./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/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_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/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_3b3c2759-f02b-45af-b844-2905919870b8/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 a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --- 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 14:33:23,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:33:23,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:33:23,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:33:23,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:33:23,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:33:23,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:33:23,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:33:23,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:33:23,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:33:23,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:33:23,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:33:23,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:33:23,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:33:23,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:33:23,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:33:23,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:33:23,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:33:23,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:33:23,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:33:23,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:33:23,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:33:23,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:33:23,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:33:23,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:33:23,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:33:23,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:33:23,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:33:23,259 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:33:23,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:33:23,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:33:23,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:33:23,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:33:23,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:33:23,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:33:23,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:33:23,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:33:23,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:33:23,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:33:23,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:33:23,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:33:23,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 14:33:23,289 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:33:23,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:33:23,290 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:33:23,290 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:33:23,290 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:33:23,291 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:33:23,291 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:33:23,291 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:33:23,291 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:33:23,291 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:33:23,292 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:33:23,292 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:33:23,292 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:33:23,292 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:33:23,292 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:33:23,293 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:33:23,293 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:33:23,293 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:33:23,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:33:23,294 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:33:23,294 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:33:23,294 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:33:23,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:33:23,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:33:23,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:33:23,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:33:23,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:33:23,295 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 14:33:23,296 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:33:23,296 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:33:23,296 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:33:23,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:33:23,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:33:23,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:33:23,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:33:23,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:33:23,297 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:33:23,297 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:33:23,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:33:23,298 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:33:23,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:33:23,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:33:23,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:33:23,298 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_3b3c2759-f02b-45af-b844-2905919870b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc [2022-12-14 14:33:23,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:33:23,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:33:23,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:33:23,521 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:33:23,521 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:33:23,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2022-12-14 14:33:26,216 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:33:26,401 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:33:26,401 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2022-12-14 14:33:26,410 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/data/834512569/55d38312e70c478eaa66bd5ab5b68814/FLAG187e29bb9 [2022-12-14 14:33:26,421 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/data/834512569/55d38312e70c478eaa66bd5ab5b68814 [2022-12-14 14:33:26,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:33:26,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:33:26,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:33:26,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:33:26,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:33:26,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a972f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26, skipping insertion in model container [2022-12-14 14:33:26,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:33:26,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:33:26,726 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_3b3c2759-f02b-45af-b844-2905919870b8/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30440,30453] [2022-12-14 14:33:26,734 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_3b3c2759-f02b-45af-b844-2905919870b8/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30895,30908] [2022-12-14 14:33:26,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:33:26,752 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:33:26,786 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_3b3c2759-f02b-45af-b844-2905919870b8/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30440,30453] [2022-12-14 14:33:26,790 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_3b3c2759-f02b-45af-b844-2905919870b8/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30895,30908] [2022-12-14 14:33:26,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:33:26,820 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:33:26,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26 WrapperNode [2022-12-14 14:33:26,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:33:26,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:33:26,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:33:26,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:33:26,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,860 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 237 [2022-12-14 14:33:26,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:33:26,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:33:26,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:33:26,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:33:26,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,885 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:33:26,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:33:26,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:33:26,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:33:26,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (1/1) ... [2022-12-14 14:33:26,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:33:26,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:26,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:33:26,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:33:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:33:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-14 14:33:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-14 14:33:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-14 14:33:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-14 14:33:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:33:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 14:33:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:33:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:33:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:33:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:33:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:33:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:33:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:33:26,958 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 14:33:27,069 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:33:27,071 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:33:27,383 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:33:27,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:33:27,390 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 14:33:27,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:33:27 BoogieIcfgContainer [2022-12-14 14:33:27,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:33:27,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:33:27,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:33:27,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:33:27,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:33:26" (1/3) ... [2022-12-14 14:33:27,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edb4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:33:27, skipping insertion in model container [2022-12-14 14:33:27,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:33:26" (2/3) ... [2022-12-14 14:33:27,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edb4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:33:27, skipping insertion in model container [2022-12-14 14:33:27,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:33:27" (3/3) ... [2022-12-14 14:33:27,401 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2022-12-14 14:33:27,409 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:33:27,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:33:27,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2022-12-14 14:33:27,419 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:33:27,511 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-14 14:33:27,546 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:33:27,561 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 278 places, 283 transitions, 582 flow [2022-12-14 14:33:27,564 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 278 places, 283 transitions, 582 flow [2022-12-14 14:33:27,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 278 places, 283 transitions, 582 flow [2022-12-14 14:33:27,671 INFO L130 PetriNetUnfolder]: 12/281 cut-off events. [2022-12-14 14:33:27,671 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-14 14:33:27,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 281 events. 12/281 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 714 event pairs, 0 based on Foata normal form. 0/238 useless extension candidates. Maximal degree in co-relation 190. Up to 2 conditions per place. [2022-12-14 14:33:27,689 INFO L119 LiptonReduction]: Number of co-enabled transitions 20196 [2022-12-14 14:33:40,956 INFO L134 LiptonReduction]: Checked pairs total: 166291 [2022-12-14 14:33:40,957 INFO L136 LiptonReduction]: Total number of compositions: 343 [2022-12-14 14:33:40,962 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 104 transitions, 224 flow [2022-12-14 14:33:41,177 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9655 states, 9330 states have (on average 3.1612004287245443) internal successors, (29494), 9654 states have internal predecessors, (29494), 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 14:33:41,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:33:41,201 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;@27250da3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:33:41,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-12-14 14:33:41,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 9655 states, 9330 states have (on average 3.1612004287245443) internal successors, (29494), 9654 states have internal predecessors, (29494), 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 14:33:41,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:33:41,237 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:41,238 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:33:41,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:41,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:41,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1126, now seen corresponding path program 1 times [2022-12-14 14:33:41,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:41,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812744302] [2022-12-14 14:33:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:41,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:41,351 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 14:33:41,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:41,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812744302] [2022-12-14 14:33:41,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812744302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:41,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:41,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:33:41,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428333657] [2022-12-14 14:33:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:41,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:33:41,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:41,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:33:41,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:33:41,398 INFO L87 Difference]: Start difference. First operand has 9655 states, 9330 states have (on average 3.1612004287245443) internal successors, (29494), 9654 states have internal predecessors, (29494), 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 14:33:41,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:41,542 INFO L93 Difference]: Finished difference Result 6438 states and 19468 transitions. [2022-12-14 14:33:41,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:33:41,544 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 14:33:41,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:41,583 INFO L225 Difference]: With dead ends: 6438 [2022-12-14 14:33:41,583 INFO L226 Difference]: Without dead ends: 6437 [2022-12-14 14:33:41,583 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 14:33:41,585 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:41,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:41,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6437 states. [2022-12-14 14:33:41,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6437 to 6437. [2022-12-14 14:33:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6437 states, 6360 states have (on average 3.0606918238993712) internal successors, (19466), 6436 states have internal predecessors, (19466), 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 14:33:41,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6437 states to 6437 states and 19466 transitions. [2022-12-14 14:33:41,818 INFO L78 Accepts]: Start accepts. Automaton has 6437 states and 19466 transitions. Word has length 1 [2022-12-14 14:33:41,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:41,818 INFO L495 AbstractCegarLoop]: Abstraction has 6437 states and 19466 transitions. [2022-12-14 14:33:41,818 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 14:33:41,819 INFO L276 IsEmpty]: Start isEmpty. Operand 6437 states and 19466 transitions. [2022-12-14 14:33:41,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 14:33:41,819 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:41,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 14:33:41,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:33:41,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:41,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:41,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1305598503, now seen corresponding path program 1 times [2022-12-14 14:33:41,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:41,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216462033] [2022-12-14 14:33:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:41,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:41,906 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 14:33:41,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:41,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216462033] [2022-12-14 14:33:41,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216462033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:41,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:41,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:41,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308651254] [2022-12-14 14:33:41,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:41,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:41,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:41,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:41,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:41,909 INFO L87 Difference]: Start difference. First operand 6437 states and 19466 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:33:42,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:42,112 INFO L93 Difference]: Finished difference Result 11066 states and 33573 transitions. [2022-12-14 14:33:42,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:42,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-14 14:33:42,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:42,219 INFO L225 Difference]: With dead ends: 11066 [2022-12-14 14:33:42,220 INFO L226 Difference]: Without dead ends: 11066 [2022-12-14 14:33:42,220 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 14:33:42,221 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 66 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:42,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 78 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:42,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11066 states. [2022-12-14 14:33:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11066 to 6619. [2022-12-14 14:33:42,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6619 states, 6542 states have (on average 3.0888107612350963) internal successors, (20207), 6618 states have internal predecessors, (20207), 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 14:33:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6619 states to 6619 states and 20207 transitions. [2022-12-14 14:33:42,509 INFO L78 Accepts]: Start accepts. Automaton has 6619 states and 20207 transitions. Word has length 6 [2022-12-14 14:33:42,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:42,509 INFO L495 AbstractCegarLoop]: Abstraction has 6619 states and 20207 transitions. [2022-12-14 14:33:42,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:33:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 6619 states and 20207 transitions. [2022-12-14 14:33:42,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:33:42,510 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:42,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:42,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:33:42,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1112982332, now seen corresponding path program 1 times [2022-12-14 14:33:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:42,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023646363] [2022-12-14 14:33:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:42,597 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 14:33:42,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:42,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023646363] [2022-12-14 14:33:42,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023646363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:42,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:42,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:42,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023990863] [2022-12-14 14:33:42,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:42,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:42,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:42,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:42,600 INFO L87 Difference]: Start difference. First operand 6619 states and 20207 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 14:33:42,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:42,736 INFO L93 Difference]: Finished difference Result 10489 states and 32226 transitions. [2022-12-14 14:33:42,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:42,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-14 14:33:42,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:42,774 INFO L225 Difference]: With dead ends: 10489 [2022-12-14 14:33:42,775 INFO L226 Difference]: Without dead ends: 10489 [2022-12-14 14:33:42,775 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 14:33:42,776 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 63 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:42,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 85 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:42,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10489 states. [2022-12-14 14:33:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10489 to 6834. [2022-12-14 14:33:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6834 states, 6759 states have (on average 3.116733244562805) internal successors, (21066), 6833 states have internal predecessors, (21066), 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 14:33:42,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6834 states to 6834 states and 21066 transitions. [2022-12-14 14:33:42,981 INFO L78 Accepts]: Start accepts. Automaton has 6834 states and 21066 transitions. Word has length 8 [2022-12-14 14:33:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:42,982 INFO L495 AbstractCegarLoop]: Abstraction has 6834 states and 21066 transitions. [2022-12-14 14:33:42,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 14:33:42,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6834 states and 21066 transitions. [2022-12-14 14:33:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:33:42,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:42,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:42,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:33:42,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:42,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:42,984 INFO L85 PathProgramCache]: Analyzing trace with hash -67105431, now seen corresponding path program 1 times [2022-12-14 14:33:42,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:42,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683759118] [2022-12-14 14:33:42,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:42,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:43,359 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 14:33:43,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:43,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683759118] [2022-12-14 14:33:43,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683759118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:43,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:43,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:33:43,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552538021] [2022-12-14 14:33:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:43,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:33:43,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:33:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:33:43,362 INFO L87 Difference]: Start difference. First operand 6834 states and 21066 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 14:33:43,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:43,851 INFO L93 Difference]: Finished difference Result 10990 states and 33564 transitions. [2022-12-14 14:33:43,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:33:43,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 14:33:43,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:43,886 INFO L225 Difference]: With dead ends: 10990 [2022-12-14 14:33:43,886 INFO L226 Difference]: Without dead ends: 10990 [2022-12-14 14:33:43,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:33:43,887 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 242 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:43,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 235 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:33:43,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10990 states. [2022-12-14 14:33:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10990 to 10010. [2022-12-14 14:33:44,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10010 states, 9935 states have (on average 3.158429793658782) internal successors, (31379), 10009 states have internal predecessors, (31379), 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 14:33:44,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10010 states to 10010 states and 31379 transitions. [2022-12-14 14:33:44,098 INFO L78 Accepts]: Start accepts. Automaton has 10010 states and 31379 transitions. Word has length 10 [2022-12-14 14:33:44,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:44,098 INFO L495 AbstractCegarLoop]: Abstraction has 10010 states and 31379 transitions. [2022-12-14 14:33:44,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 14:33:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 10010 states and 31379 transitions. [2022-12-14 14:33:44,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:33:44,099 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:44,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:44,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:33:44,099 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:44,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:44,100 INFO L85 PathProgramCache]: Analyzing trace with hash 129197195, now seen corresponding path program 1 times [2022-12-14 14:33:44,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:44,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010140098] [2022-12-14 14:33:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:44,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:44,127 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 14:33:44,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:44,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010140098] [2022-12-14 14:33:44,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010140098] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:44,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:44,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:44,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185041411] [2022-12-14 14:33:44,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:44,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:44,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:44,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:44,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:44,129 INFO L87 Difference]: Start difference. First operand 10010 states and 31379 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 14:33:44,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:44,270 INFO L93 Difference]: Finished difference Result 10771 states and 33376 transitions. [2022-12-14 14:33:44,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:44,271 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 14:33:44,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:44,296 INFO L225 Difference]: With dead ends: 10771 [2022-12-14 14:33:44,296 INFO L226 Difference]: Without dead ends: 10771 [2022-12-14 14:33:44,296 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 14:33:44,297 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 71 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:44,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 49 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:44,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10771 states. [2022-12-14 14:33:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10771 to 10015. [2022-12-14 14:33:44,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10015 states, 9942 states have (on average 3.1244216455441562) internal successors, (31063), 10014 states have internal predecessors, (31063), 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 14:33:44,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10015 states to 10015 states and 31063 transitions. [2022-12-14 14:33:44,566 INFO L78 Accepts]: Start accepts. Automaton has 10015 states and 31063 transitions. Word has length 10 [2022-12-14 14:33:44,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:44,567 INFO L495 AbstractCegarLoop]: Abstraction has 10015 states and 31063 transitions. [2022-12-14 14:33:44,567 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 14:33:44,567 INFO L276 IsEmpty]: Start isEmpty. Operand 10015 states and 31063 transitions. [2022-12-14 14:33:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:33:44,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:44,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:44,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:33:44,570 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:44,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1270332815, now seen corresponding path program 1 times [2022-12-14 14:33:44,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:44,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358465740] [2022-12-14 14:33:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:44,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:44,612 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 14:33:44,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:44,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358465740] [2022-12-14 14:33:44,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358465740] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:44,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:44,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:44,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233977789] [2022-12-14 14:33:44,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:44,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:44,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:44,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:44,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:44,614 INFO L87 Difference]: Start difference. First operand 10015 states and 31063 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 14:33:44,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:44,772 INFO L93 Difference]: Finished difference Result 10493 states and 32531 transitions. [2022-12-14 14:33:44,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:44,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-12-14 14:33:44,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:44,802 INFO L225 Difference]: With dead ends: 10493 [2022-12-14 14:33:44,802 INFO L226 Difference]: Without dead ends: 10493 [2022-12-14 14:33:44,802 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 14:33:44,803 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:44,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 73 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10493 states. [2022-12-14 14:33:44,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10493 to 10229. [2022-12-14 14:33:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10229 states, 10160 states have (on average 3.1225393700787403) internal successors, (31725), 10228 states have internal predecessors, (31725), 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 14:33:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 31725 transitions. [2022-12-14 14:33:45,040 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 31725 transitions. Word has length 11 [2022-12-14 14:33:45,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:45,040 INFO L495 AbstractCegarLoop]: Abstraction has 10229 states and 31725 transitions. [2022-12-14 14:33:45,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 14:33:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 31725 transitions. [2022-12-14 14:33:45,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 14:33:45,041 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:45,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:45,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:33:45,042 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:45,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:45,042 INFO L85 PathProgramCache]: Analyzing trace with hash 725879088, now seen corresponding path program 1 times [2022-12-14 14:33:45,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:45,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246406853] [2022-12-14 14:33:45,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:45,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:45,154 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 14:33:45,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:45,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246406853] [2022-12-14 14:33:45,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246406853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:45,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:45,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:45,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450183143] [2022-12-14 14:33:45,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:45,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:45,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:45,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:45,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:45,156 INFO L87 Difference]: Start difference. First operand 10229 states and 31725 transitions. Second operand has 3 states, 2 states have (on average 6.0) 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 14:33:45,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:45,334 INFO L93 Difference]: Finished difference Result 10711 states and 33181 transitions. [2022-12-14 14:33:45,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:45,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) 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 14:33:45,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:45,357 INFO L225 Difference]: With dead ends: 10711 [2022-12-14 14:33:45,357 INFO L226 Difference]: Without dead ends: 10711 [2022-12-14 14:33:45,357 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 14:33:45,357 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:45,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 59 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:45,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10711 states. [2022-12-14 14:33:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10711 to 10411. [2022-12-14 14:33:45,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10411 states, 10342 states have (on average 3.120382904660607) internal successors, (32271), 10410 states have internal predecessors, (32271), 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 14:33:45,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10411 states to 10411 states and 32271 transitions. [2022-12-14 14:33:45,569 INFO L78 Accepts]: Start accepts. Automaton has 10411 states and 32271 transitions. Word has length 12 [2022-12-14 14:33:45,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:45,569 INFO L495 AbstractCegarLoop]: Abstraction has 10411 states and 32271 transitions. [2022-12-14 14:33:45,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) 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 14:33:45,569 INFO L276 IsEmpty]: Start isEmpty. Operand 10411 states and 32271 transitions. [2022-12-14 14:33:45,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:33:45,570 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:45,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:45,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:33:45,571 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:45,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1528878100, now seen corresponding path program 1 times [2022-12-14 14:33:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:45,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091590888] [2022-12-14 14:33:45,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:45,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:45,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:45,594 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 14:33:45,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:45,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091590888] [2022-12-14 14:33:45,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091590888] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:45,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:45,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:45,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14353759] [2022-12-14 14:33:45,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:45,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:45,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:45,596 INFO L87 Difference]: Start difference. First operand 10411 states and 32271 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14:33:45,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:45,764 INFO L93 Difference]: Finished difference Result 10613 states and 32886 transitions. [2022-12-14 14:33:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:45,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-12-14 14:33:45,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:45,796 INFO L225 Difference]: With dead ends: 10613 [2022-12-14 14:33:45,796 INFO L226 Difference]: Without dead ends: 10613 [2022-12-14 14:33:45,796 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 14:33:45,797 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 34 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:45,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 75 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10613 states. [2022-12-14 14:33:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10613 to 10613. [2022-12-14 14:33:46,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10613 states, 10548 states have (on average 3.1177474402730376) internal successors, (32886), 10612 states have internal predecessors, (32886), 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 14:33:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10613 states to 10613 states and 32886 transitions. [2022-12-14 14:33:46,073 INFO L78 Accepts]: Start accepts. Automaton has 10613 states and 32886 transitions. Word has length 14 [2022-12-14 14:33:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:46,073 INFO L495 AbstractCegarLoop]: Abstraction has 10613 states and 32886 transitions. [2022-12-14 14:33:46,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 14:33:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 10613 states and 32886 transitions. [2022-12-14 14:33:46,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:33:46,076 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:46,076 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:46,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:33:46,076 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:46,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:46,077 INFO L85 PathProgramCache]: Analyzing trace with hash -2137881503, now seen corresponding path program 1 times [2022-12-14 14:33:46,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:46,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408961183] [2022-12-14 14:33:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:46,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:46,115 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 14:33:46,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:46,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408961183] [2022-12-14 14:33:46,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408961183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:46,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:46,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:33:46,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348476128] [2022-12-14 14:33:46,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:46,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:46,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:46,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:46,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:46,117 INFO L87 Difference]: Start difference. First operand 10613 states and 32886 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14:33:46,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:46,262 INFO L93 Difference]: Finished difference Result 11031 states and 34134 transitions. [2022-12-14 14:33:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:46,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2022-12-14 14:33:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:46,290 INFO L225 Difference]: With dead ends: 11031 [2022-12-14 14:33:46,290 INFO L226 Difference]: Without dead ends: 11031 [2022-12-14 14:33:46,290 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 14:33:46,291 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 47 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:46,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 91 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:46,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11031 states. [2022-12-14 14:33:46,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11031 to 11031. [2022-12-14 14:33:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11031 states, 10966 states have (on average 3.112712018967718) internal successors, (34134), 11030 states have internal predecessors, (34134), 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 14:33:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11031 states to 11031 states and 34134 transitions. [2022-12-14 14:33:46,536 INFO L78 Accepts]: Start accepts. Automaton has 11031 states and 34134 transitions. Word has length 14 [2022-12-14 14:33:46,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:46,536 INFO L495 AbstractCegarLoop]: Abstraction has 11031 states and 34134 transitions. [2022-12-14 14:33:46,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14:33:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 11031 states and 34134 transitions. [2022-12-14 14:33:46,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 14:33:46,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:46,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:46,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:33:46,539 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:46,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:46,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1851504238, now seen corresponding path program 1 times [2022-12-14 14:33:46,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:46,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725129216] [2022-12-14 14:33:46,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:46,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:46,568 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 14:33:46,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:46,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725129216] [2022-12-14 14:33:46,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725129216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:46,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:46,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:46,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753298729] [2022-12-14 14:33:46,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:46,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:46,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:46,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:46,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:46,570 INFO L87 Difference]: Start difference. First operand 11031 states and 34134 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 14:33:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:46,730 INFO L93 Difference]: Finished difference Result 11267 states and 34827 transitions. [2022-12-14 14:33:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-12-14 14:33:46,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:46,793 INFO L225 Difference]: With dead ends: 11267 [2022-12-14 14:33:46,793 INFO L226 Difference]: Without dead ends: 11267 [2022-12-14 14:33:46,793 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 14:33:46,794 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 46 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:46,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 85 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11267 states. [2022-12-14 14:33:46,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11267 to 11267. [2022-12-14 14:33:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11267 states, 11208 states have (on average 3.107334047109208) internal successors, (34827), 11266 states have internal predecessors, (34827), 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 14:33:46,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11267 states to 11267 states and 34827 transitions. [2022-12-14 14:33:46,991 INFO L78 Accepts]: Start accepts. Automaton has 11267 states and 34827 transitions. Word has length 15 [2022-12-14 14:33:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:46,991 INFO L495 AbstractCegarLoop]: Abstraction has 11267 states and 34827 transitions. [2022-12-14 14:33:46,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 14:33:46,992 INFO L276 IsEmpty]: Start isEmpty. Operand 11267 states and 34827 transitions. [2022-12-14 14:33:46,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 14:33:46,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:46,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:46,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:33:46,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:46,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:46,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1668401737, now seen corresponding path program 1 times [2022-12-14 14:33:46,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:46,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054769992] [2022-12-14 14:33:46,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:46,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:47,071 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 14:33:47,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:47,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054769992] [2022-12-14 14:33:47,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054769992] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:47,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:47,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:47,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714688951] [2022-12-14 14:33:47,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:47,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:47,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:47,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:47,073 INFO L87 Difference]: Start difference. First operand 11267 states and 34827 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 14:33:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:47,347 INFO L93 Difference]: Finished difference Result 20400 states and 63298 transitions. [2022-12-14 14:33:47,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:47,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2022-12-14 14:33:47,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:47,396 INFO L225 Difference]: With dead ends: 20400 [2022-12-14 14:33:47,397 INFO L226 Difference]: Without dead ends: 20400 [2022-12-14 14:33:47,397 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 14:33:47,397 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 61 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:47,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 72 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:33:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20400 states. [2022-12-14 14:33:47,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20400 to 11507. [2022-12-14 14:33:47,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11507 states, 11454 states have (on average 3.102147721320063) internal successors, (35532), 11506 states have internal predecessors, (35532), 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 14:33:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11507 states to 11507 states and 35532 transitions. [2022-12-14 14:33:47,713 INFO L78 Accepts]: Start accepts. Automaton has 11507 states and 35532 transitions. Word has length 15 [2022-12-14 14:33:47,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:47,713 INFO L495 AbstractCegarLoop]: Abstraction has 11507 states and 35532 transitions. [2022-12-14 14:33:47,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 14:33:47,713 INFO L276 IsEmpty]: Start isEmpty. Operand 11507 states and 35532 transitions. [2022-12-14 14:33:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 14:33:47,714 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:47,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:47,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:33:47,715 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:47,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:47,715 INFO L85 PathProgramCache]: Analyzing trace with hash -564656744, now seen corresponding path program 1 times [2022-12-14 14:33:47,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:47,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105272643] [2022-12-14 14:33:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:47,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:47,906 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 14:33:47,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:47,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105272643] [2022-12-14 14:33:47,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105272643] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:47,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:47,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:33:47,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232107991] [2022-12-14 14:33:47,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:47,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:33:47,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:47,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:33:47,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:33:47,908 INFO L87 Difference]: Start difference. First operand 11507 states and 35532 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 14:33:48,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:48,179 INFO L93 Difference]: Finished difference Result 11867 states and 36642 transitions. [2022-12-14 14:33:48,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:33:48,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-12-14 14:33:48,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:48,215 INFO L225 Difference]: With dead ends: 11867 [2022-12-14 14:33:48,215 INFO L226 Difference]: Without dead ends: 11867 [2022-12-14 14:33:48,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:33:48,216 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 101 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:48,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 69 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:33:48,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11867 states. [2022-12-14 14:33:48,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11867 to 11475. [2022-12-14 14:33:48,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11475 states, 11430 states have (on average 3.1027121609798773) internal successors, (35464), 11474 states have internal predecessors, (35464), 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 14:33:48,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11475 states to 11475 states and 35464 transitions. [2022-12-14 14:33:48,417 INFO L78 Accepts]: Start accepts. Automaton has 11475 states and 35464 transitions. Word has length 16 [2022-12-14 14:33:48,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:48,417 INFO L495 AbstractCegarLoop]: Abstraction has 11475 states and 35464 transitions. [2022-12-14 14:33:48,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 14:33:48,417 INFO L276 IsEmpty]: Start isEmpty. Operand 11475 states and 35464 transitions. [2022-12-14 14:33:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:33:48,421 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:48,421 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 14:33:48,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:33:48,422 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash 498410519, now seen corresponding path program 1 times [2022-12-14 14:33:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:48,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330963022] [2022-12-14 14:33:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:48,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:48,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:33:48,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382308393] [2022-12-14 14:33:48,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:48,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:48,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:48,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:33:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:48,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:33:48,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:48,533 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 14:33:48,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:33:48,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:48,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330963022] [2022-12-14 14:33:48,534 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:33:48,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382308393] [2022-12-14 14:33:48,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382308393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:48,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:48,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:48,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660097339] [2022-12-14 14:33:48,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:48,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:48,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:48,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:48,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:48,535 INFO L87 Difference]: Start difference. First operand 11475 states and 35464 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 14:33:48,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:48,661 INFO L93 Difference]: Finished difference Result 11605 states and 35869 transitions. [2022-12-14 14:33:48,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:48,662 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 14:33:48,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:48,687 INFO L225 Difference]: With dead ends: 11605 [2022-12-14 14:33:48,687 INFO L226 Difference]: Without dead ends: 11605 [2022-12-14 14:33:48,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 14:33:48,688 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 36 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:48,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 77 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:48,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11605 states. [2022-12-14 14:33:48,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11605 to 11605. [2022-12-14 14:33:48,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11605 states, 11568 states have (on average 3.1007088520055324) internal successors, (35869), 11604 states have internal predecessors, (35869), 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 14:33:48,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11605 states to 11605 states and 35869 transitions. [2022-12-14 14:33:48,944 INFO L78 Accepts]: Start accepts. Automaton has 11605 states and 35869 transitions. Word has length 17 [2022-12-14 14:33:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:48,944 INFO L495 AbstractCegarLoop]: Abstraction has 11605 states and 35869 transitions. [2022-12-14 14:33:48,944 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 14:33:48,944 INFO L276 IsEmpty]: Start isEmpty. Operand 11605 states and 35869 transitions. [2022-12-14 14:33:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 14:33:48,947 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:48,947 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 14:33:48,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:33:49,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:49,149 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:49,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash 130110065, now seen corresponding path program 1 times [2022-12-14 14:33:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:49,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016324550] [2022-12-14 14:33:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:49,213 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 14:33:49,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:49,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016324550] [2022-12-14 14:33:49,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016324550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:49,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:49,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:33:49,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843028586] [2022-12-14 14:33:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:49,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:49,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:49,214 INFO L87 Difference]: Start difference. First operand 11605 states and 35869 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) 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 14:33:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:49,407 INFO L93 Difference]: Finished difference Result 20055 states and 61829 transitions. [2022-12-14 14:33:49,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) 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 14:33:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:49,455 INFO L225 Difference]: With dead ends: 20055 [2022-12-14 14:33:49,456 INFO L226 Difference]: Without dead ends: 20055 [2022-12-14 14:33:49,456 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 14:33:49,456 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 67 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:49,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 80 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20055 states. [2022-12-14 14:33:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20055 to 11761. [2022-12-14 14:33:49,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11761 states, 11724 states have (on average 3.0991129307403615) internal successors, (36334), 11760 states have internal predecessors, (36334), 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 14:33:49,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11761 states to 11761 states and 36334 transitions. [2022-12-14 14:33:49,706 INFO L78 Accepts]: Start accepts. Automaton has 11761 states and 36334 transitions. Word has length 17 [2022-12-14 14:33:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:49,706 INFO L495 AbstractCegarLoop]: Abstraction has 11761 states and 36334 transitions. [2022-12-14 14:33:49,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) 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 14:33:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 11761 states and 36334 transitions. [2022-12-14 14:33:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 14:33:49,708 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:49,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:49,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 14:33:49,708 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2104629881, now seen corresponding path program 1 times [2022-12-14 14:33:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003408976] [2022-12-14 14:33:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:49,730 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 14:33:49,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:49,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003408976] [2022-12-14 14:33:49,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003408976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:49,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:49,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:33:49,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135494813] [2022-12-14 14:33:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:49,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:49,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:49,732 INFO L87 Difference]: Start difference. First operand 11761 states and 36334 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 14:33:49,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:49,876 INFO L93 Difference]: Finished difference Result 12217 states and 37676 transitions. [2022-12-14 14:33:49,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-12-14 14:33:49,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:49,914 INFO L225 Difference]: With dead ends: 12217 [2022-12-14 14:33:49,914 INFO L226 Difference]: Without dead ends: 12175 [2022-12-14 14:33:49,914 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 14:33:49,915 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 46 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:49,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 76 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:49,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12175 states. [2022-12-14 14:33:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12175 to 11870. [2022-12-14 14:33:50,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11870 states, 11843 states have (on average 3.0960905176053366) internal successors, (36667), 11869 states have internal predecessors, (36667), 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 14:33:50,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11870 states to 11870 states and 36667 transitions. [2022-12-14 14:33:50,174 INFO L78 Accepts]: Start accepts. Automaton has 11870 states and 36667 transitions. Word has length 18 [2022-12-14 14:33:50,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:50,174 INFO L495 AbstractCegarLoop]: Abstraction has 11870 states and 36667 transitions. [2022-12-14 14:33:50,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 14:33:50,174 INFO L276 IsEmpty]: Start isEmpty. Operand 11870 states and 36667 transitions. [2022-12-14 14:33:50,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 14:33:50,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:50,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:50,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 14:33:50,177 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:50,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1611132401, now seen corresponding path program 1 times [2022-12-14 14:33:50,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:50,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687143127] [2022-12-14 14:33:50,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:50,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:50,498 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 14:33:50,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:50,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687143127] [2022-12-14 14:33:50,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687143127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:50,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:50,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 14:33:50,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197322549] [2022-12-14 14:33:50,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:50,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 14:33:50,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:50,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 14:33:50,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:33:50,501 INFO L87 Difference]: Start difference. First operand 11870 states and 36667 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 14:33:51,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:51,124 INFO L93 Difference]: Finished difference Result 10924 states and 33644 transitions. [2022-12-14 14:33:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:33:51,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2022-12-14 14:33:51,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:51,158 INFO L225 Difference]: With dead ends: 10924 [2022-12-14 14:33:51,158 INFO L226 Difference]: Without dead ends: 10924 [2022-12-14 14:33:51,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:33:51,158 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 303 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:51,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 285 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:33:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10924 states. [2022-12-14 14:33:51,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10924 to 7140. [2022-12-14 14:33:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7140 states, 7124 states have (on average 3.025266704098821) internal successors, (21552), 7139 states have internal predecessors, (21552), 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 14:33:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 21552 transitions. [2022-12-14 14:33:51,353 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 21552 transitions. Word has length 19 [2022-12-14 14:33:51,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:51,353 INFO L495 AbstractCegarLoop]: Abstraction has 7140 states and 21552 transitions. [2022-12-14 14:33:51,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 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 14:33:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 21552 transitions. [2022-12-14 14:33:51,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 14:33:51,357 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:51,357 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:51,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 14:33:51,357 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:51,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:51,358 INFO L85 PathProgramCache]: Analyzing trace with hash 521818317, now seen corresponding path program 1 times [2022-12-14 14:33:51,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:51,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045438681] [2022-12-14 14:33:51,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:51,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:51,426 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 14:33:51,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:51,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045438681] [2022-12-14 14:33:51,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045438681] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:51,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:33:51,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:33:51,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914103463] [2022-12-14 14:33:51,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:51,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:33:51,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:51,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:33:51,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:33:51,428 INFO L87 Difference]: Start difference. First operand 7140 states and 21552 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 14:33:51,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:51,501 INFO L93 Difference]: Finished difference Result 1358 states and 3500 transitions. [2022-12-14 14:33:51,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:33:51,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-12-14 14:33:51,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:51,504 INFO L225 Difference]: With dead ends: 1358 [2022-12-14 14:33:51,504 INFO L226 Difference]: Without dead ends: 1358 [2022-12-14 14:33:51,504 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 14:33:51,505 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 52 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:51,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 34 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:33:51,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2022-12-14 14:33:51,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1358. [2022-12-14 14:33:51,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1357 states have (on average 2.5792188651436994) internal successors, (3500), 1357 states have internal predecessors, (3500), 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 14:33:51,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 3500 transitions. [2022-12-14 14:33:51,528 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 3500 transitions. Word has length 19 [2022-12-14 14:33:51,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:51,528 INFO L495 AbstractCegarLoop]: Abstraction has 1358 states and 3500 transitions. [2022-12-14 14:33:51,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 14:33:51,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 3500 transitions. [2022-12-14 14:33:51,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 14:33:51,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:51,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:51,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 14:33:51,530 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:51,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:51,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1274228626, now seen corresponding path program 1 times [2022-12-14 14:33:51,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:51,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562829500] [2022-12-14 14:33:51,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:51,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:51,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:51,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562829500] [2022-12-14 14:33:51,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562829500] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:33:51,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004795462] [2022-12-14 14:33:51,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:51,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:51,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:51,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:51,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:33:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:51,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:33:51,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:51,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:33:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:51,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004795462] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:33:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [847576469] [2022-12-14 14:33:51,757 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-14 14:33:51,759 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 14:33:51,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 14:33:51,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155285083] [2022-12-14 14:33:51,760 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 14:33:51,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 14:33:51,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:51,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 14:33:51,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:33:51,761 INFO L87 Difference]: Start difference. First operand 1358 states and 3500 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 14:33:51,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:51,977 INFO L93 Difference]: Finished difference Result 3770 states and 9692 transitions. [2022-12-14 14:33:51,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:33:51,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 22 [2022-12-14 14:33:51,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:51,986 INFO L225 Difference]: With dead ends: 3770 [2022-12-14 14:33:51,986 INFO L226 Difference]: Without dead ends: 3770 [2022-12-14 14:33:51,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:33:51,987 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 247 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:51,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 141 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:33:51,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2022-12-14 14:33:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3770. [2022-12-14 14:33:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3769 states have (on average 2.5715043778190503) internal successors, (9692), 3769 states have internal predecessors, (9692), 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 14:33:52,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 9692 transitions. [2022-12-14 14:33:52,059 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 9692 transitions. Word has length 22 [2022-12-14 14:33:52,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:52,059 INFO L495 AbstractCegarLoop]: Abstraction has 3770 states and 9692 transitions. [2022-12-14 14:33:52,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 14:33:52,059 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 9692 transitions. [2022-12-14 14:33:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-14 14:33:52,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:33:52,065 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:52,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 14:33:52,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 14:33:52,267 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2022-12-14 14:33:52,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:33:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1803955673, now seen corresponding path program 2 times [2022-12-14 14:33:52,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:33:52,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653055615] [2022-12-14 14:33:52,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:33:52,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:33:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:33:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:33:52,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:33:52,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653055615] [2022-12-14 14:33:52,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653055615] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:33:52,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442997356] [2022-12-14 14:33:52,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 14:33:52,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:52,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:33:52,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:33:52,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:33:52,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-14 14:33:52,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:33:52,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 14:33:52,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:33:52,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 14:33:52,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:33:52,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 14:33:52,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:33:52,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 14:33:52,637 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 14:33:52,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 14:33:52,659 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-12-14 14:33:52,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:33:52,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442997356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:33:52,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:33:52,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 11 [2022-12-14 14:33:52,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645197525] [2022-12-14 14:33:52,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:33:52,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:33:52,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:33:52,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:33:52,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:33:52,661 INFO L87 Difference]: Start difference. First operand 3770 states and 9692 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 14:33:52,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:33:52,856 INFO L93 Difference]: Finished difference Result 3749 states and 9647 transitions. [2022-12-14 14:33:52,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:33:52,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 37 [2022-12-14 14:33:52,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:33:52,857 INFO L225 Difference]: With dead ends: 3749 [2022-12-14 14:33:52,857 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:33:52,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:33:52,858 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:33:52,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 60 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:33:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:33:52,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:33:52,859 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 14:33:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:33:52,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-12-14 14:33:52,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:33:52,859 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:33:52,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 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 14:33:52,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:33:52,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:33:52,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-12-14 14:33:52,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-12-14 14:33:52,863 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-12-14 14:33:52,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err1ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err2ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err3ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err4ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err5ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-12-14 14:33:52,865 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err6ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err11ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err12ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err8ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err10ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err0ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err1ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err2ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err3ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-12-14 14:33:52,866 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err4ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-12-14 14:33:52,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err5ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-12-14 14:33:52,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err8ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-12-14 14:33:52,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err6ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-12-14 14:33:52,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err7ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-12-14 14:33:52,867 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-12-14 14:33:52,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 14:33:53,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:33:53,071 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:33:53,076 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 14:33:53,077 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:33:53,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:33:53 BasicIcfg [2022-12-14 14:33:53,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:33:53,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:33:53,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:33:53,085 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:33:53,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:33:27" (3/4) ... [2022-12-14 14:33:53,093 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:33:53,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t1 [2022-12-14 14:33:53,110 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2 [2022-12-14 14:33:53,120 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-14 14:33:53,120 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:33:53,121 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:33:53,122 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:33:53,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:33:53,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:33:53,206 INFO L158 Benchmark]: Toolchain (without parser) took 26781.91ms. Allocated memory was 218.1MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 181.3MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 955.7MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,206 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 105.0MB in the end (delta: 185.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:33:53,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.75ms. Allocated memory is still 218.1MB. Free memory was 181.3MB in the beginning and 160.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.42ms. Allocated memory is still 218.1MB. Free memory was 160.3MB in the beginning and 157.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,207 INFO L158 Benchmark]: Boogie Preprocessor took 29.35ms. Allocated memory is still 218.1MB. Free memory was 157.5MB in the beginning and 155.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,208 INFO L158 Benchmark]: RCFGBuilder took 501.94ms. Allocated memory is still 218.1MB. Free memory was 155.4MB in the beginning and 131.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,208 INFO L158 Benchmark]: TraceAbstraction took 25689.05ms. Allocated memory was 218.1MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 130.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 901.1MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,208 INFO L158 Benchmark]: Witness Printer took 120.03ms. Allocated memory is still 2.3GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:33:53,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 130.0MB. Free memory was 105.2MB in the beginning and 105.0MB in the end (delta: 185.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 396.75ms. Allocated memory is still 218.1MB. Free memory was 181.3MB in the beginning and 160.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.42ms. Allocated memory is still 218.1MB. Free memory was 160.3MB in the beginning and 157.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.35ms. Allocated memory is still 218.1MB. Free memory was 157.5MB in the beginning and 155.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 501.94ms. Allocated memory is still 218.1MB. Free memory was 155.4MB in the beginning and 131.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25689.05ms. Allocated memory was 218.1MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 130.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 901.1MB. Max. memory is 16.1GB. * Witness Printer took 120.03ms. Allocated memory is still 2.3GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4s, 278 PlacesBefore, 102 PlacesAfterwards, 283 TransitionsBefore, 104 TransitionsAfterwards, 20196 CoEnabledTransitionPairs, 21 FixpointIterations, 97 TrivialSequentialCompositions, 217 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 3 ChoiceCompositions, 343 TotalNumberOfCompositions, 166291 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 73566, independent: 70895, independent conditional: 0, independent unconditional: 70895, dependent: 2629, dependent conditional: 0, dependent unconditional: 2629, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17390, independent: 17185, independent conditional: 0, independent unconditional: 17185, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17390, independent: 16259, independent conditional: 0, independent unconditional: 16259, dependent: 1131, dependent conditional: 0, dependent unconditional: 1131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1131, independent: 926, independent conditional: 0, independent unconditional: 926, dependent: 202, dependent conditional: 0, dependent unconditional: 202, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7203, independent: 440, independent conditional: 0, independent unconditional: 440, dependent: 343, dependent conditional: 0, dependent unconditional: 343, unknown: 6420, unknown conditional: 0, unknown unconditional: 6420] ], Cache Queries: [ total: 73566, independent: 53710, independent conditional: 0, independent unconditional: 53710, dependent: 2427, dependent conditional: 0, dependent unconditional: 2427, unknown: 17429, unknown conditional: 0, unknown unconditional: 17429] , Statistics on independence cache: Total cache size (in pairs): 2634, Positive cache size: 2533, Positive conditional cache size: 0, Positive unconditional cache size: 2533, Negative cache size: 101, Negative conditional cache size: 0, Negative unconditional cache size: 101, Unknown cache size: 1, Unknown conditional cache size: 0, Unknown unconditional cache size: 1 - 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: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 760]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: 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: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 709]: 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: 730]: 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: 731]: 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: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 712]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 695]: 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: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 748]: 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, 435 locations, 56 error locations. Started 1 CEGAR loops. OverallTime: 25.5s, OverallIterations: 19, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 13.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1660 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1660 mSDsluCounter, 1758 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 818 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3450 IncrementalHoareTripleChecker+Invalid, 3519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 940 mSDtfsCounter, 3450 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11870occurred in iteration=15, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 19 MinimizatonAttempts, 32070 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 340 NumberOfCodeBlocks, 313 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1379 SizeOfPredicates, 0 NumberOfNonLiveVariables, 600 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 22 InterpolantComputations, 18 PerfectInterpolantSequences, 34/71 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 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 14:33:53,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b3c2759-f02b-45af-b844-2905919870b8/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