./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17a6dd75e60112a7f7af78ca3548f5d14d93f1e305c1fc4e0acf996889e6f17b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:06:45,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:06:45,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 22:06:45,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:06:45,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:06:45,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:06:45,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:06:45,627 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:06:45,628 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 22:06:45,628 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 22:06:45,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:06:45,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:06:45,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:06:45,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:06:45,632 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:06:45,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:06:45,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:06:45,634 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:06:45,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:06:45,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:06:45,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:06:45,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:06:45,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:06:45,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:06:45,637 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:06:45,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:06:45,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:06:45,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:06:45,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:06:45,655 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:06:45,655 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:06:45,656 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:06:45,656 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:06:45,656 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:06:45,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:06:45,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:06:45,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:06:45,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:06:45,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 22:06:45,658 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:06:45,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 22:06:45,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:06:45,659 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17a6dd75e60112a7f7af78ca3548f5d14d93f1e305c1fc4e0acf996889e6f17b [2023-11-24 22:06:45,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:06:45,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:06:45,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:06:45,976 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:06:45,976 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:06:45,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c [2023-11-24 22:06:49,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:06:49,770 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:06:49,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c [2023-11-24 22:06:49,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/data/0685a4e3a/a5e51b051cf74855bbba48e7f878d3c8/FLAG186b840d8 [2023-11-24 22:06:49,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/data/0685a4e3a/a5e51b051cf74855bbba48e7f878d3c8 [2023-11-24 22:06:49,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:06:49,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:06:49,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:06:49,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:06:49,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:06:49,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:06:49" (1/1) ... [2023-11-24 22:06:49,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeadd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:49, skipping insertion in model container [2023-11-24 22:06:49,901 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:06:49" (1/1) ... [2023-11-24 22:06:50,164 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:06:50,491 WARN L240 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_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c[2275,2288] [2023-11-24 22:06:51,909 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:06:51,943 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:06:51,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok3.i","-S") [51] [2023-11-24 22:06:51,971 WARN L240 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_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c[2275,2288] [2023-11-24 22:06:53,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:06:53,411 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:06:53,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53 WrapperNode [2023-11-24 22:06:53,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:06:53,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:06:53,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:06:53,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:06:53,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:53,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:55,957 INFO L138 Inliner]: procedures = 62, calls = 18852, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 41393 [2023-11-24 22:06:55,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:06:55,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:06:55,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:06:55,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:06:55,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:55,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:56,351 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:56,742 INFO L175 MemorySlicer]: Split 14458 memory accesses to 22 slices as follows [2, 2, 193, 8, 17, 9, 2689, 3717, 2400, 1676, 1252, 852, 218, 322, 218, 322, 218, 322, 2, 8, 7, 4]. 26 percent of accesses are in the largest equivalence class. The 136 initializations are split as follows [2, 0, 96, 0, 8, 4, 0, 0, 8, 8, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0]. The 888 writes are split as follows [0, 1, 1, 4, 1, 1, 97, 97, 8, 8, 4, 4, 110, 108, 110, 108, 110, 108, 1, 4, 3, 0]. [2023-11-24 22:06:56,742 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:56,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:57,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:57,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:57,745 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:57,829 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:58,220 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:06:58,221 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:06:58,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:06:58,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:06:58,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (1/1) ... [2023-11-24 22:06:58,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 22:06:58,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 22:06:58,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 22:06:58,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef46cbcf-6794-4701-aec4-5bb1ebd1e4ee/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 22:06:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:06:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-24 22:06:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-24 22:06:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-24 22:06:58,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-24 22:06:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:06:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-24 22:06:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-24 22:06:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-24 22:06:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-24 22:06:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-11-24 22:06:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-11-24 22:06:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-24 22:06:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-24 22:06:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 22:06:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 22:06:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-24 22:06:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-24 22:06:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-24 22:06:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-24 22:06:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-24 22:06:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-24 22:06:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-24 22:06:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-24 22:06:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-24 22:06:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-24 22:06:58,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-24 22:06:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-24 22:06:58,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-24 22:06:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-24 22:06:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-24 22:06:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-24 22:06:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-24 22:06:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-24 22:06:58,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-24 22:06:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-24 22:06:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-24 22:06:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-24 22:06:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-24 22:06:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-24 22:06:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-24 22:06:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-24 22:06:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-24 22:06:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-24 22:06:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:06:58,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-24 22:06:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-24 22:06:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 22:06:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 22:06:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 22:06:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 22:06:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-24 22:06:58,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-24 22:06:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-24 22:06:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-24 22:06:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-24 22:06:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-24 22:06:58,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-24 22:06:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-24 22:06:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-24 22:06:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-24 22:06:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-24 22:06:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-24 22:06:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-24 22:06:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-24 22:06:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-24 22:06:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-24 22:06:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-24 22:06:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-24 22:06:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-24 22:06:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-24 22:06:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-24 22:06:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-24 22:06:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-11-24 22:06:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-11-24 22:06:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 22:06:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 22:06:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 22:06:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 22:06:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 22:06:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 22:06:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-24 22:06:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-24 22:06:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-24 22:06:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-24 22:06:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-24 22:06:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-24 22:06:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-24 22:06:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-24 22:06:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-24 22:06:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-24 22:06:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-24 22:06:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-24 22:06:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-24 22:06:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-24 22:06:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-24 22:06:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-24 22:06:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-24 22:06:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-24 22:06:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:06:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:06:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-24 22:06:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-24 22:06:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-24 22:06:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-24 22:06:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-24 22:06:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-24 22:07:00,681 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:07:00,687 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:07:33,460 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:07:34,478 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:07:34,479 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:07:34,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:34 BoogieIcfgContainer [2023-11-24 22:07:34,486 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:07:34,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:07:34,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:07:34,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:07:34,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:06:49" (1/3) ... [2023-11-24 22:07:34,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186a25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:34, skipping insertion in model container [2023-11-24 22:07:34,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:06:53" (2/3) ... [2023-11-24 22:07:34,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186a25b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:07:34, skipping insertion in model container [2023-11-24 22:07:34,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:07:34" (3/3) ... [2023-11-24 22:07:34,504 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M4.c [2023-11-24 22:07:34,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:07:34,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 22:07:34,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 22:07:34,876 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@25017573, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:07:34,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 22:07:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 12454 states, 8091 states have (on average 1.3128167099246075) internal successors, (10622), 8203 states have internal predecessors, (10622), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4343), 4341 states have call predecessors, (4343), 4343 states have call successors, (4343) [2023-11-24 22:07:35,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5254 [2023-11-24 22:07:35,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 22:07:35,730 INFO L195 NwaCegarLoop]: trace histogram [444, 444, 444, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 22:07:35,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:07:35,739 INFO L85 PathProgramCache]: Analyzing trace with hash -2146243662, now seen corresponding path program 1 times [2023-11-24 22:07:35,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:07:35,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816931604] [2023-11-24 22:07:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:07:35,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms