./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:24:41,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:24:41,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:24:41,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:24:41,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:24:41,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:24:41,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:24:41,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:24:41,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:24:41,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:24:41,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:24:41,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:24:41,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:24:41,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:24:41,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:24:41,987 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:24:41,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:24:41,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:24:41,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:24:42,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:24:42,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:24:42,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:24:42,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:24:42,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:24:42,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:24:42,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:24:42,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:24:42,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:24:42,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:24:42,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:24:42,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:24:42,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:24:42,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:24:42,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:24:42,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:24:42,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:24:42,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:24:42,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:24:42,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:24:42,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:24:42,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:24:42,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 23:24:42,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:24:42,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:24:42,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:24:42,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:24:42,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:24:42,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:24:42,081 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:24:42,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:24:42,081 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:24:42,082 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:24:42,083 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:24:42,083 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:24:42,083 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:24:42,084 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:24:42,084 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:24:42,084 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:24:42,084 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:24:42,084 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:24:42,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:24:42,086 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:24:42,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:24:42,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:24:42,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:24:42,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:24:42,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:24:42,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:24:42,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:24:42,088 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 23:24:42,088 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:24:42,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:24:42,089 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:24:42,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:24:42,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:24:42,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:24:42,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:24:42,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:24:42,092 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:24:42,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:24:42,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:24:42,092 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:24:42,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:24:42,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:24:42,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:24:42,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 [2022-11-25 23:24:42,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:24:42,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:24:42,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:24:42,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:24:42,392 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:24:42,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-atomic/dekker-b.i [2022-11-25 23:24:45,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:24:45,658 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:24:45,658 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/sv-benchmarks/c/pthread-atomic/dekker-b.i [2022-11-25 23:24:45,672 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/data/686511264/378277b86efa4693aeb339e60cecb04a/FLAGd4fda6f9b [2022-11-25 23:24:45,687 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/data/686511264/378277b86efa4693aeb339e60cecb04a [2022-11-25 23:24:45,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:24:45,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:24:45,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:24:45,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:24:45,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:24:45,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:24:45" (1/1) ... [2022-11-25 23:24:45,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d3398d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:45, skipping insertion in model container [2022-11-25 23:24:45,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:24:45" (1/1) ... [2022-11-25 23:24:45,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:24:45,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:24:46,103 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_1b149221-6269-45e5-9023-3f896ed525bc/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2022-11-25 23:24:46,113 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_1b149221-6269-45e5-9023-3f896ed525bc/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2022-11-25 23:24:46,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:24:46,141 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:24:46,207 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_1b149221-6269-45e5-9023-3f896ed525bc/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2022-11-25 23:24:46,210 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_1b149221-6269-45e5-9023-3f896ed525bc/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2022-11-25 23:24:46,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:24:46,246 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:24:46,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46 WrapperNode [2022-11-25 23:24:46,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:24:46,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:24:46,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:24:46,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:24:46,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,289 INFO L138 Inliner]: procedures = 168, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-11-25 23:24:46,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:24:46,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:24:46,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:24:46,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:24:46,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,319 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:24:46,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:24:46,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:24:46,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:24:46,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (1/1) ... [2022-11-25 23:24:46,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:24:46,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:24:46,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:24:46,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:24:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:24:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-25 23:24:46,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-25 23:24:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-25 23:24:46,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-25 23:24:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:24:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:24:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:24:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:24:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:24:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:24:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:24:46,419 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 23:24:46,604 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:24:46,617 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:24:46,942 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:24:46,952 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:24:46,952 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:24:46,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:46 BoogieIcfgContainer [2022-11-25 23:24:46,954 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:24:46,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:24:46,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:24:46,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:24:46,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:24:45" (1/3) ... [2022-11-25 23:24:46,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484d9d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:24:46, skipping insertion in model container [2022-11-25 23:24:46,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:46" (2/3) ... [2022-11-25 23:24:46,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@484d9d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:24:46, skipping insertion in model container [2022-11-25 23:24:46,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:46" (3/3) ... [2022-11-25 23:24:46,965 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2022-11-25 23:24:46,975 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 23:24:46,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:24:46,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-11-25 23:24:46,987 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 23:24:47,133 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-25 23:24:47,184 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 23:24:47,201 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 203 transitions, 422 flow [2022-11-25 23:24:47,205 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 203 transitions, 422 flow [2022-11-25 23:24:47,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 203 transitions, 422 flow [2022-11-25 23:24:47,310 INFO L130 PetriNetUnfolder]: 14/201 cut-off events. [2022-11-25 23:24:47,311 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 23:24:47,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 201 events. 14/201 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 452 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2022-11-25 23:24:47,328 INFO L119 LiptonReduction]: Number of co-enabled transitions 12096 [2022-11-25 23:24:52,431 INFO L134 LiptonReduction]: Checked pairs total: 62627 [2022-11-25 23:24:52,431 INFO L136 LiptonReduction]: Total number of compositions: 143 [2022-11-25 23:24:52,440 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 102 transitions, 220 flow [2022-11-25 23:24:52,640 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4761 states, 4507 states have (on average 3.0252939871311293) internal successors, (13635), 4760 states have internal predecessors, (13635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:52,664 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:24:52,670 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=FINITE_AUTOMATA, 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;@21ae5107, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:24:52,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-11-25 23:24:52,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 4761 states, 4507 states have (on average 3.0252939871311293) internal successors, (13635), 4760 states have internal predecessors, (13635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-25 23:24:52,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:52,693 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-25 23:24:52,694 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:52,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:52,699 INFO L85 PathProgramCache]: Analyzing trace with hash 768, now seen corresponding path program 1 times [2022-11-25 23:24:52,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:52,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912659483] [2022-11-25 23:24:52,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:52,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:52,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:52,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912659483] [2022-11-25 23:24:52,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912659483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:52,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:52,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 23:24:52,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231837442] [2022-11-25 23:24:52,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:52,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:24:52,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:52,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:24:52,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:24:52,874 INFO L87 Difference]: Start difference. First operand has 4761 states, 4507 states have (on average 3.0252939871311293) internal successors, (13635), 4760 states have internal predecessors, (13635), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:53,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:53,030 INFO L93 Difference]: Finished difference Result 3199 states and 8237 transitions. [2022-11-25 23:24:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:24:53,032 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-11-25 23:24:53,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:53,082 INFO L225 Difference]: With dead ends: 3199 [2022-11-25 23:24:53,082 INFO L226 Difference]: Without dead ends: 3196 [2022-11-25 23:24:53,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:24:53,087 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:53,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:24:53,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2022-11-25 23:24:53,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3196. [2022-11-25 23:24:53,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3076 states have (on average 2.67555266579974) internal successors, (8230), 3195 states have internal predecessors, (8230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 8230 transitions. [2022-11-25 23:24:53,299 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 8230 transitions. Word has length 1 [2022-11-25 23:24:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:53,303 INFO L495 AbstractCegarLoop]: Abstraction has 3196 states and 8230 transitions. [2022-11-25 23:24:53,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:53,304 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 8230 transitions. [2022-11-25 23:24:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:24:53,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:53,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:24:53,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:24:53,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash 730366454, now seen corresponding path program 1 times [2022-11-25 23:24:53,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:53,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494835712] [2022-11-25 23:24:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:53,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:53,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494835712] [2022-11-25 23:24:53,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494835712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:53,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:53,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:24:53,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664244428] [2022-11-25 23:24:53,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:53,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:53,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:53,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:53,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:53,452 INFO L87 Difference]: Start difference. First operand 3196 states and 8230 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:53,653 INFO L93 Difference]: Finished difference Result 3256 states and 8385 transitions. [2022-11-25 23:24:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:53,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-11-25 23:24:53,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:53,673 INFO L225 Difference]: With dead ends: 3256 [2022-11-25 23:24:53,673 INFO L226 Difference]: Without dead ends: 3256 [2022-11-25 23:24:53,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:53,675 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 43 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:53,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 113 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:24:53,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2022-11-25 23:24:53,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3256. [2022-11-25 23:24:53,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3256 states, 3137 states have (on average 2.672935926043991) internal successors, (8385), 3255 states have internal predecessors, (8385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3256 states to 3256 states and 8385 transitions. [2022-11-25 23:24:53,802 INFO L78 Accepts]: Start accepts. Automaton has 3256 states and 8385 transitions. Word has length 5 [2022-11-25 23:24:53,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:53,803 INFO L495 AbstractCegarLoop]: Abstraction has 3256 states and 8385 transitions. [2022-11-25 23:24:53,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3256 states and 8385 transitions. [2022-11-25 23:24:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:24:53,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:53,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:53,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:24:53,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:53,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1802637084, now seen corresponding path program 1 times [2022-11-25 23:24:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:53,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746529561] [2022-11-25 23:24:53,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:53,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:53,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:53,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746529561] [2022-11-25 23:24:53,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746529561] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:53,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:53,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:24:53,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804067253] [2022-11-25 23:24:53,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:53,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:53,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:53,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:53,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:53,934 INFO L87 Difference]: Start difference. First operand 3256 states and 8385 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:54,113 INFO L93 Difference]: Finished difference Result 5842 states and 15102 transitions. [2022-11-25 23:24:54,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:54,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-25 23:24:54,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:54,148 INFO L225 Difference]: With dead ends: 5842 [2022-11-25 23:24:54,149 INFO L226 Difference]: Without dead ends: 5842 [2022-11-25 23:24:54,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:54,150 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 77 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:54,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 112 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:24:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5842 states. [2022-11-25 23:24:54,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5842 to 3324. [2022-11-25 23:24:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3205 states have (on average 2.670826833073323) internal successors, (8560), 3323 states have internal predecessors, (8560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 8560 transitions. [2022-11-25 23:24:54,331 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 8560 transitions. Word has length 7 [2022-11-25 23:24:54,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:54,334 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 8560 transitions. [2022-11-25 23:24:54,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,335 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 8560 transitions. [2022-11-25 23:24:54,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 23:24:54,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:54,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:54,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:24:54,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:54,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:54,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1834975657, now seen corresponding path program 1 times [2022-11-25 23:24:54,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:54,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953066933] [2022-11-25 23:24:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:54,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:54,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:54,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:54,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953066933] [2022-11-25 23:24:54,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953066933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:54,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:54,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:24:54,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697296691] [2022-11-25 23:24:54,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:54,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:54,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:54,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:54,406 INFO L87 Difference]: Start difference. First operand 3324 states and 8560 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:54,536 INFO L93 Difference]: Finished difference Result 3382 states and 8708 transitions. [2022-11-25 23:24:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:54,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-11-25 23:24:54,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:54,556 INFO L225 Difference]: With dead ends: 3382 [2022-11-25 23:24:54,556 INFO L226 Difference]: Without dead ends: 3382 [2022-11-25 23:24:54,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:54,557 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 42 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:54,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 114 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:24:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2022-11-25 23:24:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 3382. [2022-11-25 23:24:54,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3264 states have (on average 2.667892156862745) internal successors, (8708), 3381 states have internal predecessors, (8708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 8708 transitions. [2022-11-25 23:24:54,664 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 8708 transitions. Word has length 7 [2022-11-25 23:24:54,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:54,665 INFO L495 AbstractCegarLoop]: Abstraction has 3382 states and 8708 transitions. [2022-11-25 23:24:54,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 8708 transitions. [2022-11-25 23:24:54,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:24:54,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:54,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:54,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:24:54,666 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:54,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:54,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1819778544, now seen corresponding path program 1 times [2022-11-25 23:24:54,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:54,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931217566] [2022-11-25 23:24:54,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:54,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:54,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:54,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:54,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931217566] [2022-11-25 23:24:54,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931217566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:54,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:54,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:24:54,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560147237] [2022-11-25 23:24:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:54,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:54,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:54,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:54,742 INFO L87 Difference]: Start difference. First operand 3382 states and 8708 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:54,905 INFO L93 Difference]: Finished difference Result 5868 states and 15170 transitions. [2022-11-25 23:24:54,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:54,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2022-11-25 23:24:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:54,953 INFO L225 Difference]: With dead ends: 5868 [2022-11-25 23:24:54,953 INFO L226 Difference]: Without dead ends: 5868 [2022-11-25 23:24:54,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:54,955 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 75 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:54,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 112 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:24:54,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5868 states. [2022-11-25 23:24:55,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5868 to 3440. [2022-11-25 23:24:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3324 states have (on average 2.664259927797834) internal successors, (8856), 3439 states have internal predecessors, (8856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:55,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 8856 transitions. [2022-11-25 23:24:55,092 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 8856 transitions. Word has length 9 [2022-11-25 23:24:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:55,092 INFO L495 AbstractCegarLoop]: Abstraction has 3440 states and 8856 transitions. [2022-11-25 23:24:55,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 8856 transitions. [2022-11-25 23:24:55,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:24:55,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:55,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:55,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:24:55,096 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:55,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:55,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1909130683, now seen corresponding path program 1 times [2022-11-25 23:24:55,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:55,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224759310] [2022-11-25 23:24:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:55,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:55,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:55,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:24:55,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224759310] [2022-11-25 23:24:55,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224759310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:55,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:55,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:24:55,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179203557] [2022-11-25 23:24:55,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:55,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:24:55,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:24:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:24:55,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:55,193 INFO L87 Difference]: Start difference. First operand 3440 states and 8856 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:55,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:55,329 INFO L93 Difference]: Finished difference Result 4246 states and 10839 transitions. [2022-11-25 23:24:55,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:24:55,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) Word has length 10 [2022-11-25 23:24:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:55,349 INFO L225 Difference]: With dead ends: 4246 [2022-11-25 23:24:55,349 INFO L226 Difference]: Without dead ends: 4246 [2022-11-25 23:24:55,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:24:55,350 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 77 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:24:55,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 121 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:24:55,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4246 states. [2022-11-25 23:24:55,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4246 to 3380. [2022-11-25 23:24:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3264 states have (on average 2.6614583333333335) internal successors, (8687), 3379 states have internal predecessors, (8687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:55,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 8687 transitions. [2022-11-25 23:24:55,480 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 8687 transitions. Word has length 10 [2022-11-25 23:24:55,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:55,481 INFO L495 AbstractCegarLoop]: Abstraction has 3380 states and 8687 transitions. [2022-11-25 23:24:55,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:24:55,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 8687 transitions. [2022-11-25 23:24:55,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:24:55,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:55,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:55,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:24:55,483 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-11-25 23:24:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:55,484 INFO L85 PathProgramCache]: Analyzing trace with hash 701124438, now seen corresponding path program 1 times [2022-11-25 23:24:55,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:55,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369218014] [2022-11-25 23:24:55,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:55,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:24:55,501 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:24:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:24:55,533 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:24:55,534 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:24:55,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-11-25 23:24:55,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-11-25 23:24:55,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-11-25 23:24:55,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-11-25 23:24:55,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-11-25 23:24:55,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-11-25 23:24:55,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-11-25 23:24:55,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-11-25 23:24:55,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-11-25 23:24:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-11-25 23:24:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-11-25 23:24:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-11-25 23:24:55,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-11-25 23:24:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-11-25 23:24:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-11-25 23:24:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-11-25 23:24:55,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2022-11-25 23:24:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2022-11-25 23:24:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-11-25 23:24:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-11-25 23:24:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-11-25 23:24:55,541 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-11-25 23:24:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-11-25 23:24:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-11-25 23:24:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-11-25 23:24:55,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 46 remaining) [2022-11-25 23:24:55,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 46 remaining) [2022-11-25 23:24:55,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-11-25 23:24:55,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-11-25 23:24:55,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-11-25 23:24:55,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-11-25 23:24:55,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-11-25 23:24:55,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-11-25 23:24:55,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-11-25 23:24:55,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-11-25 23:24:55,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-11-25 23:24:55,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-11-25 23:24:55,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-11-25 23:24:55,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-11-25 23:24:55,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-11-25 23:24:55,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-11-25 23:24:55,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-11-25 23:24:55,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-11-25 23:24:55,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-11-25 23:24:55,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-11-25 23:24:55,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-11-25 23:24:55,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:24:55,550 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:55,556 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 23:24:55,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:24:55,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:24:55 BasicIcfg [2022-11-25 23:24:55,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:24:55,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:24:55,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:24:55,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:24:55,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:46" (3/4) ... [2022-11-25 23:24:55,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:24:55,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:24:55,590 INFO L158 Benchmark]: Toolchain (without parser) took 9899.32ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 102.0MB in the beginning and 97.6MB in the end (delta: 4.4MB). Peak memory consumption was 79.4MB. Max. memory is 16.1GB. [2022-11-25 23:24:55,590 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 134.2MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:24:55,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 555.17ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 82.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:24:55,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.45ms. Allocated memory is still 134.2MB. Free memory was 82.1MB in the beginning and 80.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:24:55,591 INFO L158 Benchmark]: Boogie Preprocessor took 32.56ms. Allocated memory is still 134.2MB. Free memory was 80.0MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:24:55,592 INFO L158 Benchmark]: RCFGBuilder took 630.65ms. Allocated memory is still 134.2MB. Free memory was 77.9MB in the beginning and 59.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:24:55,592 INFO L158 Benchmark]: TraceAbstraction took 8626.21ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 59.0MB in the beginning and 97.6MB in the end (delta: -38.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-11-25 23:24:55,592 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 207.6MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:24:55,594 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 134.2MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 555.17ms. Allocated memory is still 134.2MB. Free memory was 102.0MB in the beginning and 82.1MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.45ms. Allocated memory is still 134.2MB. Free memory was 82.1MB in the beginning and 80.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.56ms. Allocated memory is still 134.2MB. Free memory was 80.0MB in the beginning and 77.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.65ms. Allocated memory is still 134.2MB. Free memory was 77.9MB in the beginning and 59.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8626.21ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 59.0MB in the beginning and 97.6MB in the end (delta: -38.6MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 207.6MB. Free memory is still 97.6MB. 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: 5.2s, 196 PlacesBefore, 98 PlacesAfterwards, 203 TransitionsBefore, 102 TransitionsAfterwards, 12096 CoEnabledTransitionPairs, 7 FixpointIterations, 50 TrivialSequentialCompositions, 68 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 143 TotalNumberOfCompositions, 62627 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24852, independent: 23828, independent conditional: 0, independent unconditional: 23828, dependent: 1024, dependent conditional: 0, dependent unconditional: 1024, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8358, independent: 8198, independent conditional: 0, independent unconditional: 8198, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8358, independent: 8125, independent conditional: 0, independent unconditional: 8125, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 233, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 320, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24852, independent: 15630, independent conditional: 0, independent unconditional: 15630, dependent: 864, dependent conditional: 0, dependent unconditional: 864, unknown: 8358, unknown conditional: 0, unknown unconditional: 8358] , Statistics on independence cache: Total cache size (in pairs): 2209, Positive cache size: 2109, Positive conditional cache size: 0, Positive unconditional cache size: 2109, Negative cache size: 100, Negative conditional cache size: 0, Negative unconditional cache size: 100, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 707]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int flag1 = 0, flag2 = 0; [L689] 0 int turn; [L690] 0 int x; [L722] 0 pthread_t t1, t2; [L723] EXPR 0 0<=turn [L723] EXPR 0 0<=turn && turn<=1 [L723] EXPR 0 turn<=1 [L723] EXPR 0 0<=turn && turn<=1 [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=6, t1={3:0}, t2={5:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L725] 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)=7, t1={3:0}, t2={5:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag1 = 1=50, flag2=0, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag1 = 1=50, flag2=1, flag2 = 1=49, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 >= 1 [693] and C: flag2 = 1 [707] - 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: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: 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: 717]: 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: 718]: 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: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: 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: 701]: 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: 702]: 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: 703]: 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: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: 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: 725]: 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, 308 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 622 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 566 IncrementalHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 415 mSDtfsCounter, 566 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4761occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 5812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 23:24:55,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b149221-6269-45e5-9023-3f896ed525bc/bin/utaipan-ByfvJB40ur/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