./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/reorder_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba --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 c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:37:39,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:37:39,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:37:39,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:37:39,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:37:39,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:37:39,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:37:39,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:37:39,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:37:39,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:37:39,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:37:39,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:37:39,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:37:39,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:37:39,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:37:39,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:37:39,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:37:39,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:37:39,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:37:39,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:37:39,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:37:39,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:37:39,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:37:39,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:37:39,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:37:39,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:37:39,371 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:37:39,372 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:37:39,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:37:39,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:37:39,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:37:39,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:37:39,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:37:39,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:37:39,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:37:39,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:37:39,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:37:39,381 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:37:39,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:37:39,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:37:39,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:37:39,390 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 01:37:39,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:37:39,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:37:39,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:37:39,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:37:39,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:37:39,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:37:39,448 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:37:39,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:37:39,448 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:37:39,448 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:37:39,450 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:37:39,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:37:39,451 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:37:39,451 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:37:39,451 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:37:39,451 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:37:39,452 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:37:39,452 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:37:39,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:37:39,453 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:37:39,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:37:39,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:37:39,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:37:39,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:37:39,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:37:39,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:37:39,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:37:39,456 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 01:37:39,457 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:37:39,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:37:39,457 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:37:39,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:37:39,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:37:39,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:37:39,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:37:39,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:37:39,459 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:37:39,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:37:39,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:37:39,460 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:37:39,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:37:39,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:37:39,461 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:37:39,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2478eeb4380713960dd80551c9d8e99269809d2bcbd284785221597bb31a471 [2022-11-22 01:37:39,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:37:39,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:37:39,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:37:39,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:37:39,995 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:37:39,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread/reorder_5.i [2022-11-22 01:37:43,935 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:37:44,524 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:37:44,525 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/sv-benchmarks/c/pthread/reorder_5.i [2022-11-22 01:37:44,544 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/data/55aead4c8/50bf97438865484eaaace59c765c07a5/FLAG612983f49 [2022-11-22 01:37:44,564 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/data/55aead4c8/50bf97438865484eaaace59c765c07a5 [2022-11-22 01:37:44,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:37:44,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:37:44,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:37:44,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:37:44,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:37:44,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:44" (1/1) ... [2022-11-22 01:37:44,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@baaa72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:44, skipping insertion in model container [2022-11-22 01:37:44,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:37:44" (1/1) ... [2022-11-22 01:37:44,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:37:44,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:37:45,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-22 01:37:45,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:37:45,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:37:45,668 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/sv-benchmarks/c/pthread/reorder_5.i[59329,59342] [2022-11-22 01:37:45,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:37:45,781 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:37:45,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45 WrapperNode [2022-11-22 01:37:45,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:37:45,784 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:37:45,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:37:45,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:37:45,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,890 INFO L138 Inliner]: procedures = 369, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 200 [2022-11-22 01:37:45,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:37:45,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:37:45,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:37:45,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:37:45,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:37:45,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:37:45,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:37:45,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:37:45,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (1/1) ... [2022-11-22 01:37:45,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:37:45,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:37:46,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:37:46,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5873bbc7-7c5c-48c7-a54e-2b88795c5520/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:37:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:37:46,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:37:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:37:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-11-22 01:37:46,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-11-22 01:37:46,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:37:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:37:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-11-22 01:37:46,071 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-11-22 01:37:46,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:37:46,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:37:46,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:37:46,074 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:37:46,260 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:37:46,263 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:37:47,092 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:37:47,105 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:37:47,115 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 01:37:47,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:47 BoogieIcfgContainer [2022-11-22 01:37:47,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:37:47,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:37:47,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:37:47,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:37:47,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:37:44" (1/3) ... [2022-11-22 01:37:47,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101dd899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:47, skipping insertion in model container [2022-11-22 01:37:47,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:37:45" (2/3) ... [2022-11-22 01:37:47,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101dd899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:47, skipping insertion in model container [2022-11-22 01:37:47,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:47" (3/3) ... [2022-11-22 01:37:47,139 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2022-11-22 01:37:47,154 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:37:47,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:37:47,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-22 01:37:47,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:37:47,289 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-22 01:37:47,341 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:37:47,360 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 266 places, 279 transitions, 580 flow [2022-11-22 01:37:47,364 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 266 places, 279 transitions, 580 flow [2022-11-22 01:37:47,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 279 transitions, 580 flow [2022-11-22 01:37:47,678 INFO L130 PetriNetUnfolder]: 41/598 cut-off events. [2022-11-22 01:37:47,678 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-22 01:37:47,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618 conditions, 598 events. 41/598 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2592 event pairs, 0 based on Foata normal form. 0/503 useless extension candidates. Maximal degree in co-relation 303. Up to 8 conditions per place. [2022-11-22 01:37:47,719 INFO L119 LiptonReduction]: Number of co-enabled transitions 14204 [2022-11-22 01:38:24,789 WARN L233 SmtUtils]: Spent 18.97s on a formula simplification. DAG size of input: 222 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:38:34,553 WARN L233 SmtUtils]: Spent 9.76s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:38:55,962 WARN L233 SmtUtils]: Spent 21.40s on a formula simplification. DAG size of input: 229 DAG size of output: 223 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:39:05,890 WARN L233 SmtUtils]: Spent 9.92s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:39:05,913 INFO L134 LiptonReduction]: Checked pairs total: 38712 [2022-11-22 01:39:05,913 INFO L136 LiptonReduction]: Total number of compositions: 301 [2022-11-22 01:39:05,923 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 64 places, 66 transitions, 154 flow [2022-11-22 01:39:06,111 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3050 states, 2764 states have (on average 3.039435600578871) internal successors, (8401), 3049 states have internal predecessors, (8401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:06,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:39:06,148 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c54d140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:39:06,148 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-22 01:39:06,162 INFO L276 IsEmpty]: Start isEmpty. Operand has 3050 states, 2764 states have (on average 3.039435600578871) internal successors, (8401), 3049 states have internal predecessors, (8401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:06,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 01:39:06,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:06,170 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 01:39:06,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-22 01:39:06,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1011, now seen corresponding path program 1 times [2022-11-22 01:39:06,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:06,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971212075] [2022-11-22 01:39:06,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:06,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:06,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:39:06,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:06,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971212075] [2022-11-22 01:39:06,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971212075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:06,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:06,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 01:39:06,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122720446] [2022-11-22 01:39:06,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:06,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:39:06,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:06,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:39:06,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:39:06,433 INFO L87 Difference]: Start difference. First operand has 3050 states, 2764 states have (on average 3.039435600578871) internal successors, (8401), 3049 states have internal predecessors, (8401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:06,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:06,668 INFO L93 Difference]: Finished difference Result 1746 states and 4763 transitions. [2022-11-22 01:39:06,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:39:06,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 01:39:06,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:06,716 INFO L225 Difference]: With dead ends: 1746 [2022-11-22 01:39:06,716 INFO L226 Difference]: Without dead ends: 1687 [2022-11-22 01:39:06,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:39:06,721 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:06,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:39:06,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2022-11-22 01:39:06,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1687. [2022-11-22 01:39:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1616 states have (on average 2.8452970297029703) internal successors, (4598), 1686 states have internal predecessors, (4598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 4598 transitions. [2022-11-22 01:39:06,885 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 4598 transitions. Word has length 1 [2022-11-22 01:39:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:06,886 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 4598 transitions. [2022-11-22 01:39:06,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 4598 transitions. [2022-11-22 01:39:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:39:06,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:06,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:39:06,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:39:06,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting checkThreadErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-22 01:39:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash 18889503, now seen corresponding path program 1 times [2022-11-22 01:39:06,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:06,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746211156] [2022-11-22 01:39:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:06,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:39:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:39:07,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:39:07,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746211156] [2022-11-22 01:39:07,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746211156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:39:07,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:39:07,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:39:07,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503532052] [2022-11-22 01:39:07,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:39:07,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:39:07,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:39:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:39:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:07,162 INFO L87 Difference]: Start difference. First operand 1687 states and 4598 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:07,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:39:07,442 INFO L93 Difference]: Finished difference Result 2673 states and 7303 transitions. [2022-11-22 01:39:07,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:39:07,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 01:39:07,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:39:07,463 INFO L225 Difference]: With dead ends: 2673 [2022-11-22 01:39:07,464 INFO L226 Difference]: Without dead ends: 2673 [2022-11-22 01:39:07,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:39:07,466 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 38 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:39:07,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 30 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:39:07,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2022-11-22 01:39:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 1787. [2022-11-22 01:39:07,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1718 states have (on average 2.9057043073341093) internal successors, (4992), 1786 states have internal predecessors, (4992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:07,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 4992 transitions. [2022-11-22 01:39:07,559 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 4992 transitions. Word has length 6 [2022-11-22 01:39:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:39:07,560 INFO L495 AbstractCegarLoop]: Abstraction has 1787 states and 4992 transitions. [2022-11-22 01:39:07,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:39:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 4992 transitions. [2022-11-22 01:39:07,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:39:07,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:39:07,562 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 01:39:07,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:39:07,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2022-11-22 01:39:07,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:39:07,563 INFO L85 PathProgramCache]: Analyzing trace with hash -382815, now seen corresponding path program 1 times [2022-11-22 01:39:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:39:07,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102404901] [2022-11-22 01:39:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:39:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:39:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:39:07,706 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:39:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:39:07,803 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:39:07,804 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:39:07,805 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-22 01:39:07,807 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2022-11-22 01:39:07,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2022-11-22 01:39:07,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2022-11-22 01:39:07,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2022-11-22 01:39:07,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2022-11-22 01:39:07,809 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2022-11-22 01:39:07,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2022-11-22 01:39:07,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2022-11-22 01:39:07,810 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2022-11-22 01:39:07,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2022-11-22 01:39:07,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2022-11-22 01:39:07,811 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2022-11-22 01:39:07,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2022-11-22 01:39:07,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2022-11-22 01:39:07,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2022-11-22 01:39:07,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2022-11-22 01:39:07,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2022-11-22 01:39:07,813 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2022-11-22 01:39:07,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2022-11-22 01:39:07,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2022-11-22 01:39:07,814 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2022-11-22 01:39:07,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2022-11-22 01:39:07,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 31 remaining) [2022-11-22 01:39:07,815 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2022-11-22 01:39:07,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2022-11-22 01:39:07,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2022-11-22 01:39:07,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2022-11-22 01:39:07,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2022-11-22 01:39:07,817 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr3ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2022-11-22 01:39:07,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2022-11-22 01:39:07,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:39:07,821 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 01:39:07,823 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 01:39:07,823 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-22 01:39:07,868 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-22 01:39:07,874 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:39:07,874 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 324 places, 341 transitions, 730 flow [2022-11-22 01:39:07,875 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 324 places, 341 transitions, 730 flow [2022-11-22 01:39:07,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 324 places, 341 transitions, 730 flow [2022-11-22 01:39:08,392 INFO L130 PetriNetUnfolder]: 165/1886 cut-off events. [2022-11-22 01:39:08,393 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-22 01:39:08,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1983 conditions, 1886 events. 165/1886 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 11678 event pairs, 2 based on Foata normal form. 0/1581 useless extension candidates. Maximal degree in co-relation 1077. Up to 32 conditions per place. [2022-11-22 01:39:08,494 INFO L119 LiptonReduction]: Number of co-enabled transitions 35748 [2022-11-22 01:39:37,963 WARN L233 SmtUtils]: Spent 10.64s on a formula simplification. DAG size of input: 222 DAG size of output: 216 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:39:43,483 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification that was a NOOP. DAG size: 216 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:39:57,522 WARN L233 SmtUtils]: Spent 14.03s on a formula simplification. DAG size of input: 232 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:40:03,777 WARN L233 SmtUtils]: Spent 6.25s on a formula simplification that was a NOOP. DAG size: 223 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:40:03,784 INFO L134 LiptonReduction]: Checked pairs total: 122347 [2022-11-22 01:40:03,784 INFO L136 LiptonReduction]: Total number of compositions: 334 [2022-11-22 01:40:03,786 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 98 places, 103 transitions, 254 flow [2022-11-22 01:40:34,841 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 632372 states, 625273 states have (on average 4.704052469881156) internal successors, (2941317), 632371 states have internal predecessors, (2941317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:34,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:40:34,843 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c54d140, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:40:34,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-22 01:40:36,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 632372 states, 625273 states have (on average 4.704052469881156) internal successors, (2941317), 632371 states have internal predecessors, (2941317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 01:40:36,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:40:36,133 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 01:40:36,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2022-11-22 01:40:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:40:36,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1746, now seen corresponding path program 1 times [2022-11-22 01:40:36,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:40:36,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158922239] [2022-11-22 01:40:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:40:36,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:40:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:40:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:40:36,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:40:36,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158922239] [2022-11-22 01:40:36,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158922239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:40:36,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:40:36,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 01:40:36,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992175149] [2022-11-22 01:40:36,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:40:36,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:40:36,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:40:36,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:40:36,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:40:37,605 INFO L87 Difference]: Start difference. First operand has 632372 states, 625273 states have (on average 4.704052469881156) internal successors, (2941317), 632371 states have internal predecessors, (2941317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:40:48,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:40:48,822 INFO L93 Difference]: Finished difference Result 354699 states and 1648561 transitions. [2022-11-22 01:40:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:40:48,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-22 01:40:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:40:54,997 INFO L225 Difference]: With dead ends: 354699 [2022-11-22 01:40:54,998 INFO L226 Difference]: Without dead ends: 354160 [2022-11-22 01:40:55,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:40:55,011 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:40:55,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:40:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354160 states.