./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 e7bb482b 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_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/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_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:54:16,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:54:16,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:54:16,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:54:16,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:54:16,607 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:54:16,608 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:54:16,609 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:54:16,609 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:54:16,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:54:16,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:54:16,611 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:54:16,612 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:54:16,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:54:16,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:54:16,613 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:54:16,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:54:16,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:54:16,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:54:16,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:54:16,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:54:16,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:54:16,617 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:54:16,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:54:16,619 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:54:16,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:54:16,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:54:16,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:54:16,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:16,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:54:16,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:54:16,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:54:16,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:54:16,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:54:16,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:54:16,634 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:54:16,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:54:16,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:54:16,635 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:54:16,636 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_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2023-11-06 22:54:16,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:54:16,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:54:16,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:54:16,964 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:54:16,965 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:54:16,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-06 22:54:20,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:54:20,659 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:54:20,660 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-06 22:54:20,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/data/3aadf6eec/e23e9f9ec0554706a1888b06e48fe2cf/FLAG4cfeb1821 [2023-11-06 22:54:20,722 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/data/3aadf6eec/e23e9f9ec0554706a1888b06e48fe2cf [2023-11-06 22:54:20,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:54:20,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:54:20,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:20,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:54:20,738 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:54:20,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:20" (1/1) ... [2023-11-06 22:54:20,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715e6c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:20, skipping insertion in model container [2023-11-06 22:54:20,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:54:20" (1/1) ... [2023-11-06 22:54:20,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:54:21,055 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_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-06 22:54:21,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:21,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:54:21,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok2.i","-S") [42] [2023-11-06 22:54:21,754 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_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-06 22:54:22,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:54:22,086 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:54:22,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22 WrapperNode [2023-11-06 22:54:22,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:54:22,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:22,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:54:22,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:54:22,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,454 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8386 [2023-11-06 22:54:22,454 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:54:22,455 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:54:22,455 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:54:22,455 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:54:22,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:54:22,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:54:22,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:54:22,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:54:22,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (1/1) ... [2023-11-06 22:54:22,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:54:22,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:54:22,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:54:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4a975e-8327-4cf3-ad3b-5fd6e90ddbdc/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:54:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-06 22:54:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-06 22:54:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-06 22:54:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-06 22:54:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:54:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-06 22:54:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-06 22:54:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-06 22:54:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-06 22:54:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-06 22:54:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-06 22:54:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-06 22:54:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-06 22:54:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-06 22:54:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-06 22:54:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-06 22:54:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-06 22:54:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-06 22:54:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-06 22:54:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-06 22:54:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-06 22:54:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:54:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-06 22:54:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-06 22:54:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-06 22:54:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-06 22:54:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-06 22:54:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-06 22:54:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-06 22:54:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-06 22:54:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-06 22:54:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-06 22:54:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-06 22:54:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-06 22:54:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-06 22:54:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-06 22:54:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:54:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-06 22:54:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-06 22:54:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-06 22:54:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-06 22:54:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-06 22:54:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-06 22:54:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-06 22:54:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-06 22:54:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-06 22:54:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-06 22:54:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-06 22:54:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-06 22:54:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-06 22:54:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-06 22:54:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-06 22:54:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-06 22:54:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-06 22:54:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-06 22:54:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-06 22:54:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-06 22:54:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-06 22:54:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-06 22:54:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-06 22:54:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-06 22:54:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-06 22:54:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-06 22:54:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-06 22:54:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-06 22:54:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-06 22:54:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-06 22:54:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-06 22:54:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-06 22:54:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-06 22:54:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-06 22:54:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-06 22:54:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-06 22:54:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-06 22:54:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-06 22:54:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-06 22:54:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-06 22:54:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-06 22:54:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-06 22:54:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-06 22:54:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-06 22:54:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-06 22:54:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-06 22:54:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-06 22:54:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-06 22:54:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-06 22:54:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-06 22:54:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-06 22:54:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-06 22:54:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-06 22:54:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-06 22:54:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:54:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-06 22:54:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-06 22:54:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:54:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:54:23,608 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:54:23,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:54:47,298 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:54:47,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:54:47,323 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:54:47,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:47 BoogieIcfgContainer [2023-11-06 22:54:47,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:54:47,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:54:47,333 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:54:47,336 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:54:47,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:54:20" (1/3) ... [2023-11-06 22:54:47,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ad5b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:47, skipping insertion in model container [2023-11-06 22:54:47,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:54:22" (2/3) ... [2023-11-06 22:54:47,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43ad5b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:54:47, skipping insertion in model container [2023-11-06 22:54:47,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:54:47" (3/3) ... [2023-11-06 22:54:47,340 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2023-11-06 22:54:47,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:54:47,361 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:54:47,469 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:54:47,476 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ed64271, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:54:47,476 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:54:47,490 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) [2023-11-06 22:54:47,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-06 22:54:47,513 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:54:47,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:54:47,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:54:47,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:54:47,520 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2023-11-06 22:54:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:54:47,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616877123] [2023-11-06 22:54:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:54:47,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms