./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8 --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 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 20:21:13,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:21:13,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:21:13,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:21:13,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:21:13,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:21:13,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:21:13,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:21:13,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:21:13,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:21:13,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:21:13,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:21:13,665 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:21:13,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:21:13,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:21:13,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:21:13,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:21:13,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:21:13,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:21:13,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:21:13,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:21:13,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:21:13,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:21:13,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:21:13,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:21:13,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:21:13,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:21:13,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:21:13,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:21:13,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:21:13,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:21:13,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:21:13,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:21:13,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:21:13,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:21:13,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:21:13,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:21:13,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:21:13,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:21:13,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:21:13,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:21:13,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 20:21:13,709 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:21:13,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:21:13,709 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:21:13,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:21:13,710 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:21:13,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:21:13,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:21:13,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:21:13,720 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:21:13,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:21:13,721 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:21:13,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:21:13,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:21:13,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:21:13,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:21:13,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:21:13,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:21:13,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:21:13,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:21:13,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:21:13,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:21:13,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:21:13,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:21:13,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:21:13,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:21:13,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:21:13,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:21:13,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:21:13,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:21:13,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:21:13,725 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:21:13,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:21:13,725 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:21:13,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:21:13,725 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:21:13,725 INFO L138 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_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 [2022-12-13 20:21:13,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:21:13,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:21:13,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:21:13,936 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:21:13,937 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:21:13,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2022-12-13 20:21:16,659 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:21:16,973 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:21:16,973 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2022-12-13 20:21:16,989 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/data/6f79e5280/01ded45ce2c74c94a829f597960c3e9e/FLAG955c34a23 [2022-12-13 20:21:17,002 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/data/6f79e5280/01ded45ce2c74c94a829f597960c3e9e [2022-12-13 20:21:17,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:21:17,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:21:17,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:21:17,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:21:17,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:21:17,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383026c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17, skipping insertion in model container [2022-12-13 20:21:17,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:21:17,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:21:17,204 WARN L237 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_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c[1719,1732] [2022-12-13 20:21:17,250 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 20:21:17,250 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 20:21:17,252 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 20:21:17,255 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,256 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,256 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,256 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,264 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 20:21:17,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:21:17,445 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:21:17,454 WARN L237 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_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c[1719,1732] [2022-12-13 20:21:17,467 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 20:21:17,467 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 20:21:17,468 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 20:21:17,470 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,470 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,470 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,471 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 20:21:17,474 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 20:21:17,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:21:17,655 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:21:17,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17 WrapperNode [2022-12-13 20:21:17,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:21:17,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:21:17,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:21:17,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:21:17,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,866 INFO L138 Inliner]: procedures = 58, calls = 3129, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5929 [2022-12-13 20:21:17,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:21:17,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:21:17,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:21:17,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:21:17,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:17,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:18,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:18,012 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:18,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:18,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:21:18,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:21:18,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:21:18,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:21:18,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (1/1) ... [2022-12-13 20:21:18,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:21:18,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:21:18,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:21:18,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7aaf6dd0-e8de-409d-a053-42c71d9e8f85/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:21:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:21:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-13 20:21:18,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-13 20:21:18,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 20:21:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 20:21:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 20:21:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 20:21:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:21:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 20:21:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 20:21:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 20:21:18,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 20:21:18,113 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 20:21:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 20:21:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:21:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 20:21:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 20:21:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 20:21:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 20:21:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-13 20:21:18,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-13 20:21:18,114 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 20:21:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 20:21:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 20:21:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 20:21:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 20:21:18,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 20:21:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:21:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:21:18,115 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 20:21:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 20:21:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 20:21:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 20:21:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-13 20:21:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-13 20:21:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-13 20:21:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-13 20:21:18,116 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 20:21:18,116 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 20:21:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:21:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:21:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:21:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 20:21:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 20:21:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 20:21:18,117 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 20:21:18,117 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 20:21:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 20:21:18,118 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-13 20:21:18,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-13 20:21:18,501 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:21:18,503 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:21:29,087 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:21:29,101 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:21:29,101 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 20:21:29,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:21:29 BoogieIcfgContainer [2022-12-13 20:21:29,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:21:29,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:21:29,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:21:29,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:21:29,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:21:17" (1/3) ... [2022-12-13 20:21:29,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0fa5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:21:29, skipping insertion in model container [2022-12-13 20:21:29,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:17" (2/3) ... [2022-12-13 20:21:29,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0fa5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:21:29, skipping insertion in model container [2022-12-13 20:21:29,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:21:29" (3/3) ... [2022-12-13 20:21:29,111 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-2.c [2022-12-13 20:21:29,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:21:29,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 20:21:29,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:21:29,201 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;@14b8cadb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:21:29,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 20:21:29,211 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 1372 states have (on average 1.1989795918367347) internal successors, (1645), 1377 states have internal predecessors, (1645), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 936 states have call predecessors, (938), 938 states have call successors, (938) [2022-12-13 20:21:29,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2022-12-13 20:21:29,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:21:29,278 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:21:29,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 20:21:29,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:21:29,282 INFO L85 PathProgramCache]: Analyzing trace with hash -662020641, now seen corresponding path program 1 times [2022-12-13 20:21:29,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:21:29,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603648942] [2022-12-13 20:21:29,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:21:29,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms