./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl --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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:14:33,525 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:14:33,645 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:14:33,651 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:14:33,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:14:33,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:14:33,692 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:14:33,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:14:33,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:14:33,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:14:33,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:14:33,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:14:33,701 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:14:33,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:14:33,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:14:33,703 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:14:33,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:14:33,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:14:33,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:14:33,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:14:33,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:14:33,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:14:33,706 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:14:33,707 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:14:33,707 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:14:33,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:14:33,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:14:33,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:14:33,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:33,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:14:33,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:14:33,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:14:33,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:14:33,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:14:33,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:14:33,711 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:14:33,711 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:14:33,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:14:33,712 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:14:33,712 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_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2023-11-12 02:14:33,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:14:34,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:14:34,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:14:34,008 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:14:34,009 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:14:34,010 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-12 02:14:37,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:14:37,737 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:14:37,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-12 02:14:37,771 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/data/6d83ecf0d/6557015f748349118e1bfc7e5e928332/FLAGf4fda93d8 [2023-11-12 02:14:37,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/data/6d83ecf0d/6557015f748349118e1bfc7e5e928332 [2023-11-12 02:14:37,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:14:37,800 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:14:37,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:37,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:14:37,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:14:37,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:37" (1/1) ... [2023-11-12 02:14:37,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e22e83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:37, skipping insertion in model container [2023-11-12 02:14:37,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:37" (1/1) ... [2023-11-12 02:14:37,923 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:14:38,149 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_949f9e35-af93-4b14-93ee-3f18540841fb/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-12 02:14:38,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:38,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:14:38,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok2.i","-S") [42] [2023-11-12 02:14:38,931 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_949f9e35-af93-4b14-93ee-3f18540841fb/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-12 02:14:39,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:39,315 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:14:39,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39 WrapperNode [2023-11-12 02:14:39,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:39,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:39,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:14:39,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:14:39,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:39,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:39,737 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8386 [2023-11-12 02:14:39,738 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:39,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:14:39,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:14:39,739 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:14:39,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:39,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:39,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:39,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:40,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:40,054 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:40,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:40,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:40,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:14:40,166 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:14:40,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:14:40,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:14:40,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (1/1) ... [2023-11-12 02:14:40,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:40,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:40,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:40,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_949f9e35-af93-4b14-93ee-3f18540841fb/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:14:40,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-12 02:14:40,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-12 02:14:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-12 02:14:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-12 02:14:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:14:40,297 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-12 02:14:40,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-12 02:14:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-12 02:14:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-12 02:14:40,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-12 02:14:40,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-12 02:14:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-12 02:14:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-12 02:14:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-12 02:14:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-12 02:14:40,300 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-12 02:14:40,300 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-12 02:14:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-12 02:14:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-12 02:14:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-12 02:14:40,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-12 02:14:40,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:14:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-12 02:14:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-12 02:14:40,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-12 02:14:40,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-12 02:14:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-12 02:14:40,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-12 02:14:40,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-12 02:14:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-12 02:14:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-12 02:14:40,304 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-12 02:14:40,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-12 02:14:40,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-12 02:14:40,305 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-12 02:14:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-12 02:14:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:14:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-12 02:14:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-12 02:14:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-12 02:14:40,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-12 02:14:40,306 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-12 02:14:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-12 02:14:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-12 02:14:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-12 02:14:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-12 02:14:40,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-12 02:14:40,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-12 02:14:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-12 02:14:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-12 02:14:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-12 02:14:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-12 02:14:40,308 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-12 02:14:40,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-12 02:14:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-12 02:14:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-12 02:14:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-12 02:14:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-12 02:14:40,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-12 02:14:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-12 02:14:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-12 02:14:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-12 02:14:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-12 02:14:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-12 02:14:40,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-12 02:14:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-12 02:14:40,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-12 02:14:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-12 02:14:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-12 02:14:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-12 02:14:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-12 02:14:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-12 02:14:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-12 02:14:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-12 02:14:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-12 02:14:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-12 02:14:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-12 02:14:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-12 02:14:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-12 02:14:40,315 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-12 02:14:40,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-12 02:14:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-12 02:14:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-12 02:14:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-12 02:14:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-12 02:14:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-12 02:14:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-12 02:14:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-12 02:14:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-12 02:14:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-12 02:14:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-12 02:14:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:14:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-12 02:14:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-12 02:14:40,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:14:40,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:14:40,863 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:14:40,867 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:06,784 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:06,826 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:06,826 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:15:06,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:06 BoogieIcfgContainer [2023-11-12 02:15:06,833 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:06,838 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:06,838 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:06,842 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:06,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:14:37" (1/3) ... [2023-11-12 02:15:06,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdf03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:06, skipping insertion in model container [2023-11-12 02:15:06,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:39" (2/3) ... [2023-11-12 02:15:06,847 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fdf03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:06, skipping insertion in model container [2023-11-12 02:15:06,847 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:06" (3/3) ... [2023-11-12 02:15:06,849 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2023-11-12 02:15:06,874 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:06,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:15:07,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:07,017 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;@7df17777, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:07,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:15:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-12 02:15:07,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-12 02:15:07,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:15:07,058 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] [2023-11-12 02:15:07,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:15:07,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2023-11-12 02:15:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:07,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090092049] [2023-11-12 02:15:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms