./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh --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 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 07:10:42,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:10:42,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:10:42,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:10:42,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:10:42,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:10:42,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:10:42,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:10:42,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:10:42,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:10:42,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:10:42,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:10:42,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:10:42,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:10:42,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:10:42,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:10:42,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:10:42,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:10:42,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:10:42,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:10:42,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:10:42,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:10:42,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:10:42,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:10:42,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:10:42,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:10:42,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:10:42,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:10:42,995 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:10:42,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:10:42,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:10:42,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:10:42,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:10:42,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:10:43,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:10:43,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:10:43,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:10:43,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:10:43,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:10:43,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:10:43,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:10:43,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 07:10:43,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:10:43,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:10:43,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:10:43,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:10:43,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:10:43,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:10:43,027 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:10:43,027 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:10:43,027 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:10:43,027 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:10:43,027 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:10:43,028 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:10:43,028 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:10:43,028 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:10:43,028 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:10:43,028 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:10:43,029 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:10:43,029 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:10:43,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:10:43,029 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:10:43,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:10:43,031 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 07:10:43,031 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:10:43,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:10:43,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:10:43,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:10:43,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:10:43,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:10:43,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:10:43,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:10:43,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:10:43,040 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_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f746010868b331b940ee2293ff3d78b9aa516b26fde95d84f76493b23741d03 [2022-12-14 07:10:43,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:10:43,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:10:43,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:10:43,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:10:43,245 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:10:43,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread/stateful01-1.i [2022-12-14 07:10:45,867 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:10:46,059 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:10:46,059 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/sv-benchmarks/c/pthread/stateful01-1.i [2022-12-14 07:10:46,068 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/data/c93c9f11a/76d78c0bb04d4508ae4770929ed188af/FLAG944d17f60 [2022-12-14 07:10:46,078 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/data/c93c9f11a/76d78c0bb04d4508ae4770929ed188af [2022-12-14 07:10:46,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:10:46,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:10:46,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:10:46,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:10:46,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:10:46,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1174ad86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46, skipping insertion in model container [2022-12-14 07:10:46,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:10:46,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:10:46,322 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_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2022-12-14 07:10:46,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:10:46,344 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:10:46,391 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_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/sv-benchmarks/c/pthread/stateful01-1.i[30826,30839] [2022-12-14 07:10:46,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:10:46,414 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:10:46,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46 WrapperNode [2022-12-14 07:10:46,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:10:46,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:10:46,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:10:46,415 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:10:46,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,445 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 90 [2022-12-14 07:10:46,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:10:46,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:10:46,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:10:46,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:10:46,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,462 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:10:46,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:10:46,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:10:46,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:10:46,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (1/1) ... [2022-12-14 07:10:46,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:10:46,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:10:46,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:10:46,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:10:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:10:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 07:10:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 07:10:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 07:10:46,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:10:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:10:46,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:10:46,519 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 07:10:46,611 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:10:46,613 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:10:46,845 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:10:46,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:10:46,854 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:10:46,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:10:46 BoogieIcfgContainer [2022-12-14 07:10:46,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:10:46,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:10:46,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:10:46,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:10:46,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:10:46" (1/3) ... [2022-12-14 07:10:46,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42139738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:10:46, skipping insertion in model container [2022-12-14 07:10:46,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:10:46" (2/3) ... [2022-12-14 07:10:46,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42139738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:10:46, skipping insertion in model container [2022-12-14 07:10:46,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:10:46" (3/3) ... [2022-12-14 07:10:46,865 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-12-14 07:10:46,872 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 07:10:46,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:10:46,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-12-14 07:10:46,881 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:10:46,951 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 07:10:46,985 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:10:46,998 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 158 transitions, 332 flow [2022-12-14 07:10:47,000 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 158 transitions, 332 flow [2022-12-14 07:10:47,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 158 transitions, 332 flow [2022-12-14 07:10:47,047 INFO L130 PetriNetUnfolder]: 2/156 cut-off events. [2022-12-14 07:10:47,047 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 07:10:47,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 156 events. 2/156 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 148 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 62. Up to 2 conditions per place. [2022-12-14 07:10:47,052 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2022-12-14 07:10:50,463 INFO L134 LiptonReduction]: Checked pairs total: 17104 [2022-12-14 07:10:50,463 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-12-14 07:10:50,468 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 55 transitions, 126 flow [2022-12-14 07:10:50,515 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1303 states, 1245 states have (on average 2.628112449799197) internal successors, (3272), 1302 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:50,528 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:10:50,533 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;@3eeef40e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:10:50,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-12-14 07:10:50,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 1303 states, 1245 states have (on average 2.628112449799197) internal successors, (3272), 1302 states have internal predecessors, (3272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:50,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 07:10:50,540 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:50,540 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 07:10:50,541 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:50,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:50,544 INFO L85 PathProgramCache]: Analyzing trace with hash 543, now seen corresponding path program 1 times [2022-12-14 07:10:50,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:50,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929462029] [2022-12-14 07:10:50,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:50,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:50,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:50,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:50,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929462029] [2022-12-14 07:10:50,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929462029] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:50,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:50,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 07:10:50,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844095165] [2022-12-14 07:10:50,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:50,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 07:10:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:50,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 07:10:50,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 07:10:50,652 INFO L87 Difference]: Start difference. First operand has 1303 states, 1245 states have (on average 2.628112449799197) internal successors, (3272), 1302 states have internal predecessors, (3272), 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) [2022-12-14 07:10:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:50,714 INFO L93 Difference]: Finished difference Result 881 states and 2074 transitions. [2022-12-14 07:10:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 07:10:50,717 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 [2022-12-14 07:10:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:50,733 INFO L225 Difference]: With dead ends: 881 [2022-12-14 07:10:50,733 INFO L226 Difference]: Without dead ends: 868 [2022-12-14 07:10:50,734 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 [2022-12-14 07:10:50,737 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:50,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:50,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2022-12-14 07:10:50,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2022-12-14 07:10:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 844 states have (on average 2.4229857819905214) internal successors, (2045), 867 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 2045 transitions. [2022-12-14 07:10:50,798 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 2045 transitions. Word has length 1 [2022-12-14 07:10:50,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:50,799 INFO L495 AbstractCegarLoop]: Abstraction has 868 states and 2045 transitions. [2022-12-14 07:10:50,799 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) [2022-12-14 07:10:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 2045 transitions. [2022-12-14 07:10:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:10:50,799 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:50,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:10:50,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:10:50,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:50,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash 516134703, now seen corresponding path program 1 times [2022-12-14 07:10:50,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:50,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351486058] [2022-12-14 07:10:50,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:50,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:50,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:50,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351486058] [2022-12-14 07:10:50,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351486058] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:50,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:50,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:10:50,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368553332] [2022-12-14 07:10:50,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:50,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:50,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:50,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:50,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:50,879 INFO L87 Difference]: Start difference. First operand 868 states and 2045 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) [2022-12-14 07:10:50,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:50,941 INFO L93 Difference]: Finished difference Result 1036 states and 2449 transitions. [2022-12-14 07:10:50,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:50,942 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 [2022-12-14 07:10:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:50,946 INFO L225 Difference]: With dead ends: 1036 [2022-12-14 07:10:50,946 INFO L226 Difference]: Without dead ends: 1036 [2022-12-14 07:10:50,946 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 [2022-12-14 07:10:50,947 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 37 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:50,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 50 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-12-14 07:10:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 898. [2022-12-14 07:10:50,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 875 states have (on average 2.418285714285714) internal successors, (2116), 897 states have internal predecessors, (2116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:50,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 2116 transitions. [2022-12-14 07:10:50,971 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 2116 transitions. Word has length 5 [2022-12-14 07:10:50,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:50,971 INFO L495 AbstractCegarLoop]: Abstraction has 898 states and 2116 transitions. [2022-12-14 07:10:50,971 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) [2022-12-14 07:10:50,971 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 2116 transitions. [2022-12-14 07:10:50,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:10:50,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:50,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:50,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:10:50,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:50,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:50,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1482626603, now seen corresponding path program 1 times [2022-12-14 07:10:50,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:50,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764846956] [2022-12-14 07:10:50,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:50,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:51,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:51,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:51,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764846956] [2022-12-14 07:10:51,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764846956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:51,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:51,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:10:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12998214] [2022-12-14 07:10:51,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:51,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:51,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:51,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,026 INFO L87 Difference]: Start difference. First operand 898 states and 2116 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) [2022-12-14 07:10:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:51,087 INFO L93 Difference]: Finished difference Result 950 states and 2243 transitions. [2022-12-14 07:10:51,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:51,087 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 [2022-12-14 07:10:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:51,090 INFO L225 Difference]: With dead ends: 950 [2022-12-14 07:10:51,090 INFO L226 Difference]: Without dead ends: 950 [2022-12-14 07:10:51,090 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 [2022-12-14 07:10:51,091 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:51,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 45 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-12-14 07:10:51,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 918. [2022-12-14 07:10:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 2.416294642857143) internal successors, (2165), 917 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 2165 transitions. [2022-12-14 07:10:51,109 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 2165 transitions. Word has length 9 [2022-12-14 07:10:51,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:51,109 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 2165 transitions. [2022-12-14 07:10:51,109 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) [2022-12-14 07:10:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 2165 transitions. [2022-12-14 07:10:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:10:51,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:51,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:51,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:10:51,110 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:51,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:51,111 INFO L85 PathProgramCache]: Analyzing trace with hash 9314569, now seen corresponding path program 1 times [2022-12-14 07:10:51,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:51,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559825335] [2022-12-14 07:10:51,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:51,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:51,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:51,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559825335] [2022-12-14 07:10:51,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559825335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:51,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:51,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:10:51,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459074470] [2022-12-14 07:10:51,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:51,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:51,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:51,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,152 INFO L87 Difference]: Start difference. First operand 918 states and 2165 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-12-14 07:10:51,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:51,202 INFO L93 Difference]: Finished difference Result 938 states and 2212 transitions. [2022-12-14 07:10:51,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:51,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-12-14 07:10:51,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:51,206 INFO L225 Difference]: With dead ends: 938 [2022-12-14 07:10:51,206 INFO L226 Difference]: Without dead ends: 938 [2022-12-14 07:10:51,206 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 [2022-12-14 07:10:51,207 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 21 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:51,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 46 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2022-12-14 07:10:51,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2022-12-14 07:10:51,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 918 states have (on average 2.4095860566448803) internal successors, (2212), 937 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2212 transitions. [2022-12-14 07:10:51,224 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2212 transitions. Word has length 10 [2022-12-14 07:10:51,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:51,224 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 2212 transitions. [2022-12-14 07:10:51,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-12-14 07:10:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2212 transitions. [2022-12-14 07:10:51,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 07:10:51,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:51,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:51,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:10:51,226 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:51,226 INFO L85 PathProgramCache]: Analyzing trace with hash -931369557, now seen corresponding path program 1 times [2022-12-14 07:10:51,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:51,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542563600] [2022-12-14 07:10:51,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:51,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:51,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:51,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:51,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542563600] [2022-12-14 07:10:51,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542563600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:51,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:51,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:10:51,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795988063] [2022-12-14 07:10:51,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:51,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:51,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:51,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,313 INFO L87 Difference]: Start difference. First operand 938 states and 2212 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:51,346 INFO L93 Difference]: Finished difference Result 262 states and 426 transitions. [2022-12-14 07:10:51,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:51,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-12-14 07:10:51,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:51,348 INFO L225 Difference]: With dead ends: 262 [2022-12-14 07:10:51,348 INFO L226 Difference]: Without dead ends: 262 [2022-12-14 07:10:51,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,349 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:51,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 18 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-12-14 07:10:51,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2022-12-14 07:10:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 250 states have (on average 1.704) internal successors, (426), 261 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 426 transitions. [2022-12-14 07:10:51,356 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 426 transitions. Word has length 12 [2022-12-14 07:10:51,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:51,356 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 426 transitions. [2022-12-14 07:10:51,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,357 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 426 transitions. [2022-12-14 07:10:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:10:51,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:51,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:10:51,358 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:51,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1316050549, now seen corresponding path program 1 times [2022-12-14 07:10:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155404871] [2022-12-14 07:10:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:51,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:51,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:51,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155404871] [2022-12-14 07:10:51,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155404871] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:51,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:51,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:10:51,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120812511] [2022-12-14 07:10:51,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:51,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:51,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,397 INFO L87 Difference]: Start difference. First operand 262 states and 426 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:51,433 INFO L93 Difference]: Finished difference Result 246 states and 400 transitions. [2022-12-14 07:10:51,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:51,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 07:10:51,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:51,435 INFO L225 Difference]: With dead ends: 246 [2022-12-14 07:10:51,435 INFO L226 Difference]: Without dead ends: 246 [2022-12-14 07:10:51,435 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 [2022-12-14 07:10:51,436 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:51,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:51,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-12-14 07:10:51,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-12-14 07:10:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 240 states have (on average 1.6666666666666667) internal successors, (400), 245 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 400 transitions. [2022-12-14 07:10:51,448 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 400 transitions. Word has length 13 [2022-12-14 07:10:51,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:51,448 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 400 transitions. [2022-12-14 07:10:51,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,448 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 400 transitions. [2022-12-14 07:10:51,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:10:51,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:51,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:51,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:10:51,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash 334576500, now seen corresponding path program 1 times [2022-12-14 07:10:51,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:51,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912031365] [2022-12-14 07:10:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:51,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:51,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:51,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912031365] [2022-12-14 07:10:51,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912031365] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:51,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:51,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:10:51,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797859528] [2022-12-14 07:10:51,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:51,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:51,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:51,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:51,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,477 INFO L87 Difference]: Start difference. First operand 246 states and 400 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:51,515 INFO L93 Difference]: Finished difference Result 238 states and 387 transitions. [2022-12-14 07:10:51,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:51,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-12-14 07:10:51,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:51,516 INFO L225 Difference]: With dead ends: 238 [2022-12-14 07:10:51,516 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 07:10:51,516 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 [2022-12-14 07:10:51,517 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:51,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:51,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 07:10:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-12-14 07:10:51,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.6114285714285714) internal successors, (282), 177 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 282 transitions. [2022-12-14 07:10:51,522 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 282 transitions. Word has length 17 [2022-12-14 07:10:51,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:51,523 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 282 transitions. [2022-12-14 07:10:51,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,523 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 282 transitions. [2022-12-14 07:10:51,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 07:10:51,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:10:51,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:51,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 07:10:51,524 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-14 07:10:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:10:51,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1895191274, now seen corresponding path program 1 times [2022-12-14 07:10:51,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:10:51,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745495738] [2022-12-14 07:10:51,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:10:51,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:10:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:10:51,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:10:51,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:10:51,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745495738] [2022-12-14 07:10:51,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745495738] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:10:51,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:10:51,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:10:51,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931319390] [2022-12-14 07:10:51,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:10:51,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:10:51,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:10:51,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:10:51,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:10:51,558 INFO L87 Difference]: Start difference. First operand 178 states and 282 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:10:51,587 INFO L93 Difference]: Finished difference Result 170 states and 269 transitions. [2022-12-14 07:10:51,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:10:51,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-12-14 07:10:51,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:10:51,587 INFO L225 Difference]: With dead ends: 170 [2022-12-14 07:10:51,587 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:10:51,588 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 [2022-12-14 07:10:51,588 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 07:10:51,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 07:10:51,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:10:51,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:10:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:10:51,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-12-14 07:10:51,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:10:51,590 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:10:51,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:10:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:10:51,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:10:51,592 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-12-14 07:10:51,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-12-14 07:10:51,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-12-14 07:10:51,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-12-14 07:10:51,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-12-14 07:10:51,593 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-12-14 07:10:51,594 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-12-14 07:10:51,595 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-12-14 07:10:51,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 07:10:51,597 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:10:51,601 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 07:10:51,601 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:10:51,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:10:51 BasicIcfg [2022-12-14 07:10:51,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:10:51,604 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:10:51,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:10:51,604 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:10:51,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:10:46" (3/4) ... [2022-12-14 07:10:51,606 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:10:51,610 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-14 07:10:51,610 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-14 07:10:51,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-12-14 07:10:51,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 07:10:51,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 07:10:51,613 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:10:51,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:10:51,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:10:51,635 INFO L158 Benchmark]: Toolchain (without parser) took 5554.14ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 81.7MB in the end (delta: -23.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,636 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:10:51,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.17ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 115.9MB in the end (delta: -58.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.40ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 113.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,636 INFO L158 Benchmark]: Boogie Preprocessor took 19.26ms. Allocated memory is still 148.9MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,636 INFO L158 Benchmark]: RCFGBuilder took 390.80ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 94.2MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,636 INFO L158 Benchmark]: TraceAbstraction took 4744.03ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 84.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,637 INFO L158 Benchmark]: Witness Printer took 31.45ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 81.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:10:51,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.17ms. Allocated memory was 109.1MB in the beginning and 148.9MB in the end (delta: 39.8MB). Free memory was 57.8MB in the beginning and 115.9MB in the end (delta: -58.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.40ms. Allocated memory is still 148.9MB. Free memory was 115.9MB in the beginning and 113.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.26ms. Allocated memory is still 148.9MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.80ms. Allocated memory is still 148.9MB. Free memory was 111.7MB in the beginning and 94.2MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4744.03ms. Allocated memory is still 148.9MB. Free memory was 94.2MB in the beginning and 84.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 31.45ms. Allocated memory is still 148.9MB. Free memory was 84.8MB in the beginning and 81.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 163 PlacesBefore, 62 PlacesAfterwards, 158 TransitionsBefore, 55 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 7 FixpointIterations, 79 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 129 TotalNumberOfCompositions, 17104 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7181, independent: 6630, independent conditional: 0, independent unconditional: 6630, dependent: 551, dependent conditional: 0, dependent unconditional: 551, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2476, independent: 2392, independent conditional: 0, independent unconditional: 2392, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2476, independent: 2368, independent conditional: 0, independent unconditional: 2368, dependent: 108, dependent conditional: 0, dependent unconditional: 108, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 108, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 114, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7181, independent: 4238, independent conditional: 0, independent unconditional: 4238, dependent: 467, dependent conditional: 0, dependent unconditional: 467, unknown: 2476, unknown conditional: 0, unknown unconditional: 2476] , Statistics on independence cache: Total cache size (in pairs): 617, Positive cache size: 555, Positive conditional cache size: 0, Positive unconditional cache size: 555, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, 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 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 124 mSDsluCounter, 252 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 70 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 415 IncrementalHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 182 mSDtfsCounter, 415 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1303occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 170 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 07:10:51,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29ee2102-a70e-47a6-8d82-fc6bf20f56d7/bin/utaipan-gh47qXpMRh/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 Result: TRUE