./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9 --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a1eb342ebadad5f5d28e5fd9eb503795cab40e31c0a35c7b5f4b6a3c65ed5e13 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 05:02:21,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 05:02:21,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 05:02:21,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 05:02:21,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 05:02:21,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 05:02:21,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 05:02:21,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 05:02:21,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 05:02:21,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 05:02:21,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 05:02:21,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 05:02:21,215 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 05:02:21,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 05:02:21,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 05:02:21,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 05:02:21,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 05:02:21,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 05:02:21,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 05:02:21,219 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 05:02:21,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 05:02:21,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 05:02:21,221 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 05:02:21,222 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 05:02:21,222 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 05:02:21,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 05:02:21,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:02:21,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 05:02:21,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 05:02:21,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 05:02:21,225 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 05:02:21,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 05:02:21,225 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 05:02:21,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1eb342ebadad5f5d28e5fd9eb503795cab40e31c0a35c7b5f4b6a3c65ed5e13 [2023-12-03 05:02:21,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 05:02:21,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 05:02:21,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 05:02:21,465 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 05:02:21,466 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 05:02:21,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2023-12-03 05:02:24,165 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 05:02:24,467 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 05:02:24,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c [2023-12-03 05:02:24,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/data/633c8f400/847bf1cf759b4f8b9c21f8c947efcec4/FLAG0fd80c0ca [2023-12-03 05:02:24,498 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/data/633c8f400/847bf1cf759b4f8b9c21f8c947efcec4 [2023-12-03 05:02:24,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 05:02:24,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 05:02:24,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 05:02:24,503 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 05:02:24,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 05:02:24,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:02:24" (1/1) ... [2023-12-03 05:02:24,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b3c179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:24, skipping insertion in model container [2023-12-03 05:02:24,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:02:24" (1/1) ... [2023-12-03 05:02:24,582 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 05:02:24,748 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_dabb47f7-56b0-463f-9eeb-c5e7dddef430/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c[1682,1695] [2023-12-03 05:02:25,058 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:02:25,073 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 05:02:25,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [42] [2023-12-03 05:02:25,090 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_dabb47f7-56b0-463f-9eeb-c5e7dddef430/sv-benchmarks/c/seq-mthreaded/rekh_nxt.2.M1-2.c[1682,1695] [2023-12-03 05:02:25,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:02:25,289 INFO L206 MainTranslator]: Completed translation [2023-12-03 05:02:25,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25 WrapperNode [2023-12-03 05:02:25,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 05:02:25,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 05:02:25,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 05:02:25,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 05:02:25,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,556 INFO L138 Inliner]: procedures = 56, calls = 2059, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 4177 [2023-12-03 05:02:25,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 05:02:25,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 05:02:25,557 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 05:02:25,557 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 05:02:25,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 05:02:25,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 05:02:25,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 05:02:25,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 05:02:25,782 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:25" (1/1) ... [2023-12-03 05:02:25,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:02:25,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 05:02:25,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 05:02:25,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dabb47f7-56b0-463f-9eeb-c5e7dddef430/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 05:02:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 05:02:25,844 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-03 05:02:25,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-03 05:02:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-12-03 05:02:25,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-12-03 05:02:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 05:02:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-03 05:02:25,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-03 05:02:25,845 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-03 05:02:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-03 05:02:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-12-03 05:02:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-12-03 05:02:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 05:02:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-03 05:02:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-03 05:02:25,846 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-12-03 05:02:25,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-12-03 05:02:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-03 05:02:25,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-03 05:02:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-03 05:02:25,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-03 05:02:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 05:02:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-12-03 05:02:25,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-12-03 05:02:25,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 05:02:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-12-03 05:02:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-12-03 05:02:25,848 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-12-03 05:02:25,848 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-12-03 05:02:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 05:02:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 05:02:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 05:02:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 05:02:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 05:02:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-12-03 05:02:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-12-03 05:02:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-03 05:02:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-03 05:02:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-12-03 05:02:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-12-03 05:02:26,246 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 05:02:26,248 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 05:02:50,142 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 05:02:50,432 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 05:02:50,432 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 05:02:50,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:02:50 BoogieIcfgContainer [2023-12-03 05:02:50,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 05:02:50,437 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 05:02:50,438 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 05:02:50,448 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 05:02:50,448 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:02:50" (1/1) ... [2023-12-03 05:02:50,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 05:02:50,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 1612 states and 2451 transitions. [2023-12-03 05:02:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2451 transitions. [2023-12-03 05:02:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2023-12-03 05:02:50,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:50,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:04:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:49,324 INFO L134 CoverageAnalysis]: Checked inductivity of 43472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43472 trivial. 0 not checked. [2023-12-03 05:04:59,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:05:09,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:05:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2449 states to 1612 states and 2449 transitions. [2023-12-03 05:05:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2449 transitions. [2023-12-03 05:05:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2023-12-03 05:05:09,723 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:09,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:06:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:22,345 INFO L134 CoverageAnalysis]: Checked inductivity of 43474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43474 trivial. 0 not checked. [2023-12-03 05:09:32,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:09:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 1623 states and 2496 transitions. [2023-12-03 05:09:32,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1623 states and 2496 transitions. [2023-12-03 05:09:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2023-12-03 05:09:32,778 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:32,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:11:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 43472 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43472 trivial. 0 not checked. [2023-12-03 05:13:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:13:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2504 states to 1628 states and 2503 transitions. [2023-12-03 05:13:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2503 transitions. [2023-12-03 05:13:59,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 893 [2023-12-03 05:13:59,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:13:59,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:15:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat