitions, 254 flow [2022-11-20 12:47:20,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:20,665 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:47:20,665 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:20,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:47:20,665 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-20 12:47:20,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:47:20,666 INFO L85 PathProgramCache]: Analyzing trace with hash -225623302, now seen corresponding path program 1 times [2022-11-20 12:47:20,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:47:20,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407616748] [2022-11-20 12:47:20,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:47:20,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:47:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:47:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:47:21,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:47:21,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407616748] [2022-11-20 12:47:21,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407616748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:47:21,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:47:21,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:47:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117790000] [2022-11-20 12:47:21,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:47:21,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:47:21,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:47:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:47:21,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:47:21,250 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 158 [2022-11-20 12:47:21,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 119 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:21,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:47:21,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 158 [2022-11-20 12:47:21,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:47:21,322 INFO L130 PetriNetUnfolder]: 4/220 cut-off events. [2022-11-20 12:47:21,322 INFO L131 PetriNetUnfolder]: For 2/14 co-relation queries the response was YES. [2022-11-20 12:47:21,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 220 events. 4/220 cut-off events. For 2/14 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 477 event pairs, 4 based on Foata normal form. 0/220 useless extension candidates. Maximal degree in co-relation 212. Up to 15 conditions per place. [2022-11-20 12:47:21,323 INFO L137 encePairwiseOnDemand]: 153/158 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2022-11-20 12:47:21,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 118 transitions, 286 flow [2022-11-20 12:47:21,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:47:21,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:47:21,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 822 transitions. [2022-11-20 12:47:21,326 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8670886075949367 [2022-11-20 12:47:21,327 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 822 transitions. [2022-11-20 12:47:21,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 822 transitions. [2022-11-20 12:47:21,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:47:21,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 822 transitions. [2022-11-20 12:47:21,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 137.0) internal successors, (822), 6 states have internal predecessors, (822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:21,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:21,333 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 158.0) internal successors, (1106), 7 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:21,333 INFO L175 Difference]: Start difference. First operand has 126 places, 119 transitions, 254 flow. Second operand 6 states and 822 transitions. [2022-11-20 12:47:21,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 118 transitions, 286 flow [2022-11-20 12:47:21,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 118 transitions, 282 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:47:21,336 INFO L231 Difference]: Finished difference. Result has 128 places, 0 transitions, 0 flow [2022-11-20 12:47:21,336 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=128, PETRI_TRANSITIONS=0} [2022-11-20 12:47:21,337 INFO L288 CegarLoopForPetriNet]: 146 programPoint places, -18 predicate places. [2022-11-20 12:47:21,337 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 0 transitions, 0 flow [2022-11-20 12:47:21,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.83333333333334) internal successors, (821), 6 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:47:21,340 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-20 12:47:21,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-20 12:47:21,341 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-20 12:47:21,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-20 12:47:21,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-20 12:47:21,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-20 12:47:21,342 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-20 12:47:21,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-20 12:47:21,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-20 12:47:21,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-20 12:47:21,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-20 12:47:21,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-20 12:47:21,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-20 12:47:21,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-20 12:47:21,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2022-11-20 12:47:21,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2022-11-20 12:47:21,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-20 12:47:21,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-20 12:47:21,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-20 12:47:21,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-20 12:47:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-20 12:47:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-20 12:47:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-20 12:47:21,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-20 12:47:21,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:47:21,347 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:47:21,354 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:47:21,354 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:47:21,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:47:21 BasicIcfg [2022-11-20 12:47:21,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:47:21,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:47:21,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:47:21,361 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:47:21,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:47:16" (3/4) ... [2022-11-20 12:47:21,365 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:47:21,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 12:47:21,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 12:47:21,377 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-20 12:47:21,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:47:21,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:47:21,378 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:47:21,418 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:47:21,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:47:21,419 INFO L158 Benchmark]: Toolchain (without parser) took 6093.33ms. Allocated memory was 192.9MB in the beginning and 247.5MB in the end (delta: 54.5MB). Free memory was 146.9MB in the beginning and 181.1MB in the end (delta: -34.3MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,420 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:47:21,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.52ms. Allocated memory is still 192.9MB. Free memory was 146.7MB in the beginning and 126.8MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.87ms. Allocated memory is still 192.9MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,421 INFO L158 Benchmark]: Boogie Preprocessor took 33.69ms. Allocated memory is still 192.9MB. Free memory was 124.7MB in the beginning and 123.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,421 INFO L158 Benchmark]: RCFGBuilder took 742.08ms. Allocated memory is still 192.9MB. Free memory was 123.1MB in the beginning and 158.2MB in the end (delta: -35.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,422 INFO L158 Benchmark]: TraceAbstraction took 4466.43ms. Allocated memory was 192.9MB in the beginning and 247.5MB in the end (delta: 54.5MB). Free memory was 157.2MB in the beginning and 184.3MB in the end (delta: -27.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,423 INFO L158 Benchmark]: Witness Printer took 58.00ms. Allocated memory is still 247.5MB. Free memory was 184.3MB in the beginning and 181.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:47:21,424 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 134.2MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.52ms. Allocated memory is still 192.9MB. Free memory was 146.7MB in the beginning and 126.8MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.87ms. Allocated memory is still 192.9MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.69ms. Allocated memory is still 192.9MB. Free memory was 124.7MB in the beginning and 123.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 742.08ms. Allocated memory is still 192.9MB. Free memory was 123.1MB in the beginning and 158.2MB in the end (delta: -35.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4466.43ms. Allocated memory was 192.9MB in the beginning and 247.5MB in the end (delta: 54.5MB). Free memory was 157.2MB in the beginning and 184.3MB in the end (delta: -27.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Witness Printer took 58.00ms. Allocated memory is still 247.5MB. Free memory was 184.3MB in the beginning and 181.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 40 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 40 mSolverCounterUnsat, 153 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=442occurred in iteration=7, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 667 NumberOfCodeBlocks, 667 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 656 ConstructedInterpolants, 0 QuantifiedInterpolants, 894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:47:21,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d55552-dacf-41ff-9447-7857234f6fab/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE