./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:21:19,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:21:19,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:21:19,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:21:19,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:21:19,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:21:19,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:21:19,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:21:19,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:21:19,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:21:19,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:21:19,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:21:19,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:21:19,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:21:19,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:21:19,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:21:19,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:21:19,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:21:19,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:21:19,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:21:19,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:21:19,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:21:19,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:21:19,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:21:19,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:21:19,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:21:19,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:21:19,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:21:19,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:21:19,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:21:19,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:21:19,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:21:19,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:21:19,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:21:19,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:21:19,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:21:19,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:21:19,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:21:19,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:21:19,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:21:19,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:21:19,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:21:19,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:21:19,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:21:19,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:21:19,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:21:19,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:21:19,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:21:19,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:21:19,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:21:19,296 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:21:19,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:21:19,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:21:19,297 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:21:19,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:21:19,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:21:19,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:21:19,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:21:19,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:21:19,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:21:19,299 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:21:19,299 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:21:19,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:21:19,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:21:19,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:21:19,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:21:19,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:21:19,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:21:19,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:21:19,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:21:19,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:21:19,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:21:19,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:21:19,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:21:19,302 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:21:19,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:21:19,302 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:21:19,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:21:19,303 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 [2022-11-25 17:21:19,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:21:19,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:21:19,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:21:19,582 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:21:19,585 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:21:19,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2022-11-25 17:21:22,544 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:21:22,913 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:21:22,913 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2022-11-25 17:21:22,927 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/data/9e77c2945/a481fcf3c9804ae0b830cd9dcf5e9137/FLAG5a3027e24 [2022-11-25 17:21:22,941 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/data/9e77c2945/a481fcf3c9804ae0b830cd9dcf5e9137 [2022-11-25 17:21:22,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:21:22,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:21:22,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:21:22,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:21:22,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:21:22,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:21:22" (1/1) ... [2022-11-25 17:21:22,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ac4ae4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:22, skipping insertion in model container [2022-11-25 17:21:22,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:21:22" (1/1) ... [2022-11-25 17:21:22,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:21:22,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:21:23,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:21:23,532 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:21:23,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:21:23,666 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:21:23,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23 WrapperNode [2022-11-25 17:21:23,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:21:23,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:21:23,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:21:23,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:21:23,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,736 INFO L138 Inliner]: procedures = 266, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-11-25 17:21:23,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:21:23,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:21:23,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:21:23,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:21:23,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,775 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:21:23,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:21:23,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:21:23,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:21:23,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (1/1) ... [2022-11-25 17:21:23,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:21:23,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:21:23,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:21:23,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:21:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:21:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:21:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:21:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:21:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:21:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:21:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:21:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:21:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:21:23,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:21:23,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:21:24,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:21:24,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:21:24,265 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:21:24,272 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:21:24,272 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:21:24,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:21:24 BoogieIcfgContainer [2022-11-25 17:21:24,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:21:24,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:21:24,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:21:24,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:21:24,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:21:22" (1/3) ... [2022-11-25 17:21:24,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea43054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:21:24, skipping insertion in model container [2022-11-25 17:21:24,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:21:23" (2/3) ... [2022-11-25 17:21:24,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea43054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:21:24, skipping insertion in model container [2022-11-25 17:21:24,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:21:24" (3/3) ... [2022-11-25 17:21:24,283 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2022-11-25 17:21:24,292 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:21:24,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:21:24,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 17:21:24,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:21:24,346 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:21:24,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 79 transitions, 163 flow [2022-11-25 17:21:24,425 INFO L130 PetriNetUnfolder]: 3/78 cut-off events. [2022-11-25 17:21:24,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:24,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 3/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-25 17:21:24,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 79 transitions, 163 flow [2022-11-25 17:21:24,434 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 78 transitions, 159 flow [2022-11-25 17:21:24,438 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:21:24,460 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 78 transitions, 159 flow [2022-11-25 17:21:24,475 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 78 transitions, 159 flow [2022-11-25 17:21:24,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 159 flow [2022-11-25 17:21:24,501 INFO L130 PetriNetUnfolder]: 3/78 cut-off events. [2022-11-25 17:21:24,501 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:24,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 3/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-11-25 17:21:24,504 INFO L119 LiptonReduction]: Number of co-enabled transitions 1258 [2022-11-25 17:21:27,068 INFO L134 LiptonReduction]: Checked pairs total: 3579 [2022-11-25 17:21:27,068 INFO L136 LiptonReduction]: Total number of compositions: 67 [2022-11-25 17:21:27,084 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:21:27,090 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;@79ba899a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:21:27,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-25 17:21:27,094 INFO L130 PetriNetUnfolder]: 0/7 cut-off events. [2022-11-25 17:21:27,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:27,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:27,095 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:21:27,096 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 17:21:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash 269940548, now seen corresponding path program 1 times [2022-11-25 17:21:27,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:27,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278488710] [2022-11-25 17:21:27,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:27,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:27,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:27,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278488710] [2022-11-25 17:21:27,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278488710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:21:27,319 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:21:27,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:21:27,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269341303] [2022-11-25 17:21:27,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:21:27,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:21:27,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:21:27,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:21:27,387 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 146 [2022-11-25 17:21:27,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 23 transitions, 49 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:21:27,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 146 [2022-11-25 17:21:27,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:21:27,472 INFO L130 PetriNetUnfolder]: 63/173 cut-off events. [2022-11-25 17:21:27,472 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:21:27,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 173 events. 63/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 719 event pairs, 24 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 310. Up to 82 conditions per place. [2022-11-25 17:21:27,475 INFO L137 encePairwiseOnDemand]: 138/146 looper letters, 26 selfloop transitions, 6 changer transitions 0/37 dead transitions. [2022-11-25 17:21:27,475 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 37 transitions, 141 flow [2022-11-25 17:21:27,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:21:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:21:27,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2022-11-25 17:21:27,490 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5570776255707762 [2022-11-25 17:21:27,490 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2022-11-25 17:21:27,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2022-11-25 17:21:27,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:21:27,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2022-11-25 17:21:27,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,505 INFO L175 Difference]: Start difference. First operand has 26 places, 23 transitions, 49 flow. Second operand 3 states and 244 transitions. [2022-11-25 17:21:27,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 37 transitions, 141 flow [2022-11-25 17:21:27,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 37 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:21:27,510 INFO L231 Difference]: Finished difference. Result has 29 places, 29 transitions, 100 flow [2022-11-25 17:21:27,512 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=29, PETRI_TRANSITIONS=29} [2022-11-25 17:21:27,516 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2022-11-25 17:21:27,516 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 29 transitions, 100 flow [2022-11-25 17:21:27,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:27,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:21:27,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:21:27,518 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 17:21:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:27,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2126794493, now seen corresponding path program 1 times [2022-11-25 17:21:27,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:27,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2954919] [2022-11-25 17:21:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:27,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:27,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:27,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2954919] [2022-11-25 17:21:27,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2954919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:21:27,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:21:27,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:21:27,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819015843] [2022-11-25 17:21:27,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:21:27,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:21:27,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:27,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:21:27,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:21:27,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 146 [2022-11-25 17:21:27,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 29 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:21:27,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 146 [2022-11-25 17:21:27,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:21:27,699 INFO L130 PetriNetUnfolder]: 54/163 cut-off events. [2022-11-25 17:21:27,699 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-25 17:21:27,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 163 events. 54/163 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 669 event pairs, 28 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 364. Up to 105 conditions per place. [2022-11-25 17:21:27,702 INFO L137 encePairwiseOnDemand]: 141/146 looper letters, 18 selfloop transitions, 6 changer transitions 2/36 dead transitions. [2022-11-25 17:21:27,702 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 176 flow [2022-11-25 17:21:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:21:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:21:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2022-11-25 17:21:27,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5228310502283106 [2022-11-25 17:21:27,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2022-11-25 17:21:27,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2022-11-25 17:21:27,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:21:27,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2022-11-25 17:21:27,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,714 INFO L175 Difference]: Start difference. First operand has 29 places, 29 transitions, 100 flow. Second operand 3 states and 229 transitions. [2022-11-25 17:21:27,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 176 flow [2022-11-25 17:21:27,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:21:27,717 INFO L231 Difference]: Finished difference. Result has 30 places, 33 transitions, 130 flow [2022-11-25 17:21:27,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=30, PETRI_TRANSITIONS=33} [2022-11-25 17:21:27,718 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2022-11-25 17:21:27,719 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 33 transitions, 130 flow [2022-11-25 17:21:27,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,719 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:27,719 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:21:27,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:21:27,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 17:21:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:27,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1310556116, now seen corresponding path program 1 times [2022-11-25 17:21:27,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:27,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265806406] [2022-11-25 17:21:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:27,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:21:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:21:27,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:21:27,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265806406] [2022-11-25 17:21:27,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265806406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:21:27,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:21:27,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:21:27,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239587298] [2022-11-25 17:21:27,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:21:27,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:21:27,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:21:27,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:21:27,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:21:27,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 146 [2022-11-25 17:21:27,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 33 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:21:27,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 146 [2022-11-25 17:21:27,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:21:27,957 INFO L130 PetriNetUnfolder]: 64/182 cut-off events. [2022-11-25 17:21:27,957 INFO L131 PetriNetUnfolder]: For 113/123 co-relation queries the response was YES. [2022-11-25 17:21:27,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 448 conditions, 182 events. 64/182 cut-off events. For 113/123 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 746 event pairs, 19 based on Foata normal form. 2/172 useless extension candidates. Maximal degree in co-relation 437. Up to 95 conditions per place. [2022-11-25 17:21:27,963 INFO L137 encePairwiseOnDemand]: 140/146 looper letters, 17 selfloop transitions, 7 changer transitions 10/44 dead transitions. [2022-11-25 17:21:27,965 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 237 flow [2022-11-25 17:21:27,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:21:27,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:21:27,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2022-11-25 17:21:27,971 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5365296803652968 [2022-11-25 17:21:27,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2022-11-25 17:21:27,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2022-11-25 17:21:27,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:21:27,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2022-11-25 17:21:27,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,977 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,978 INFO L175 Difference]: Start difference. First operand has 30 places, 33 transitions, 130 flow. Second operand 3 states and 235 transitions. [2022-11-25 17:21:27,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 237 flow [2022-11-25 17:21:27,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 44 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:21:27,984 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 158 flow [2022-11-25 17:21:27,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=146, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2022-11-25 17:21:27,986 INFO L288 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2022-11-25 17:21:27,986 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 158 flow [2022-11-25 17:21:27,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:21:27,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:21:27,987 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:21:27,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:21:27,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-25 17:21:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:21:27,989 INFO L85 PathProgramCache]: Analyzing trace with hash -2027001135, now seen corresponding path program 1 times [2022-11-25 17:21:27,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:21:27,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513970788] [2022-11-25 17:21:27,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:21:27,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:21:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:21:28,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:21:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:21:28,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:21:28,097 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:21:28,098 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-25 17:21:28,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-25 17:21:28,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2022-11-25 17:21:28,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2022-11-25 17:21:28,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-25 17:21:28,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-25 17:21:28,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-25 17:21:28,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:21:28,105 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 17:21:28,114 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:21:28,115 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:21:28,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:21:28 BasicIcfg [2022-11-25 17:21:28,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:21:28,163 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:21:28,163 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:21:28,163 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:21:28,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:21:24" (3/4) ... [2022-11-25 17:21:28,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:21:28,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:21:28,168 INFO L158 Benchmark]: Toolchain (without parser) took 5222.83ms. Allocated memory was 161.5MB in the beginning and 197.1MB in the end (delta: 35.7MB). Free memory was 127.6MB in the beginning and 131.1MB in the end (delta: -3.6MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-11-25 17:21:28,168 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory was 75.8MB in the beginning and 75.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:21:28,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 721.89ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 99.7MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:21:28,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.60ms. Allocated memory is still 161.5MB. Free memory was 99.7MB in the beginning and 97.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:28,169 INFO L158 Benchmark]: Boogie Preprocessor took 55.42ms. Allocated memory is still 161.5MB. Free memory was 97.3MB in the beginning and 96.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:21:28,170 INFO L158 Benchmark]: RCFGBuilder took 481.55ms. Allocated memory is still 161.5MB. Free memory was 95.5MB in the beginning and 82.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:21:28,171 INFO L158 Benchmark]: TraceAbstraction took 3885.25ms. Allocated memory was 161.5MB in the beginning and 197.1MB in the end (delta: 35.7MB). Free memory was 82.3MB in the beginning and 131.1MB in the end (delta: -48.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:21:28,171 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 197.1MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:21:28,173 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory was 75.8MB in the beginning and 75.7MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 721.89ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 99.7MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.60ms. Allocated memory is still 161.5MB. Free memory was 99.7MB in the beginning and 97.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.42ms. Allocated memory is still 161.5MB. Free memory was 97.3MB in the beginning and 96.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 481.55ms. Allocated memory is still 161.5MB. Free memory was 95.5MB in the beginning and 82.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3885.25ms. Allocated memory was 161.5MB in the beginning and 197.1MB in the end (delta: 35.7MB). Free memory was 82.3MB in the beginning and 131.1MB in the end (delta: -48.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 197.1MB. Free memory is still 131.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 79 PlacesBefore, 26 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1258 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3579 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1901, independent: 1710, independent conditional: 0, independent unconditional: 1710, dependent: 191, dependent conditional: 0, dependent unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 966, independent: 909, independent conditional: 0, independent unconditional: 909, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 966, independent: 895, independent conditional: 0, independent unconditional: 895, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 71, independent: 14, independent conditional: 0, independent unconditional: 14, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 188, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1901, independent: 801, independent conditional: 0, independent unconditional: 801, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 966, unknown conditional: 0, unknown unconditional: 966] , Statistics on independence cache: Total cache size (in pairs): 143, Positive cache size: 117, Positive conditional cache size: 0, Positive unconditional cache size: 117, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 932]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L937] 0 int i = __VERIFIER_nondet_int(); [L938] 0 pthread_t id; [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=0, id={2:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] COND FALSE 0 !(\read(i)) [L944] 0 i++ VAL [arg={0:0}, glob=0, i=1, i++=0, id={2:0}, m={1:0}, pthread_mutex_lock(&m)=25] [L945] COND TRUE 0 \read(i) [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, i=1, id={2:0}, m={1:0}, pthread_mutex_lock(&m)=25, pthread_mutex_lock(&m)=0] [L932] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=26, i=1, id={2:0}, m={1:0}, pthread_mutex_lock(&m)=25] [L932] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [946] and C: glob++ [932] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 154 IncrementalHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 2 mSDtfsCounter, 154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 17:21:28,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25fa8c2d-c9aa-40ee-94c0-5e3f3c7eaa62/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE