./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:33:17,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:33:17,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:33:17,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:33:17,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:33:17,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:33:17,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:33:17,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:33:17,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:33:17,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:33:17,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:33:17,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:33:17,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:33:18,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:33:18,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:33:18,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:33:18,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:33:18,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:33:18,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:33:18,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:33:18,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:33:18,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:33:18,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:33:18,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:33:18,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:33:18,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:33:18,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:33:18,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:33:18,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:33:18,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:33:18,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:33:18,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:33:18,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:33:18,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:33:18,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:33:18,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:33:18,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:33:18,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:33:18,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:33:18,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:33:18,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:33:18,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:33:18,061 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:33:18,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:33:18,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:33:18,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:33:18,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:33:18,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:33:18,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:33:18,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:33:18,065 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:33:18,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:33:18,065 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:33:18,065 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:33:18,066 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:33:18,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:33:18,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:33:18,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:33:18,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:33:18,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:33:18,067 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:33:18,067 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:33:18,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:33:18,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:33:18,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:33:18,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:33:18,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:33:18,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:33:18,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:18,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:33:18,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:33:18,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:33:18,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:33:18,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:33:18,070 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:33:18,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:33:18,070 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:33:18,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:33:18,071 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-11-25 18:33:18,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:33:18,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:33:18,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:33:18,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:33:18,437 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:33:18,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-25 18:33:21,611 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:33:21,868 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:33:21,874 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-11-25 18:33:21,901 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/data/2b3b820d3/05a11504579f42c686840ec5f492bc93/FLAG4561a4955 [2022-11-25 18:33:21,918 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/data/2b3b820d3/05a11504579f42c686840ec5f492bc93 [2022-11-25 18:33:21,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:33:21,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:33:21,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:21,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:33:21,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:33:21,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:21" (1/1) ... [2022-11-25 18:33:21,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76361b0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:21, skipping insertion in model container [2022-11-25 18:33:21,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:33:21" (1/1) ... [2022-11-25 18:33:21,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:33:22,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:33:22,189 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_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-25 18:33:22,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:22,368 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:33:22,381 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_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-11-25 18:33:22,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:33:22,459 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:33:22,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22 WrapperNode [2022-11-25 18:33:22,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:33:22,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:22,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:33:22,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:33:22,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,486 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,512 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-11-25 18:33:22,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:33:22,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:33:22,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:33:22,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:33:22,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,542 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:33:22,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:33:22,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:33:22,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:33:22,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (1/1) ... [2022-11-25 18:33:22,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:33:22,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:33:22,583 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:33:22,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:33:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:33:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-25 18:33:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-25 18:33:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:33:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:33:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:33:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:33:22,648 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 18:33:22,648 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 18:33:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:33:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:33:22,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:33:22,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:33:22,651 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:33:22,862 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:33:22,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:33:23,276 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:33:23,299 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:33:23,299 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:33:23,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:23 BoogieIcfgContainer [2022-11-25 18:33:23,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:33:23,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:33:23,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:33:23,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:33:23,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:33:21" (1/3) ... [2022-11-25 18:33:23,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9d0825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:23, skipping insertion in model container [2022-11-25 18:33:23,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:33:22" (2/3) ... [2022-11-25 18:33:23,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9d0825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:33:23, skipping insertion in model container [2022-11-25 18:33:23,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:23" (3/3) ... [2022-11-25 18:33:23,325 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-11-25 18:33:23,334 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:33:23,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:33:23,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-25 18:33:23,374 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:33:23,536 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:33:23,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 211 transitions, 438 flow [2022-11-25 18:33:23,749 INFO L130 PetriNetUnfolder]: 4/209 cut-off events. [2022-11-25 18:33:23,749 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:33:23,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 209 events. 4/209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 252 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-11-25 18:33:23,757 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 211 transitions, 438 flow [2022-11-25 18:33:23,769 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 199 transitions, 407 flow [2022-11-25 18:33:23,774 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:33:23,803 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 199 transitions, 407 flow [2022-11-25 18:33:23,815 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 199 transitions, 407 flow [2022-11-25 18:33:23,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 199 transitions, 407 flow [2022-11-25 18:33:23,905 INFO L130 PetriNetUnfolder]: 4/199 cut-off events. [2022-11-25 18:33:23,905 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 18:33:23,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 199 events. 4/199 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 252 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-11-25 18:33:23,918 INFO L119 LiptonReduction]: Number of co-enabled transitions 13532 [2022-11-25 18:33:31,096 INFO L134 LiptonReduction]: Checked pairs total: 67063 [2022-11-25 18:33:31,096 INFO L136 LiptonReduction]: Total number of compositions: 185 [2022-11-25 18:33:31,129 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:33:31,137 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;@2379c46d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:33:31,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-25 18:33:31,142 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-25 18:33:31,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:33:31,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:31,144 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 18:33:31,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:31,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:31,151 INFO L85 PathProgramCache]: Analyzing trace with hash 703613, now seen corresponding path program 1 times [2022-11-25 18:33:31,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:31,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073849375] [2022-11-25 18:33:31,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:31,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:31,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:31,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073849375] [2022-11-25 18:33:31,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073849375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:31,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:31,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:33:31,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615344141] [2022-11-25 18:33:31,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:31,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:33:31,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:31,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:33:31,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:33:31,593 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 396 [2022-11-25 18:33:31,600 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 163 flow. Second operand has 2 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:31,600 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:31,600 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 396 [2022-11-25 18:33:31,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:33,462 INFO L130 PetriNetUnfolder]: 6432/11525 cut-off events. [2022-11-25 18:33:33,464 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2022-11-25 18:33:33,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21604 conditions, 11525 events. 6432/11525 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 77989 event pairs, 6432 based on Foata normal form. 494/11637 useless extension candidates. Maximal degree in co-relation 21481. Up to 10035 conditions per place. [2022-11-25 18:33:33,597 INFO L137 encePairwiseOnDemand]: 387/396 looper letters, 50 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2022-11-25 18:33:33,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 68 transitions, 245 flow [2022-11-25 18:33:33,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:33:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:33:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 457 transitions. [2022-11-25 18:33:33,626 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.577020202020202 [2022-11-25 18:33:33,627 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 457 transitions. [2022-11-25 18:33:33,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 457 transitions. [2022-11-25 18:33:33,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:33,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 457 transitions. [2022-11-25 18:33:33,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 228.5) internal successors, (457), 2 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:33,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:33,650 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 396.0) internal successors, (1188), 3 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:33,652 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 163 flow. Second operand 2 states and 457 transitions. [2022-11-25 18:33:33,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 68 transitions, 245 flow [2022-11-25 18:33:33,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 240 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 18:33:33,666 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 140 flow [2022-11-25 18:33:33,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=140, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2022-11-25 18:33:33,673 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, -7 predicate places. [2022-11-25 18:33:33,673 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 140 flow [2022-11-25 18:33:33,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 200.5) internal successors, (401), 2 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:33,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:33,675 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:33,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:33:33,677 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:33,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:33,679 INFO L85 PathProgramCache]: Analyzing trace with hash -493836153, now seen corresponding path program 1 times [2022-11-25 18:33:33,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:33,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194391485] [2022-11-25 18:33:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:33,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:33,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:33,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194391485] [2022-11-25 18:33:33,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194391485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:33,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:33,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:33,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611544830] [2022-11-25 18:33:33,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:33,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:33,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:33,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:33,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:33,879 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 396 [2022-11-25 18:33:33,881 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:33,881 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:33,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 396 [2022-11-25 18:33:33,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:35,798 INFO L130 PetriNetUnfolder]: 9156/15587 cut-off events. [2022-11-25 18:33:35,798 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:33:35,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29835 conditions, 15587 events. 9156/15587 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 104262 event pairs, 7482 based on Foata normal form. 0/14847 useless extension candidates. Maximal degree in co-relation 29832. Up to 12292 conditions per place. [2022-11-25 18:33:35,898 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 86 selfloop transitions, 6 changer transitions 0/106 dead transitions. [2022-11-25 18:33:35,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 106 transitions, 402 flow [2022-11-25 18:33:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:35,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:35,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 657 transitions. [2022-11-25 18:33:35,901 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2022-11-25 18:33:35,901 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 657 transitions. [2022-11-25 18:33:35,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 657 transitions. [2022-11-25 18:33:35,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:35,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 657 transitions. [2022-11-25 18:33:35,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:35,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:35,909 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:35,910 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 140 flow. Second operand 3 states and 657 transitions. [2022-11-25 18:33:35,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 106 transitions, 402 flow [2022-11-25 18:33:35,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 106 transitions, 402 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:33:35,914 INFO L231 Difference]: Finished difference. Result has 77 places, 73 transitions, 186 flow [2022-11-25 18:33:35,914 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=77, PETRI_TRANSITIONS=73} [2022-11-25 18:33:35,915 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, -3 predicate places. [2022-11-25 18:33:35,916 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 73 transitions, 186 flow [2022-11-25 18:33:35,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:35,916 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:35,917 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:35,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:33:35,917 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:35,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:35,918 INFO L85 PathProgramCache]: Analyzing trace with hash 878229845, now seen corresponding path program 1 times [2022-11-25 18:33:35,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:35,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274643626] [2022-11-25 18:33:35,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:35,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:35,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:35,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:35,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274643626] [2022-11-25 18:33:35,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274643626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:35,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:35,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:35,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534421623] [2022-11-25 18:33:35,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:35,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:35,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:35,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:35,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:36,001 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 396 [2022-11-25 18:33:36,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 73 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:36,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:36,002 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 396 [2022-11-25 18:33:36,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:38,459 INFO L130 PetriNetUnfolder]: 12488/21081 cut-off events. [2022-11-25 18:33:38,459 INFO L131 PetriNetUnfolder]: For 4224/4445 co-relation queries the response was YES. [2022-11-25 18:33:38,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44835 conditions, 21081 events. 12488/21081 cut-off events. For 4224/4445 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 148681 event pairs, 3391 based on Foata normal form. 0/20235 useless extension candidates. Maximal degree in co-relation 44830. Up to 13031 conditions per place. [2022-11-25 18:33:38,590 INFO L137 encePairwiseOnDemand]: 383/396 looper letters, 97 selfloop transitions, 13 changer transitions 0/122 dead transitions. [2022-11-25 18:33:38,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 122 transitions, 527 flow [2022-11-25 18:33:38,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:38,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-25 18:33:38,593 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5488215488215489 [2022-11-25 18:33:38,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-25 18:33:38,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-25 18:33:38,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:38,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-25 18:33:38,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,601 INFO L175 Difference]: Start difference. First operand has 77 places, 73 transitions, 186 flow. Second operand 3 states and 652 transitions. [2022-11-25 18:33:38,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 122 transitions, 527 flow [2022-11-25 18:33:38,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 122 transitions, 509 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:33:38,645 INFO L231 Difference]: Finished difference. Result has 79 places, 83 transitions, 282 flow [2022-11-25 18:33:38,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=79, PETRI_TRANSITIONS=83} [2022-11-25 18:33:38,646 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, -1 predicate places. [2022-11-25 18:33:38,647 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 83 transitions, 282 flow [2022-11-25 18:33:38,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:38,648 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:38,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:33:38,648 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:38,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash 390607852, now seen corresponding path program 1 times [2022-11-25 18:33:38,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:38,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296925411] [2022-11-25 18:33:38,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:38,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:38,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:38,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296925411] [2022-11-25 18:33:38,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296925411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:38,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:38,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:38,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111882639] [2022-11-25 18:33:38,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:38,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:38,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:38,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:38,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:38,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 396 [2022-11-25 18:33:38,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 83 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:38,729 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:38,729 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 396 [2022-11-25 18:33:38,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:41,583 INFO L130 PetriNetUnfolder]: 13628/23166 cut-off events. [2022-11-25 18:33:41,588 INFO L131 PetriNetUnfolder]: For 9327/9938 co-relation queries the response was YES. [2022-11-25 18:33:41,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52471 conditions, 23166 events. 13628/23166 cut-off events. For 9327/9938 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 164129 event pairs, 10701 based on Foata normal form. 29/22125 useless extension candidates. Maximal degree in co-relation 52465. Up to 19759 conditions per place. [2022-11-25 18:33:41,723 INFO L137 encePairwiseOnDemand]: 392/396 looper letters, 102 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2022-11-25 18:33:41,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 127 transitions, 639 flow [2022-11-25 18:33:41,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:41,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2022-11-25 18:33:41,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2022-11-25 18:33:41,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 660 transitions. [2022-11-25 18:33:41,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 660 transitions. [2022-11-25 18:33:41,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:41,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 660 transitions. [2022-11-25 18:33:41,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:41,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:41,742 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:41,743 INFO L175 Difference]: Start difference. First operand has 79 places, 83 transitions, 282 flow. Second operand 3 states and 660 transitions. [2022-11-25 18:33:41,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 127 transitions, 639 flow [2022-11-25 18:33:41,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 127 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:33:41,772 INFO L231 Difference]: Finished difference. Result has 80 places, 85 transitions, 275 flow [2022-11-25 18:33:41,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=80, PETRI_TRANSITIONS=85} [2022-11-25 18:33:41,774 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2022-11-25 18:33:41,775 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 85 transitions, 275 flow [2022-11-25 18:33:41,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:41,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:41,777 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:41,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:33:41,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:41,778 INFO L85 PathProgramCache]: Analyzing trace with hash -928901464, now seen corresponding path program 1 times [2022-11-25 18:33:41,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:41,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494214309] [2022-11-25 18:33:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:41,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:42,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:42,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:42,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494214309] [2022-11-25 18:33:42,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494214309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:42,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:42,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:33:42,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868023566] [2022-11-25 18:33:42,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:42,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 18:33:42,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 18:33:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 18:33:42,220 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 396 [2022-11-25 18:33:42,221 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 85 transitions, 275 flow. Second operand has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:42,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:42,222 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 396 [2022-11-25 18:33:42,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:43,314 INFO L130 PetriNetUnfolder]: 5916/10661 cut-off events. [2022-11-25 18:33:43,314 INFO L131 PetriNetUnfolder]: For 3111/3534 co-relation queries the response was YES. [2022-11-25 18:33:43,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24389 conditions, 10661 events. 5916/10661 cut-off events. For 3111/3534 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 73250 event pairs, 1943 based on Foata normal form. 332/10386 useless extension candidates. Maximal degree in co-relation 24382. Up to 5949 conditions per place. [2022-11-25 18:33:43,381 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 105 selfloop transitions, 7 changer transitions 0/137 dead transitions. [2022-11-25 18:33:43,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 137 transitions, 647 flow [2022-11-25 18:33:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:43,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:33:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 862 transitions. [2022-11-25 18:33:43,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5441919191919192 [2022-11-25 18:33:43,386 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 862 transitions. [2022-11-25 18:33:43,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 862 transitions. [2022-11-25 18:33:43,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:43,387 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 862 transitions. [2022-11-25 18:33:43,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 215.5) internal successors, (862), 4 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:43,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:43,394 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:43,395 INFO L175 Difference]: Start difference. First operand has 80 places, 85 transitions, 275 flow. Second operand 4 states and 862 transitions. [2022-11-25 18:33:43,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 137 transitions, 647 flow [2022-11-25 18:33:43,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 137 transitions, 642 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:33:43,400 INFO L231 Difference]: Finished difference. Result has 83 places, 89 transitions, 308 flow [2022-11-25 18:33:43,401 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=308, PETRI_PLACES=83, PETRI_TRANSITIONS=89} [2022-11-25 18:33:43,401 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 3 predicate places. [2022-11-25 18:33:43,402 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 89 transitions, 308 flow [2022-11-25 18:33:43,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.5) internal successors, (774), 4 states have internal predecessors, (774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:43,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:43,403 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:43,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:33:43,403 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:43,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash 20564530, now seen corresponding path program 1 times [2022-11-25 18:33:43,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:43,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071425884] [2022-11-25 18:33:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:43,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:43,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071425884] [2022-11-25 18:33:43,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071425884] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:43,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:43,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:43,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646265269] [2022-11-25 18:33:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:43,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:43,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:43,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:43,482 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 396 [2022-11-25 18:33:43,484 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 89 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:43,484 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:43,484 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 396 [2022-11-25 18:33:43,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:44,980 INFO L130 PetriNetUnfolder]: 6938/11880 cut-off events. [2022-11-25 18:33:44,981 INFO L131 PetriNetUnfolder]: For 4027/4413 co-relation queries the response was YES. [2022-11-25 18:33:45,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29513 conditions, 11880 events. 6938/11880 cut-off events. For 4027/4413 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 77597 event pairs, 4755 based on Foata normal form. 0/11158 useless extension candidates. Maximal degree in co-relation 29505. Up to 9881 conditions per place. [2022-11-25 18:33:45,055 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 111 selfloop transitions, 8 changer transitions 0/135 dead transitions. [2022-11-25 18:33:45,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 135 transitions, 691 flow [2022-11-25 18:33:45,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 657 transitions. [2022-11-25 18:33:45,058 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2022-11-25 18:33:45,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 657 transitions. [2022-11-25 18:33:45,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 657 transitions. [2022-11-25 18:33:45,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:45,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 657 transitions. [2022-11-25 18:33:45,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:45,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:45,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:45,067 INFO L175 Difference]: Start difference. First operand has 83 places, 89 transitions, 308 flow. Second operand 3 states and 657 transitions. [2022-11-25 18:33:45,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 135 transitions, 691 flow [2022-11-25 18:33:45,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 135 transitions, 690 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:33:45,073 INFO L231 Difference]: Finished difference. Result has 86 places, 96 transitions, 389 flow [2022-11-25 18:33:45,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=86, PETRI_TRANSITIONS=96} [2022-11-25 18:33:45,074 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 6 predicate places. [2022-11-25 18:33:45,074 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 96 transitions, 389 flow [2022-11-25 18:33:45,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:45,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:45,075 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:45,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:33:45,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:45,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:45,076 INFO L85 PathProgramCache]: Analyzing trace with hash 233687100, now seen corresponding path program 1 times [2022-11-25 18:33:45,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:45,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905939457] [2022-11-25 18:33:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:45,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:45,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:45,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905939457] [2022-11-25 18:33:45,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905939457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:45,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:45,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:45,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912567810] [2022-11-25 18:33:45,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:45,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:45,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:45,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:45,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:45,182 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 396 [2022-11-25 18:33:45,183 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 96 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:45,184 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:45,184 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 396 [2022-11-25 18:33:45,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:46,726 INFO L130 PetriNetUnfolder]: 8030/13800 cut-off events. [2022-11-25 18:33:46,726 INFO L131 PetriNetUnfolder]: For 8123/8665 co-relation queries the response was YES. [2022-11-25 18:33:46,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36179 conditions, 13800 events. 8030/13800 cut-off events. For 8123/8665 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 92875 event pairs, 5236 based on Foata normal form. 8/12822 useless extension candidates. Maximal degree in co-relation 36170. Up to 11449 conditions per place. [2022-11-25 18:33:46,816 INFO L137 encePairwiseOnDemand]: 391/396 looper letters, 108 selfloop transitions, 4 changer transitions 2/141 dead transitions. [2022-11-25 18:33:46,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 141 transitions, 774 flow [2022-11-25 18:33:46,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:46,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:46,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2022-11-25 18:33:46,819 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5563973063973064 [2022-11-25 18:33:46,819 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 661 transitions. [2022-11-25 18:33:46,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 661 transitions. [2022-11-25 18:33:46,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:46,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 661 transitions. [2022-11-25 18:33:46,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:46,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:46,827 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:46,827 INFO L175 Difference]: Start difference. First operand has 86 places, 96 transitions, 389 flow. Second operand 3 states and 661 transitions. [2022-11-25 18:33:46,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 141 transitions, 774 flow [2022-11-25 18:33:46,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 141 transitions, 742 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-11-25 18:33:46,846 INFO L231 Difference]: Finished difference. Result has 88 places, 99 transitions, 395 flow [2022-11-25 18:33:46,846 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=395, PETRI_PLACES=88, PETRI_TRANSITIONS=99} [2022-11-25 18:33:46,847 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 8 predicate places. [2022-11-25 18:33:46,847 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 99 transitions, 395 flow [2022-11-25 18:33:46,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:46,848 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:46,848 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:46,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:33:46,848 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:46,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:46,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1199412357, now seen corresponding path program 1 times [2022-11-25 18:33:46,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:46,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399769290] [2022-11-25 18:33:46,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:46,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:46,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:46,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399769290] [2022-11-25 18:33:46,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399769290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:46,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:46,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:46,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728727559] [2022-11-25 18:33:46,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:46,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:46,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:46,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 396 [2022-11-25 18:33:46,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 99 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:46,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:46,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 396 [2022-11-25 18:33:46,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:48,947 INFO L130 PetriNetUnfolder]: 10541/18063 cut-off events. [2022-11-25 18:33:48,947 INFO L131 PetriNetUnfolder]: For 11087/12095 co-relation queries the response was YES. [2022-11-25 18:33:48,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49287 conditions, 18063 events. 10541/18063 cut-off events. For 11087/12095 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 129421 event pairs, 4166 based on Foata normal form. 29/17081 useless extension candidates. Maximal degree in co-relation 49277. Up to 11147 conditions per place. [2022-11-25 18:33:49,077 INFO L137 encePairwiseOnDemand]: 389/396 looper letters, 117 selfloop transitions, 8 changer transitions 2/153 dead transitions. [2022-11-25 18:33:49,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 153 transitions, 833 flow [2022-11-25 18:33:49,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:49,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 664 transitions. [2022-11-25 18:33:49,081 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5589225589225589 [2022-11-25 18:33:49,081 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 664 transitions. [2022-11-25 18:33:49,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 664 transitions. [2022-11-25 18:33:49,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:49,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 664 transitions. [2022-11-25 18:33:49,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.33333333333334) internal successors, (664), 3 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:49,094 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:49,095 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:49,095 INFO L175 Difference]: Start difference. First operand has 88 places, 99 transitions, 395 flow. Second operand 3 states and 664 transitions. [2022-11-25 18:33:49,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 153 transitions, 833 flow [2022-11-25 18:33:49,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 153 transitions, 821 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 18:33:49,125 INFO L231 Difference]: Finished difference. Result has 90 places, 103 transitions, 439 flow [2022-11-25 18:33:49,126 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=439, PETRI_PLACES=90, PETRI_TRANSITIONS=103} [2022-11-25 18:33:49,130 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 10 predicate places. [2022-11-25 18:33:49,130 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 103 transitions, 439 flow [2022-11-25 18:33:49,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:49,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:49,131 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] [2022-11-25 18:33:49,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:33:49,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1769232827, now seen corresponding path program 1 times [2022-11-25 18:33:49,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:49,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584413417] [2022-11-25 18:33:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:49,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:49,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:49,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:49,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584413417] [2022-11-25 18:33:49,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584413417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:49,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:49,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:33:49,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749513217] [2022-11-25 18:33:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:49,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:33:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:49,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:33:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:33:49,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 396 [2022-11-25 18:33:49,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 103 transitions, 439 flow. Second operand has 5 states, 5 states have (on average 181.2) internal successors, (906), 5 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:49,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:49,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 396 [2022-11-25 18:33:49,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:50,617 INFO L130 PetriNetUnfolder]: 4289/8556 cut-off events. [2022-11-25 18:33:50,617 INFO L131 PetriNetUnfolder]: For 5157/5186 co-relation queries the response was YES. [2022-11-25 18:33:50,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23441 conditions, 8556 events. 4289/8556 cut-off events. For 5157/5186 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 63341 event pairs, 1381 based on Foata normal form. 865/8661 useless extension candidates. Maximal degree in co-relation 23430. Up to 4650 conditions per place. [2022-11-25 18:33:50,663 INFO L137 encePairwiseOnDemand]: 377/396 looper letters, 91 selfloop transitions, 22 changer transitions 2/132 dead transitions. [2022-11-25 18:33:50,664 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 132 transitions, 748 flow [2022-11-25 18:33:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:33:50,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 814 transitions. [2022-11-25 18:33:50,668 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5138888888888888 [2022-11-25 18:33:50,669 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 814 transitions. [2022-11-25 18:33:50,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 814 transitions. [2022-11-25 18:33:50,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:50,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 814 transitions. [2022-11-25 18:33:50,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 203.5) internal successors, (814), 4 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:50,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:50,677 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:50,677 INFO L175 Difference]: Start difference. First operand has 90 places, 103 transitions, 439 flow. Second operand 4 states and 814 transitions. [2022-11-25 18:33:50,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 132 transitions, 748 flow [2022-11-25 18:33:50,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 132 transitions, 666 flow, removed 22 selfloop flow, removed 6 redundant places. [2022-11-25 18:33:50,710 INFO L231 Difference]: Finished difference. Result has 83 places, 93 transitions, 402 flow [2022-11-25 18:33:50,710 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=402, PETRI_PLACES=83, PETRI_TRANSITIONS=93} [2022-11-25 18:33:50,711 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 3 predicate places. [2022-11-25 18:33:50,711 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 93 transitions, 402 flow [2022-11-25 18:33:50,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.2) internal successors, (906), 5 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:50,712 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:50,712 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] [2022-11-25 18:33:50,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:33:50,713 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:50,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:50,713 INFO L85 PathProgramCache]: Analyzing trace with hash -145578880, now seen corresponding path program 1 times [2022-11-25 18:33:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:50,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650864905] [2022-11-25 18:33:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:50,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:50,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650864905] [2022-11-25 18:33:50,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650864905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:50,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:50,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:33:50,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755026267] [2022-11-25 18:33:50,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:50,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:33:50,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:50,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:33:50,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:33:50,908 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 396 [2022-11-25 18:33:50,909 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 93 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:50,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:50,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 396 [2022-11-25 18:33:50,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:51,663 INFO L130 PetriNetUnfolder]: 2783/6158 cut-off events. [2022-11-25 18:33:51,663 INFO L131 PetriNetUnfolder]: For 3830/3857 co-relation queries the response was YES. [2022-11-25 18:33:51,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18242 conditions, 6158 events. 2783/6158 cut-off events. For 3830/3857 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 44928 event pairs, 1148 based on Foata normal form. 0/6131 useless extension candidates. Maximal degree in co-relation 18232. Up to 3411 conditions per place. [2022-11-25 18:33:51,679 INFO L137 encePairwiseOnDemand]: 394/396 looper letters, 64 selfloop transitions, 4 changer transitions 36/125 dead transitions. [2022-11-25 18:33:51,679 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 125 transitions, 752 flow [2022-11-25 18:33:51,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:33:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:33:51,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions. [2022-11-25 18:33:51,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5521885521885522 [2022-11-25 18:33:51,689 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 656 transitions. [2022-11-25 18:33:51,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 656 transitions. [2022-11-25 18:33:51,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:51,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 656 transitions. [2022-11-25 18:33:51,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:51,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:51,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 396.0) internal successors, (1584), 4 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:51,697 INFO L175 Difference]: Start difference. First operand has 83 places, 93 transitions, 402 flow. Second operand 3 states and 656 transitions. [2022-11-25 18:33:51,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 125 transitions, 752 flow [2022-11-25 18:33:51,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 125 transitions, 751 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:33:51,704 INFO L231 Difference]: Finished difference. Result has 83 places, 82 transitions, 360 flow [2022-11-25 18:33:51,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=360, PETRI_PLACES=83, PETRI_TRANSITIONS=82} [2022-11-25 18:33:51,707 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, 3 predicate places. [2022-11-25 18:33:51,707 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 82 transitions, 360 flow [2022-11-25 18:33:51,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:51,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:33:51,708 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] [2022-11-25 18:33:51,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:33:51,708 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:33:51,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:33:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1310270296, now seen corresponding path program 1 times [2022-11-25 18:33:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:33:51,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213949949] [2022-11-25 18:33:51,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:33:51,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:33:51,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:33:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:33:52,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:33:52,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213949949] [2022-11-25 18:33:52,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213949949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:33:52,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:33:52,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:33:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231706974] [2022-11-25 18:33:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:33:52,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:33:52,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:33:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:33:52,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:33:52,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 396 [2022-11-25 18:33:52,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 360 flow. Second operand has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:52,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:33:52,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 396 [2022-11-25 18:33:52,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:33:52,716 INFO L130 PetriNetUnfolder]: 1667/4309 cut-off events. [2022-11-25 18:33:52,716 INFO L131 PetriNetUnfolder]: For 3481/3481 co-relation queries the response was YES. [2022-11-25 18:33:52,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13323 conditions, 4309 events. 1667/4309 cut-off events. For 3481/3481 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 32445 event pairs, 655 based on Foata normal form. 168/4460 useless extension candidates. Maximal degree in co-relation 13313. Up to 2812 conditions per place. [2022-11-25 18:33:52,726 INFO L137 encePairwiseOnDemand]: 377/396 looper letters, 0 selfloop transitions, 0 changer transitions 120/120 dead transitions. [2022-11-25 18:33:52,727 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 120 transitions, 721 flow [2022-11-25 18:33:52,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 18:33:52,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 18:33:52,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 810 transitions. [2022-11-25 18:33:52,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5113636363636364 [2022-11-25 18:33:52,730 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 810 transitions. [2022-11-25 18:33:52,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 810 transitions. [2022-11-25 18:33:52,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:33:52,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 810 transitions. [2022-11-25 18:33:52,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:52,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:52,737 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 396.0) internal successors, (1980), 5 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:52,737 INFO L175 Difference]: Start difference. First operand has 83 places, 82 transitions, 360 flow. Second operand 4 states and 810 transitions. [2022-11-25 18:33:52,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 120 transitions, 721 flow [2022-11-25 18:33:52,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 120 transitions, 689 flow, removed 5 selfloop flow, removed 5 redundant places. [2022-11-25 18:33:52,748 INFO L231 Difference]: Finished difference. Result has 78 places, 0 transitions, 0 flow [2022-11-25 18:33:52,748 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=396, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=78, PETRI_TRANSITIONS=0} [2022-11-25 18:33:52,748 INFO L288 CegarLoopForPetriNet]: 80 programPoint places, -2 predicate places. [2022-11-25 18:33:52,749 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 0 transitions, 0 flow [2022-11-25 18:33:52,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 183.8) internal successors, (919), 5 states have internal predecessors, (919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:33:52,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-25 18:33:52,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-25 18:33:52,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-25 18:33:52,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-25 18:33:52,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-25 18:33:52,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-25 18:33:52,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-25 18:33:52,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-25 18:33:52,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-25 18:33:52,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-25 18:33:52,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2022-11-25 18:33:52,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2022-11-25 18:33:52,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-25 18:33:52,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-25 18:33:52,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-11-25 18:33:52,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-11-25 18:33:52,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-25 18:33:52,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-25 18:33:52,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-25 18:33:52,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-25 18:33:52,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-25 18:33:52,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-25 18:33:52,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-25 18:33:52,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-25 18:33:52,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 18:33:52,758 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:33:52,764 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:33:52,764 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:33:52,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:33:52 BasicIcfg [2022-11-25 18:33:52,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:33:52,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:33:52,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:33:52,769 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:33:52,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:33:23" (3/4) ... [2022-11-25 18:33:52,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:33:52,779 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-11-25 18:33:52,780 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-25 18:33:52,785 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-25 18:33:52,786 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:33:52,786 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:33:52,786 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:33:52,831 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:33:52,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:33:52,832 INFO L158 Benchmark]: Toolchain (without parser) took 30909.07ms. Allocated memory was 115.3MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 55.6MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 818.1MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,832 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 115.3MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:33:52,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 535.68ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 55.4MB in the beginning and 111.1MB in the end (delta: -55.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.76ms. Allocated memory is still 157.3MB. Free memory was 111.1MB in the beginning and 108.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,833 INFO L158 Benchmark]: Boogie Preprocessor took 33.75ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,834 INFO L158 Benchmark]: RCFGBuilder took 754.26ms. Allocated memory is still 157.3MB. Free memory was 106.5MB in the beginning and 86.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,834 INFO L158 Benchmark]: TraceAbstraction took 29463.94ms. Allocated memory was 157.3MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 85.9MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 800.0MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,835 INFO L158 Benchmark]: Witness Printer took 62.28ms. Allocated memory is still 4.1GB. Free memory was 3.3GB in the beginning and 3.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:33:52,837 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 115.3MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 535.68ms. Allocated memory was 115.3MB in the beginning and 157.3MB in the end (delta: 41.9MB). Free memory was 55.4MB in the beginning and 111.1MB in the end (delta: -55.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.76ms. Allocated memory is still 157.3MB. Free memory was 111.1MB in the beginning and 108.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.75ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 754.26ms. Allocated memory is still 157.3MB. Free memory was 106.5MB in the beginning and 86.4MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 29463.94ms. Allocated memory was 157.3MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 85.9MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 800.0MB. Max. memory is 16.1GB. * Witness Printer took 62.28ms. Allocated memory is still 4.1GB. Free memory was 3.3GB in the beginning and 3.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 202 PlacesBefore, 80 PlacesAfterwards, 199 TransitionsBefore, 77 TransitionsAfterwards, 13532 CoEnabledTransitionPairs, 10 FixpointIterations, 39 TrivialSequentialCompositions, 125 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 0 ChoiceCompositions, 185 TotalNumberOfCompositions, 67063 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23115, independent: 21993, independent conditional: 0, independent unconditional: 21993, dependent: 1122, dependent conditional: 0, dependent unconditional: 1122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9983, independent: 9818, independent conditional: 0, independent unconditional: 9818, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9983, independent: 9191, independent conditional: 0, independent unconditional: 9191, dependent: 792, dependent conditional: 0, dependent unconditional: 792, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 792, independent: 627, independent conditional: 0, independent unconditional: 627, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 901, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 301, dependent conditional: 0, dependent unconditional: 301, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23115, independent: 12175, independent conditional: 0, independent unconditional: 12175, dependent: 957, dependent conditional: 0, dependent unconditional: 957, unknown: 9983, unknown conditional: 0, unknown unconditional: 9983] , Statistics on independence cache: Total cache size (in pairs): 1359, Positive cache size: 1261, Positive conditional cache size: 0, Positive unconditional cache size: 1261, Negative cache size: 98, Negative conditional cache size: 0, Negative unconditional cache size: 98, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: 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: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: 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, 280 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: 29.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1102 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 759 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 196 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1708 IncrementalHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 196 mSolverCounterUnsat, 100 mSDtfsCounter, 1708 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=439occurred in iteration=8, InterpolantAutomatonStates: 35, 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: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 553 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! [2022-11-25 18:33:52,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e233c3f-265f-4d68-a4cb-e7e1362ff6f5/bin/uautomizer-ZsLfNo2U6R/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