./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/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_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/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_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/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 d2d3aad0694c3b388c0809528dd70602c78583397ee307f7b8ddb787c2822233 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:27:20,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:27:20,529 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:27:20,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:27:20,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:27:20,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:27:20,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:27:20,568 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:27:20,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:27:20,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:27:20,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:27:20,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:27:20,571 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:27:20,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:27:20,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:27:20,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:27:20,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:27:20,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:27:20,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:27:20,575 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:27:20,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:27:20,577 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:27:20,577 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:27:20,578 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:27:20,578 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:27:20,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:27:20,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:27:20,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:27:20,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:27:20,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:27:20,581 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:27:20,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:27:20,581 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:27:20,582 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_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2d3aad0694c3b388c0809528dd70602c78583397ee307f7b8ddb787c2822233 [2023-12-03 03:27:20,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:27:20,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:27:20,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:27:20,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:27:20,840 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:27:20,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-1.c [2023-12-03 03:27:23,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:27:23,849 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:27:23,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-1.c [2023-12-03 03:27:23,871 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/data/d539e7483/4df17d80fbe645ca84f05d03054b6103/FLAGe36ddaed8 [2023-12-03 03:27:23,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/data/d539e7483/4df17d80fbe645ca84f05d03054b6103 [2023-12-03 03:27:23,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:27:23,888 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:27:23,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:27:23,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:27:23,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:27:23,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:27:23" (1/1) ... [2023-12-03 03:27:23,897 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2022fdf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:23, skipping insertion in model container [2023-12-03 03:27:23,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:27:23" (1/1) ... [2023-12-03 03:27:23,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:27:24,124 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_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-1.c[1510,1523] [2023-12-03 03:27:24,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:27:24,437 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:27:24,447 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [38] [2023-12-03 03:27:24,452 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_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M1-1.c[1510,1523] [2023-12-03 03:27:24,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:27:24,638 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:27:24,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24 WrapperNode [2023-12-03 03:27:24,638 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:27:24,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:27:24,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:27:24,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:27:24,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:24,691 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:24,841 INFO L138 Inliner]: procedures = 55, calls = 2033, calls flagged for inlining = 22, calls inlined = 22, statements flattened = 4113 [2023-12-03 03:27:24,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:27:24,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:27:24,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:27:24,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:27:24,852 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:24,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:24,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:24,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:25,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:25,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:25,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:25,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:25,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:27:25,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:27:25,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:27:25,126 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:27:25,127 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:27:24" (1/1) ... [2023-12-03 03:27:25,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:27:25,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:27:25,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:27:25,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2b27dba-6b7d-48d3-a3ee-bf6c146178c6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:27:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:27:25,188 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-12-03 03:27:25,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-12-03 03:27:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-12-03 03:27:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-12-03 03:27:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:27:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-12-03 03:27:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-12-03 03:27:25,189 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-12-03 03:27:25,189 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-12-03 03:27:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-12-03 03:27:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-12-03 03:27:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 03:27:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-12-03 03:27:25,190 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-12-03 03:27:25,190 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-12-03 03:27:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-12-03 03:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-03 03:27:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-12-03 03:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-03 03:27:25,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-12-03 03:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:27:25,191 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-12-03 03:27:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-12-03 03:27:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 03:27:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-12-03 03:27:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-12-03 03:27:25,192 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 03:27:25,192 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 03:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:27:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-12-03 03:27:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-12-03 03:27:25,193 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-12-03 03:27:25,193 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-12-03 03:27:25,194 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-12-03 03:27:25,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-12-03 03:27:25,563 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:27:25,566 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:27:49,582 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:27:49,847 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:27:49,847 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:27:49,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:27:49 BoogieIcfgContainer [2023-12-03 03:27:49,850 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:27:49,850 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:27:49,851 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:27:49,860 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:27:49,860 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:27:49" (1/1) ... [2023-12-03 03:27:49,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:27:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:27:49,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2372 states to 1559 states and 2372 transitions. [2023-12-03 03:27:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2372 transitions. [2023-12-03 03:27:50,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1563 [2023-12-03 03:27:50,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:27:50,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:29:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:29:44,009 INFO L134 CoverageAnalysis]: Checked inductivity of 62311 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 62242 trivial. 0 not checked. [2023-12-03 03:29:54,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 03:30:04,231 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 03:30:04,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:30:04,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 1559 states and 2370 transitions. [2023-12-03 03:30:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 1559 states and 2370 transitions. [2023-12-03 03:30:04,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2023-12-03 03:30:04,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:30:04,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:31:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:32:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 65119 backedges. 3 proven. 89 refuted. 0 times theorem prover too weak. 65027 trivial. 0 not checked. [2023-12-03 03:32:49,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:32:49,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 1564 states and 2382 transitions. [2023-12-03 03:32:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2382 transitions. [2023-12-03 03:32:49,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2023-12-03 03:32:49,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:32:49,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:34:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:35:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 65129 backedges. 3 proven. 87 refuted. 0 times theorem prover too weak. 65039 trivial. 0 not checked. [2023-12-03 03:35:52,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:35:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 1564 states and 2382 transitions. [2023-12-03 03:35:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2382 transitions. [2023-12-03 03:35:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2023-12-03 03:35:52,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:35:52,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:37:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:38:49,279 INFO L134 CoverageAnalysis]: Checked inductivity of 65119 backedges. 3 proven. 89 refuted. 0 times theorem prover too weak. 65027 trivial. 0 not checked. [2023-12-03 03:38:49,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:38:49,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 1564 states and 2382 transitions. [2023-12-03 03:38:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2382 transitions. [2023-12-03 03:38:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1711 [2023-12-03 03:38:49,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:38:49,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:40:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:47,819 INFO L134 CoverageAnalysis]: Checked inductivity of 65129 backedges. 3 proven. 87 refuted. 0 times theorem prover too weak. 65039 trivial. 0 not checked. [2023-12-03 03:41:47,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:47,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 1564 states and 2382 transitions. [2023-12-03 03:41:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2382 transitions. [2023-12-03 03:41:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2023-12-03 03:41:47,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:47,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms