./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:58,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:59,021 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:07:59,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:59,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:59,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:59,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:59,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:59,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:59,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:59,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:59,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:59,060 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:59,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:59,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:07:59,062 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:07:59,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:59,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:07:59,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:59,064 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:07:59,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:59,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:07:59,066 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:07:59,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:07:59,067 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:59,068 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:59,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:59,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:59,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:59,070 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:59,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:59,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:07:59,072 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:07:59,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:07:59,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:59,074 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:07:59,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:59,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:59,075 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:59,075 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_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2023-11-06 23:07:59,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:59,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:59,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:59,358 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:59,358 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:59,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2023-11-06 23:08:02,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:08:03,054 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:08:03,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2023-11-06 23:08:03,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/data/156c49819/64f1dae114124072ae5adf46ff2937b1/FLAGfb1483343 [2023-11-06 23:08:03,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/data/156c49819/64f1dae114124072ae5adf46ff2937b1 [2023-11-06 23:08:03,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:08:03,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:08:03,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:03,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:08:03,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:08:03,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d030ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03, skipping insertion in model container [2023-11-06 23:08:03,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,271 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:08:03,476 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_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2023-11-06 23:08:04,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:04,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:08:04,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug2.i","-S") [42] [2023-11-06 23:08:04,344 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_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2023-11-06 23:08:04,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:04,691 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:08:04,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04 WrapperNode [2023-11-06 23:08:04,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:04,694 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:04,694 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:08:04,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:08:04,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:04,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,155 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8419 [2023-11-06 23:08:05,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:05,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:08:05,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:08:05,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:08:05,167 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,167 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,529 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,571 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:08:05,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:08:05,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:08:05,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:08:05,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (1/1) ... [2023-11-06 23:08:05,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:05,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:05,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:08:05,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5cf17e89-6ae6-4d15-b2a1-c2eba4ef2307/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:08:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-06 23:08:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-06 23:08:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-06 23:08:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-06 23:08:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:08:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-06 23:08:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-06 23:08:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-06 23:08:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-06 23:08:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-06 23:08:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-06 23:08:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-06 23:08:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-06 23:08:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-06 23:08:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-06 23:08:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-06 23:08:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-06 23:08:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-06 23:08:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-06 23:08:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-06 23:08:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-06 23:08:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:08:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-06 23:08:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-06 23:08:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-06 23:08:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-06 23:08:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-06 23:08:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-06 23:08:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-06 23:08:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-06 23:08:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-06 23:08:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-06 23:08:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-06 23:08:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-06 23:08:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-06 23:08:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-06 23:08:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:08:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-06 23:08:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-06 23:08:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-06 23:08:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-06 23:08:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-06 23:08:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-06 23:08:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-06 23:08:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-06 23:08:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-06 23:08:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-06 23:08:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-06 23:08:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-06 23:08:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-06 23:08:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-06 23:08:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-06 23:08:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-06 23:08:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-06 23:08:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-06 23:08:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-06 23:08:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-06 23:08:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-06 23:08:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-06 23:08:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-06 23:08:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-06 23:08:05,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-06 23:08:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-06 23:08:05,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-06 23:08:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-06 23:08:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-06 23:08:05,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-06 23:08:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-06 23:08:05,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-06 23:08:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-06 23:08:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-06 23:08:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-06 23:08:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-06 23:08:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-06 23:08:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-06 23:08:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-06 23:08:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-06 23:08:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-06 23:08:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-06 23:08:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-06 23:08:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-06 23:08:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-06 23:08:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-06 23:08:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-06 23:08:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-06 23:08:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-06 23:08:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-06 23:08:05,783 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-06 23:08:05,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-06 23:08:05,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:08:05,784 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-06 23:08:05,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-06 23:08:05,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:08:05,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:08:06,364 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:08:06,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:29,026 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:29,066 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:29,066 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 23:08:29,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:29 BoogieIcfgContainer [2023-11-06 23:08:29,073 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:29,080 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:29,080 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:29,084 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:29,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:08:03" (1/3) ... [2023-11-06 23:08:29,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c969e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:29, skipping insertion in model container [2023-11-06 23:08:29,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:04" (2/3) ... [2023-11-06 23:08:29,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c969e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:29, skipping insertion in model container [2023-11-06 23:08:29,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:29" (3/3) ... [2023-11-06 23:08:29,090 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2023-11-06 23:08:29,112 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:29,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:08:29,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:29,259 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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@19540e2d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:29,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:08:29,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-06 23:08:29,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-06 23:08:29,319 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:29,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:29,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:29,328 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2023-11-06 23:08:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:29,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356500512] [2023-11-06 23:08:29,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:29,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms