./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:41:25,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:41:25,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:41:25,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:41:25,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:41:25,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:41:25,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:41:25,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:41:25,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:41:25,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:41:25,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:41:25,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:41:25,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:41:25,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:41:25,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:41:25,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:41:25,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:41:25,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:41:25,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:41:25,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:41:25,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:41:25,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:41:25,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:41:25,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:41:25,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:41:25,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:41:25,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:41:25,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:41:25,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:41:25,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:41:25,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:41:25,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:41:25,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:41:25,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:41:25,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:41:25,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:41:25,943 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:41:25,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:41:25,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:41:25,945 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:41:25,946 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:41:25,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:41:25,996 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:41:26,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:41:26,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:41:26,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:41:26,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:41:26,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:41:26,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:41:26,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:41:26,005 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:41:26,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:41:26,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:41:26,007 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:41:26,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:41:26,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:41:26,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:41:26,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:41:26,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:41:26,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:41:26,009 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:41:26,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:41:26,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:41:26,009 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:41:26,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:41:26,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:41:26,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:41:26,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:41:26,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:41:26,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:41:26,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:41:26,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:41:26,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:41:26,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:41:26,013 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:41:26,013 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:41:26,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:41:26,014 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_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f70125267ee7251a74a40ef1ba0ea3ced14d0fe45e7a9ea5a666e1eecab0c01c [2022-11-20 11:41:26,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:41:26,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:41:26,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:41:26,375 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:41:26,376 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:41:26,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-11-20 11:41:29,573 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:41:29,889 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:41:29,890 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i [2022-11-20 11:41:29,905 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/data/2afe7fb72/c954aa46b91e490ea2472f5750cd8b79/FLAG877b8d0b7 [2022-11-20 11:41:29,921 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/data/2afe7fb72/c954aa46b91e490ea2472f5750cd8b79 [2022-11-20 11:41:29,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:41:29,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:41:29,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:41:29,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:41:29,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:41:29,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:41:29" (1/1) ... [2022-11-20 11:41:29,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f8770e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:29, skipping insertion in model container [2022-11-20 11:41:29,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:41:29" (1/1) ... [2022-11-20 11:41:29,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:41:29,991 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:41:30,574 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_b292a6a8-4d97-49e0-96d9-24df3260374d/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-11-20 11:41:30,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:41:30,680 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:41:30,724 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_b292a6a8-4d97-49e0-96d9-24df3260374d/sv-benchmarks/c/goblint-regression/28-race_reach_84-list2_racing2.i[47038,47051] [2022-11-20 11:41:30,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:41:30,827 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:41:30,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30 WrapperNode [2022-11-20 11:41:30,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:41:30,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:41:30,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:41:30,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:41:30,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:30,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:30,946 INFO L138 Inliner]: procedures = 279, calls = 88, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 589 [2022-11-20 11:41:30,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:41:30,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:41:30,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:41:30,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:41:30,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:30,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:30,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:30,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:31,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:31,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:31,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:31,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:31,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:41:31,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:41:31,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:41:31,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:41:31,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (1/1) ... [2022-11-20 11:41:31,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:41:31,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:41:31,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:41:31,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b292a6a8-4d97-49e0-96d9-24df3260374d/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:41:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:41:31,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 11:41:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-20 11:41:31,222 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-20 11:41:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:41:31,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:41:31,223 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-20 11:41:31,223 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-20 11:41:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:41:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:41:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:41:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:41:31,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 11:41:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-20 11:41:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-20 11:41:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:41:31,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:41:31,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:41:31,227 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:41:31,418 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:41:31,421 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:41:32,778 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:41:32,806 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:41:32,806 INFO L300 CfgBuilder]: Removed 29 assume(true) statements. [2022-11-20 11:41:32,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:41:32 BoogieIcfgContainer [2022-11-20 11:41:32,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:41:32,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:41:32,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:41:32,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:41:32,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:41:29" (1/3) ... [2022-11-20 11:41:32,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea75668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:41:32, skipping insertion in model container [2022-11-20 11:41:32,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:41:30" (2/3) ... [2022-11-20 11:41:32,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea75668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:41:32, skipping insertion in model container [2022-11-20 11:41:32,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:41:32" (3/3) ... [2022-11-20 11:41:32,828 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2022-11-20 11:41:32,838 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:41:32,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:41:32,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 41 error locations. [2022-11-20 11:41:32,851 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:41:33,037 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-20 11:41:33,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 618 places, 660 transitions, 1362 flow [2022-11-20 11:41:34,431 INFO L130 PetriNetUnfolder]: 189/2316 cut-off events. [2022-11-20 11:41:34,432 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-20 11:41:34,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2377 conditions, 2316 events. 189/2316 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 16893 event pairs, 0 based on Foata normal form. 0/1982 useless extension candidates. Maximal degree in co-relation 1180. Up to 16 conditions per place. [2022-11-20 11:41:34,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 618 places, 660 transitions, 1362 flow [2022-11-20 11:41:34,559 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 618 places, 660 transitions, 1362 flow [2022-11-20 11:41:34,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:41:34,587 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;@47e620f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:41:34,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2022-11-20 11:41:34,594 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-11-20 11:41:34,594 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:41:34,595 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:34,596 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:34,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2022-11-20 11:41:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1990370346, now seen corresponding path program 1 times [2022-11-20 11:41:34,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:34,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748510519] [2022-11-20 11:41:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:34,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:35,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:35,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:35,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748510519] [2022-11-20 11:41:35,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748510519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:35,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:35,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:41:35,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773745722] [2022-11-20 11:41:35,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:35,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:35,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:35,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:35,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 597 out of 660 [2022-11-20 11:41:35,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 660 transitions, 1362 flow. Second operand has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:35,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:35,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 597 of 660 [2022-11-20 11:41:35,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:39,229 INFO L130 PetriNetUnfolder]: 553/9904 cut-off events. [2022-11-20 11:41:39,230 INFO L131 PetriNetUnfolder]: For 562/928 co-relation queries the response was YES. [2022-11-20 11:41:39,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10812 conditions, 9904 events. 553/9904 cut-off events. For 562/928 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 106309 event pairs, 330 based on Foata normal form. 920/9670 useless extension candidates. Maximal degree in co-relation 7992. Up to 683 conditions per place. [2022-11-20 11:41:39,535 INFO L137 encePairwiseOnDemand]: 626/660 looper letters, 27 selfloop transitions, 2 changer transitions 0/626 dead transitions. [2022-11-20 11:41:39,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 626 transitions, 1352 flow [2022-11-20 11:41:39,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:39,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:39,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1852 transitions. [2022-11-20 11:41:39,562 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9353535353535354 [2022-11-20 11:41:39,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1852 transitions. [2022-11-20 11:41:39,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1852 transitions. [2022-11-20 11:41:39,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:39,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1852 transitions. [2022-11-20 11:41:39,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:39,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:39,594 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:39,596 INFO L175 Difference]: Start difference. First operand has 618 places, 660 transitions, 1362 flow. Second operand 3 states and 1852 transitions. [2022-11-20 11:41:39,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 626 transitions, 1352 flow [2022-11-20 11:41:39,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 626 transitions, 1352 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:41:39,625 INFO L231 Difference]: Finished difference. Result has 617 places, 626 transitions, 1298 flow [2022-11-20 11:41:39,629 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=660, PETRI_DIFFERENCE_MINUEND_FLOW=1294, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=624, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1298, PETRI_PLACES=617, PETRI_TRANSITIONS=626} [2022-11-20 11:41:39,635 INFO L288 CegarLoopForPetriNet]: 618 programPoint places, -1 predicate places. [2022-11-20 11:41:39,636 INFO L495 AbstractCegarLoop]: Abstraction has has 617 places, 626 transitions, 1298 flow [2022-11-20 11:41:39,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.3333333333334) internal successors, (1795), 3 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:39,638 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:39,638 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:39,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:41:39,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2022-11-20 11:41:39,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1566030423, now seen corresponding path program 1 times [2022-11-20 11:41:39,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:39,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318816680] [2022-11-20 11:41:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:39,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:39,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:39,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:39,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318816680] [2022-11-20 11:41:39,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318816680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:39,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:39,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:41:39,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352120434] [2022-11-20 11:41:39,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:39,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:41:39,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:39,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:41:39,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:41:39,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 660 [2022-11-20 11:41:39,773 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 617 places, 626 transitions, 1298 flow. Second operand has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 3 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:39,774 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:39,774 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 660 [2022-11-20 11:41:39,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:41:42,848 INFO L130 PetriNetUnfolder]: 360/8274 cut-off events. [2022-11-20 11:41:42,848 INFO L131 PetriNetUnfolder]: For 430/574 co-relation queries the response was YES. [2022-11-20 11:41:42,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8819 conditions, 8274 events. 360/8274 cut-off events. For 430/574 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 82933 event pairs, 146 based on Foata normal form. 0/7456 useless extension candidates. Maximal degree in co-relation 8760. Up to 363 conditions per place. [2022-11-20 11:41:43,016 INFO L137 encePairwiseOnDemand]: 655/660 looper letters, 21 selfloop transitions, 1 changer transitions 0/622 dead transitions. [2022-11-20 11:41:43,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 615 places, 622 transitions, 1334 flow [2022-11-20 11:41:43,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:41:43,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:41:43,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1826 transitions. [2022-11-20 11:41:43,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9222222222222223 [2022-11-20 11:41:43,022 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1826 transitions. [2022-11-20 11:41:43,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1826 transitions. [2022-11-20 11:41:43,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:41:43,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1826 transitions. [2022-11-20 11:41:43,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:43,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:43,036 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 660.0) internal successors, (2640), 4 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:43,037 INFO L175 Difference]: Start difference. First operand has 617 places, 626 transitions, 1298 flow. Second operand 3 states and 1826 transitions. [2022-11-20 11:41:43,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 615 places, 622 transitions, 1334 flow [2022-11-20 11:41:43,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 613 places, 622 transitions, 1330 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:41:43,051 INFO L231 Difference]: Finished difference. Result has 613 places, 622 transitions, 1288 flow [2022-11-20 11:41:43,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=660, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=611, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=613, PETRI_TRANSITIONS=622} [2022-11-20 11:41:43,053 INFO L288 CegarLoopForPetriNet]: 618 programPoint places, -5 predicate places. [2022-11-20 11:41:43,053 INFO L495 AbstractCegarLoop]: Abstraction has has 613 places, 622 transitions, 1288 flow [2022-11-20 11:41:43,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 601.3333333333334) internal successors, (1804), 3 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:43,055 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:41:43,055 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:41:43,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:41:43,056 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2022-11-20 11:41:43,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:41:43,056 INFO L85 PathProgramCache]: Analyzing trace with hash -201828572, now seen corresponding path program 1 times [2022-11-20 11:41:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:41:43,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034934582] [2022-11-20 11:41:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:41:43,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:41:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:41:43,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:41:43,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:41:43,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034934582] [2022-11-20 11:41:43,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034934582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:41:43,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:41:43,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:41:43,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693526627] [2022-11-20 11:41:43,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:41:43,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:41:43,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:41:43,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:41:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:41:43,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 660 [2022-11-20 11:41:43,713 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 622 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 418.5) internal successors, (2511), 6 states have internal predecessors, (2511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:41:43,713 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:41:43,714 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 660 [2022-11-20 11:41:43,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand