./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f 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_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8 --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 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 --- 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-e04fb08 [2022-11-16 12:20:29,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:20:29,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:20:29,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:20:29,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:20:29,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:20:29,917 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:20:29,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:20:29,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:20:29,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:20:29,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:20:29,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:20:29,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:20:29,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:20:29,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:20:29,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:20:29,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:20:29,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:20:29,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:20:29,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:20:29,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:20:29,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:20:29,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:20:29,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:20:29,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:20:29,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:20:29,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:20:29,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:20:29,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:20:29,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:20:29,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:20:29,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:20:29,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:20:29,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:20:29,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:20:29,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:20:29,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:20:29,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:20:29,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:20:29,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:20:29,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:20:29,986 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:20:30,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:20:30,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:20:30,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:20:30,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:20:30,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:20:30,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:20:30,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:20:30,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:20:30,029 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:20:30,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:20:30,031 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:20:30,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:20:30,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:20:30,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:20:30,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:20:30,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:20:30,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:20:30,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:20:30,033 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:20:30,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:20:30,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:20:30,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:20:30,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:20:30,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:20:30,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:20:30,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:20:30,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:30,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:20:30,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:20:30,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:20:30,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:20:30,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:20:30,039 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:20:30,039 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:20:30,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:20:30,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6a14a531a7a58347cefef713565bcea13a3839848e23eb785379c30b602107 [2022-11-16 12:20:30,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:20:30,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:20:30,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:20:30,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:20:30,447 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:20:30,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2022-11-16 12:20:30,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/data/5892d7a7d/09a841c6da364c509cd3894027db02ef/FLAGe60f32656 [2022-11-16 12:20:30,998 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:20:30,999 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c [2022-11-16 12:20:31,005 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/data/5892d7a7d/09a841c6da364c509cd3894027db02ef/FLAGe60f32656 [2022-11-16 12:20:31,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/data/5892d7a7d/09a841c6da364c509cd3894027db02ef [2022-11-16 12:20:31,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:20:31,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:20:31,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:31,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:20:31,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:20:31,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180e6a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31, skipping insertion in model container [2022-11-16 12:20:31,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,395 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:20:31,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:20:31,653 WARN L229 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_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-11-16 12:20:31,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:31,663 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:20:31,692 WARN L229 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_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/sv-benchmarks/c/weaver/popl20-mult-4.wvr.c[2612,2625] [2022-11-16 12:20:31,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:20:31,708 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:20:31,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31 WrapperNode [2022-11-16 12:20:31,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:20:31,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:31,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:20:31,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:20:31,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,753 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 173 [2022-11-16 12:20:31,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:20:31,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:20:31,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:20:31,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:20:31,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,787 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:20:31,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:20:31,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:20:31,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:20:31,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (1/1) ... [2022-11-16 12:20:31,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:20:31,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:20:31,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:20:31,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:20:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:20:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:20:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:20:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:20:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:20:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:20:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:20:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-16 12:20:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-16 12:20:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:20:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:20:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:20:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:20:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:20:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:20:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:20:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:20:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:20:31,881 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:20:31,994 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:20:32,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:20:32,559 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:20:32,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:20:32,728 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 12:20:32,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:32 BoogieIcfgContainer [2022-11-16 12:20:32,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:20:32,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:20:32,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:20:32,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:20:32,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:20:31" (1/3) ... [2022-11-16 12:20:32,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a9fa77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:32, skipping insertion in model container [2022-11-16 12:20:32,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:20:31" (2/3) ... [2022-11-16 12:20:32,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71a9fa77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:20:32, skipping insertion in model container [2022-11-16 12:20:32,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:32" (3/3) ... [2022-11-16 12:20:32,744 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2022-11-16 12:20:32,753 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:20:32,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:20:32,764 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-16 12:20:32,765 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:20:32,901 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-16 12:20:32,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 201 places, 198 transitions, 428 flow [2022-11-16 12:20:33,077 INFO L130 PetriNetUnfolder]: 10/194 cut-off events. [2022-11-16 12:20:33,077 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 12:20:33,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 194 events. 10/194 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 227 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-11-16 12:20:33,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 198 transitions, 428 flow [2022-11-16 12:20:33,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 172 transitions, 368 flow [2022-11-16 12:20:33,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:20:33,127 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;@5e148d94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:20:33,127 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-11-16 12:20:33,143 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-11-16 12:20:33,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:20:33,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:33,145 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] [2022-11-16 12:20:33,146 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:33,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:33,154 INFO L85 PathProgramCache]: Analyzing trace with hash 18766073, now seen corresponding path program 1 times [2022-11-16 12:20:33,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:33,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773630646] [2022-11-16 12:20:33,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:33,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:33,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:33,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:33,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773630646] [2022-11-16 12:20:33,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773630646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:33,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:33,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:33,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862734817] [2022-11-16 12:20:33,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:33,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:33,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:33,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:33,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:33,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 198 [2022-11-16 12:20:33,540 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 172 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2022-11-16 12:20:33,541 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:33,541 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 198 [2022-11-16 12:20:33,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:34,848 INFO L130 PetriNetUnfolder]: 2736/5731 cut-off events. [2022-11-16 12:20:34,849 INFO L131 PetriNetUnfolder]: For 694/1123 co-relation queries the response was YES. [2022-11-16 12:20:34,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 5731 events. 2736/5731 cut-off events. For 694/1123 co-relation queries the response was YES. Maximal size of possible extension queue 377. Compared 46461 event pairs, 2064 based on Foata normal form. 1/4578 useless extension candidates. Maximal degree in co-relation 9484. Up to 3672 conditions per place. [2022-11-16 12:20:34,935 INFO L137 encePairwiseOnDemand]: 176/198 looper letters, 27 selfloop transitions, 2 changer transitions 1/152 dead transitions. [2022-11-16 12:20:34,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 152 transitions, 386 flow [2022-11-16 12:20:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:34,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2022-11-16 12:20:34,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8249158249158249 [2022-11-16 12:20:34,959 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 490 transitions. [2022-11-16 12:20:34,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 490 transitions. [2022-11-16 12:20:34,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:34,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 490 transitions. [2022-11-16 12:20:34,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 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) [2022-11-16 12:20:34,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:34,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:34,983 INFO L175 Difference]: Start difference. First operand has 176 places, 172 transitions, 368 flow. Second operand 3 states and 490 transitions. [2022-11-16 12:20:34,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 152 transitions, 386 flow [2022-11-16 12:20:34,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 152 transitions, 370 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-16 12:20:34,998 INFO L231 Difference]: Finished difference. Result has 155 places, 151 transitions, 314 flow [2022-11-16 12:20:35,001 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=155, PETRI_TRANSITIONS=151} [2022-11-16 12:20:35,005 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -21 predicate places. [2022-11-16 12:20:35,006 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 151 transitions, 314 flow [2022-11-16 12:20:35,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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) [2022-11-16 12:20:35,007 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:35,007 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] [2022-11-16 12:20:35,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:20:35,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1643163133, now seen corresponding path program 1 times [2022-11-16 12:20:35,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:35,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358549151] [2022-11-16 12:20:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:35,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:35,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:35,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358549151] [2022-11-16 12:20:35,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358549151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:35,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:35,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:35,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267386076] [2022-11-16 12:20:35,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:35,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:35,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:35,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:35,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:35,101 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 198 [2022-11-16 12:20:35,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 151 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2022-11-16 12:20:35,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:35,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 198 [2022-11-16 12:20:35,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:35,286 INFO L130 PetriNetUnfolder]: 121/630 cut-off events. [2022-11-16 12:20:35,286 INFO L131 PetriNetUnfolder]: For 30/34 co-relation queries the response was YES. [2022-11-16 12:20:35,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 630 events. 121/630 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3031 event pairs, 51 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 789. Up to 169 conditions per place. [2022-11-16 12:20:35,294 INFO L137 encePairwiseOnDemand]: 195/198 looper letters, 18 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2022-11-16 12:20:35,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 150 transitions, 352 flow [2022-11-16 12:20:35,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:35,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 489 transitions. [2022-11-16 12:20:35,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8232323232323232 [2022-11-16 12:20:35,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 489 transitions. [2022-11-16 12:20:35,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 489 transitions. [2022-11-16 12:20:35,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:35,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 489 transitions. [2022-11-16 12:20:35,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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) [2022-11-16 12:20:35,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:35,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:35,302 INFO L175 Difference]: Start difference. First operand has 155 places, 151 transitions, 314 flow. Second operand 3 states and 489 transitions. [2022-11-16 12:20:35,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 150 transitions, 352 flow [2022-11-16 12:20:35,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:35,309 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 312 flow [2022-11-16 12:20:35,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2022-11-16 12:20:35,311 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -23 predicate places. [2022-11-16 12:20:35,311 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 312 flow [2022-11-16 12:20:35,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 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) [2022-11-16 12:20:35,312 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:35,312 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] [2022-11-16 12:20:35,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:20:35,313 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash -2095930740, now seen corresponding path program 1 times [2022-11-16 12:20:35,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:35,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89642246] [2022-11-16 12:20:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:35,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:35,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:35,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89642246] [2022-11-16 12:20:35,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89642246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:35,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:35,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:35,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032222360] [2022-11-16 12:20:35,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:35,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:35,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:35,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:35,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:35,410 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 198 [2022-11-16 12:20:35,411 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2022-11-16 12:20:35,411 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:35,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 198 [2022-11-16 12:20:35,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:35,531 INFO L130 PetriNetUnfolder]: 121/629 cut-off events. [2022-11-16 12:20:35,531 INFO L131 PetriNetUnfolder]: For 31/35 co-relation queries the response was YES. [2022-11-16 12:20:35,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 629 events. 121/629 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3021 event pairs, 51 based on Foata normal form. 0/519 useless extension candidates. Maximal degree in co-relation 777. Up to 164 conditions per place. [2022-11-16 12:20:35,540 INFO L137 encePairwiseOnDemand]: 196/198 looper letters, 15 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2022-11-16 12:20:35,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 149 transitions, 342 flow [2022-11-16 12:20:35,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:35,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:35,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 494 transitions. [2022-11-16 12:20:35,542 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8316498316498316 [2022-11-16 12:20:35,542 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 494 transitions. [2022-11-16 12:20:35,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 494 transitions. [2022-11-16 12:20:35,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:35,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 494 transitions. [2022-11-16 12:20:35,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2022-11-16 12:20:35,546 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:35,547 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:35,547 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 312 flow. Second operand 3 states and 494 transitions. [2022-11-16 12:20:35,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 149 transitions, 342 flow [2022-11-16 12:20:35,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 149 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:20:35,551 INFO L231 Difference]: Finished difference. Result has 152 places, 149 transitions, 308 flow [2022-11-16 12:20:35,552 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=152, PETRI_TRANSITIONS=149} [2022-11-16 12:20:35,552 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -24 predicate places. [2022-11-16 12:20:35,553 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 149 transitions, 308 flow [2022-11-16 12:20:35,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 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) [2022-11-16 12:20:35,553 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:35,554 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:35,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:20:35,554 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:35,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:35,555 INFO L85 PathProgramCache]: Analyzing trace with hash 795453930, now seen corresponding path program 1 times [2022-11-16 12:20:35,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:35,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947232953] [2022-11-16 12:20:35,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:35,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:35,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947232953] [2022-11-16 12:20:35,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947232953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:35,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:35,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:35,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623399484] [2022-11-16 12:20:35,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:35,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:35,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:35,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:35,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:35,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 198 [2022-11-16 12:20:35,671 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 149 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:35,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:35,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 198 [2022-11-16 12:20:35,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:36,156 INFO L130 PetriNetUnfolder]: 1225/3017 cut-off events. [2022-11-16 12:20:36,156 INFO L131 PetriNetUnfolder]: For 85/283 co-relation queries the response was YES. [2022-11-16 12:20:36,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4752 conditions, 3017 events. 1225/3017 cut-off events. For 85/283 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 22763 event pairs, 747 based on Foata normal form. 0/2703 useless extension candidates. Maximal degree in co-relation 4714. Up to 1640 conditions per place. [2022-11-16 12:20:36,182 INFO L137 encePairwiseOnDemand]: 190/198 looper letters, 25 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2022-11-16 12:20:36,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 152 transitions, 375 flow [2022-11-16 12:20:36,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:36,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:36,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2022-11-16 12:20:36,185 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8131313131313131 [2022-11-16 12:20:36,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2022-11-16 12:20:36,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2022-11-16 12:20:36,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:36,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2022-11-16 12:20:36,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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) [2022-11-16 12:20:36,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:36,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:36,189 INFO L175 Difference]: Start difference. First operand has 152 places, 149 transitions, 308 flow. Second operand 3 states and 483 transitions. [2022-11-16 12:20:36,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 152 transitions, 375 flow [2022-11-16 12:20:36,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 152 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:20:36,193 INFO L231 Difference]: Finished difference. Result has 150 places, 149 transitions, 327 flow [2022-11-16 12:20:36,194 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=150, PETRI_TRANSITIONS=149} [2022-11-16 12:20:36,195 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -26 predicate places. [2022-11-16 12:20:36,195 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 149 transitions, 327 flow [2022-11-16 12:20:36,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:36,196 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:36,196 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:36,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:20:36,196 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:36,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash 84556006, now seen corresponding path program 1 times [2022-11-16 12:20:36,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:36,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492683449] [2022-11-16 12:20:36,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:36,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:36,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:36,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492683449] [2022-11-16 12:20:36,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492683449] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:36,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:36,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:36,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066951724] [2022-11-16 12:20:36,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:36,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:36,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:36,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:36,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:36,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-16 12:20:36,953 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 149 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 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) [2022-11-16 12:20:36,953 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:36,953 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-16 12:20:36,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:37,127 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][82], [214#(= |#race~c~0| 0), 75#L93-4true, 17#L51-1true, 221#true, 192#L62-1true, 187#L41-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-16 12:20:37,128 INFO L383 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-11-16 12:20:37,128 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-16 12:20:37,128 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-16 12:20:37,128 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-16 12:20:37,272 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 61#thread3ENTRYtrue, 221#true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-16 12:20:37,273 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:37,273 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:37,273 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:37,273 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:37,275 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 104#thread2ENTRYtrue, 221#true, 192#L62-1true, 187#L41-1true, 97#L72-1true, 218#(= |#race~N~0| 0), Black: 216#true]) [2022-11-16 12:20:37,275 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:37,275 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:37,275 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:37,275 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:37,287 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 221#true, 192#L62-1true, 62#thread1ENTRYtrue, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-16 12:20:37,287 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:37,287 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:37,288 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:37,288 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:37,321 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 221#true, 192#L62-1true, 187#L41-1true, 218#(= |#race~N~0| 0), 97#L72-1true, Black: 216#true]) [2022-11-16 12:20:37,321 INFO L383 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-11-16 12:20:37,321 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:20:37,321 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:20:37,321 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-16 12:20:37,576 INFO L130 PetriNetUnfolder]: 1335/2758 cut-off events. [2022-11-16 12:20:37,576 INFO L131 PetriNetUnfolder]: For 3/20 co-relation queries the response was YES. [2022-11-16 12:20:37,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4800 conditions, 2758 events. 1335/2758 cut-off events. For 3/20 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 19808 event pairs, 203 based on Foata normal form. 12/2430 useless extension candidates. Maximal degree in co-relation 4762. Up to 839 conditions per place. [2022-11-16 12:20:37,619 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 51 selfloop transitions, 4 changer transitions 0/164 dead transitions. [2022-11-16 12:20:37,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 164 transitions, 467 flow [2022-11-16 12:20:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2022-11-16 12:20:37,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7289562289562289 [2022-11-16 12:20:37,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 866 transitions. [2022-11-16 12:20:37,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 866 transitions. [2022-11-16 12:20:37,623 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:37,623 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 866 transitions. [2022-11-16 12:20:37,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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) [2022-11-16 12:20:37,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:37,629 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:37,630 INFO L175 Difference]: Start difference. First operand has 150 places, 149 transitions, 327 flow. Second operand 6 states and 866 transitions. [2022-11-16 12:20:37,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 164 transitions, 467 flow [2022-11-16 12:20:37,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 164 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:20:37,635 INFO L231 Difference]: Finished difference. Result has 154 places, 148 transitions, 333 flow [2022-11-16 12:20:37,636 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=333, PETRI_PLACES=154, PETRI_TRANSITIONS=148} [2022-11-16 12:20:37,639 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-16 12:20:37,639 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 148 transitions, 333 flow [2022-11-16 12:20:37,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 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) [2022-11-16 12:20:37,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:37,641 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:37,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:20:37,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:37,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:37,642 INFO L85 PathProgramCache]: Analyzing trace with hash -460351271, now seen corresponding path program 1 times [2022-11-16 12:20:37,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:37,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509470535] [2022-11-16 12:20:37,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:37,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:38,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:38,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509470535] [2022-11-16 12:20:38,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509470535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:38,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:38,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:38,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272811140] [2022-11-16 12:20:38,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:38,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:38,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:38,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:38,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:38,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-16 12:20:38,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 148 transitions, 333 flow. Second operand has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 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) [2022-11-16 12:20:38,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:38,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-16 12:20:38,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:38,378 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [5#L94-4true, 214#(= |#race~c~0| 0), 17#L51-1true, 221#true, 192#L62-1true, 62#thread1ENTRYtrue, 218#(= |#race~N~0| 0), 97#L72-1true, Black: 216#true, 228#true]) [2022-11-16 12:20:38,379 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:38,379 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:38,379 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:38,379 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:38,426 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [5#L94-4true, 214#(= |#race~c~0| 0), 17#L51-1true, 221#true, 192#L62-1true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0), 228#true]) [2022-11-16 12:20:38,426 INFO L383 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-11-16 12:20:38,428 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-16 12:20:38,428 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:20:38,428 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:20:38,718 INFO L130 PetriNetUnfolder]: 1188/2513 cut-off events. [2022-11-16 12:20:38,718 INFO L131 PetriNetUnfolder]: For 78/84 co-relation queries the response was YES. [2022-11-16 12:20:38,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4550 conditions, 2513 events. 1188/2513 cut-off events. For 78/84 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 17870 event pairs, 605 based on Foata normal form. 0/2135 useless extension candidates. Maximal degree in co-relation 4511. Up to 1153 conditions per place. [2022-11-16 12:20:38,749 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 46 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2022-11-16 12:20:38,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 159 transitions, 455 flow [2022-11-16 12:20:38,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:38,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2022-11-16 12:20:38,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7247474747474747 [2022-11-16 12:20:38,752 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 861 transitions. [2022-11-16 12:20:38,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 861 transitions. [2022-11-16 12:20:38,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:38,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 861 transitions. [2022-11-16 12:20:38,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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) [2022-11-16 12:20:38,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:38,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:38,758 INFO L175 Difference]: Start difference. First operand has 154 places, 148 transitions, 333 flow. Second operand 6 states and 861 transitions. [2022-11-16 12:20:38,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 159 transitions, 455 flow [2022-11-16 12:20:38,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 159 transitions, 448 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:38,762 INFO L231 Difference]: Finished difference. Result has 154 places, 147 transitions, 332 flow [2022-11-16 12:20:38,762 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=154, PETRI_TRANSITIONS=147} [2022-11-16 12:20:38,763 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-16 12:20:38,763 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 147 transitions, 332 flow [2022-11-16 12:20:38,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.16666666666666) internal successors, (829), 6 states have internal predecessors, (829), 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) [2022-11-16 12:20:38,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:38,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:38,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:20:38,764 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:38,765 INFO L85 PathProgramCache]: Analyzing trace with hash 947211220, now seen corresponding path program 1 times [2022-11-16 12:20:38,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:38,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067608238] [2022-11-16 12:20:38,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:38,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:39,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:39,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:39,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067608238] [2022-11-16 12:20:39,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067608238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:39,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:39,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722379492] [2022-11-16 12:20:39,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:39,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:39,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:39,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:39,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:39,239 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-16 12:20:39,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 147 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 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) [2022-11-16 12:20:39,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:39,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-16 12:20:39,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:39,760 INFO L130 PetriNetUnfolder]: 1008/2193 cut-off events. [2022-11-16 12:20:39,760 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-16 12:20:39,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3891 conditions, 2193 events. 1008/2193 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15219 event pairs, 685 based on Foata normal form. 0/1879 useless extension candidates. Maximal degree in co-relation 3852. Up to 1254 conditions per place. [2022-11-16 12:20:39,795 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 41 selfloop transitions, 4 changer transitions 0/154 dead transitions. [2022-11-16 12:20:39,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 154 transitions, 436 flow [2022-11-16 12:20:39,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:39,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2022-11-16 12:20:39,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7205387205387206 [2022-11-16 12:20:39,799 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 856 transitions. [2022-11-16 12:20:39,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 856 transitions. [2022-11-16 12:20:39,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:39,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 856 transitions. [2022-11-16 12:20:39,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 142.66666666666666) internal successors, (856), 6 states have internal predecessors, (856), 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) [2022-11-16 12:20:39,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:39,805 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:39,806 INFO L175 Difference]: Start difference. First operand has 154 places, 147 transitions, 332 flow. Second operand 6 states and 856 transitions. [2022-11-16 12:20:39,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 154 transitions, 436 flow [2022-11-16 12:20:39,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 154 transitions, 429 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:39,810 INFO L231 Difference]: Finished difference. Result has 154 places, 146 transitions, 331 flow [2022-11-16 12:20:39,810 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=323, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=154, PETRI_TRANSITIONS=146} [2022-11-16 12:20:39,811 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-16 12:20:39,811 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 146 transitions, 331 flow [2022-11-16 12:20:39,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.16666666666666) internal successors, (835), 6 states have internal predecessors, (835), 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) [2022-11-16 12:20:39,812 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:39,812 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:39,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:20:39,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:39,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1669995861, now seen corresponding path program 1 times [2022-11-16 12:20:39,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:39,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544715780] [2022-11-16 12:20:39,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:39,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:40,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:40,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:40,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544715780] [2022-11-16 12:20:40,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544715780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:40,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:40,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:20:40,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585082939] [2022-11-16 12:20:40,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:40,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:20:40,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:40,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:20:40,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:20:40,435 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 198 [2022-11-16 12:20:40,436 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 146 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 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) [2022-11-16 12:20:40,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:40,437 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 198 [2022-11-16 12:20:40,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:40,543 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][82], [214#(= |#race~c~0| 0), 75#L93-4true, 17#L51-1true, 235#true, 242#true, 192#L62-1true, 187#L41-1true, 218#(= |#race~N~0| 0), Black: 216#true]) [2022-11-16 12:20:40,543 INFO L383 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-11-16 12:20:40,543 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-16 12:20:40,544 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-16 12:20:40,544 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-16 12:20:40,865 INFO L130 PetriNetUnfolder]: 1017/2185 cut-off events. [2022-11-16 12:20:40,865 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 12:20:40,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3863 conditions, 2185 events. 1017/2185 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 15065 event pairs, 703 based on Foata normal form. 0/1887 useless extension candidates. Maximal degree in co-relation 3824. Up to 1331 conditions per place. [2022-11-16 12:20:40,893 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 36 selfloop transitions, 4 changer transitions 0/149 dead transitions. [2022-11-16 12:20:40,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 149 transitions, 417 flow [2022-11-16 12:20:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:20:40,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:20:40,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 851 transitions. [2022-11-16 12:20:40,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7163299663299664 [2022-11-16 12:20:40,897 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 851 transitions. [2022-11-16 12:20:40,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 851 transitions. [2022-11-16 12:20:40,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:40,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 851 transitions. [2022-11-16 12:20:40,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 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) [2022-11-16 12:20:40,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:40,906 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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) [2022-11-16 12:20:40,906 INFO L175 Difference]: Start difference. First operand has 154 places, 146 transitions, 331 flow. Second operand 6 states and 851 transitions. [2022-11-16 12:20:40,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 149 transitions, 417 flow [2022-11-16 12:20:40,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 149 transitions, 410 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:40,911 INFO L231 Difference]: Finished difference. Result has 154 places, 145 transitions, 330 flow [2022-11-16 12:20:40,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=154, PETRI_TRANSITIONS=145} [2022-11-16 12:20:40,914 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -22 predicate places. [2022-11-16 12:20:40,915 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 145 transitions, 330 flow [2022-11-16 12:20:40,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 140.16666666666666) internal successors, (841), 6 states have internal predecessors, (841), 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) [2022-11-16 12:20:40,918 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:20:40,918 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:40,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:20:40,918 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 44 more)] === [2022-11-16 12:20:40,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:20:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash 107999768, now seen corresponding path program 1 times [2022-11-16 12:20:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:20:40,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851388772] [2022-11-16 12:20:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:20:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:20:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:20:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:20:40,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:20:40,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851388772] [2022-11-16 12:20:40,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851388772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:20:40,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:20:40,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:20:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361114177] [2022-11-16 12:20:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:20:40,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:20:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:20:40,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:20:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:20:40,996 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 198 [2022-11-16 12:20:40,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 145 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2022-11-16 12:20:40,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:20:40,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 198 [2022-11-16 12:20:40,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:20:41,055 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([600] L62-6-->L62-1: Formula: (= |v_#race~N~0_7| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_7|} AuxVars[] AssignedVars[#race~N~0][82], [214#(= |#race~c~0| 0), 75#L93-4true, 17#L51-1true, 242#true, 192#L62-1true, 249#true, 187#L41-1true, 218#(= |#race~N~0| 0), Black: 216#true]) [2022-11-16 12:20:41,055 INFO L383 tUnfolder$Statistics]: this new event has 75 ancestors and is cut-off event [2022-11-16 12:20:41,056 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-16 12:20:41,056 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-16 12:20:41,056 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-16 12:20:41,089 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 61#thread3ENTRYtrue, 242#true, 249#true, 187#L41-1true, Black: 216#true, 218#(= |#race~N~0| 0), 97#L72-1true]) [2022-11-16 12:20:41,090 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:41,090 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:41,090 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:41,090 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:41,091 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 104#thread2ENTRYtrue, 242#true, 192#L62-1true, 249#true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-16 12:20:41,091 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:41,091 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:41,092 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:41,092 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:41,096 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 242#true, 192#L62-1true, 249#true, 62#thread1ENTRYtrue, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-16 12:20:41,096 INFO L383 tUnfolder$Statistics]: this new event has 81 ancestors and is cut-off event [2022-11-16 12:20:41,096 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-16 12:20:41,097 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:41,097 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-16 12:20:41,104 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([616] L72-6-->L72-1: Formula: (= |v_#race~N~0_10| 0) InVars {} OutVars{#race~N~0=|v_#race~N~0_10|} AuxVars[] AssignedVars[#race~N~0][99], [214#(= |#race~c~0| 0), 5#L94-4true, 17#L51-1true, 242#true, 192#L62-1true, 249#true, 187#L41-1true, 97#L72-1true, Black: 216#true, 218#(= |#race~N~0| 0)]) [2022-11-16 12:20:41,105 INFO L383 tUnfolder$Statistics]: this new event has 83 ancestors and is cut-off event [2022-11-16 12:20:41,105 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:20:41,105 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-16 12:20:41,105 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-16 12:20:41,164 INFO L130 PetriNetUnfolder]: 319/1147 cut-off events. [2022-11-16 12:20:41,165 INFO L131 PetriNetUnfolder]: For 37/60 co-relation queries the response was YES. [2022-11-16 12:20:41,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1147 events. 319/1147 cut-off events. For 37/60 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 7223 event pairs, 114 based on Foata normal form. 1/993 useless extension candidates. Maximal degree in co-relation 1641. Up to 247 conditions per place. [2022-11-16 12:20:41,174 INFO L137 encePairwiseOnDemand]: 196/198 looper letters, 0 selfloop transitions, 0 changer transitions 144/144 dead transitions. [2022-11-16 12:20:41,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 354 flow [2022-11-16 12:20:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:20:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:20:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 500 transitions. [2022-11-16 12:20:41,176 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8417508417508418 [2022-11-16 12:20:41,176 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 500 transitions. [2022-11-16 12:20:41,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 500 transitions. [2022-11-16 12:20:41,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:20:41,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 500 transitions. [2022-11-16 12:20:41,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2022-11-16 12:20:41,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:41,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 198.0) internal successors, (792), 4 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:20:41,180 INFO L175 Difference]: Start difference. First operand has 154 places, 145 transitions, 330 flow. Second operand 3 states and 500 transitions. [2022-11-16 12:20:41,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 354 flow [2022-11-16 12:20:41,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 144 transitions, 347 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:20:41,182 INFO L231 Difference]: Finished difference. Result has 151 places, 0 transitions, 0 flow [2022-11-16 12:20:41,183 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=151, PETRI_TRANSITIONS=0} [2022-11-16 12:20:41,184 INFO L288 CegarLoopForPetriNet]: 176 programPoint places, -25 predicate places. [2022-11-16 12:20:41,184 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 0 transitions, 0 flow [2022-11-16 12:20:41,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 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) [2022-11-16 12:20:41,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (47 of 48 remaining) [2022-11-16 12:20:41,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (46 of 48 remaining) [2022-11-16 12:20:41,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (45 of 48 remaining) [2022-11-16 12:20:41,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (44 of 48 remaining) [2022-11-16 12:20:41,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (43 of 48 remaining) [2022-11-16 12:20:41,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (42 of 48 remaining) [2022-11-16 12:20:41,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (41 of 48 remaining) [2022-11-16 12:20:41,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (40 of 48 remaining) [2022-11-16 12:20:41,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (39 of 48 remaining) [2022-11-16 12:20:41,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (38 of 48 remaining) [2022-11-16 12:20:41,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (37 of 48 remaining) [2022-11-16 12:20:41,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (36 of 48 remaining) [2022-11-16 12:20:41,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (35 of 48 remaining) [2022-11-16 12:20:41,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 48 remaining) [2022-11-16 12:20:41,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 48 remaining) [2022-11-16 12:20:41,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 48 remaining) [2022-11-16 12:20:41,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (31 of 48 remaining) [2022-11-16 12:20:41,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (30 of 48 remaining) [2022-11-16 12:20:41,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (29 of 48 remaining) [2022-11-16 12:20:41,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (28 of 48 remaining) [2022-11-16 12:20:41,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (27 of 48 remaining) [2022-11-16 12:20:41,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 48 remaining) [2022-11-16 12:20:41,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 48 remaining) [2022-11-16 12:20:41,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 48 remaining) [2022-11-16 12:20:41,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 48 remaining) [2022-11-16 12:20:41,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (22 of 48 remaining) [2022-11-16 12:20:41,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (21 of 48 remaining) [2022-11-16 12:20:41,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (20 of 48 remaining) [2022-11-16 12:20:41,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (19 of 48 remaining) [2022-11-16 12:20:41,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (18 of 48 remaining) [2022-11-16 12:20:41,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 48 remaining) [2022-11-16 12:20:41,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 48 remaining) [2022-11-16 12:20:41,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 48 remaining) [2022-11-16 12:20:41,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 48 remaining) [2022-11-16 12:20:41,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (13 of 48 remaining) [2022-11-16 12:20:41,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (12 of 48 remaining) [2022-11-16 12:20:41,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (11 of 48 remaining) [2022-11-16 12:20:41,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 48 remaining) [2022-11-16 12:20:41,206 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 48 remaining) [2022-11-16 12:20:41,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (8 of 48 remaining) [2022-11-16 12:20:41,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (7 of 48 remaining) [2022-11-16 12:20:41,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (6 of 48 remaining) [2022-11-16 12:20:41,207 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (5 of 48 remaining) [2022-11-16 12:20:41,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (4 of 48 remaining) [2022-11-16 12:20:41,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (3 of 48 remaining) [2022-11-16 12:20:41,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (2 of 48 remaining) [2022-11-16 12:20:41,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (1 of 48 remaining) [2022-11-16 12:20:41,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (0 of 48 remaining) [2022-11-16 12:20:41,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:20:41,209 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:20:41,215 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 12:20:41,215 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:20:41,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:20:41 BasicIcfg [2022-11-16 12:20:41,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:20:41,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:20:41,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:20:41,222 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:20:41,222 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:20:32" (3/4) ... [2022-11-16 12:20:41,225 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:20:41,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-16 12:20:41,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-16 12:20:41,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-16 12:20:41,231 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-16 12:20:41,238 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-16 12:20:41,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-16 12:20:41,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:20:41,239 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:20:41,290 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:20:41,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:20:41,291 INFO L158 Benchmark]: Toolchain (without parser) took 9913.91ms. Allocated memory was 117.4MB in the beginning and 591.4MB in the end (delta: 474.0MB). Free memory was 74.8MB in the beginning and 330.8MB in the end (delta: -256.0MB). Peak memory consumption was 217.2MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,292 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:20:41,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.08ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 90.3MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.35ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 87.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,293 INFO L158 Benchmark]: Boogie Preprocessor took 36.65ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 86.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,293 INFO L158 Benchmark]: RCFGBuilder took 941.45ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 57.0MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,293 INFO L158 Benchmark]: TraceAbstraction took 8485.57ms. Allocated memory was 117.4MB in the beginning and 591.4MB in the end (delta: 474.0MB). Free memory was 56.4MB in the beginning and 335.0MB in the end (delta: -278.5MB). Peak memory consumption was 198.3MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,294 INFO L158 Benchmark]: Witness Printer took 68.76ms. Allocated memory is still 591.4MB. Free memory was 333.9MB in the beginning and 330.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 12:20:41,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 91.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.08ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 90.3MB in the end (delta: -15.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.35ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 87.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.65ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 86.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 941.45ms. Allocated memory is still 117.4MB. Free memory was 86.1MB in the beginning and 57.0MB in the end (delta: 29.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8485.57ms. Allocated memory was 117.4MB in the beginning and 591.4MB in the end (delta: 474.0MB). Free memory was 56.4MB in the beginning and 335.0MB in the end (delta: -278.5MB). Peak memory consumption was 198.3MB. Max. memory is 16.1GB. * Witness Printer took 68.76ms. Allocated memory is still 591.4MB. Free memory was 333.9MB in the beginning and 330.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 97]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: 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 9 procedures, 255 locations, 48 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: 8.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 537 IncrementalHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 87 mSDtfsCounter, 537 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 612 NumberOfCodeBlocks, 612 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 603 ConstructedInterpolants, 0 QuantifiedInterpolants, 937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 26 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-16 12:20:41,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4803b2ba-9ae2-43df-bb60-d925c7f2d87d/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE