./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.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_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/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_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/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_aa0c0a53-5a60-4db9-9005-90b192ede2a9/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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:25,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:25,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:54:25,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:25,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:25,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:25,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:25,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:25,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:25,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:25,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:25,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:25,206 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:25,207 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:25,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:25,208 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:25,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:25,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:25,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:25,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:25,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:25,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:25,212 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:25,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:25,213 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:25,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:25,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:25,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:25,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:25,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:25,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:25,217 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:25,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:25,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:25,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:25,219 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:25,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:25,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:25,221 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:25,221 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_aa0c0a53-5a60-4db9-9005-90b192ede2a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2023-11-06 22:54:25,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:25,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:25,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:25,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:25,543 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:25,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2023-11-06 22:54:28,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:29,298 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:29,298 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2023-11-06 22:54:29,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/data/c1b6285b1/f87d061ab8e44a65bb2f51dfd573b7de/FLAG896787432 [2023-11-06 22:54:29,342 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/data/c1b6285b1/f87d061ab8e44a65bb2f51dfd573b7de [2023-11-06 22:54:29,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:29,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:29,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:29,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:29,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:29,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:29" (1/1) ... [2023-11-06 22:54:29,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b93221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:29, skipping insertion in model container [2023-11-06 22:54:29,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:29" (1/1) ... [2023-11-06 22:54:29,480 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:29,750 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_aa0c0a53-5a60-4db9-9005-90b192ede2a9/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2023-11-06 22:54:30,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:30,607 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:30,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug3.i","-S") [42] [2023-11-06 22:54:30,623 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_aa0c0a53-5a60-4db9-9005-90b192ede2a9/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2023-11-06 22:54:30,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:30,904 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:30,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30 WrapperNode [2023-11-06 22:54:30,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:30,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:30,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:30,907 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:30,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,311 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8541 [2023-11-06 22:54:31,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:31,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:31,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:31,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:31,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,323 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:31,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:31,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:31,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:31,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (1/1) ... [2023-11-06 22:54:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:31,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:31,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:31,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa0c0a53-5a60-4db9-9005-90b192ede2a9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-06 22:54:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-06 22:54:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-06 22:54:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-06 22:54:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:54:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-06 22:54:31,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-06 22:54:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-06 22:54:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-06 22:54:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-06 22:54:31,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-06 22:54:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-06 22:54:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-06 22:54:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-06 22:54:31,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-06 22:54:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-06 22:54:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-06 22:54:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-06 22:54:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-06 22:54:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-06 22:54:31,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-06 22:54:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:54:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-06 22:54:31,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-06 22:54:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-06 22:54:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-06 22:54:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-06 22:54:31,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-06 22:54:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-06 22:54:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-06 22:54:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-06 22:54:31,932 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-06 22:54:31,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-06 22:54:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-06 22:54:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-06 22:54:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-06 22:54:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:31,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-06 22:54:31,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-06 22:54:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-06 22:54:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-06 22:54:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-06 22:54:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-06 22:54:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-06 22:54:31,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-06 22:54:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-06 22:54:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-06 22:54:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-06 22:54:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-06 22:54:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-06 22:54:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-06 22:54:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-06 22:54:31,935 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-06 22:54:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-06 22:54:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-06 22:54:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-06 22:54:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-06 22:54:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-06 22:54:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-06 22:54:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-06 22:54:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-06 22:54:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-06 22:54:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-06 22:54:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-06 22:54:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-06 22:54:31,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-06 22:54:31,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-06 22:54:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-06 22:54:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-06 22:54:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-06 22:54:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-06 22:54:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-06 22:54:31,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-06 22:54:31,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-06 22:54:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-06 22:54:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-06 22:54:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-06 22:54:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-06 22:54:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-06 22:54:31,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-06 22:54:31,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-06 22:54:31,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-06 22:54:31,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-06 22:54:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-06 22:54:31,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-06 22:54:31,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-06 22:54:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-06 22:54:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-06 22:54:31,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-06 22:54:31,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-06 22:54:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-06 22:54:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:32,552 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:32,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:58,006 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:58,032 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:58,032 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:54:58,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:58 BoogieIcfgContainer [2023-11-06 22:54:58,038 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:58,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:58,041 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:58,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:58,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:29" (1/3) ... [2023-11-06 22:54:58,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6143d564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:58, skipping insertion in model container [2023-11-06 22:54:58,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:30" (2/3) ... [2023-11-06 22:54:58,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6143d564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:58, skipping insertion in model container [2023-11-06 22:54:58,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:58" (3/3) ... [2023-11-06 22:54:58,049 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2023-11-06 22:54:58,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:58,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:54:58,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:58,221 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;@69f78464, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:58,222 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:54:58,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2023-11-06 22:54:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-06 22:54:58,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:58,272 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 22:54:58,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:58,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:58,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2023-11-06 22:54:58,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:58,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888468255] [2023-11-06 22:54:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms