./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/qw2004-1.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_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/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_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/qw2004-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/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_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/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 3fb83c29fe591f537beeb8acce355ea986d79a29cfcecdcee0a9fb1725d601d1 --- 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 13:41:24,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:41:24,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:41:24,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:41:24,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:41:24,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:41:24,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:41:24,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:41:24,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:41:24,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:41:24,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:41:24,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:41:24,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:41:24,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:41:24,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:41:24,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:41:24,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:41:24,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:41:24,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:41:24,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:41:24,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:41:24,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:41:24,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:41:24,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:41:24,092 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:41:24,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:41:24,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:41:24,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:41:24,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:41:24,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:41:24,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:41:24,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:41:24,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:41:24,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:41:24,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:41:24,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:41:24,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:41:24,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:41:24,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:41:24,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:41:24,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:41:24,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:41:24,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:41:24,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:41:24,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:41:24,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:41:24,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:41:24,126 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:41:24,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:41:24,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:41:24,127 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:41:24,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:41:24,127 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:41:24,128 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:41:24,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:41:24,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:41:24,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:41:24,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:41:24,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:41:24,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:41:24,129 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:41:24,129 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:41:24,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:41:24,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:41:24,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:41:24,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:41:24,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:41:24,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:41:24,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:41:24,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:41:24,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:41:24,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:41:24,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:41:24,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:41:24,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:41:24,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:41:24,132 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:41:24,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:41:24,132 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:41:24,132 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_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fb83c29fe591f537beeb8acce355ea986d79a29cfcecdcee0a9fb1725d601d1 [2022-12-13 13:41:24,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:41:24,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:41:24,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:41:24,368 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:41:24,368 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:41:24,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-lit/qw2004-1.i [2022-12-13 13:41:26,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:41:27,109 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:41:27,110 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/sv-benchmarks/c/pthread-lit/qw2004-1.i [2022-12-13 13:41:27,117 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/data/4e5a834d5/1fab779c6cac48e8afe4854a48800b3b/FLAG5ca802dd6 [2022-12-13 13:41:27,508 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/data/4e5a834d5/1fab779c6cac48e8afe4854a48800b3b [2022-12-13 13:41:27,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:41:27,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:41:27,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:41:27,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:41:27,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:41:27,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d51a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27, skipping insertion in model container [2022-12-13 13:41:27,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:41:27,567 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:41:27,795 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_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2022-12-13 13:41:27,798 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:41:27,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:41:27,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:41:27,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:41:27,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:41:27,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:41:27,826 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:41:27,859 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_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/sv-benchmarks/c/pthread-lit/qw2004-1.i[30003,30016] [2022-12-13 13:41:27,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:41:27,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:41:27,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:41:27,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:41:27,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:41:27,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:41:27,896 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:41:27,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27 WrapperNode [2022-12-13 13:41:27,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:41:27,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:41:27,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:41:27,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:41:27,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,938 INFO L138 Inliner]: procedures = 175, calls = 23, calls flagged for inlining = 9, calls inlined = 10, statements flattened = 158 [2022-12-13 13:41:27,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:41:27,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:41:27,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:41:27,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:41:27,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,959 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:41:27,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:41:27,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:41:27,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:41:27,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (1/1) ... [2022-12-13 13:41:27,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:41:27,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:27,992 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:41:27,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:41:28,023 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2022-12-13 13:41:28,023 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:41:28,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:41:28,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:41:28,025 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 13:41:28,131 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:41:28,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:41:28,325 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:41:28,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:41:28,383 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:41:28,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:28 BoogieIcfgContainer [2022-12-13 13:41:28,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:41:28,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:41:28,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:41:28,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:41:28,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:41:27" (1/3) ... [2022-12-13 13:41:28,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7087d31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:41:28, skipping insertion in model container [2022-12-13 13:41:28,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:41:27" (2/3) ... [2022-12-13 13:41:28,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7087d31d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:41:28, skipping insertion in model container [2022-12-13 13:41:28,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:28" (3/3) ... [2022-12-13 13:41:28,391 INFO L112 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2022-12-13 13:41:28,398 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:41:28,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:41:28,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-12-13 13:41:28,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:41:28,443 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:41:28,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 169 transitions, 343 flow [2022-12-13 13:41:28,516 INFO L130 PetriNetUnfolder]: 6/168 cut-off events. [2022-12-13 13:41:28,517 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:28,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 168 events. 6/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2022-12-13 13:41:28,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 169 transitions, 343 flow [2022-12-13 13:41:28,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 166 places, 168 transitions, 339 flow [2022-12-13 13:41:28,529 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:41:28,537 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 166 places, 168 transitions, 339 flow [2022-12-13 13:41:28,539 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 166 places, 168 transitions, 339 flow [2022-12-13 13:41:28,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 166 places, 168 transitions, 339 flow [2022-12-13 13:41:28,567 INFO L130 PetriNetUnfolder]: 6/168 cut-off events. [2022-12-13 13:41:28,567 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:28,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 168 events. 6/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2022-12-13 13:41:28,570 INFO L119 LiptonReduction]: Number of co-enabled transitions 7344 [2022-12-13 13:41:30,776 INFO L134 LiptonReduction]: Checked pairs total: 16728 [2022-12-13 13:41:30,776 INFO L136 LiptonReduction]: Total number of compositions: 186 [2022-12-13 13:41:30,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:41:30,790 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;@c25ccbc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:41:30,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-13 13:41:30,791 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:41:30,792 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:30,792 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:30,792 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:41:30,792 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 13:41:30,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash 704, now seen corresponding path program 1 times [2022-12-13 13:41:30,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:30,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138238480] [2022-12-13 13:41:30,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:30,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:30,879 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 13:41:30,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:30,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138238480] [2022-12-13 13:41:30,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138238480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:30,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:30,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:41:30,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187907537] [2022-12-13 13:41:30,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:30,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:41:30,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:30,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:41:30,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:41:30,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 355 [2022-12-13 13:41:30,905 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 46 transitions, 95 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) [2022-12-13 13:41:30,905 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:30,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 355 [2022-12-13 13:41:30,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:30,966 INFO L130 PetriNetUnfolder]: 111/265 cut-off events. [2022-12-13 13:41:30,966 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:30,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 265 events. 111/265 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1138 event pairs, 80 based on Foata normal form. 9/232 useless extension candidates. Maximal degree in co-relation 463. Up to 203 conditions per place. [2022-12-13 13:41:30,968 INFO L137 encePairwiseOnDemand]: 341/355 looper letters, 22 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2022-12-13 13:41:30,968 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 32 transitions, 111 flow [2022-12-13 13:41:30,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:41:30,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:41:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 340 transitions. [2022-12-13 13:41:30,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4788732394366197 [2022-12-13 13:41:30,979 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 340 transitions. [2022-12-13 13:41:30,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 340 transitions. [2022-12-13 13:41:30,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:30,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 340 transitions. [2022-12-13 13:41:30,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 170.0) internal successors, (340), 2 states have internal predecessors, (340), 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 13:41:30,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 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 13:41:30,988 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 355.0) internal successors, (1065), 3 states have internal predecessors, (1065), 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 13:41:30,990 INFO L175 Difference]: Start difference. First operand has 46 places, 46 transitions, 95 flow. Second operand 2 states and 340 transitions. [2022-12-13 13:41:30,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 32 transitions, 111 flow [2022-12-13 13:41:30,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 32 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:30,993 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 66 flow [2022-12-13 13:41:30,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2022-12-13 13:41:30,998 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2022-12-13 13:41:30,998 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 66 flow [2022-12-13 13:41:30,998 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) [2022-12-13 13:41:30,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:30,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:41:30,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:41:30,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 13:41:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash 673873335, now seen corresponding path program 1 times [2022-12-13 13:41:30,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:30,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210661389] [2022-12-13 13:41:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:31,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:31,058 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 13:41:31,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:31,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210661389] [2022-12-13 13:41:31,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210661389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:31,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:31,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:41:31,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172757624] [2022-12-13 13:41:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:31,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:41:31,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:41:31,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:41:31,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 355 [2022-12-13 13:41:31,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 13:41:31,072 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:31,072 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 355 [2022-12-13 13:41:31,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:31,143 INFO L130 PetriNetUnfolder]: 137/317 cut-off events. [2022-12-13 13:41:31,143 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:31,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 317 events. 137/317 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1391 event pairs, 86 based on Foata normal form. 0/265 useless extension candidates. Maximal degree in co-relation 572. Up to 237 conditions per place. [2022-12-13 13:41:31,145 INFO L137 encePairwiseOnDemand]: 350/355 looper letters, 31 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2022-12-13 13:41:31,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 43 transitions, 158 flow [2022-12-13 13:41:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:41:31,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:41:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2022-12-13 13:41:31,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4450704225352113 [2022-12-13 13:41:31,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2022-12-13 13:41:31,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2022-12-13 13:41:31,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:31,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2022-12-13 13:41:31,149 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) [2022-12-13 13:41:31,153 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 13:41:31,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 13:41:31,153 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 66 flow. Second operand 3 states and 474 transitions. [2022-12-13 13:41:31,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 43 transitions, 158 flow [2022-12-13 13:41:31,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 158 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:41:31,154 INFO L231 Difference]: Finished difference. Result has 36 places, 35 transitions, 92 flow [2022-12-13 13:41:31,154 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=36, PETRI_TRANSITIONS=35} [2022-12-13 13:41:31,155 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -10 predicate places. [2022-12-13 13:41:31,155 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 35 transitions, 92 flow [2022-12-13 13:41:31,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.66666666666666) internal successors, (443), 3 states have internal predecessors, (443), 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 13:41:31,156 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:31,156 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:41:31,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:41:31,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 13:41:31,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash 673976351, now seen corresponding path program 1 times [2022-12-13 13:41:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:31,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884989313] [2022-12-13 13:41:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:31,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:31,194 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 13:41:31,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:31,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884989313] [2022-12-13 13:41:31,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884989313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:31,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:31,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:41:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881886393] [2022-12-13 13:41:31,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:31,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:41:31,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:31,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:41:31,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:41:31,207 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 355 [2022-12-13 13:41:31,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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 13:41:31,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:31,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 355 [2022-12-13 13:41:31,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:31,291 INFO L130 PetriNetUnfolder]: 177/410 cut-off events. [2022-12-13 13:41:31,291 INFO L131 PetriNetUnfolder]: For 35/54 co-relation queries the response was YES. [2022-12-13 13:41:31,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 410 events. 177/410 cut-off events. For 35/54 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2014 event pairs, 61 based on Foata normal form. 11/362 useless extension candidates. Maximal degree in co-relation 828. Up to 177 conditions per place. [2022-12-13 13:41:31,294 INFO L137 encePairwiseOnDemand]: 351/355 looper letters, 41 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2022-12-13 13:41:31,294 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 53 transitions, 221 flow [2022-12-13 13:41:31,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:41:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:41:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2022-12-13 13:41:31,297 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45258215962441317 [2022-12-13 13:41:31,297 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 482 transitions. [2022-12-13 13:41:31,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 482 transitions. [2022-12-13 13:41:31,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:31,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 482 transitions. [2022-12-13 13:41:31,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 160.66666666666666) internal successors, (482), 3 states have internal predecessors, (482), 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 13:41:31,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 13:41:31,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 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 13:41:31,302 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 92 flow. Second operand 3 states and 482 transitions. [2022-12-13 13:41:31,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 53 transitions, 221 flow [2022-12-13 13:41:31,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 53 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:31,304 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 110 flow [2022-12-13 13:41:31,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2022-12-13 13:41:31,305 INFO L288 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2022-12-13 13:41:31,305 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 110 flow [2022-12-13 13:41:31,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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 13:41:31,306 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:31,306 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:41:31,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:41:31,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE === [BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE, BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2022-12-13 13:41:31,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:31,307 INFO L85 PathProgramCache]: Analyzing trace with hash -584755639, now seen corresponding path program 1 times [2022-12-13 13:41:31,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:31,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424050065] [2022-12-13 13:41:31,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:31,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:31,330 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:41:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:31,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:41:31,352 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:41:31,353 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (26 of 27 remaining) [2022-12-13 13:41:31,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2022-12-13 13:41:31,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2022-12-13 13:41:31,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2022-12-13 13:41:31,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2022-12-13 13:41:31,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr1ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr2ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr3ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr5ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr4ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2022-12-13 13:41:31,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location BCSP_PnpStopErr6ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2022-12-13 13:41:31,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:41:31,361 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 13:41:31,367 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:41:31,367 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:41:31,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:41:31 BasicIcfg [2022-12-13 13:41:31,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:41:31,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:41:31,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:41:31,382 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:41:31,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:41:28" (3/4) ... [2022-12-13 13:41:31,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:41:31,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:41:31,385 INFO L158 Benchmark]: Toolchain (without parser) took 3870.34ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 90.3MB in the beginning and 122.9MB in the end (delta: -32.6MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-12-13 13:41:31,385 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 125.8MB. Free memory was 89.4MB in the beginning and 89.4MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:31,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 379.86ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 69.5MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:41:31,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.56ms. Allocated memory is still 125.8MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:41:31,386 INFO L158 Benchmark]: Boogie Preprocessor took 24.63ms. Allocated memory is still 125.8MB. Free memory was 67.4MB in the beginning and 65.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:41:31,386 INFO L158 Benchmark]: RCFGBuilder took 420.63ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 65.8MB in the beginning and 127.8MB in the end (delta: -62.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-12-13 13:41:31,387 INFO L158 Benchmark]: TraceAbstraction took 2995.29ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 123.9MB in the end (delta: 2.8MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. [2022-12-13 13:41:31,387 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 122.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:41:31,389 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 125.8MB. Free memory was 89.4MB in the beginning and 89.4MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 379.86ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 69.5MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.56ms. Allocated memory is still 125.8MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.63ms. Allocated memory is still 125.8MB. Free memory was 67.4MB in the beginning and 65.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 420.63ms. Allocated memory was 125.8MB in the beginning and 159.4MB in the end (delta: 33.6MB). Free memory was 65.8MB in the beginning and 127.8MB in the end (delta: -62.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2995.29ms. Allocated memory is still 159.4MB. Free memory was 126.7MB in the beginning and 123.9MB in the end (delta: 2.8MB). Peak memory consumption was 82.5MB. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 159.4MB. Free memory was 123.9MB in the beginning and 122.9MB in the end (delta: 1.0MB). 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: 2.2s, 166 PlacesBefore, 46 PlacesAfterwards, 168 TransitionsBefore, 46 TransitionsAfterwards, 7344 CoEnabledTransitionPairs, 8 FixpointIterations, 52 TrivialSequentialCompositions, 110 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 22 ConcurrentYvCompositions, 2 ChoiceCompositions, 186 TotalNumberOfCompositions, 16728 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9677, independent: 9276, independent conditional: 0, independent unconditional: 9276, dependent: 401, dependent conditional: 0, dependent unconditional: 401, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4386, independent: 4305, independent conditional: 0, independent unconditional: 4305, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9677, independent: 4971, independent conditional: 0, independent unconditional: 4971, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 4386, unknown conditional: 0, unknown unconditional: 4386] , Statistics on independence cache: Total cache size (in pairs): 258, Positive cache size: 233, Positive conditional cache size: 0, Positive unconditional cache size: 233, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 736]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L743] 0 pthread_t t; [L744] 0 pendingIo = 1 [L745] 0 stoppingFlag = 0 [L746] 0 stoppingEvent = 0 [L747] 0 stopped = 0 [L748] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, pthread_create(&t, 0, BCSP_PnpStop, 0)=-1, stopped=0, stoppingEvent=0, stoppingFlag=0, t={3:0}] [L736] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, stoppingFlag = 1=50] [L749] CALL 0 BCSP_PnpAdd(0) [L727] 0 int status; [L728] CALL 0 BCSP_IoIncrement() [L703] 0 \read(stoppingFlag) [L703] 0 \read(stoppingFlag) [L703] COND TRUE 0 \read(stoppingFlag) [L705] 0 return -1; [L728] RET 0 BCSP_IoIncrement() [L736] 1 stoppingFlag = 1 VAL [arg={0:0}, arg={0:0}, pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1, stoppingFlag = 1=50] Now there is a data race on ~stoppingFlag~0 between C: if (stoppingFlag) { __VERIFIER_atomic_end(); return -1; } else { pendingIo = pendingIo + 1; } [703-708] and C: stoppingFlag = 1 [736] - 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: 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: 738]: 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: 739]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 746]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: 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: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 730]: 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: 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: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 748]: 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 3 procedures, 215 locations, 27 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: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 158 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 3 mSDtfsCounter, 158 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 13:41:31,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92c11e4d-bd63-44d3-bea0-c2a5b30f8778/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