./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.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_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/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_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/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_74130e22-3ecf-4200-9c68-976ec8addfa0/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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:37:45,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:37:45,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:37:45,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:37:45,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:37:45,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:37:45,764 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:37:45,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:37:45,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:37:45,772 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:37:45,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:37:45,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:37:45,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:37:45,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:37:45,777 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:37:45,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:37:45,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:37:45,779 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:37:45,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:37:45,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:37:45,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:37:45,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:37:45,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:37:45,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:37:45,782 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:37:45,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:37:45,783 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:37:45,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:37:45,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:37:45,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:37:45,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:37:45,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:37:45,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:37:45,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:37:45,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:37:45,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:37:45,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:37:45,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:37:45,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:37:45,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:37:45,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:37:45,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:37:45,789 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_74130e22-3ecf-4200-9c68-976ec8addfa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2023-11-24 21:37:46,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:37:46,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:37:46,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:37:46,156 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:37:46,157 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:37:46,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2023-11-24 21:37:49,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:37:49,866 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:37:49,867 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2023-11-24 21:37:49,940 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/data/7a8c2c433/1fb2d0ab42e74b39ba4e24ae9f37d18e/FLAGedc7bfa61 [2023-11-24 21:37:49,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/data/7a8c2c433/1fb2d0ab42e74b39ba4e24ae9f37d18e [2023-11-24 21:37:49,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:37:49,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:37:49,969 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:37:49,969 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:37:49,975 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:37:49,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:37:49" (1/1) ... [2023-11-24 21:37:49,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eb87b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:49, skipping insertion in model container [2023-11-24 21:37:49,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:37:49" (1/1) ... [2023-11-24 21:37:50,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:37:50,499 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_74130e22-3ecf-4200-9c68-976ec8addfa0/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2023-11-24 21:37:51,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:37:51,996 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:37:52,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [51] [2023-11-24 21:37:52,026 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_74130e22-3ecf-4200-9c68-976ec8addfa0/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208] [2023-11-24 21:37:53,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:37:53,300 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:37:53,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53 WrapperNode [2023-11-24 21:37:53,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:37:53,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:37:53,303 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:37:53,303 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:37:53,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:53,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:56,170 INFO L138 Inliner]: procedures = 58, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40193 [2023-11-24 21:37:56,170 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:37:56,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:37:56,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:37:56,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:37:56,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:56,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:56,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:57,069 INFO L175 MemorySlicer]: Split 13918 memory accesses to 20 slices as follows [2, 2, 193, 8, 17, 9, 2689, 3717, 2400, 4, 1676, 1252, 852, 218, 322, 218, 322, 2, 8, 7]. 27 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, 0, 8, 4, 4, 0, 0, 0, 0, 0, 0, 2]. The 670 writes are split as follows [0, 1, 1, 4, 1, 1, 97, 97, 8, 0, 8, 4, 4, 110, 108, 110, 108, 1, 4, 3]. [2023-11-24 21:37:57,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:57,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:57,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:58,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:58,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:58,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:58,620 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:37:58,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:37:58,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:37:58,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:37:58,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (1/1) ... [2023-11-24 21:37:58,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:37:58,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:37:58,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:37:58,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74130e22-3ecf-4200-9c68-976ec8addfa0/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:37:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:37:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-24 21:37:58,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-24 21:37:58,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-24 21:37:58,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-24 21:37:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:37:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-24 21:37:58,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-24 21:37:58,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-24 21:37:58,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-24 21:37:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-24 21:37:58,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-24 21:37:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-24 21:37:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-24 21:37:58,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-24 21:37:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-24 21:37:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-24 21:37:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-24 21:37:58,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-24 21:37:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-24 21:37:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-24 21:37:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-24 21:37:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-24 21:37:58,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-24 21:37:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-24 21:37:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-24 21:37:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-24 21:37:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-24 21:37:58,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-24 21:37:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-24 21:37:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-24 21:37:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-24 21:37:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-24 21:37:58,710 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-24 21:37:58,710 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-24 21:37:58,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-24 21:37:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-24 21:37:58,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-24 21:37:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-24 21:37:58,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-24 21:37:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:37:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-24 21:37:58,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-11-24 21:37:58,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-24 21:37:58,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-24 21:37:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-24 21:37:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-24 21:37:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-24 21:37:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-24 21:37:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-24 21:37:58,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-24 21:37:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-24 21:37:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-24 21:37:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-24 21:37:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-24 21:37:58,714 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-24 21:37:58,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-24 21:37:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-24 21:37:58,715 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-24 21:37:58,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 21:37:58,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 21:37:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-24 21:37:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-24 21:37:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-24 21:37:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-24 21:37:58,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-24 21:37:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-24 21:37:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-24 21:37:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-24 21:37:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-24 21:37:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-24 21:37:58,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-24 21:37:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-24 21:37:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-24 21:37:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-24 21:37:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-24 21:37:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-24 21:37:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-24 21:37:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-24 21:37:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-24 21:37:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-24 21:37:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:37:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:37:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-24 21:37:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-24 21:37:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-24 21:37:58,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-24 21:37:58,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-24 21:37:58,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-24 21:38:00,823 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:38:00,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:38:31,172 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:38:32,350 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:38:32,351 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 21:38:32,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:38:32 BoogieIcfgContainer [2023-11-24 21:38:32,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:38:32,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:38:32,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:38:32,365 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:38:32,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:37:49" (1/3) ... [2023-11-24 21:38:32,366 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c586d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:38:32, skipping insertion in model container [2023-11-24 21:38:32,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:37:53" (2/3) ... [2023-11-24 21:38:32,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c586d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:38:32, skipping insertion in model container [2023-11-24 21:38:32,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:38:32" (3/3) ... [2023-11-24 21:38:32,369 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2023-11-24 21:38:32,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:38:32,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:38:32,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:38:32,726 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;@6d33f0ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:38:32,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:38:32,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 12207 states, 7963 states have (on average 1.3169659676001506) internal successors, (10487), 8076 states have internal predecessors, (10487), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2023-11-24 21:38:33,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4612 [2023-11-24 21:38:33,470 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:38:33,474 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 21:38:33,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:38:33,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:38:33,485 INFO L85 PathProgramCache]: Analyzing trace with hash -19061766, now seen corresponding path program 1 times [2023-11-24 21:38:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 21:38:33,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310064289] [2023-11-24 21:38:33,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:38:33,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms