./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- 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-4e7fbc6 [2022-11-23 15:58:04,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:58:04,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:58:04,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:58:04,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:58:04,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:58:04,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:58:04,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:58:04,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:58:04,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:58:04,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:58:04,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:58:04,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:58:04,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:58:04,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:58:04,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:58:04,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:58:04,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:58:04,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:58:04,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:58:04,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:58:04,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:58:04,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:58:04,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:58:04,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:58:04,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:58:04,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:58:04,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:58:04,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:58:04,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:58:04,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:58:04,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:58:04,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:58:04,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:58:04,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:58:04,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:58:04,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:58:04,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:58:04,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:58:04,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:58:04,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:58:04,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:58:04,873 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:58:04,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:58:04,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:58:04,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:58:04,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:58:04,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:58:04,876 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:58:04,876 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:58:04,876 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:58:04,877 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:58:04,877 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:58:04,877 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:58:04,878 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:58:04,878 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:58:04,878 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:58:04,879 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:58:04,879 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:58:04,879 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:58:04,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:58:04,881 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:58:04,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:58:04,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:58:04,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:58:04,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:58:04,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:58:04,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:58:04,883 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:58:04,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:58:04,884 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:58:04,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:58:04,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:58:04,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:58:04,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:58:04,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:58:04,886 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:58:04,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:58:04,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:58:04,887 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:58:04,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:58:04,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:58:04,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:58:04,888 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_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2022-11-23 15:58:05,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:58:05,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:58:05,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:58:05,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:58:05,329 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:58:05,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2022-11-23 15:58:08,894 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:58:09,326 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:58:09,327 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2022-11-23 15:58:09,357 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/data/b6329b6d1/7ce3ee3cc21d49c5b6a44153a8b29a36/FLAGe6e31f85b [2022-11-23 15:58:09,377 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/data/b6329b6d1/7ce3ee3cc21d49c5b6a44153a8b29a36 [2022-11-23 15:58:09,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:58:09,382 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:58:09,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:58:09,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:58:09,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:58:09,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:09" (1/1) ... [2022-11-23 15:58:09,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b776f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:09, skipping insertion in model container [2022-11-23 15:58:09,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:09" (1/1) ... [2022-11-23 15:58:09,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:58:09,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:58:10,114 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_dcbfc694-32a3-415b-9335-cf27e6f13519/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2022-11-23 15:58:10,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:58:10,185 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:58:10,229 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_dcbfc694-32a3-415b-9335-cf27e6f13519/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i[47038,47051] [2022-11-23 15:58:10,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:58:10,335 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:58:10,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10 WrapperNode [2022-11-23 15:58:10,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:58:10,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:58:10,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:58:10,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:58:10,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,408 INFO L138 Inliner]: procedures = 278, calls = 61, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 206 [2022-11-23 15:58:10,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:58:10,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:58:10,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:58:10,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:58:10,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,452 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:58:10,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:58:10,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:58:10,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:58:10,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (1/1) ... [2022-11-23 15:58:10,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:58:10,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:58:10,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:58:10,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcbfc694-32a3-415b-9335-cf27e6f13519/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:58:10,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:58:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:58:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-23 15:58:10,563 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-23 15:58:10,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:58:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:58:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-23 15:58:10,564 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-23 15:58:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:58:10,564 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 15:58:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:58:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:58:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:58:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:58:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:58:10,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:58:10,567 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 15:58:10,830 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:58:10,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:58:11,500 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:58:11,512 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:58:11,513 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-23 15:58:11,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:11 BoogieIcfgContainer [2022-11-23 15:58:11,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:58:11,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:58:11,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:58:11,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:58:11,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:58:09" (1/3) ... [2022-11-23 15:58:11,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78779fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:11, skipping insertion in model container [2022-11-23 15:58:11,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:10" (2/3) ... [2022-11-23 15:58:11,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78779fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:11, skipping insertion in model container [2022-11-23 15:58:11,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:11" (3/3) ... [2022-11-23 15:58:11,527 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2022-11-23 15:58:11,539 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 15:58:11,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:58:11,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:58:11,553 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 15:58:11,734 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 15:58:11,797 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:58:11,818 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 221 transitions, 464 flow [2022-11-23 15:58:11,822 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 221 transitions, 464 flow [2022-11-23 15:58:11,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 221 transitions, 464 flow [2022-11-23 15:58:12,115 INFO L130 PetriNetUnfolder]: 52/418 cut-off events. [2022-11-23 15:58:12,116 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2022-11-23 15:58:12,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 418 events. 52/418 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1642 event pairs, 0 based on Foata normal form. 0/356 useless extension candidates. Maximal degree in co-relation 214. Up to 8 conditions per place. [2022-11-23 15:58:12,146 INFO L119 LiptonReduction]: Number of co-enabled transitions 15030 [2022-11-23 15:58:51,043 INFO L134 LiptonReduction]: Checked pairs total: 24417 [2022-11-23 15:58:51,044 INFO L136 LiptonReduction]: Total number of compositions: 184 [2022-11-23 15:58:51,053 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 53 places, 65 transitions, 152 flow [2022-11-23 15:58:51,245 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2179 states, 2170 states have (on average 3.223041474654378) internal successors, (6994), 2178 states have internal predecessors, (6994), 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) [2022-11-23 15:58:51,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:58:51,283 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;@6fc75b40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:58:51,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 15:58:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 2179 states, 2170 states have (on average 3.223041474654378) internal successors, (6994), 2178 states have internal predecessors, (6994), 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) [2022-11-23 15:58:51,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:58:51,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:58:51,307 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-23 15:58:51,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-11-23 15:58:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:58:51,313 INFO L85 PathProgramCache]: Analyzing trace with hash -64587686, now seen corresponding path program 1 times [2022-11-23 15:58:51,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:58:51,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732867776] [2022-11-23 15:58:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:58:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:58:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:58:51,520 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:58:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:58:51,604 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:58:51,612 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:58:51,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-23 15:58:51,616 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-11-23 15:58:51,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-23 15:58:51,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-11-23 15:58:51,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:58:51,623 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:58:51,629 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 15:58:51,629 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 15:58:51,744 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-23 15:58:51,757 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 15:58:51,758 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 311 places, 344 transitions, 736 flow [2022-11-23 15:58:51,759 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 311 places, 344 transitions, 736 flow [2022-11-23 15:58:51,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 344 transitions, 736 flow [2022-11-23 15:58:52,173 INFO L130 PetriNetUnfolder]: 191/1235 cut-off events. [2022-11-23 15:58:52,174 INFO L131 PetriNetUnfolder]: For 72/118 co-relation queries the response was YES. [2022-11-23 15:58:52,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 1235 events. 191/1235 cut-off events. For 72/118 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 7657 event pairs, 2 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 779. Up to 32 conditions per place. [2022-11-23 15:58:52,278 INFO L119 LiptonReduction]: Number of co-enabled transitions 59652 [2022-11-23 15:59:19,416 INFO L134 LiptonReduction]: Checked pairs total: 117127 [2022-11-23 15:59:19,417 INFO L136 LiptonReduction]: Total number of compositions: 287 [2022-11-23 15:59:19,418 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 115 transitions, 278 flow [2022-11-23 15:59:49,246 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 546365 states, 546326 states have (on average 5.591600985492179) internal successors, (3054837), 546364 states have internal predecessors, (3054837), 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) [2022-11-23 15:59:49,248 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:59:49,250 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;@6fc75b40, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:59:49,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-23 15:59:50,238 INFO L276 IsEmpty]: Start isEmpty. Operand has 546365 states, 546326 states have (on average 5.591600985492179) internal successors, (3054837), 546364 states have internal predecessors, (3054837), 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) [2022-11-23 15:59:50,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:59:50,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:59:50,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:59:50,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-11-23 15:59:50,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:59:50,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1963958508, now seen corresponding path program 1 times [2022-11-23 15:59:50,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:59:50,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101661202] [2022-11-23 15:59:50,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:59:50,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:59:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:59:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:59:50,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:59:50,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101661202] [2022-11-23 15:59:50,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101661202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:59:50,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:59:50,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:59:50,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624644990] [2022-11-23 15:59:50,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:59:50,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:59:50,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:59:50,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:59:50,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:59:51,829 INFO L87 Difference]: Start difference. First operand has 546365 states, 546326 states have (on average 5.591600985492179) internal successors, (3054837), 546364 states have internal predecessors, (3054837), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:00:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:00:08,843 INFO L93 Difference]: Finished difference Result 544074 states and 2477529 transitions. [2022-11-23 16:00:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:00:08,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 16:00:08,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted.