./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.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_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/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_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/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_5fd8a1d0-1951-422a-b7f9-65623835bbb3/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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- 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 18:29:35,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:29:35,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:29:35,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:29:35,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:29:35,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:29:35,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:29:35,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:29:35,490 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:29:35,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:29:35,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:29:35,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:29:35,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:29:35,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:29:35,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:29:35,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:29:35,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:29:35,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:29:35,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:29:35,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:29:35,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:29:35,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:29:35,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:29:35,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:29:35,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:29:35,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:29:35,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:29:35,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:29:35,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:29:35,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:29:35,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:29:35,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:29:35,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:29:35,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:29:35,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:29:35,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:29:35,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:29:35,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:29:35,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:29:35,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:29:35,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:29:35,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:29:35,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:29:35,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:29:35,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:29:35,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:29:35,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:29:35,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:29:35,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:29:35,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:29:35,591 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:29:35,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:29:35,593 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:29:35,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:29:35,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:29:35,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:29:35,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:29:35,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:29:35,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:29:35,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:29:35,594 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:29:35,594 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:29:35,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:29:35,595 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:29:35,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:29:35,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:29:35,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:29:35,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:29:35,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:29:35,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:29:35,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:29:35,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:29:35,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:29:35,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:29:35,597 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:29:35,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:29:35,598 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:29:35,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:29:35,598 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_5fd8a1d0-1951-422a-b7f9-65623835bbb3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2022-11-25 18:29:35,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:29:35,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:29:35,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:29:35,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:29:35,920 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:29:35,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/stateful01-1.i [2022-11-25 18:29:38,886 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:29:39,291 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:29:39,292 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/sv-benchmarks/c/pthread/stateful01-1.i [2022-11-25 18:29:39,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/data/278536bf4/e86626221dda4175a925514be1cd0f2d/FLAG1d20ee825 [2022-11-25 18:29:39,319 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/data/278536bf4/e86626221dda4175a925514be1cd0f2d [2022-11-25 18:29:39,321 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:29:39,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:29:39,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:29:39,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:29:39,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:29:39,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8eda64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39, skipping insertion in model container [2022-11-25 18:29:39,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:29:39,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:29:39,817 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_5fd8a1d0-1951-422a-b7f9-65623835bbb3/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2022-11-25 18:29:39,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:29:39,835 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:29:39,890 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_5fd8a1d0-1951-422a-b7f9-65623835bbb3/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2022-11-25 18:29:39,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:29:39,933 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:29:39,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39 WrapperNode [2022-11-25 18:29:39,934 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:29:39,935 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:29:39,935 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:29:39,935 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:29:39,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,978 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2022-11-25 18:29:39,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:29:39,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:29:39,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:29:39,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:29:39,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:39,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:40,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:40,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:40,009 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:40,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:40,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:29:40,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:29:40,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:29:40,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:29:40,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (1/1) ... [2022-11-25 18:29:40,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:29:40,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:29:40,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:29:40,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:29:40,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:29:40,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:29:40,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:29:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:29:40,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:29:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:29:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 18:29:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:29:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:29:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:29:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:29:40,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:29:40,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:29:40,120 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 18:29:40,250 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:29:40,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:29:40,629 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:29:40,636 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:29:40,637 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 18:29:40,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:40 BoogieIcfgContainer [2022-11-25 18:29:40,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:29:40,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:29:40,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:29:40,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:29:40,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:29:39" (1/3) ... [2022-11-25 18:29:40,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bdfe3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:29:40, skipping insertion in model container [2022-11-25 18:29:40,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:39" (2/3) ... [2022-11-25 18:29:40,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43bdfe3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:29:40, skipping insertion in model container [2022-11-25 18:29:40,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:40" (3/3) ... [2022-11-25 18:29:40,648 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-11-25 18:29:40,660 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:29:40,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:29:40,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-11-25 18:29:40,671 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:29:40,816 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 18:29:40,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 158 transitions, 332 flow [2022-11-25 18:29:40,993 INFO L130 PetriNetUnfolder]: 2/156 cut-off events. [2022-11-25 18:29:40,998 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:29:41,002 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 2/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-11-25 18:29:41,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 158 transitions, 332 flow [2022-11-25 18:29:41,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 139 transitions, 290 flow [2022-11-25 18:29:41,016 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:29:41,048 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 139 transitions, 290 flow [2022-11-25 18:29:41,055 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 139 transitions, 290 flow [2022-11-25 18:29:41,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 139 transitions, 290 flow [2022-11-25 18:29:41,143 INFO L130 PetriNetUnfolder]: 0/139 cut-off events. [2022-11-25 18:29:41,143 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 18:29:41,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148 conditions, 139 events. 0/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 128 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-25 18:29:41,148 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2022-11-25 18:29:46,387 INFO L134 LiptonReduction]: Checked pairs total: 18772 [2022-11-25 18:29:46,387 INFO L136 LiptonReduction]: Total number of compositions: 104 [2022-11-25 18:29:46,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:29:46,409 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;@52fcc8be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:29:46,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-25 18:29:46,411 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:29:46,411 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:29:46,411 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:46,412 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:29:46,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:46,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:46,417 INFO L85 PathProgramCache]: Analyzing trace with hash 518, now seen corresponding path program 1 times [2022-11-25 18:29:46,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:46,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143280696] [2022-11-25 18:29:46,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:46,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:46,525 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 18:29:46,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:46,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143280696] [2022-11-25 18:29:46,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143280696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:46,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:46,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:29:46,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564269538] [2022-11-25 18:29:46,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:46,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:29:46,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:46,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:29:46,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:29:46,561 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 262 [2022-11-25 18:29:46,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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 18:29:46,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:46,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 262 [2022-11-25 18:29:46,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:46,700 INFO L130 PetriNetUnfolder]: 213/573 cut-off events. [2022-11-25 18:29:46,700 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-25 18:29:46,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 999 conditions, 573 events. 213/573 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3085 event pairs, 213 based on Foata normal form. 1/519 useless extension candidates. Maximal degree in co-relation 918. Up to 394 conditions per place. [2022-11-25 18:29:46,708 INFO L137 encePairwiseOnDemand]: 256/262 looper letters, 22 selfloop transitions, 0 changer transitions 1/46 dead transitions. [2022-11-25 18:29:46,708 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 150 flow [2022-11-25 18:29:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:29:46,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:29:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 333 transitions. [2022-11-25 18:29:46,722 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6354961832061069 [2022-11-25 18:29:46,723 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 333 transitions. [2022-11-25 18:29:46,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 333 transitions. [2022-11-25 18:29:46,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:46,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 333 transitions. [2022-11-25 18:29:46,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.5) internal successors, (333), 2 states have internal predecessors, (333), 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 18:29:46,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 18:29:46,736 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 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 18:29:46,738 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 116 flow. Second operand 2 states and 333 transitions. [2022-11-25 18:29:46,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 150 flow [2022-11-25 18:29:46,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 142 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-25 18:29:46,744 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 93 flow [2022-11-25 18:29:46,746 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=93, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2022-11-25 18:29:46,750 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -9 predicate places. [2022-11-25 18:29:46,750 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 93 flow [2022-11-25 18:29:46,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 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 18:29:46,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:46,751 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 18:29:46,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:29:46,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:46,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:46,752 INFO L85 PathProgramCache]: Analyzing trace with hash 492109703, now seen corresponding path program 1 times [2022-11-25 18:29:46,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:46,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029342243] [2022-11-25 18:29:46,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:46,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:46,907 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 18:29:46,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:46,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029342243] [2022-11-25 18:29:46,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029342243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:46,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:46,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:29:46,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886968265] [2022-11-25 18:29:46,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:46,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:46,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:46,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:46,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:46,957 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 262 [2022-11-25 18:29:46,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 18:29:46,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:46,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 262 [2022-11-25 18:29:46,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:47,186 INFO L130 PetriNetUnfolder]: 450/1087 cut-off events. [2022-11-25 18:29:47,186 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:29:47,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1909 conditions, 1087 events. 450/1087 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6388 event pairs, 257 based on Foata normal form. 0/989 useless extension candidates. Maximal degree in co-relation 1906. Up to 547 conditions per place. [2022-11-25 18:29:47,193 INFO L137 encePairwiseOnDemand]: 254/262 looper letters, 46 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2022-11-25 18:29:47,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 247 flow [2022-11-25 18:29:47,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:47,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:47,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-11-25 18:29:47,199 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6030534351145038 [2022-11-25 18:29:47,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-11-25 18:29:47,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-11-25 18:29:47,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:47,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-11-25 18:29:47,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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 18:29:47,204 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:47,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:47,205 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 93 flow. Second operand 3 states and 474 transitions. [2022-11-25 18:29:47,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 247 flow [2022-11-25 18:29:47,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 69 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 18:29:47,207 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 145 flow [2022-11-25 18:29:47,207 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2022-11-25 18:29:47,208 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -6 predicate places. [2022-11-25 18:29:47,208 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 145 flow [2022-11-25 18:29:47,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 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 18:29:47,209 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:47,209 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:47,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:29:47,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:47,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:47,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1691652615, now seen corresponding path program 1 times [2022-11-25 18:29:47,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:47,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114135587] [2022-11-25 18:29:47,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:47,273 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 18:29:47,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:47,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114135587] [2022-11-25 18:29:47,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114135587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:47,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:47,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:29:47,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773365405] [2022-11-25 18:29:47,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:47,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:47,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:47,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:47,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 262 [2022-11-25 18:29:47,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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 18:29:47,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:47,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 262 [2022-11-25 18:29:47,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:47,450 INFO L130 PetriNetUnfolder]: 413/1062 cut-off events. [2022-11-25 18:29:47,450 INFO L131 PetriNetUnfolder]: For 230/236 co-relation queries the response was YES. [2022-11-25 18:29:47,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2062 conditions, 1062 events. 413/1062 cut-off events. For 230/236 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6500 event pairs, 276 based on Foata normal form. 0/968 useless extension candidates. Maximal degree in co-relation 2057. Up to 612 conditions per place. [2022-11-25 18:29:47,457 INFO L137 encePairwiseOnDemand]: 256/262 looper letters, 36 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2022-11-25 18:29:47,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 270 flow [2022-11-25 18:29:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:47,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2022-11-25 18:29:47,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5916030534351145 [2022-11-25 18:29:47,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2022-11-25 18:29:47,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2022-11-25 18:29:47,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:47,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2022-11-25 18:29:47,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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 18:29:47,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:47,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:47,465 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 145 flow. Second operand 3 states and 465 transitions. [2022-11-25 18:29:47,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 270 flow [2022-11-25 18:29:47,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:29:47,468 INFO L231 Difference]: Finished difference. Result has 55 places, 56 transitions, 189 flow [2022-11-25 18:29:47,468 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=55, PETRI_TRANSITIONS=56} [2022-11-25 18:29:47,469 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -4 predicate places. [2022-11-25 18:29:47,469 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 56 transitions, 189 flow [2022-11-25 18:29:47,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 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 18:29:47,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:47,470 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:47,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:29:47,470 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:47,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:47,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1216945102, now seen corresponding path program 1 times [2022-11-25 18:29:47,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:47,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113731822] [2022-11-25 18:29:47,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:47,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:47,521 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 18:29:47,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:47,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113731822] [2022-11-25 18:29:47,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113731822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:47,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:47,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:29:47,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218854216] [2022-11-25 18:29:47,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:47,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:47,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:47,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:47,555 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 262 [2022-11-25 18:29:47,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 18:29:47,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:47,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 262 [2022-11-25 18:29:47,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:47,788 INFO L130 PetriNetUnfolder]: 446/1119 cut-off events. [2022-11-25 18:29:47,788 INFO L131 PetriNetUnfolder]: For 510/530 co-relation queries the response was YES. [2022-11-25 18:29:47,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2399 conditions, 1119 events. 446/1119 cut-off events. For 510/530 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6845 event pairs, 308 based on Foata normal form. 6/1021 useless extension candidates. Maximal degree in co-relation 2393. Up to 716 conditions per place. [2022-11-25 18:29:47,799 INFO L137 encePairwiseOnDemand]: 257/262 looper letters, 41 selfloop transitions, 8 changer transitions 0/71 dead transitions. [2022-11-25 18:29:47,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 71 transitions, 342 flow [2022-11-25 18:29:47,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:47,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:47,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2022-11-25 18:29:47,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5916030534351145 [2022-11-25 18:29:47,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2022-11-25 18:29:47,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2022-11-25 18:29:47,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:47,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2022-11-25 18:29:47,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 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 18:29:47,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:47,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:47,811 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 189 flow. Second operand 3 states and 465 transitions. [2022-11-25 18:29:47,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 71 transitions, 342 flow [2022-11-25 18:29:47,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 71 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:29:47,819 INFO L231 Difference]: Finished difference. Result has 56 places, 60 transitions, 227 flow [2022-11-25 18:29:47,819 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=56, PETRI_TRANSITIONS=60} [2022-11-25 18:29:47,821 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -3 predicate places. [2022-11-25 18:29:47,821 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 60 transitions, 227 flow [2022-11-25 18:29:47,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 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 18:29:47,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:47,823 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:47,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:29:47,823 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:47,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:47,824 INFO L85 PathProgramCache]: Analyzing trace with hash -512308548, now seen corresponding path program 1 times [2022-11-25 18:29:47,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:47,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743762000] [2022-11-25 18:29:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:47,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:47,980 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 18:29:47,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:47,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743762000] [2022-11-25 18:29:47,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743762000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:47,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:47,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 18:29:47,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288999218] [2022-11-25 18:29:47,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:47,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:47,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:47,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:47,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:48,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 262 [2022-11-25 18:29:48,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 60 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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 18:29:48,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:48,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 262 [2022-11-25 18:29:48,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:48,106 INFO L130 PetriNetUnfolder]: 84/355 cut-off events. [2022-11-25 18:29:48,106 INFO L131 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2022-11-25 18:29:48,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 355 events. 84/355 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1557 event pairs, 24 based on Foata normal form. 48/379 useless extension candidates. Maximal degree in co-relation 704. Up to 156 conditions per place. [2022-11-25 18:29:48,109 INFO L137 encePairwiseOnDemand]: 254/262 looper letters, 20 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2022-11-25 18:29:48,109 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 185 flow [2022-11-25 18:29:48,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2022-11-25 18:29:48,111 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5788804071246819 [2022-11-25 18:29:48,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2022-11-25 18:29:48,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2022-11-25 18:29:48,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:48,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2022-11-25 18:29:48,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:29:48,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,116 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,116 INFO L175 Difference]: Start difference. First operand has 56 places, 60 transitions, 227 flow. Second operand 3 states and 455 transitions. [2022-11-25 18:29:48,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 185 flow [2022-11-25 18:29:48,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 46 transitions, 153 flow, removed 7 selfloop flow, removed 7 redundant places. [2022-11-25 18:29:48,119 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 101 flow [2022-11-25 18:29:48,119 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2022-11-25 18:29:48,120 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -12 predicate places. [2022-11-25 18:29:48,120 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 101 flow [2022-11-25 18:29:48,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 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 18:29:48,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:48,121 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:48,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:29:48,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:48,122 INFO L85 PathProgramCache]: Analyzing trace with hash -379057335, now seen corresponding path program 1 times [2022-11-25 18:29:48,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:48,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012853207] [2022-11-25 18:29:48,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:48,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:48,158 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 18:29:48,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:48,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012853207] [2022-11-25 18:29:48,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012853207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:48,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:48,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:29:48,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303329189] [2022-11-25 18:29:48,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:48,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:48,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:48,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:48,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:48,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 262 [2022-11-25 18:29:48,185 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 18:29:48,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:48,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 262 [2022-11-25 18:29:48,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:48,276 INFO L130 PetriNetUnfolder]: 105/344 cut-off events. [2022-11-25 18:29:48,276 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-11-25 18:29:48,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 344 events. 105/344 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1350 event pairs, 80 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 684. Up to 202 conditions per place. [2022-11-25 18:29:48,278 INFO L137 encePairwiseOnDemand]: 256/262 looper letters, 28 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2022-11-25 18:29:48,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 173 flow [2022-11-25 18:29:48,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 454 transitions. [2022-11-25 18:29:48,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5776081424936387 [2022-11-25 18:29:48,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 454 transitions. [2022-11-25 18:29:48,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 454 transitions. [2022-11-25 18:29:48,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:48,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 454 transitions. [2022-11-25 18:29:48,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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 18:29:48,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,285 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 101 flow. Second operand 3 states and 454 transitions. [2022-11-25 18:29:48,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 173 flow [2022-11-25 18:29:48,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 165 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 18:29:48,287 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 97 flow [2022-11-25 18:29:48,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2022-11-25 18:29:48,287 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -13 predicate places. [2022-11-25 18:29:48,288 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 97 flow [2022-11-25 18:29:48,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 18:29:48,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:48,288 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:48,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:29:48,289 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:48,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:48,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1267334040, now seen corresponding path program 1 times [2022-11-25 18:29:48,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:48,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057029697] [2022-11-25 18:29:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:48,325 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 18:29:48,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:48,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057029697] [2022-11-25 18:29:48,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057029697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:48,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:48,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:29:48,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20466787] [2022-11-25 18:29:48,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:48,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:48,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:48,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:48,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:48,358 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 262 [2022-11-25 18:29:48,359 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 18:29:48,359 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:48,359 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 262 [2022-11-25 18:29:48,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:48,445 INFO L130 PetriNetUnfolder]: 100/333 cut-off events. [2022-11-25 18:29:48,446 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-11-25 18:29:48,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 664 conditions, 333 events. 100/333 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1290 event pairs, 90 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 659. Up to 228 conditions per place. [2022-11-25 18:29:48,447 INFO L137 encePairwiseOnDemand]: 259/262 looper letters, 21 selfloop transitions, 2 changer transitions 6/41 dead transitions. [2022-11-25 18:29:48,447 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 160 flow [2022-11-25 18:29:48,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:48,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:48,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2022-11-25 18:29:48,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5801526717557252 [2022-11-25 18:29:48,449 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2022-11-25 18:29:48,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2022-11-25 18:29:48,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:48,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2022-11-25 18:29:48,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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 18:29:48,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,454 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 97 flow. Second operand 3 states and 456 transitions. [2022-11-25 18:29:48,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 160 flow [2022-11-25 18:29:48,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:29:48,455 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 81 flow [2022-11-25 18:29:48,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2022-11-25 18:29:48,456 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -14 predicate places. [2022-11-25 18:29:48,457 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 81 flow [2022-11-25 18:29:48,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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 18:29:48,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:29:48,457 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:48,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:29:48,458 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-11-25 18:29:48,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:29:48,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1793163873, now seen corresponding path program 1 times [2022-11-25 18:29:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:29:48,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072837794] [2022-11-25 18:29:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:29:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:29:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:29:48,508 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 18:29:48,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:29:48,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072837794] [2022-11-25 18:29:48,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072837794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:29:48,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:29:48,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:29:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108947752] [2022-11-25 18:29:48,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:29:48,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:29:48,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:29:48,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:29:48,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:29:48,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 262 [2022-11-25 18:29:48,537 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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 18:29:48,537 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:29:48,538 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 262 [2022-11-25 18:29:48,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:29:48,600 INFO L130 PetriNetUnfolder]: 55/216 cut-off events. [2022-11-25 18:29:48,600 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-25 18:29:48,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 216 events. 55/216 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 756 event pairs, 50 based on Foata normal form. 8/222 useless extension candidates. Maximal degree in co-relation 397. Up to 136 conditions per place. [2022-11-25 18:29:48,601 INFO L137 encePairwiseOnDemand]: 260/262 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2022-11-25 18:29:48,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 134 flow [2022-11-25 18:29:48,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:29:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:29:48,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2022-11-25 18:29:48,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573791348600509 [2022-11-25 18:29:48,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2022-11-25 18:29:48,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2022-11-25 18:29:48,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:29:48,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2022-11-25 18:29:48,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 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 18:29:48,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 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 18:29:48,608 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 81 flow. Second operand 3 states and 451 transitions. [2022-11-25 18:29:48,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 134 flow [2022-11-25 18:29:48,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 130 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 18:29:48,610 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2022-11-25 18:29:48,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=262, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2022-11-25 18:29:48,610 INFO L288 CegarLoopForPetriNet]: 59 programPoint places, -19 predicate places. [2022-11-25 18:29:48,611 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2022-11-25 18:29:48,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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 18:29:48,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-11-25 18:29:48,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-11-25 18:29:48,614 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-11-25 18:29:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-11-25 18:29:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-11-25 18:29:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-11-25 18:29:48,615 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-11-25 18:29:48,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-11-25 18:29:48,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-11-25 18:29:48,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-11-25 18:29:48,616 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-11-25 18:29:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-11-25 18:29:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-11-25 18:29:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-11-25 18:29:48,617 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2022-11-25 18:29:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2022-11-25 18:29:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-11-25 18:29:48,618 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-11-25 18:29:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-11-25 18:29:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-11-25 18:29:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-11-25 18:29:48,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-11-25 18:29:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-11-25 18:29:48,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-11-25 18:29:48,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:29:48,621 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:29:48,626 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 18:29:48,626 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 18:29:48,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:29:48 BasicIcfg [2022-11-25 18:29:48,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 18:29:48,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 18:29:48,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 18:29:48,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 18:29:48,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:40" (3/4) ... [2022-11-25 18:29:48,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 18:29:48,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 18:29:48,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 18:29:48,645 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-25 18:29:48,646 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 18:29:48,646 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 18:29:48,646 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 18:29:48,681 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 18:29:48,681 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 18:29:48,682 INFO L158 Benchmark]: Toolchain (without parser) took 9359.21ms. Allocated memory was 169.9MB in the beginning and 260.0MB in the end (delta: 90.2MB). Free memory was 137.6MB in the beginning and 206.4MB in the end (delta: -68.7MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-11-25 18:29:48,682 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 169.9MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:29:48,682 INFO L158 Benchmark]: CACSL2BoogieTranslator took 609.91ms. Allocated memory is still 169.9MB. Free memory was 137.1MB in the beginning and 117.3MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 18:29:48,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.35ms. Allocated memory is still 169.9MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:48,683 INFO L158 Benchmark]: Boogie Preprocessor took 33.53ms. Allocated memory is still 169.9MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 18:29:48,684 INFO L158 Benchmark]: RCFGBuilder took 625.18ms. Allocated memory is still 169.9MB. Free memory was 113.6MB in the beginning and 95.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 18:29:48,684 INFO L158 Benchmark]: TraceAbstraction took 7989.33ms. Allocated memory was 169.9MB in the beginning and 260.0MB in the end (delta: 90.2MB). Free memory was 95.2MB in the beginning and 209.5MB in the end (delta: -114.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 18:29:48,684 INFO L158 Benchmark]: Witness Printer took 50.44ms. Allocated memory is still 260.0MB. Free memory was 209.5MB in the beginning and 206.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 18:29:48,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 169.9MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 609.91ms. Allocated memory is still 169.9MB. Free memory was 137.1MB in the beginning and 117.3MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.35ms. Allocated memory is still 169.9MB. Free memory was 117.3MB in the beginning and 115.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.53ms. Allocated memory is still 169.9MB. Free memory was 115.2MB in the beginning and 113.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 625.18ms. Allocated memory is still 169.9MB. Free memory was 113.6MB in the beginning and 95.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7989.33ms. Allocated memory was 169.9MB in the beginning and 260.0MB in the end (delta: 90.2MB). Free memory was 95.2MB in the beginning and 209.5MB in the end (delta: -114.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.44ms. Allocated memory is still 260.0MB. Free memory was 209.5MB in the beginning and 206.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 146 PlacesBefore, 59 PlacesAfterwards, 139 TransitionsBefore, 52 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 8 FixpointIterations, 61 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 104 TotalNumberOfCompositions, 18772 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7775, independent: 7150, independent conditional: 0, independent unconditional: 7150, dependent: 625, dependent conditional: 0, dependent unconditional: 625, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2464, independent: 2383, independent conditional: 0, independent unconditional: 2383, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2464, independent: 2359, independent conditional: 0, independent unconditional: 2359, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 127, dependent conditional: 0, dependent unconditional: 127, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7775, independent: 4767, independent conditional: 0, independent unconditional: 4767, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 2464, unknown conditional: 0, unknown unconditional: 2464] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 556, Positive conditional cache size: 0, Positive unconditional cache size: 556, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 24 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: 7.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 318 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 555 IncrementalHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 45 mSDtfsCounter, 555 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=227occurred in iteration=4, InterpolantAutomatonStates: 23, 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, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 18:29:48,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5fd8a1d0-1951-422a-b7f9-65623835bbb3/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE