./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu --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 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:14,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:14,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:04:14,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:14,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:14,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:14,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:14,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:14,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:14,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:14,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:14,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:14,920 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:14,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:14,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:14,923 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:14,923 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:14,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:14,924 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:14,924 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:14,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:14,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:14,926 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:14,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:14,927 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:14,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:14,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:14,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:14,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:14,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:14,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:14,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:14,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:14,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:14,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:14,932 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:14,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:14,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:14,933 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:14,933 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_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c11dfbc24d8e2936a0720b93d6e580e096b076c7149ef4cbc8369f1ef818941 [2023-11-19 08:04:15,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:15,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:15,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:15,283 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:15,284 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:15,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2023-11-19 08:04:18,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:19,092 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:19,093 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c [2023-11-19 08:04:19,124 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/data/1968f456d/445a23114362422ea6b8890ce25cc2c6/FLAG5af9366d5 [2023-11-19 08:04:19,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/data/1968f456d/445a23114362422ea6b8890ce25cc2c6 [2023-11-19 08:04:19,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:19,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:19,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:19,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:19,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:19,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:19" (1/1) ... [2023-11-19 08:04:19,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b726570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:19, skipping insertion in model container [2023-11-19 08:04:19,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:19" (1/1) ... [2023-11-19 08:04:19,258 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:19,526 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_bbbc4662-84b4-43fa-8c58-eead92bd23f1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2023-11-19 08:04:20,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:20,275 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:20,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok3.i","-S") [42] [2023-11-19 08:04:20,290 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_bbbc4662-84b4-43fa-8c58-eead92bd23f1/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-1.c[1870,1883] [2023-11-19 08:04:20,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:20,617 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:20,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20 WrapperNode [2023-11-19 08:04:20,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:20,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:20,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:20,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:20,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:20,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,207 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8541 [2023-11-19 08:04:21,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:21,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:21,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:21,209 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:21,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:21,599 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:21,599 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:21,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:21,600 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (1/1) ... [2023-11-19 08:04:21,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:21,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:21,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:21,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbbc4662-84b4-43fa-8c58-eead92bd23f1/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-19 08:04:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-19 08:04:21,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-19 08:04:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-19 08:04:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:04:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 08:04:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 08:04:21,684 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 08:04:21,684 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 08:04:21,685 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-19 08:04:21,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-19 08:04:21,686 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-19 08:04:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-19 08:04:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-19 08:04:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-19 08:04:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-19 08:04:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-19 08:04:21,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-19 08:04:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-19 08:04:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 08:04:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 08:04:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:04:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 08:04:21,689 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 08:04:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-19 08:04:21,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-19 08:04:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-19 08:04:21,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-19 08:04:21,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-19 08:04:21,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-19 08:04:21,691 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-19 08:04:21,691 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-19 08:04:21,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-19 08:04:21,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-19 08:04:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 08:04:21,693 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 08:04:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 08:04:21,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 08:04:21,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-19 08:04:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-19 08:04:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-19 08:04:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-19 08:04:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-19 08:04:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-19 08:04:21,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 08:04:21,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 08:04:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-19 08:04:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-19 08:04:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 08:04:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 08:04:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-19 08:04:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-19 08:04:21,695 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-19 08:04:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-19 08:04:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-19 08:04:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-19 08:04:21,696 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-19 08:04:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-19 08:04:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-19 08:04:21,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-19 08:04:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-19 08:04:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-19 08:04:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 08:04:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 08:04:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-19 08:04:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-19 08:04:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-19 08:04:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-19 08:04:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-19 08:04:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-19 08:04:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-19 08:04:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-19 08:04:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-19 08:04:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-19 08:04:21,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-19 08:04:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-19 08:04:21,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-19 08:04:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-19 08:04:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-19 08:04:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-19 08:04:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 08:04:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 08:04:21,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-19 08:04:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-19 08:04:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-19 08:04:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-19 08:04:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-19 08:04:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-19 08:04:21,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-19 08:04:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-19 08:04:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:22,362 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:22,365 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:50,176 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:50,209 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:50,209 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 08:04:50,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:50 BoogieIcfgContainer [2023-11-19 08:04:50,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:50,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:50,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:50,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:50,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:19" (1/3) ... [2023-11-19 08:04:50,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c245721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:50, skipping insertion in model container [2023-11-19 08:04:50,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:20" (2/3) ... [2023-11-19 08:04:50,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c245721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:50, skipping insertion in model container [2023-11-19 08:04:50,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:50" (3/3) ... [2023-11-19 08:04:50,238 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-1.c [2023-11-19 08:04:50,259 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:50,260 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:04:50,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:50,374 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;@52bf53db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:50,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:04:50,389 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) [2023-11-19 08:04:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 08:04:50,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:50,412 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] [2023-11-19 08:04:50,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:50,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:50,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2023-11-19 08:04:50,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:50,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451253638] [2023-11-19 08:04:50,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:50,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms