./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc --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 db5eab03de8fef3e653289c5dcf0b220be6d8b09a4df3c07d6d5a066426e755a --- 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-5e519f3 [2022-11-02 20:22:20,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:22:20,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:22:20,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:22:20,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:22:20,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:22:20,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:22:20,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:22:20,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:22:20,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:22:20,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:22:20,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:22:20,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:22:20,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:22:20,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:22:20,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:22:20,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:22:20,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:22:20,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:22:20,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:22:20,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:22:20,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:22:20,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:22:20,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:22:20,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:22:20,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:22:20,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:22:20,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:22:20,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:22:20,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:22:20,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:22:20,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:22:20,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:22:20,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:22:20,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:22:20,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:22:20,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:22:20,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:22:20,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:22:20,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:22:20,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:22:20,906 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:22:20,942 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:22:20,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:22:20,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:22:20,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:22:20,944 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:22:20,944 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:22:20,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:22:20,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:22:20,945 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:22:20,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:22:20,947 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:22:20,947 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:22:20,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:22:20,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:22:20,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:22:20,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:22:20,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:22:20,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:22:20,948 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:22:20,948 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:22:20,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:22:20,949 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:22:20,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:22:20,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:22:20,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:22:20,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:22:20,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:20,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:22:20,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:22:20,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:22:20,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:22:20,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:22:20,951 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:22:20,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:22:20,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:22:20,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db5eab03de8fef3e653289c5dcf0b220be6d8b09a4df3c07d6d5a066426e755a [2022-11-02 20:22:21,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:22:21,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:22:21,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:22:21,303 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:22:21,304 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:22:21,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2022-11-02 20:22:21,396 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/data/16b35b5f1/64b9ae525463490e8ea4e7318af9c7e6/FLAGca2565757 [2022-11-02 20:22:22,004 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:22:22,006 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2022-11-02 20:22:22,031 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/data/16b35b5f1/64b9ae525463490e8ea4e7318af9c7e6/FLAGca2565757 [2022-11-02 20:22:22,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/data/16b35b5f1/64b9ae525463490e8ea4e7318af9c7e6 [2022-11-02 20:22:22,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:22:22,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:22:22,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:22,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:22:22,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:22:22,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:22" (1/1) ... [2022-11-02 20:22:22,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0a175d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:22, skipping insertion in model container [2022-11-02 20:22:22,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:22:22" (1/1) ... [2022-11-02 20:22:22,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:22:22,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:22:22,888 WARN L230 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_3d65e37e-e159-4a01-97ca-6834c61f5bee/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051] [2022-11-02 20:22:22,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:23,000 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:22:23,034 WARN L230 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_3d65e37e-e159-4a01-97ca-6834c61f5bee/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i[47038,47051] [2022-11-02 20:22:23,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:22:23,153 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:22:23,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23 WrapperNode [2022-11-02 20:22:23,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:22:23,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:23,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:22:23,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:22:23,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,231 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 340 [2022-11-02 20:22:23,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:22:23,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:22:23,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:22:23,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:22:23,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,290 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:22:23,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:22:23,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:22:23,299 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:22:23,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (1/1) ... [2022-11-02 20:22:23,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:22:23,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:22:23,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:22:23,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d65e37e-e159-4a01-97ca-6834c61f5bee/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:22:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:22:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:22:23,440 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-02 20:22:23,441 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-02 20:22:23,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:22:23,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:22:23,443 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-02 20:22:23,443 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-02 20:22:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:22:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 20:22:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:22:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:22:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:22:23,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:22:23,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:22:23,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:22:23,447 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:22:23,690 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:22:23,692 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:22:24,421 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:22:24,432 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:22:24,432 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-02 20:22:24,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:24 BoogieIcfgContainer [2022-11-02 20:22:24,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:22:24,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:22:24,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:22:24,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:22:24,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:22:22" (1/3) ... [2022-11-02 20:22:24,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3e845c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:24, skipping insertion in model container [2022-11-02 20:22:24,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:22:23" (2/3) ... [2022-11-02 20:22:24,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3e845c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:22:24, skipping insertion in model container [2022-11-02 20:22:24,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:22:24" (3/3) ... [2022-11-02 20:22:24,445 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2022-11-02 20:22:24,455 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:22:24,467 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:22:24,467 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-02 20:22:24,467 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:22:24,647 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-02 20:22:24,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 352 places, 372 transitions, 766 flow [2022-11-02 20:22:24,986 INFO L130 PetriNetUnfolder]: 54/664 cut-off events. [2022-11-02 20:22:24,987 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-11-02 20:22:25,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 664 events. 54/664 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3077 event pairs, 0 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 332. Up to 8 conditions per place. [2022-11-02 20:22:25,002 INFO L82 GeneralOperation]: Start removeDead. Operand has 352 places, 372 transitions, 766 flow [2022-11-02 20:22:25,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 352 places, 372 transitions, 766 flow [2022-11-02 20:22:25,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:22:25,030 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;@4d28b703, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:22:25,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2022-11-02 20:22:25,048 INFO L130 PetriNetUnfolder]: 6/115 cut-off events. [2022-11-02 20:22:25,048 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:22:25,048 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:22:25,050 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:25,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-02 20:22:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1367127652, now seen corresponding path program 1 times [2022-11-02 20:22:25,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:25,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194406025] [2022-11-02 20:22:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:25,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:25,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:25,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194406025] [2022-11-02 20:22:25,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194406025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:25,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:25,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:22:25,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087950908] [2022-11-02 20:22:25,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:25,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:22:25,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:25,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:22:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:22:25,516 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 372 [2022-11-02 20:22:25,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 372 transitions, 766 flow. Second operand has 2 states, 2 states have (on average 348.5) internal successors, (697), 2 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:25,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:22:25,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 372 [2022-11-02 20:22:25,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:22:25,773 INFO L130 PetriNetUnfolder]: 15/623 cut-off events. [2022-11-02 20:22:25,773 INFO L131 PetriNetUnfolder]: For 35/49 co-relation queries the response was YES. [2022-11-02 20:22:25,780 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 623 events. 15/623 cut-off events. For 35/49 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2667 event pairs, 0 based on Foata normal form. 59/624 useless extension candidates. Maximal degree in co-relation 315. Up to 12 conditions per place. [2022-11-02 20:22:25,784 INFO L137 encePairwiseOnDemand]: 355/372 looper letters, 6 selfloop transitions, 0 changer transitions 0/354 dead transitions. [2022-11-02 20:22:25,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 354 transitions, 742 flow [2022-11-02 20:22:25,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:22:25,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:22:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 719 transitions. [2022-11-02 20:22:25,806 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9663978494623656 [2022-11-02 20:22:25,807 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 719 transitions. [2022-11-02 20:22:25,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 719 transitions. [2022-11-02 20:22:25,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:22:25,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 719 transitions. [2022-11-02 20:22:25,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 359.5) internal successors, (719), 2 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:25,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 372.0) internal successors, (1116), 3 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:25,831 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 372.0) internal successors, (1116), 3 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:25,833 INFO L175 Difference]: Start difference. First operand has 352 places, 372 transitions, 766 flow. Second operand 2 states and 719 transitions. [2022-11-02 20:22:25,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 354 transitions, 742 flow [2022-11-02 20:22:25,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 354 transitions, 742 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:22:25,875 INFO L231 Difference]: Finished difference. Result has 352 places, 354 transitions, 730 flow [2022-11-02 20:22:25,878 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=372, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=730, PETRI_PLACES=352, PETRI_TRANSITIONS=354} [2022-11-02 20:22:25,883 INFO L287 CegarLoopForPetriNet]: 352 programPoint places, 0 predicate places. [2022-11-02 20:22:25,883 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 354 transitions, 730 flow [2022-11-02 20:22:25,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 348.5) internal successors, (697), 2 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:25,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:22:25,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:25,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:22:25,886 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-02 20:22:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:25,888 INFO L85 PathProgramCache]: Analyzing trace with hash -440326811, now seen corresponding path program 1 times [2022-11-02 20:22:25,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:25,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940726930] [2022-11-02 20:22:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:25,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:26,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:26,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940726930] [2022-11-02 20:22:26,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940726930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:26,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:26,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:22:26,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882339313] [2022-11-02 20:22:26,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:26,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:22:26,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:26,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:22:26,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:22:26,084 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 372 [2022-11-02 20:22:26,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 354 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:26,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:22:26,086 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 372 [2022-11-02 20:22:26,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:22:26,318 INFO L130 PetriNetUnfolder]: 15/662 cut-off events. [2022-11-02 20:22:26,318 INFO L131 PetriNetUnfolder]: For 35/49 co-relation queries the response was YES. [2022-11-02 20:22:26,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 662 events. 15/662 cut-off events. For 35/49 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2646 event pairs, 0 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 715. Up to 26 conditions per place. [2022-11-02 20:22:26,329 INFO L137 encePairwiseOnDemand]: 369/372 looper letters, 29 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2022-11-02 20:22:26,330 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 365 transitions, 814 flow [2022-11-02 20:22:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:22:26,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:22:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2022-11-02 20:22:26,334 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9265232974910395 [2022-11-02 20:22:26,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1034 transitions. [2022-11-02 20:22:26,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1034 transitions. [2022-11-02 20:22:26,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:22:26,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1034 transitions. [2022-11-02 20:22:26,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:26,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:26,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 372.0) internal successors, (1488), 4 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:26,344 INFO L175 Difference]: Start difference. First operand has 352 places, 354 transitions, 730 flow. Second operand 3 states and 1034 transitions. [2022-11-02 20:22:26,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 365 transitions, 814 flow [2022-11-02 20:22:26,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 365 transitions, 814 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:22:26,376 INFO L231 Difference]: Finished difference. Result has 355 places, 355 transitions, 742 flow [2022-11-02 20:22:26,377 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=372, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=742, PETRI_PLACES=355, PETRI_TRANSITIONS=355} [2022-11-02 20:22:26,378 INFO L287 CegarLoopForPetriNet]: 352 programPoint places, 3 predicate places. [2022-11-02 20:22:26,379 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 355 transitions, 742 flow [2022-11-02 20:22:26,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.0) internal successors, (1005), 3 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:26,380 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:22:26,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:26,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:22:26,381 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-02 20:22:26,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:26,382 INFO L85 PathProgramCache]: Analyzing trace with hash 8954508, now seen corresponding path program 1 times [2022-11-02 20:22:26,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:26,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946805054] [2022-11-02 20:22:26,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:26,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:27,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:27,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:27,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946805054] [2022-11-02 20:22:27,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946805054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:27,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:27,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:22:27,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643993211] [2022-11-02 20:22:27,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:27,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:22:27,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:27,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:22:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:22:27,099 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 372 [2022-11-02 20:22:27,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 355 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:27,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:22:27,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 372 [2022-11-02 20:22:27,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:22:48,201 INFO L130 PetriNetUnfolder]: 46791/104780 cut-off events. [2022-11-02 20:22:48,201 INFO L131 PetriNetUnfolder]: For 598/600 co-relation queries the response was YES. [2022-11-02 20:22:48,548 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175957 conditions, 104780 events. 46791/104780 cut-off events. For 598/600 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 1155434 event pairs, 45420 based on Foata normal form. 0/90976 useless extension candidates. Maximal degree in co-relation 175950. Up to 70889 conditions per place. [2022-11-02 20:22:49,287 INFO L137 encePairwiseOnDemand]: 366/372 looper letters, 120 selfloop transitions, 5 changer transitions 0/354 dead transitions. [2022-11-02 20:22:49,287 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 354 transitions, 990 flow [2022-11-02 20:22:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:22:49,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:22:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1494 transitions. [2022-11-02 20:22:49,294 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6693548387096774 [2022-11-02 20:22:49,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1494 transitions. [2022-11-02 20:22:49,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1494 transitions. [2022-11-02 20:22:49,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:22:49,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1494 transitions. [2022-11-02 20:22:49,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 249.0) internal successors, (1494), 6 states have internal predecessors, (1494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:49,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 372.0) internal successors, (2604), 7 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:49,310 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 372.0) internal successors, (2604), 7 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:49,310 INFO L175 Difference]: Start difference. First operand has 355 places, 355 transitions, 742 flow. Second operand 6 states and 1494 transitions. [2022-11-02 20:22:49,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 354 transitions, 990 flow [2022-11-02 20:22:49,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 354 transitions, 988 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:22:49,331 INFO L231 Difference]: Finished difference. Result has 358 places, 354 transitions, 748 flow [2022-11-02 20:22:49,333 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=372, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=748, PETRI_PLACES=358, PETRI_TRANSITIONS=354} [2022-11-02 20:22:49,335 INFO L287 CegarLoopForPetriNet]: 352 programPoint places, 6 predicate places. [2022-11-02 20:22:49,335 INFO L495 AbstractCegarLoop]: Abstraction has has 358 places, 354 transitions, 748 flow [2022-11-02 20:22:49,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 229.5) internal successors, (1377), 6 states have internal predecessors, (1377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:49,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:22:49,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:22:49,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:22:49,337 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 31 more)] === [2022-11-02 20:22:49,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:22:49,339 INFO L85 PathProgramCache]: Analyzing trace with hash -132612616, now seen corresponding path program 1 times [2022-11-02 20:22:49,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:22:49,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589990693] [2022-11-02 20:22:49,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:22:49,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:22:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:22:49,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:22:49,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:22:49,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589990693] [2022-11-02 20:22:49,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589990693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:22:49,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:22:49,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:22:49,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543340120] [2022-11-02 20:22:49,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:22:49,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:22:49,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:22:49,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:22:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:22:49,945 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 372 [2022-11-02 20:22:49,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 354 transitions, 748 flow. Second operand has 6 states, 6 states have (on average 230.5) internal successors, (1383), 6 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:22:49,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:22:49,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 372 [2022-11-02 20:22:49,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand