./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8 --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 cfa53b3a6eade068c4346d28766037c8d26fae61c62dd4c8f6fc2f9d68567d2c --- 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-2329fc7 [2022-12-13 11:25:46,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:25:46,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:25:46,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:25:46,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:25:46,915 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:25:46,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:25:46,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:25:46,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:25:46,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:25:46,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:25:46,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:25:46,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:25:46,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:25:46,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:25:46,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:25:46,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:25:46,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:25:46,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:25:46,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:25:46,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:25:46,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:25:46,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:25:46,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:25:46,937 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:25:46,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:25:46,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:25:46,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:25:46,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:25:46,939 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:25:46,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:25:46,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:25:46,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:25:46,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:25:46,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:25:46,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:25:46,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:25:46,943 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:25:46,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:25:46,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:25:46,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:25:46,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 11:25:46,970 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:25:46,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:25:46,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:25:46,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:25:46,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:25:46,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:25:46,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:25:46,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:25:46,978 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:25:46,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:25:46,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:25:46,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:25:46,980 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 11:25:46,980 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:25:46,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:25:46,980 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:25:46,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:25:46,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:25:46,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:25:46,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:25:46,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:25:46,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:25:46,981 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:25:46,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:25:46,983 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:25:46,983 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfa53b3a6eade068c4346d28766037c8d26fae61c62dd4c8f6fc2f9d68567d2c [2022-12-13 11:25:47,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:25:47,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:25:47,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:25:47,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:25:47,193 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:25:47,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2022-12-13 11:25:49,778 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:25:49,932 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:25:49,932 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2022-12-13 11:25:49,937 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/data/dfd99aaed/8ff6cbd21648476bb44bea9239236ee8/FLAG7f05f5a6b [2022-12-13 11:25:50,352 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/data/dfd99aaed/8ff6cbd21648476bb44bea9239236ee8 [2022-12-13 11:25:50,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:25:50,355 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:25:50,356 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:25:50,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:25:50,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:25:50,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c5ada70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50, skipping insertion in model container [2022-12-13 11:25:50,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:25:50,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:25:50,513 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2022-12-13 11:25:50,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:25:50,523 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:25:50,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c[2303,2316] [2022-12-13 11:25:50,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:25:50,552 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:25:50,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50 WrapperNode [2022-12-13 11:25:50,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:25:50,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:25:50,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:25:50,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:25:50,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,583 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 200 [2022-12-13 11:25:50,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:25:50,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:25:50,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:25:50,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:25:50,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:25:50,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:25:50,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:25:50,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:25:50,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (1/1) ... [2022-12-13 11:25:50,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:25:50,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:25:50,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:25:50,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:25:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:25:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 11:25:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 11:25:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 11:25:50,657 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 11:25:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:25:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:25:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:25:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:25:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:25:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:25:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:25:50,659 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:25:50,740 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:25:50,741 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:25:51,040 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:25:51,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:25:51,049 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:25:51,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:25:51 BoogieIcfgContainer [2022-12-13 11:25:51,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:25:51,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:25:51,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:25:51,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:25:51,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:25:50" (1/3) ... [2022-12-13 11:25:51,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcbb321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:25:51, skipping insertion in model container [2022-12-13 11:25:51,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:25:50" (2/3) ... [2022-12-13 11:25:51,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bcbb321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:25:51, skipping insertion in model container [2022-12-13 11:25:51,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:25:51" (3/3) ... [2022-12-13 11:25:51,057 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2022-12-13 11:25:51,064 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:25:51,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:25:51,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-12-13 11:25:51,072 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:25:51,147 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 11:25:51,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 270 transitions, 556 flow [2022-12-13 11:25:51,270 INFO L130 PetriNetUnfolder]: 14/268 cut-off events. [2022-12-13 11:25:51,270 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:25:51,276 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 268 events. 14/268 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 477 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2022-12-13 11:25:51,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 270 transitions, 556 flow [2022-12-13 11:25:51,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 247 transitions, 506 flow [2022-12-13 11:25:51,284 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:25:51,292 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 247 transitions, 506 flow [2022-12-13 11:25:51,294 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 247 transitions, 506 flow [2022-12-13 11:25:51,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 247 transitions, 506 flow [2022-12-13 11:25:51,331 INFO L130 PetriNetUnfolder]: 12/247 cut-off events. [2022-12-13 11:25:51,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:25:51,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 247 events. 12/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 464 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2022-12-13 11:25:51,337 INFO L119 LiptonReduction]: Number of co-enabled transitions 11160 [2022-12-13 11:25:55,468 INFO L134 LiptonReduction]: Checked pairs total: 25971 [2022-12-13 11:25:55,469 INFO L136 LiptonReduction]: Total number of compositions: 265 [2022-12-13 11:25:55,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:25:55,486 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;@4bc55f29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:25:55,486 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-12-13 11:25:55,487 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:25:55,487 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:25:55,488 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:25:55,488 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:25:55,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-13 11:25:55,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:55,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1005, now seen corresponding path program 1 times [2022-12-13 11:25:55,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:25:55,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633593744] [2022-12-13 11:25:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:55,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:25:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:25:55,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:25:55,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633593744] [2022-12-13 11:25:55,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633593744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:25:55,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:25:55,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:25:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308674628] [2022-12-13 11:25:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:25:55,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:25:55,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:25:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:25:55,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:25:55,594 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 535 [2022-12-13 11:25:55,602 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 126 flow. Second operand has 2 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 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) [2022-12-13 11:25:55,602 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:25:55,602 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 535 [2022-12-13 11:25:55,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:25:55,673 INFO L130 PetriNetUnfolder]: 161/357 cut-off events. [2022-12-13 11:25:55,674 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-13 11:25:55,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 357 events. 161/357 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1885 event pairs, 105 based on Foata normal form. 1/267 useless extension candidates. Maximal degree in co-relation 570. Up to 260 conditions per place. [2022-12-13 11:25:55,678 INFO L137 encePairwiseOnDemand]: 521/535 looper letters, 21 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2022-12-13 11:25:55,678 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 142 flow [2022-12-13 11:25:55,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:25:55,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:25:55,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 552 transitions. [2022-12-13 11:25:55,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5158878504672897 [2022-12-13 11:25:55,690 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 552 transitions. [2022-12-13 11:25:55,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 552 transitions. [2022-12-13 11:25:55,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:25:55,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 552 transitions. [2022-12-13 11:25:55,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.0) internal successors, (552), 2 states have internal predecessors, (552), 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) [2022-12-13 11:25:55,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 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) [2022-12-13 11:25:55,704 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 535.0) internal successors, (1605), 3 states have internal predecessors, (1605), 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) [2022-12-13 11:25:55,706 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 126 flow. Second operand 2 states and 552 transitions. [2022-12-13 11:25:55,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 142 flow [2022-12-13 11:25:55,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:25:55,712 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 87 flow [2022-12-13 11:25:55,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=535, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2022-12-13 11:25:55,717 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2022-12-13 11:25:55,717 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 87 flow [2022-12-13 11:25:55,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 258.5) internal successors, (517), 2 states have internal predecessors, (517), 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) [2022-12-13 11:25:55,718 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:25:55,718 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:25:55,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:25:55,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-13 11:25:55,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash 30886393, now seen corresponding path program 1 times [2022-12-13 11:25:55,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:25:55,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664111039] [2022-12-13 11:25:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:25:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:55,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:25:55,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:25:55,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664111039] [2022-12-13 11:25:55,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664111039] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:25:55,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:25:55,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:25:55,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789800314] [2022-12-13 11:25:55,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:25:55,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:25:55,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:25:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:25:55,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:25:55,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 535 [2022-12-13 11:25:55,796 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2022-12-13 11:25:55,796 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:25:55,796 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 535 [2022-12-13 11:25:55,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:25:55,879 INFO L130 PetriNetUnfolder]: 289/582 cut-off events. [2022-12-13 11:25:55,879 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 11:25:55,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 582 events. 289/582 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2849 event pairs, 114 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 1059. Up to 457 conditions per place. [2022-12-13 11:25:55,882 INFO L137 encePairwiseOnDemand]: 529/535 looper letters, 31 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2022-12-13 11:25:55,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 166 flow [2022-12-13 11:25:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:25:55,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:25:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 781 transitions. [2022-12-13 11:25:55,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4866043613707165 [2022-12-13 11:25:55,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 781 transitions. [2022-12-13 11:25:55,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 781 transitions. [2022-12-13 11:25:55,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:25:55,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 781 transitions. [2022-12-13 11:25:55,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2022-12-13 11:25:55,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:55,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:55,895 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 87 flow. Second operand 3 states and 781 transitions. [2022-12-13 11:25:55,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 166 flow [2022-12-13 11:25:55,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:25:55,897 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 102 flow [2022-12-13 11:25:55,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=535, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2022-12-13 11:25:55,898 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2022-12-13 11:25:55,898 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 102 flow [2022-12-13 11:25:55,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2022-12-13 11:25:55,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:25:55,899 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 11:25:55,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:25:55,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-13 11:25:55,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash -373544163, now seen corresponding path program 1 times [2022-12-13 11:25:55,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:25:55,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185256064] [2022-12-13 11:25:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:55,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:25:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:25:55,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:25:55,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185256064] [2022-12-13 11:25:55,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185256064] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:25:55,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:25:55,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:25:55,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773220168] [2022-12-13 11:25:55,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:25:55,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:25:55,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:25:55,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:25:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:25:55,955 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 535 [2022-12-13 11:25:55,957 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2022-12-13 11:25:55,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:25:55,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 535 [2022-12-13 11:25:55,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:25:56,023 INFO L130 PetriNetUnfolder]: 194/439 cut-off events. [2022-12-13 11:25:56,023 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:25:56,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 439 events. 194/439 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2328 event pairs, 60 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 779. Up to 302 conditions per place. [2022-12-13 11:25:56,025 INFO L137 encePairwiseOnDemand]: 529/535 looper letters, 25 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2022-12-13 11:25:56,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 165 flow [2022-12-13 11:25:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:25:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:25:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 775 transitions. [2022-12-13 11:25:56,027 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48286604361370716 [2022-12-13 11:25:56,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 775 transitions. [2022-12-13 11:25:56,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 775 transitions. [2022-12-13 11:25:56,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:25:56,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 775 transitions. [2022-12-13 11:25:56,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 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) [2022-12-13 11:25:56,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:56,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:56,031 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 102 flow. Second operand 3 states and 775 transitions. [2022-12-13 11:25:56,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 165 flow [2022-12-13 11:25:56,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 165 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:25:56,032 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 117 flow [2022-12-13 11:25:56,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=535, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2022-12-13 11:25:56,033 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2022-12-13 11:25:56,033 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 117 flow [2022-12-13 11:25:56,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 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) [2022-12-13 11:25:56,033 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:25:56,033 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:25:56,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:25:56,033 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-13 11:25:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1379437967, now seen corresponding path program 1 times [2022-12-13 11:25:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:25:56,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98776602] [2022-12-13 11:25:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:56,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:25:56,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:56,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:25:56,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:25:56,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98776602] [2022-12-13 11:25:56,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98776602] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:25:56,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:25:56,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:25:56,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385340593] [2022-12-13 11:25:56,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:25:56,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:25:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:25:56,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:25:56,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:25:56,076 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 535 [2022-12-13 11:25:56,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2022-12-13 11:25:56,077 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:25:56,077 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 535 [2022-12-13 11:25:56,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:25:56,182 INFO L130 PetriNetUnfolder]: 324/602 cut-off events. [2022-12-13 11:25:56,182 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 11:25:56,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 602 events. 324/602 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2910 event pairs, 115 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 1232. Up to 293 conditions per place. [2022-12-13 11:25:56,185 INFO L137 encePairwiseOnDemand]: 531/535 looper letters, 40 selfloop transitions, 2 changer transitions 3/59 dead transitions. [2022-12-13 11:25:56,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 59 transitions, 247 flow [2022-12-13 11:25:56,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:25:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:25:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2022-12-13 11:25:56,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.497196261682243 [2022-12-13 11:25:56,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 798 transitions. [2022-12-13 11:25:56,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 798 transitions. [2022-12-13 11:25:56,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:25:56,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 798 transitions. [2022-12-13 11:25:56,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 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) [2022-12-13 11:25:56,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:56,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:56,195 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 117 flow. Second operand 3 states and 798 transitions. [2022-12-13 11:25:56,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 59 transitions, 247 flow [2022-12-13 11:25:56,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 59 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:25:56,197 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 127 flow [2022-12-13 11:25:56,197 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=535, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2022-12-13 11:25:56,198 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2022-12-13 11:25:56,198 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 127 flow [2022-12-13 11:25:56,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 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) [2022-12-13 11:25:56,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:25:56,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:25:56,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:25:56,199 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-12-13 11:25:56,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:25:56,200 INFO L85 PathProgramCache]: Analyzing trace with hash 325974789, now seen corresponding path program 1 times [2022-12-13 11:25:56,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:25:56,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338920086] [2022-12-13 11:25:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:25:56,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:25:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:25:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:25:56,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:25:56,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338920086] [2022-12-13 11:25:56,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338920086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:25:56,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:25:56,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:25:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728223138] [2022-12-13 11:25:56,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:25:56,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:25:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:25:56,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:25:56,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:25:56,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 535 [2022-12-13 11:25:56,248 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-12-13 11:25:56,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:25:56,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 535 [2022-12-13 11:25:56,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:25:56,342 INFO L130 PetriNetUnfolder]: 308/586 cut-off events. [2022-12-13 11:25:56,342 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-12-13 11:25:56,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 586 events. 308/586 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2790 event pairs, 102 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1251. Up to 304 conditions per place. [2022-12-13 11:25:56,343 INFO L137 encePairwiseOnDemand]: 531/535 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2022-12-13 11:25:56,344 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 251 flow [2022-12-13 11:25:56,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:25:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:25:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2022-12-13 11:25:56,345 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49595015576323986 [2022-12-13 11:25:56,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2022-12-13 11:25:56,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2022-12-13 11:25:56,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:25:56,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2022-12-13 11:25:56,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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) [2022-12-13 11:25:56,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:56,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 535.0) internal successors, (2140), 4 states have internal predecessors, (2140), 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) [2022-12-13 11:25:56,350 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 127 flow. Second operand 3 states and 796 transitions. [2022-12-13 11:25:56,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 251 flow [2022-12-13 11:25:56,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:25:56,352 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2022-12-13 11:25:56,352 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=535, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2022-12-13 11:25:56,353 INFO L288 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2022-12-13 11:25:56,353 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2022-12-13 11:25:56,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.33333333333334) internal successors, (760), 3 states have internal predecessors, (760), 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) [2022-12-13 11:25:56,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-12-13 11:25:56,356 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-12-13 11:25:56,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-12-13 11:25:56,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-12-13 11:25:56,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-12-13 11:25:56,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-12-13 11:25:56,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-12-13 11:25:56,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-12-13 11:25:56,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-12-13 11:25:56,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-12-13 11:25:56,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-12-13 11:25:56,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-12-13 11:25:56,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-12-13 11:25:56,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2022-12-13 11:25:56,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-12-13 11:25:56,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-12-13 11:25:56,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-12-13 11:25:56,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2022-12-13 11:25:56,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2022-12-13 11:25:56,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-12-13 11:25:56,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-12-13 11:25:56,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-12-13 11:25:56,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-12-13 11:25:56,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-12-13 11:25:56,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-12-13 11:25:56,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-12-13 11:25:56,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:25:56,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 11:25:56,366 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:25:56,366 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:25:56,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:25:56 BasicIcfg [2022-12-13 11:25:56,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:25:56,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:25:56,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:25:56,371 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:25:56,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:25:51" (3/4) ... [2022-12-13 11:25:56,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:25:56,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 11:25:56,379 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 11:25:56,383 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 11:25:56,383 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:25:56,383 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:25:56,384 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:25:56,419 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:25:56,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:25:56,420 INFO L158 Benchmark]: Toolchain (without parser) took 6065.15ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 101.1MB in the beginning and 55.5MB in the end (delta: 45.5MB). Peak memory consumption was 76.9MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,420 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:25:56,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.76ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 89.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.11ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,421 INFO L158 Benchmark]: Boogie Preprocessor took 21.23ms. Allocated memory is still 136.3MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,421 INFO L158 Benchmark]: RCFGBuilder took 445.57ms. Allocated memory is still 136.3MB. Free memory was 85.5MB in the beginning and 64.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,422 INFO L158 Benchmark]: TraceAbstraction took 5317.85ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 64.2MB in the beginning and 58.7MB in the end (delta: 5.5MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,422 INFO L158 Benchmark]: Witness Printer took 48.71ms. Allocated memory is still 165.7MB. Free memory was 58.7MB in the beginning and 55.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:25:56,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.76ms. Allocated memory is still 136.3MB. Free memory was 100.6MB in the beginning and 89.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.11ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 87.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.23ms. Allocated memory is still 136.3MB. Free memory was 87.2MB in the beginning and 85.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.57ms. Allocated memory is still 136.3MB. Free memory was 85.5MB in the beginning and 64.9MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5317.85ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 64.2MB in the beginning and 58.7MB in the end (delta: 5.5MB). Peak memory consumption was 37.0MB. Max. memory is 16.1GB. * Witness Printer took 48.71ms. Allocated memory is still 165.7MB. Free memory was 58.7MB in the beginning and 55.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 242 PlacesBefore, 60 PlacesAfterwards, 247 TransitionsBefore, 57 TransitionsAfterwards, 11160 CoEnabledTransitionPairs, 7 FixpointIterations, 113 TrivialSequentialCompositions, 101 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 27 ConcurrentYvCompositions, 8 ChoiceCompositions, 265 TotalNumberOfCompositions, 25971 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14193, independent: 13714, independent conditional: 0, independent unconditional: 13714, dependent: 479, dependent conditional: 0, dependent unconditional: 479, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6300, independent: 6250, independent conditional: 0, independent unconditional: 6250, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14193, independent: 7464, independent conditional: 0, independent unconditional: 7464, dependent: 429, dependent conditional: 0, dependent unconditional: 429, unknown: 6300, unknown conditional: 0, unknown unconditional: 6300] , Statistics on independence cache: Total cache size (in pairs): 392, Positive cache size: 363, Positive conditional cache size: 0, Positive unconditional cache size: 363, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 373 locations, 38 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: 5.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 228 IncrementalHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 9 mSDtfsCounter, 228 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:25:56,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0010edf2-e019-4425-824b-8fc3fe5cb1ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE