./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/peterson-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/peterson-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P --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 a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:53:52,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:53:52,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:53:52,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:53:52,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:53:52,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:53:52,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:53:52,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:53:52,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:53:52,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:53:52,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:53:52,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:53:52,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:53:52,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:53:52,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:53:52,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:53:52,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:53:52,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:53:52,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:53:52,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:53:52,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:53:52,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:53:52,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:53:52,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:53:52,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:53:52,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:53:52,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:53:52,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:53:52,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:53:52,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:53:52,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:53:52,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:53:52,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:53:52,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:53:52,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:53:52,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:53:52,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:53:52,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:53:52,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:53:52,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:53:52,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:53:52,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/config/svcomp-DataRace-32bit-Taipan_Default.epf [2021-11-21 01:53:52,359 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:53:52,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:53:52,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:53:52,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:53:52,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:53:52,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:53:52,363 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:53:52,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:53:52,363 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:53:52,364 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:53:52,365 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:53:52,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:53:52,365 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:53:52,366 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:53:52,366 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:53:52,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:53:52,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:53:52,367 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:53:52,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:53:52,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:53:52,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:53:52,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:53:52,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:53:52,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:53:52,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:53:52,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:53:52,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:53:52,373 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-21 01:53:52,373 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:53:52,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:53:52,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:53:52,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:53:52,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:53:52,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:53:52,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:53:52,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:53:52,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:53:52,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:53:52,376 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:53:52,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:53:52,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:53:52,377 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:53:52,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:53:52,378 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 [2021-11-21 01:53:52,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:53:52,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:53:52,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:53:52,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:53:52,743 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:53:52,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/pthread-atomic/peterson-b.i [2021-11-21 01:53:52,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/data/c06e9f48a/1573ea7a19e04533b7fb68ac65cf53e3/FLAGdc8369b21 [2021-11-21 01:53:53,410 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:53:53,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/sv-benchmarks/c/pthread-atomic/peterson-b.i [2021-11-21 01:53:53,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/data/c06e9f48a/1573ea7a19e04533b7fb68ac65cf53e3/FLAGdc8369b21 [2021-11-21 01:53:53,712 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/data/c06e9f48a/1573ea7a19e04533b7fb68ac65cf53e3 [2021-11-21 01:53:53,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:53:53,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:53:53,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:53:53,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:53:53,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:53:53,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:53:53" (1/1) ... [2021-11-21 01:53:53,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e654e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:53, skipping insertion in model container [2021-11-21 01:53:53,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:53:53" (1/1) ... [2021-11-21 01:53:53,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:53:53,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:53:54,267 WARN L230 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_476f2b74-8573-44e7-95b6-1d2b6234bd8a/sv-benchmarks/c/pthread-atomic/peterson-b.i[30010,30023] [2021-11-21 01:53:54,272 WARN L230 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_476f2b74-8573-44e7-95b6-1d2b6234bd8a/sv-benchmarks/c/pthread-atomic/peterson-b.i[30174,30187] [2021-11-21 01:53:54,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:53:54,292 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:53:54,338 WARN L230 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_476f2b74-8573-44e7-95b6-1d2b6234bd8a/sv-benchmarks/c/pthread-atomic/peterson-b.i[30010,30023] [2021-11-21 01:53:54,340 WARN L230 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_476f2b74-8573-44e7-95b6-1d2b6234bd8a/sv-benchmarks/c/pthread-atomic/peterson-b.i[30174,30187] [2021-11-21 01:53:54,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:53:54,402 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:53:54,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54 WrapperNode [2021-11-21 01:53:54,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:53:54,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:53:54,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:53:54,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:53:54,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,482 INFO L137 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2021-11-21 01:53:54,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:53:54,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:53:54,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:53:54,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:53:54,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:53:54,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:53:54,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:53:54,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:53:54,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (1/1) ... [2021-11-21 01:53:54,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:53:54,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:53:54,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:53:54,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:53:54,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:53:54,599 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-11-21 01:53:54,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-11-21 01:53:54,600 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-21 01:53:54,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-21 01:53:54,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:53:54,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:53:54,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:53:54,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:53:54,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:53:54,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:53:54,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:53:54,603 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-21 01:53:54,712 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:53:54,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:53:54,976 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:53:54,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:53:54,985 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 01:53:54,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:54 BoogieIcfgContainer [2021-11-21 01:53:54,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:53:54,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:53:54,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:53:55,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:53:55,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:53:53" (1/3) ... [2021-11-21 01:53:55,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed2282e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:53:55, skipping insertion in model container [2021-11-21 01:53:55,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:53:54" (2/3) ... [2021-11-21 01:53:55,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed2282e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:53:55, skipping insertion in model container [2021-11-21 01:53:55,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:54" (3/3) ... [2021-11-21 01:53:55,005 INFO L111 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2021-11-21 01:53:55,014 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-21 01:53:55,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:53:55,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-21 01:53:55,015 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-21 01:53:55,095 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,095 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,095 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,096 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,096 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,096 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,096 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,096 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,097 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,097 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,097 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,097 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,098 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,098 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,098 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,098 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,099 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,099 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,099 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,099 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,100 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,102 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,102 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,102 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,102 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,103 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,103 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,103 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,106 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,106 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,107 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,107 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,107 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,107 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,108 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,108 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,108 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,108 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,109 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,111 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,111 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,111 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,112 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,112 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,112 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,112 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,113 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,113 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,115 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,115 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,115 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,115 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,116 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,116 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,116 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,117 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,117 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,117 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,117 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,118 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,118 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,118 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,119 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,119 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,119 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,119 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,120 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,120 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,121 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,123 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,123 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,124 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,125 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,126 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,126 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,126 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,127 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,128 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,129 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,130 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,131 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,132 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,133 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,134 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,135 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,136 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,138 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,139 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,140 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,141 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,142 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,143 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,144 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,145 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,146 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,148 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,149 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,150 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,157 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~short10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,158 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,158 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,158 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,158 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,159 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,160 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,160 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,160 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~short5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,166 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,166 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,167 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,167 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,168 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-21 01:53:55,174 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-21 01:53:55,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:53:55,250 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:53:55,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2021-11-21 01:53:55,276 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-21 01:53:55,293 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 156 transitions, 328 flow [2021-11-21 01:53:55,296 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 156 transitions, 328 flow [2021-11-21 01:53:55,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 156 transitions, 328 flow [2021-11-21 01:53:55,429 INFO L129 PetriNetUnfolder]: 8/154 cut-off events. [2021-11-21 01:53:55,429 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-21 01:53:55,437 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 154 events. 8/154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 282 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2021-11-21 01:53:55,448 INFO L116 LiptonReduction]: Number of co-enabled transitions 8036 [2021-11-21 01:53:58,416 INFO L131 LiptonReduction]: Checked pairs total: 32564 [2021-11-21 01:53:58,416 INFO L133 LiptonReduction]: Total number of compositions: 103 [2021-11-21 01:53:58,431 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 75 transitions, 166 flow [2021-11-21 01:53:58,561 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2493 states, 2358 states have (on average 2.9987277353689565) internal successors, (7071), 2492 states have internal predecessors, (7071), 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) [2021-11-21 01:53:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand has 2493 states, 2358 states have (on average 2.9987277353689565) internal successors, (7071), 2492 states have internal predecessors, (7071), 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) [2021-11-21 01:53:58,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:53:58,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:58,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:53:58,579 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:53:58,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:58,584 INFO L85 PathProgramCache]: Analyzing trace with hash 549481467, now seen corresponding path program 1 times [2021-11-21 01:53:58,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:58,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719050579] [2021-11-21 01:53:58,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:58,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:58,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:58,769 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:58,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719050579] [2021-11-21 01:53:58,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719050579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:58,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:58,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:53:58,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883255712] [2021-11-21 01:53:58,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:58,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:53:58,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:58,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:53:58,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:53:58,814 INFO L87 Difference]: Start difference. First operand has 2493 states, 2358 states have (on average 2.9987277353689565) internal successors, (7071), 2492 states have internal predecessors, (7071), 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 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:53:58,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:58,947 INFO L93 Difference]: Finished difference Result 1681 states and 4260 transitions. [2021-11-21 01:53:58,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:53:58,949 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-21 01:53:58,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:58,983 INFO L225 Difference]: With dead ends: 1681 [2021-11-21 01:53:58,983 INFO L226 Difference]: Without dead ends: 1678 [2021-11-21 01:53:58,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:53:58,988 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:58,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:53:59,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1678 states. [2021-11-21 01:53:59,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1678 to 1678. [2021-11-21 01:53:59,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1678 states, 1615 states have (on average 2.63343653250774) internal successors, (4253), 1677 states have internal predecessors, (4253), 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) [2021-11-21 01:53:59,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1678 states to 1678 states and 4253 transitions. [2021-11-21 01:53:59,177 INFO L78 Accepts]: Start accepts. Automaton has 1678 states and 4253 transitions. Word has length 5 [2021-11-21 01:53:59,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:59,178 INFO L470 AbstractCegarLoop]: Abstraction has 1678 states and 4253 transitions. [2021-11-21 01:53:59,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:53:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 1678 states and 4253 transitions. [2021-11-21 01:53:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:53:59,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:59,180 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:53:59,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:53:59,181 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:53:59,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:59,185 INFO L85 PathProgramCache]: Analyzing trace with hash 549412035, now seen corresponding path program 1 times [2021-11-21 01:53:59,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:59,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366853828] [2021-11-21 01:53:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:59,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:59,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:59,286 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:59,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366853828] [2021-11-21 01:53:59,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366853828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:59,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:59,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:53:59,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866345538] [2021-11-21 01:53:59,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:59,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:53:59,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:59,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:53:59,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:59,295 INFO L87 Difference]: Start difference. First operand 1678 states and 4253 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:53:59,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:59,449 INFO L93 Difference]: Finished difference Result 1740 states and 4413 transitions. [2021-11-21 01:53:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:53:59,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-21 01:53:59,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:59,470 INFO L225 Difference]: With dead ends: 1740 [2021-11-21 01:53:59,470 INFO L226 Difference]: Without dead ends: 1740 [2021-11-21 01:53:59,470 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:53:59,472 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 32 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:59,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 69 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:53:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2021-11-21 01:53:59,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1700. [2021-11-21 01:53:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1639 states have (on average 2.63026235509457) internal successors, (4311), 1699 states have internal predecessors, (4311), 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) [2021-11-21 01:53:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 4311 transitions. [2021-11-21 01:53:59,547 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 4311 transitions. Word has length 5 [2021-11-21 01:53:59,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:59,548 INFO L470 AbstractCegarLoop]: Abstraction has 1700 states and 4311 transitions. [2021-11-21 01:53:59,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:53:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 4311 transitions. [2021-11-21 01:53:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 01:53:59,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:59,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:59,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:53:59,550 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:53:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash -229296633, now seen corresponding path program 1 times [2021-11-21 01:53:59,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:59,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358531258] [2021-11-21 01:53:59,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:59,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:59,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:59,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358531258] [2021-11-21 01:53:59,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358531258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:59,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:59,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:53:59,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358950913] [2021-11-21 01:53:59,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:59,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:53:59,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:59,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:53:59,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:59,637 INFO L87 Difference]: Start difference. First operand 1700 states and 4311 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:53:59,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:53:59,753 INFO L93 Difference]: Finished difference Result 1728 states and 4382 transitions. [2021-11-21 01:53:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:53:59,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-21 01:53:59,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:53:59,771 INFO L225 Difference]: With dead ends: 1728 [2021-11-21 01:53:59,771 INFO L226 Difference]: Without dead ends: 1728 [2021-11-21 01:53:59,771 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:53:59,775 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 30 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:53:59,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 68 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:53:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2021-11-21 01:53:59,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1728. [2021-11-21 01:53:59,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1668 states have (on average 2.6270983213429258) internal successors, (4382), 1727 states have internal predecessors, (4382), 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) [2021-11-21 01:53:59,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 4382 transitions. [2021-11-21 01:53:59,872 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 4382 transitions. Word has length 7 [2021-11-21 01:53:59,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:53:59,872 INFO L470 AbstractCegarLoop]: Abstraction has 1728 states and 4382 transitions. [2021-11-21 01:53:59,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:53:59,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 4382 transitions. [2021-11-21 01:53:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:53:59,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:53:59,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:53:59,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:53:59,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:53:59,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:53:59,888 INFO L85 PathProgramCache]: Analyzing trace with hash -585927549, now seen corresponding path program 1 times [2021-11-21 01:53:59,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:53:59,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011958599] [2021-11-21 01:53:59,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:53:59,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:53:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:53:59,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:53:59,965 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:53:59,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011958599] [2021-11-21 01:53:59,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011958599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:53:59,966 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:53:59,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:53:59,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174000218] [2021-11-21 01:53:59,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:53:59,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:53:59,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:53:59,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:53:59,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:53:59,974 INFO L87 Difference]: Start difference. First operand 1728 states and 4382 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) [2021-11-21 01:54:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:00,079 INFO L93 Difference]: Finished difference Result 1760 states and 4465 transitions. [2021-11-21 01:54:00,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:54:00,079 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 [2021-11-21 01:54:00,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:00,096 INFO L225 Difference]: With dead ends: 1760 [2021-11-21 01:54:00,096 INFO L226 Difference]: Without dead ends: 1760 [2021-11-21 01:54:00,097 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:54:00,101 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:00,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 67 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:54:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1760 states. [2021-11-21 01:54:00,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1760 to 1760. [2021-11-21 01:54:00,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1760 states, 1700 states have (on average 2.626470588235294) internal successors, (4465), 1759 states have internal predecessors, (4465), 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) [2021-11-21 01:54:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1760 states to 1760 states and 4465 transitions. [2021-11-21 01:54:00,190 INFO L78 Accepts]: Start accepts. Automaton has 1760 states and 4465 transitions. Word has length 8 [2021-11-21 01:54:00,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:00,190 INFO L470 AbstractCegarLoop]: Abstraction has 1760 states and 4465 transitions. [2021-11-21 01:54:00,191 INFO L471 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) [2021-11-21 01:54:00,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1760 states and 4465 transitions. [2021-11-21 01:54:00,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 01:54:00,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:00,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:00,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:54:00,196 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:54:00,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1973706771, now seen corresponding path program 1 times [2021-11-21 01:54:00,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:00,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823033711] [2021-11-21 01:54:00,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:00,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:00,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:00,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:00,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823033711] [2021-11-21 01:54:00,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823033711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:00,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:00,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:54:00,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149678604] [2021-11-21 01:54:00,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:00,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:54:00,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:00,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:54:00,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:54:00,256 INFO L87 Difference]: Start difference. First operand 1760 states and 4465 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) [2021-11-21 01:54:00,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:00,369 INFO L93 Difference]: Finished difference Result 1788 states and 4536 transitions. [2021-11-21 01:54:00,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:54:00,370 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 [2021-11-21 01:54:00,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:00,388 INFO L225 Difference]: With dead ends: 1788 [2021-11-21 01:54:00,388 INFO L226 Difference]: Without dead ends: 1788 [2021-11-21 01:54:00,388 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:54:00,389 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 29 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:00,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 65 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:54:00,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2021-11-21 01:54:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1788. [2021-11-21 01:54:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1788 states, 1729 states have (on average 2.623481781376518) internal successors, (4536), 1787 states have internal predecessors, (4536), 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) [2021-11-21 01:54:00,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 4536 transitions. [2021-11-21 01:54:00,480 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 4536 transitions. Word has length 10 [2021-11-21 01:54:00,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:00,481 INFO L470 AbstractCegarLoop]: Abstraction has 1788 states and 4536 transitions. [2021-11-21 01:54:00,481 INFO L471 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) [2021-11-21 01:54:00,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 4536 transitions. [2021-11-21 01:54:00,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 01:54:00,483 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:00,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:00,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:54:00,483 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:54:00,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:00,484 INFO L85 PathProgramCache]: Analyzing trace with hash -435569804, now seen corresponding path program 1 times [2021-11-21 01:54:00,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:00,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683883081] [2021-11-21 01:54:00,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:00,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:00,513 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:00,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683883081] [2021-11-21 01:54:00,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683883081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:00,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:00,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:54:00,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262473539] [2021-11-21 01:54:00,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:00,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:54:00,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:00,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:54:00,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:54:00,516 INFO L87 Difference]: Start difference. First operand 1788 states and 4536 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) [2021-11-21 01:54:00,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:00,632 INFO L93 Difference]: Finished difference Result 2802 states and 7134 transitions. [2021-11-21 01:54:00,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:54:00,633 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 [2021-11-21 01:54:00,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:00,659 INFO L225 Difference]: With dead ends: 2802 [2021-11-21 01:54:00,659 INFO L226 Difference]: Without dead ends: 2802 [2021-11-21 01:54:00,660 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:54:00,660 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 51 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:00,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 69 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:54:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2802 states. [2021-11-21 01:54:00,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2802 to 1820. [2021-11-21 01:54:00,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1820 states, 1763 states have (on average 2.6199659671015314) internal successors, (4619), 1819 states have internal predecessors, (4619), 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) [2021-11-21 01:54:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1820 states to 1820 states and 4619 transitions. [2021-11-21 01:54:00,746 INFO L78 Accepts]: Start accepts. Automaton has 1820 states and 4619 transitions. Word has length 10 [2021-11-21 01:54:00,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:00,746 INFO L470 AbstractCegarLoop]: Abstraction has 1820 states and 4619 transitions. [2021-11-21 01:54:00,746 INFO L471 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) [2021-11-21 01:54:00,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1820 states and 4619 transitions. [2021-11-21 01:54:00,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 01:54:00,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:00,748 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:00,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:54:00,749 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:54:00,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:00,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1643482041, now seen corresponding path program 1 times [2021-11-21 01:54:00,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:00,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842478354] [2021-11-21 01:54:00,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:00,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:00,778 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:00,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842478354] [2021-11-21 01:54:00,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842478354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:00,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:00,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:54:00,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468791475] [2021-11-21 01:54:00,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:00,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:54:00,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:00,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:54:00,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:54:00,781 INFO L87 Difference]: Start difference. First operand 1820 states and 4619 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) [2021-11-21 01:54:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:00,887 INFO L93 Difference]: Finished difference Result 2794 states and 7118 transitions. [2021-11-21 01:54:00,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:54:00,888 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 [2021-11-21 01:54:00,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:00,911 INFO L225 Difference]: With dead ends: 2794 [2021-11-21 01:54:00,911 INFO L226 Difference]: Without dead ends: 2794 [2021-11-21 01:54:00,912 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:54:00,913 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 49 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:00,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 67 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:54:00,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2021-11-21 01:54:00,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 1850. [2021-11-21 01:54:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1796 states have (on average 2.6141425389755013) internal successors, (4695), 1849 states have internal predecessors, (4695), 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) [2021-11-21 01:54:01,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 4695 transitions. [2021-11-21 01:54:01,001 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 4695 transitions. Word has length 12 [2021-11-21 01:54:01,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:01,001 INFO L470 AbstractCegarLoop]: Abstraction has 1850 states and 4695 transitions. [2021-11-21 01:54:01,002 INFO L471 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) [2021-11-21 01:54:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 4695 transitions. [2021-11-21 01:54:01,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:54:01,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:01,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:01,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:54:01,008 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:54:01,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:01,009 INFO L85 PathProgramCache]: Analyzing trace with hash -963334843, now seen corresponding path program 1 times [2021-11-21 01:54:01,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:01,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477902047] [2021-11-21 01:54:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:01,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:54:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:54:01,091 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:54:01,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477902047] [2021-11-21 01:54:01,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477902047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:54:01,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:54:01,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:54:01,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480468089] [2021-11-21 01:54:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:54:01,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:54:01,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:54:01,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:54:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:54:01,094 INFO L87 Difference]: Start difference. First operand 1850 states and 4695 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:54:01,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:54:01,155 INFO L93 Difference]: Finished difference Result 1834 states and 4647 transitions. [2021-11-21 01:54:01,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:54:01,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 01:54:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:54:01,171 INFO L225 Difference]: With dead ends: 1834 [2021-11-21 01:54:01,171 INFO L226 Difference]: Without dead ends: 1834 [2021-11-21 01:54:01,172 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:54:01,173 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 28 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:54:01,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 67 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:54:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1834 states. [2021-11-21 01:54:01,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1834 to 1834. [2021-11-21 01:54:01,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1780 states have (on average 2.6106741573033707) internal successors, (4647), 1833 states have internal predecessors, (4647), 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) [2021-11-21 01:54:01,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 4647 transitions. [2021-11-21 01:54:01,234 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 4647 transitions. Word has length 13 [2021-11-21 01:54:01,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:54:01,235 INFO L470 AbstractCegarLoop]: Abstraction has 1834 states and 4647 transitions. [2021-11-21 01:54:01,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:54:01,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 4647 transitions. [2021-11-21 01:54:01,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 01:54:01,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:54:01,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:01,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:54:01,237 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2021-11-21 01:54:01,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:54:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash 234215162, now seen corresponding path program 1 times [2021-11-21 01:54:01,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:54:01,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913998948] [2021-11-21 01:54:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:54:01,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:54:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:54:01,265 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:54:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:54:01,321 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:54:01,321 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:54:01,322 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 32 remaining) [2021-11-21 01:54:01,324 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2021-11-21 01:54:01,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2021-11-21 01:54:01,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2021-11-21 01:54:01,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2021-11-21 01:54:01,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2021-11-21 01:54:01,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2021-11-21 01:54:01,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2021-11-21 01:54:01,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2021-11-21 01:54:01,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2021-11-21 01:54:01,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2021-11-21 01:54:01,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2021-11-21 01:54:01,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2021-11-21 01:54:01,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2021-11-21 01:54:01,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2021-11-21 01:54:01,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2021-11-21 01:54:01,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2021-11-21 01:54:01,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (14 of 32 remaining) [2021-11-21 01:54:01,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (13 of 32 remaining) [2021-11-21 01:54:01,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2021-11-21 01:54:01,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2021-11-21 01:54:01,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2021-11-21 01:54:01,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2021-11-21 01:54:01,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2021-11-21 01:54:01,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2021-11-21 01:54:01,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2021-11-21 01:54:01,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2021-11-21 01:54:01,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2021-11-21 01:54:01,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2021-11-21 01:54:01,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2021-11-21 01:54:01,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2021-11-21 01:54:01,332 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2021-11-21 01:54:01,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:54:01,335 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:54:01,341 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-21 01:54:01,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:54:01,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:54:01 BasicIcfg [2021-11-21 01:54:01,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:54:01,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:54:01,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:54:01,409 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:54:01,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:53:54" (3/4) ... [2021-11-21 01:54:01,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:54:01,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:54:01,414 INFO L158 Benchmark]: Toolchain (without parser) took 7696.59ms. Allocated memory was 90.2MB in the beginning and 192.9MB in the end (delta: 102.8MB). Free memory was 47.8MB in the beginning and 153.0MB in the end (delta: -105.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:54:01,415 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 65.5MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:54:01,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.05ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 47.6MB in the beginning and 85.4MB in the end (delta: -37.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 01:54:01,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.55ms. Allocated memory is still 125.8MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:54:01,416 INFO L158 Benchmark]: Boogie Preprocessor took 32.78ms. Allocated memory is still 125.8MB. Free memory was 83.8MB in the beginning and 82.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:54:01,417 INFO L158 Benchmark]: RCFGBuilder took 470.37ms. Allocated memory is still 125.8MB. Free memory was 81.7MB in the beginning and 67.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 01:54:01,417 INFO L158 Benchmark]: TraceAbstraction took 6418.89ms. Allocated memory was 125.8MB in the beginning and 192.9MB in the end (delta: 67.1MB). Free memory was 67.1MB in the beginning and 153.0MB in the end (delta: -85.9MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2021-11-21 01:54:01,417 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 192.9MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:54:01,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 65.6MB in the beginning and 65.5MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.05ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 47.6MB in the beginning and 85.4MB in the end (delta: -37.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.55ms. Allocated memory is still 125.8MB. Free memory was 85.4MB in the beginning and 83.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.78ms. Allocated memory is still 125.8MB. Free memory was 83.8MB in the beginning and 82.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.37ms. Allocated memory is still 125.8MB. Free memory was 81.7MB in the beginning and 67.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6418.89ms. Allocated memory was 125.8MB in the beginning and 192.9MB in the end (delta: 67.1MB). Free memory was 67.1MB in the beginning and 153.0MB in the end (delta: -85.9MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 192.9MB. Free memory is still 153.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.1s, 155 PlacesBefore, 74 PlacesAfterwards, 156 TransitionsBefore, 75 TransitionsAfterwards, 8036 CoEnabledTransitionPairs, 7 FixpointIterations, 28 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 103 TotalNumberOfCompositions, 32564 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16427, positive: 15762, positive conditional: 0, positive unconditional: 15762, negative: 665, negative conditional: 0, negative unconditional: 665, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5735, positive: 5622, positive conditional: 0, positive unconditional: 5622, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5735, positive: 5542, positive conditional: 0, positive unconditional: 5542, negative: 193, negative conditional: 0, negative unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 193, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 157, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 105, negative conditional: 0, negative unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16427, positive: 10140, positive conditional: 0, positive unconditional: 10140, negative: 552, negative conditional: 0, negative unconditional: 552, unknown: 5735, unknown conditional: 0, unknown unconditional: 5735] , Statistics on independence cache: Total cache size (in pairs): 1340, Positive cache size: 1270, Positive conditional cache size: 0, Positive unconditional cache size: 1270, Negative cache size: 70, Negative conditional cache size: 0, Negative unconditional cache size: 70 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int turn; [L686] 0 int x; [L706] 0 pthread_t t1, t2; [L707] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=0, t1={3:0}, t2={5:0}, turn=0, x=0] [L688] 1 flag1 = 1 [L689] 1 turn = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=1, x=0] [L690] 1 flag2==1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=1, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=1, t1={3:0}, t2={5:0}, turn=1, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, turn=1, x=0] [L690] 1 flag2==1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=50, turn=1, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [697] and C: flag2==1 [690] - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 243 locations, 32 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 503 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 378 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 658 IncrementalHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 326 mSDtfsCounter, 658 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2493occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 1966 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-21 01:54:01,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_476f2b74-8573-44e7-95b6-1d2b6234bd8a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE