./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.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_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/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_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/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_7be0bb32-e75b-496b-84a0-7166a0f33c98/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 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:27:59,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:27:59,416 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:27:59,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:27:59,424 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:27:59,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:27:59,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:27:59,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:27:59,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:27:59,468 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:27:59,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:27:59,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:27:59,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:27:59,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:27:59,473 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:27:59,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:27:59,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:27:59,475 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:27:59,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:27:59,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:27:59,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:27:59,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:27:59,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:27:59,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:27:59,480 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:27:59,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:27:59,481 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:27:59,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:27:59,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:27:59,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:27:59,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:27:59,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:27:59,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:27:59,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:27:59,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:27:59,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:27:59,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:27:59,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:27:59,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:27:59,487 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:27:59,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:27:59,488 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:27:59,488 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_7be0bb32-e75b-496b-84a0-7166a0f33c98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e [2023-11-24 21:27:59,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:27:59,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:27:59,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:27:59,844 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:27:59,844 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:27:59,846 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-11-24 21:28:03,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:28:03,829 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:28:03,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c [2023-11-24 21:28:03,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/data/6d7d6fa84/f4b4b51c205e4705a6b971f7ea343ce0/FLAG646ae7cc6 [2023-11-24 21:28:03,898 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/data/6d7d6fa84/f4b4b51c205e4705a6b971f7ea343ce0 [2023-11-24 21:28:03,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:28:03,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:28:03,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:03,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:28:03,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:28:03,915 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:03" (1/1) ... [2023-11-24 21:28:03,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582709f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:03, skipping insertion in model container [2023-11-24 21:28:03,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:28:03" (1/1) ... [2023-11-24 21:28:04,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:28:04,503 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_7be0bb32-e75b-496b-84a0-7166a0f33c98/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2023-11-24 21:28:05,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:05,918 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:28:05,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42] [2023-11-24 21:28:05,948 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_7be0bb32-e75b-496b-84a0-7166a0f33c98/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c[1674,1687] [2023-11-24 21:28:07,285 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:28:07,313 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:28:07,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07 WrapperNode [2023-11-24 21:28:07,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:28:07,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:28:07,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:28:07,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:28:07,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:07,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:10,314 INFO L138 Inliner]: procedures = 57, calls = 17866, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39744 [2023-11-24 21:28:10,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:28:10,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:28:10,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:28:10,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:28:10,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:10,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:10,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:11,152 INFO L175 MemorySlicer]: Split 13700 memory accesses to 17 slices as follows [2, 4, 2, 2689, 3717, 2400, 1676, 1252, 8, 852, 219, 322, 218, 322, 8, 7, 2]. 27 percent of accesses are in the largest equivalence class. The 28 initializations are split as follows [2, 0, 0, 0, 0, 8, 8, 4, 0, 4, 0, 0, 0, 0, 0, 2, 0]. The 667 writes are split as follows [0, 0, 1, 97, 97, 8, 8, 4, 4, 4, 110, 108, 110, 108, 4, 3, 1]. [2023-11-24 21:28:11,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:11,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:12,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:12,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:12,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:12,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:12,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:28:12,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:28:12,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:28:12,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:28:12,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (1/1) ... [2023-11-24 21:28:12,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:28:12,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:28:12,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:28:12,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be0bb32-e75b-496b-84a0-7166a0f33c98/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:28:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:28:12,840 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-24 21:28:12,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-24 21:28:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-24 21:28:12,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-24 21:28:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:28:12,841 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-24 21:28:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-24 21:28:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-24 21:28:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-24 21:28:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-24 21:28:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-24 21:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 21:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 21:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-24 21:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-24 21:28:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-24 21:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-24 21:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-24 21:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-24 21:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-24 21:28:12,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-24 21:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-24 21:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-24 21:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-24 21:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-24 21:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-24 21:28:12,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-24 21:28:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-24 21:28:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-24 21:28:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-24 21:28:12,846 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-24 21:28:12,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-24 21:28:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-24 21:28:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-24 21:28:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-24 21:28:12,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-24 21:28:12,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:28:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-24 21:28:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-24 21:28:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:28:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:28:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:28:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 21:28:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-24 21:28:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-24 21:28:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-24 21:28:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-24 21:28:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-24 21:28:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-24 21:28:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-24 21:28:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-24 21:28:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-24 21:28:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-24 21:28:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-24 21:28:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-24 21:28:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-24 21:28:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-24 21:28:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-24 21:28:12,851 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 21:28:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 21:28:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:28:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:28:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:28:12,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-24 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-24 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-24 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-24 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-24 21:28:12,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-24 21:28:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-24 21:28:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-24 21:28:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-24 21:28:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-24 21:28:12,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-24 21:28:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-24 21:28:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-24 21:28:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:28:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:28:12,855 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-24 21:28:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-24 21:28:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-24 21:28:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-24 21:28:12,856 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-24 21:28:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-24 21:28:14,941 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:28:14,946 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:28:47,672 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:28:48,519 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:28:48,519 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 21:28:48,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:28:48 BoogieIcfgContainer [2023-11-24 21:28:48,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:28:48,530 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:28:48,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:28:48,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:28:48,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:28:03" (1/3) ... [2023-11-24 21:28:48,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a8161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:28:48, skipping insertion in model container [2023-11-24 21:28:48,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:28:07" (2/3) ... [2023-11-24 21:28:48,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154a8161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:28:48, skipping insertion in model container [2023-11-24 21:28:48,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:28:48" (3/3) ... [2023-11-24 21:28:48,539 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c [2023-11-24 21:28:48,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:28:48,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:28:48,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:28:48,858 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;@1afda977, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:28:48,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:28:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 11980 states, 7845 states have (on average 1.3209687699171446) internal successors, (10363), 7958 states have internal predecessors, (10363), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) [2023-11-24 21:28:49,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4611 [2023-11-24 21:28:49,622 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:28:49,627 INFO L195 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-11-24 21:28:49,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:28:49,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:28:49,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1972581055, now seen corresponding path program 1 times [2023-11-24 21:28:49,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:28:49,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414240675] [2023-11-24 21:28:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:28:49,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms