./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:49:46,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:49:46,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:49:46,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:49:46,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:49:46,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:49:46,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:49:46,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:49:46,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:49:46,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:49:46,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:49:46,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:49:46,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:49:46,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:49:46,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:49:46,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:49:46,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:49:46,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:49:46,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:49:46,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:49:46,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:49:46,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:49:46,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:49:46,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:49:46,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:49:46,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:49:46,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:49:46,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:49:46,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:49:46,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:49:46,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:49:46,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:49:46,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:49:46,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:49:46,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:49:46,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:49:46,107 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:49:46,107 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:49:46,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:49:46,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:49:46,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:49:46,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 11:49:46,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:49:46,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:49:46,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:49:46,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:49:46,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:49:46,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:49:46,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:49:46,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:49:46,126 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:49:46,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:49:46,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:49:46,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:49:46,128 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 11:49:46,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:49:46,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:49:46,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:49:46,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:49:46,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:49:46,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:49:46,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:49:46,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:49:46,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:49:46,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:49:46,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:49:46,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:49:46,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:49:46,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:49:46,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:49:46,130 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:49:46,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:49:46,131 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:49:46,131 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_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30be2d02c76302b32ef0f3489a863fd4dd7369a786303f9fa3ce3f9985de18bf [2022-12-13 11:49:46,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:49:46,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:49:46,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:49:46,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:49:46,311 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:49:46,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-12-13 11:49:48,875 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:49:49,065 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:49:49,066 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/sv-benchmarks/c/pthread-atomic/szymanski-b.i [2022-12-13 11:49:49,076 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/data/17d40f593/c8dce81572c14ec7900b734fe1ebf9aa/FLAGc53ea67ba [2022-12-13 11:49:49,090 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/data/17d40f593/c8dce81572c14ec7900b734fe1ebf9aa [2022-12-13 11:49:49,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:49:49,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:49:49,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:49:49,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:49:49,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:49:49,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1efc133c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49, skipping insertion in model container [2022-12-13 11:49:49,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:49:49,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:49:49,352 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_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-12-13 11:49:49,355 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_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-12-13 11:49:49,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:49:49,367 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:49:49,393 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_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30088,30101] [2022-12-13 11:49:49,396 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_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/sv-benchmarks/c/pthread-atomic/szymanski-b.i[30375,30388] [2022-12-13 11:49:49,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:49:49,420 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:49:49,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49 WrapperNode [2022-12-13 11:49:49,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:49:49,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:49:49,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:49:49,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:49:49,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,459 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2022-12-13 11:49:49,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:49:49,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:49:49,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:49:49,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:49:49,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:49:49,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:49:49,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:49:49,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:49:49,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (1/1) ... [2022-12-13 11:49:49,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:49:49,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:49:49,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:49:49,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:49:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:49:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-13 11:49:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-13 11:49:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 11:49:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 11:49:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:49:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:49:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:49:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:49:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:49:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:49:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:49:49,536 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 11:49:49,634 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:49:49,636 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:49:49,876 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:49:49,884 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:49:49,885 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 11:49:49,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:49:49 BoogieIcfgContainer [2022-12-13 11:49:49,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:49:49,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:49:49,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:49:49,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:49:49,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:49:49" (1/3) ... [2022-12-13 11:49:49,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165c3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:49:49, skipping insertion in model container [2022-12-13 11:49:49,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:49:49" (2/3) ... [2022-12-13 11:49:49,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3165c3d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:49:49, skipping insertion in model container [2022-12-13 11:49:49,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:49:49" (3/3) ... [2022-12-13 11:49:49,900 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski-b.i [2022-12-13 11:49:49,907 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:49:49,914 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:49:49,915 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-12-13 11:49:49,915 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:49:49,981 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 11:49:50,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 225 transitions, 466 flow [2022-12-13 11:49:50,076 INFO L130 PetriNetUnfolder]: 22/223 cut-off events. [2022-12-13 11:49:50,076 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:49:50,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 223 events. 22/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 504 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-12-13 11:49:50,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 225 transitions, 466 flow [2022-12-13 11:49:50,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 213 transitions, 435 flow [2022-12-13 11:49:50,091 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:49:50,099 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 213 transitions, 435 flow [2022-12-13 11:49:50,101 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 213 transitions, 435 flow [2022-12-13 11:49:50,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 213 transitions, 435 flow [2022-12-13 11:49:50,137 INFO L130 PetriNetUnfolder]: 22/213 cut-off events. [2022-12-13 11:49:50,137 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:49:50,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 213 events. 22/213 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 505 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 187. Up to 3 conditions per place. [2022-12-13 11:49:50,146 INFO L119 LiptonReduction]: Number of co-enabled transitions 19656 [2022-12-13 11:49:51,727 INFO L134 LiptonReduction]: Checked pairs total: 91283 [2022-12-13 11:49:51,727 INFO L136 LiptonReduction]: Total number of compositions: 96 [2022-12-13 11:49:51,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:49:51,742 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;@cad8b33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:49:51,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-12-13 11:49:51,744 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 11:49:51,744 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:49:51,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:49:51,745 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:49:51,745 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-13 11:49:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:49:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 801518993, now seen corresponding path program 1 times [2022-12-13 11:49:51,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:49:51,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308186431] [2022-12-13 11:49:51,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:51,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:49:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:49:51,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:49:51,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308186431] [2022-12-13 11:49:51,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308186431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:49:51,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:49:51,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:49:51,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123266592] [2022-12-13 11:49:51,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:49:51,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:49:51,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:49:51,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:49:51,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:49:51,997 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 321 [2022-12-13 11:49:52,000 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 135 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:49:52,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 321 [2022-12-13 11:49:52,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:49:52,321 INFO L130 PetriNetUnfolder]: 1543/3765 cut-off events. [2022-12-13 11:49:52,321 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 11:49:52,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6079 conditions, 3765 events. 1543/3765 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 26560 event pairs, 1092 based on Foata normal form. 226/3320 useless extension candidates. Maximal degree in co-relation 5867. Up to 2155 conditions per place. [2022-12-13 11:49:52,339 INFO L137 encePairwiseOnDemand]: 300/321 looper letters, 63 selfloop transitions, 8 changer transitions 0/148 dead transitions. [2022-12-13 11:49:52,340 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 148 transitions, 450 flow [2022-12-13 11:49:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:49:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:49:52,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 672 transitions. [2022-12-13 11:49:52,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6978193146417445 [2022-12-13 11:49:52,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 672 transitions. [2022-12-13 11:49:52,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 672 transitions. [2022-12-13 11:49:52,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:49:52,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 672 transitions. [2022-12-13 11:49:52,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,362 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,363 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,364 INFO L175 Difference]: Start difference. First operand has 120 places, 135 transitions, 279 flow. Second operand 3 states and 672 transitions. [2022-12-13 11:49:52,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 148 transitions, 450 flow [2022-12-13 11:49:52,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 148 transitions, 444 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 11:49:52,370 INFO L231 Difference]: Finished difference. Result has 118 places, 130 transitions, 304 flow [2022-12-13 11:49:52,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=118, PETRI_TRANSITIONS=130} [2022-12-13 11:49:52,375 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, -2 predicate places. [2022-12-13 11:49:52,375 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 130 transitions, 304 flow [2022-12-13 11:49:52,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.66666666666666) internal successors, (587), 3 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:49:52,375 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:49:52,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:49:52,376 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-13 11:49:52,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:49:52,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1489248140, now seen corresponding path program 1 times [2022-12-13 11:49:52,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:49:52,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309063684] [2022-12-13 11:49:52,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:52,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:49:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:49:52,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:49:52,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309063684] [2022-12-13 11:49:52,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309063684] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:49:52,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:49:52,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:49:52,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471610818] [2022-12-13 11:49:52,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:49:52,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:49:52,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:49:52,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:49:52,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:49:52,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 321 [2022-12-13 11:49:52,449 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 130 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,449 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:49:52,449 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 321 [2022-12-13 11:49:52,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:49:52,811 INFO L130 PetriNetUnfolder]: 1649/4064 cut-off events. [2022-12-13 11:49:52,811 INFO L131 PetriNetUnfolder]: For 254/295 co-relation queries the response was YES. [2022-12-13 11:49:52,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6883 conditions, 4064 events. 1649/4064 cut-off events. For 254/295 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 29139 event pairs, 1119 based on Foata normal form. 0/3325 useless extension candidates. Maximal degree in co-relation 6324. Up to 2261 conditions per place. [2022-12-13 11:49:52,833 INFO L137 encePairwiseOnDemand]: 312/321 looper letters, 65 selfloop transitions, 8 changer transitions 0/155 dead transitions. [2022-12-13 11:49:52,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 155 transitions, 507 flow [2022-12-13 11:49:52,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:49:52,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:49:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 654 transitions. [2022-12-13 11:49:52,835 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6791277258566978 [2022-12-13 11:49:52,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 654 transitions. [2022-12-13 11:49:52,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 654 transitions. [2022-12-13 11:49:52,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:49:52,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 654 transitions. [2022-12-13 11:49:52,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 218.0) internal successors, (654), 3 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,839 INFO L175 Difference]: Start difference. First operand has 118 places, 130 transitions, 304 flow. Second operand 3 states and 654 transitions. [2022-12-13 11:49:52,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 155 transitions, 507 flow [2022-12-13 11:49:52,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 155 transitions, 497 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:49:52,842 INFO L231 Difference]: Finished difference. Result has 120 places, 137 transitions, 350 flow [2022-12-13 11:49:52,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=120, PETRI_TRANSITIONS=137} [2022-12-13 11:49:52,843 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 0 predicate places. [2022-12-13 11:49:52,843 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 137 transitions, 350 flow [2022-12-13 11:49:52,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,843 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:49:52,843 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:49:52,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:49:52,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-13 11:49:52,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:49:52,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1460759229, now seen corresponding path program 1 times [2022-12-13 11:49:52,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:49:52,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335422947] [2022-12-13 11:49:52,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:52,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:49:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:52,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:49:52,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:49:52,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335422947] [2022-12-13 11:49:52,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335422947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:49:52,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:49:52,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:49:52,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711523375] [2022-12-13 11:49:52,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:49:52,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:49:52,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:49:52,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:49:52,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:49:52,909 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 321 [2022-12-13 11:49:52,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 137 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:52,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:49:52,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 321 [2022-12-13 11:49:52,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:49:53,566 INFO L130 PetriNetUnfolder]: 3659/8800 cut-off events. [2022-12-13 11:49:53,567 INFO L131 PetriNetUnfolder]: For 879/1003 co-relation queries the response was YES. [2022-12-13 11:49:53,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15679 conditions, 8800 events. 3659/8800 cut-off events. For 879/1003 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 72957 event pairs, 847 based on Foata normal form. 10/7299 useless extension candidates. Maximal degree in co-relation 15061. Up to 2647 conditions per place. [2022-12-13 11:49:53,600 INFO L137 encePairwiseOnDemand]: 298/321 looper letters, 95 selfloop transitions, 23 changer transitions 0/189 dead transitions. [2022-12-13 11:49:53,601 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 189 transitions, 731 flow [2022-12-13 11:49:53,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:49:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:49:53,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 667 transitions. [2022-12-13 11:49:53,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6926272066458983 [2022-12-13 11:49:53,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 667 transitions. [2022-12-13 11:49:53,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 667 transitions. [2022-12-13 11:49:53,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:49:53,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 667 transitions. [2022-12-13 11:49:53,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:53,605 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:53,605 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:53,605 INFO L175 Difference]: Start difference. First operand has 120 places, 137 transitions, 350 flow. Second operand 3 states and 667 transitions. [2022-12-13 11:49:53,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 189 transitions, 731 flow [2022-12-13 11:49:53,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 189 transitions, 715 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:49:53,609 INFO L231 Difference]: Finished difference. Result has 123 places, 160 transitions, 564 flow [2022-12-13 11:49:53,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=123, PETRI_TRANSITIONS=160} [2022-12-13 11:49:53,610 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2022-12-13 11:49:53,610 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 160 transitions, 564 flow [2022-12-13 11:49:53,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.33333333333334) internal successors, (565), 3 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:53,610 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:49:53,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:49:53,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:49:53,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-13 11:49:53,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:49:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash 943591636, now seen corresponding path program 1 times [2022-12-13 11:49:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:49:53,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917071455] [2022-12-13 11:49:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:53,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:49:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:49:53,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:49:53,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:49:53,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917071455] [2022-12-13 11:49:53,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917071455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:49:53,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:49:53,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:49:53,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864910992] [2022-12-13 11:49:53,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:49:53,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:49:53,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:49:53,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:49:53,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:49:53,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 321 [2022-12-13 11:49:53,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 160 transitions, 564 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:53,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:49:53,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 321 [2022-12-13 11:49:53,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:49:54,821 INFO L130 PetriNetUnfolder]: 6735/15184 cut-off events. [2022-12-13 11:49:54,821 INFO L131 PetriNetUnfolder]: For 5512/5702 co-relation queries the response was YES. [2022-12-13 11:49:54,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31213 conditions, 15184 events. 6735/15184 cut-off events. For 5512/5702 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 131987 event pairs, 1610 based on Foata normal form. 84/13298 useless extension candidates. Maximal degree in co-relation 30566. Up to 5313 conditions per place. [2022-12-13 11:49:54,891 INFO L137 encePairwiseOnDemand]: 298/321 looper letters, 109 selfloop transitions, 23 changer transitions 0/217 dead transitions. [2022-12-13 11:49:54,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 217 transitions, 1015 flow [2022-12-13 11:49:54,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:49:54,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:49:54,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2022-12-13 11:49:54,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6915887850467289 [2022-12-13 11:49:54,893 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 666 transitions. [2022-12-13 11:49:54,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 666 transitions. [2022-12-13 11:49:54,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:49:54,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 666 transitions. [2022-12-13 11:49:54,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:54,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:54,898 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 321.0) internal successors, (1284), 4 states have internal predecessors, (1284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:54,898 INFO L175 Difference]: Start difference. First operand has 123 places, 160 transitions, 564 flow. Second operand 3 states and 666 transitions. [2022-12-13 11:49:54,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 217 transitions, 1015 flow [2022-12-13 11:49:54,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 217 transitions, 957 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:49:54,911 INFO L231 Difference]: Finished difference. Result has 125 places, 183 transitions, 740 flow [2022-12-13 11:49:54,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=321, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=125, PETRI_TRANSITIONS=183} [2022-12-13 11:49:54,912 INFO L288 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2022-12-13 11:49:54,912 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 183 transitions, 740 flow [2022-12-13 11:49:54,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:49:54,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:49:54,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:49:54,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:49:54,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-12-13 11:49:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:49:54,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1861957419, now seen corresponding path program 1 times [2022-12-13 11:49:54,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:49:54,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993132185] [2022-12-13 11:49:54,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:49:54,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:49:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:49:54,931 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:49:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:49:54,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:49:54,952 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:49:54,953 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-12-13 11:49:54,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-12-13 11:49:54,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-12-13 11:49:54,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-12-13 11:49:54,955 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-12-13 11:49:54,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-12-13 11:49:54,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-12-13 11:49:54,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-12-13 11:49:54,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-12-13 11:49:54,956 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-12-13 11:49:54,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-12-13 11:49:54,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-12-13 11:49:54,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-12-13 11:49:54,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-12-13 11:49:54,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-12-13 11:49:54,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-12-13 11:49:54,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-12-13 11:49:54,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-12-13 11:49:54,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-12-13 11:49:54,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-12-13 11:49:54,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-12-13 11:49:54,958 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-12-13 11:49:54,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-12-13 11:49:54,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-12-13 11:49:54,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-12-13 11:49:54,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-12-13 11:49:54,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-12-13 11:49:54,959 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-12-13 11:49:54,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-12-13 11:49:54,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 56 remaining) [2022-12-13 11:49:54,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 56 remaining) [2022-12-13 11:49:54,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-12-13 11:49:54,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-12-13 11:49:54,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-12-13 11:49:54,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-12-13 11:49:54,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-12-13 11:49:54,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-12-13 11:49:54,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-12-13 11:49:54,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-12-13 11:49:54,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-12-13 11:49:54,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-12-13 11:49:54,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-12-13 11:49:54,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-12-13 11:49:54,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-12-13 11:49:54,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-12-13 11:49:54,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-12-13 11:49:54,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-12-13 11:49:54,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-12-13 11:49:54,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-12-13 11:49:54,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-12-13 11:49:54,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-12-13 11:49:54,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-12-13 11:49:54,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-12-13 11:49:54,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-12-13 11:49:54,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-12-13 11:49:54,965 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-12-13 11:49:54,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:49:54,966 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 11:49:54,972 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:49:54,972 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:49:54,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:49:54 BasicIcfg [2022-12-13 11:49:54,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:49:54,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:49:54,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:49:54,991 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:49:54,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:49:49" (3/4) ... [2022-12-13 11:49:54,994 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:49:54,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:49:54,994 INFO L158 Benchmark]: Toolchain (without parser) took 5900.49ms. Allocated memory was 132.1MB in the beginning and 427.8MB in the end (delta: 295.7MB). Free memory was 93.7MB in the beginning and 144.0MB in the end (delta: -50.3MB). Peak memory consumption was 246.4MB. Max. memory is 16.1GB. [2022-12-13 11:49:54,995 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:49:54,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.79ms. Allocated memory is still 132.1MB. Free memory was 93.7MB in the beginning and 73.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 11:49:54,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.10ms. Allocated memory is still 132.1MB. Free memory was 73.9MB in the beginning and 71.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:49:54,996 INFO L158 Benchmark]: Boogie Preprocessor took 22.95ms. Allocated memory is still 132.1MB. Free memory was 71.7MB in the beginning and 70.0MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:49:54,996 INFO L158 Benchmark]: RCFGBuilder took 403.77ms. Allocated memory is still 132.1MB. Free memory was 70.0MB in the beginning and 101.5MB in the end (delta: -31.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2022-12-13 11:49:54,997 INFO L158 Benchmark]: TraceAbstraction took 5095.20ms. Allocated memory was 174.1MB in the beginning and 427.8MB in the end (delta: 253.8MB). Free memory was 145.4MB in the beginning and 144.0MB in the end (delta: 1.4MB). Peak memory consumption was 254.0MB. Max. memory is 16.1GB. [2022-12-13 11:49:54,997 INFO L158 Benchmark]: Witness Printer took 2.86ms. Allocated memory is still 427.8MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:49:54,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.79ms. Allocated memory is still 132.1MB. Free memory was 93.7MB in the beginning and 73.9MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.10ms. Allocated memory is still 132.1MB. Free memory was 73.9MB in the beginning and 71.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.95ms. Allocated memory is still 132.1MB. Free memory was 71.7MB in the beginning and 70.0MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 403.77ms. Allocated memory is still 132.1MB. Free memory was 70.0MB in the beginning and 101.5MB in the end (delta: -31.5MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5095.20ms. Allocated memory was 174.1MB in the beginning and 427.8MB in the end (delta: 253.8MB). Free memory was 145.4MB in the beginning and 144.0MB in the end (delta: 1.4MB). Peak memory consumption was 254.0MB. Max. memory is 16.1GB. * Witness Printer took 2.86ms. Allocated memory is still 427.8MB. Free memory is still 144.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 198 PlacesBefore, 120 PlacesAfterwards, 213 TransitionsBefore, 135 TransitionsAfterwards, 19656 CoEnabledTransitionPairs, 5 FixpointIterations, 19 TrivialSequentialCompositions, 67 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 96 TotalNumberOfCompositions, 91283 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 18933, independent: 17828, independent conditional: 0, independent unconditional: 17828, dependent: 1105, dependent conditional: 0, dependent unconditional: 1105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8140, independent: 7936, independent conditional: 0, independent unconditional: 7936, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 18933, independent: 9892, independent conditional: 0, independent unconditional: 9892, dependent: 901, dependent conditional: 0, dependent unconditional: 901, unknown: 8140, unknown conditional: 0, unknown unconditional: 8140] , Statistics on independence cache: Total cache size (in pairs): 1486, Positive cache size: 1345, Positive conditional cache size: 0, Positive unconditional cache size: 1345, Negative cache size: 141, Negative conditional cache size: 0, Negative unconditional cache size: 141, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 703]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int x; [L719] 0 pthread_t t1, t2; [L720] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=0, t1={5:0}, t2={3:0}, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, x=0] [L721] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=1, t1={5:0}, t2={3:0}, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag1 = 1=49, flag2=1, x=0] [L687] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, x=0] [L688] 1 flag2 >= 3 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, x=0] [L703] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, x=0] Now there is a data race on ~flag2~0 between C: flag2 >= 3 [688] and C: flag2 = 1 [703] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 354 locations, 56 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 368 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 180 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 600 IncrementalHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 60 mSDtfsCounter, 600 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=740occurred in iteration=4, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 11:49:55,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bedbeff-c4c8-440a-afb7-6d046fc6cc87/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE